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cargo / microsandbox-filesystem / 0.7.8

microsandbox-filesystem 0.7.8

bitbison: flagged, behavior flagged, dependencies notes, posture not checked, pipeline clean, 1 of 1 jobs captured 1 detection
processes
241
operations
50K
packages
191
compiler runs
231
connections
3
job time
2m 15s
capture
605 KB
records
92K
bytes / record
6.6

Build behaviourits build script reached github.com, release-assets.githubusercontent.comundeclared fetchfetch went into the outputfetched outside crates.iocompiled C/C++

run 49f95bd5-0dcd-4ea8-a8a7-3a2091ef5f28 · built 2026-10-09 · complete

Artifact

file · retained · product · graph v1
1

Checks

12 of 14 clear Network activity Build-time dependency advisories
Build behavior▲✓✓✓✓✓✓✓
Supply chain✓▲✓✓✓
Pipeline✓

Detections

1
  • Build script reached github.com +1
    microsandbox-filesystem 0.7.8 › github.com:443, release-assets.githubusercontent.com:443
    medium

Detection

mediumwitnessed

Build script reached github.com +1

Unexpected network connection

Subject
microsandbox-filesystem 0.7.8
Destination
github.com:443, release-assets.githubusercontent.com:443
Reaches
Jobs
build-test
Rule
egress · microsandbox

Evidence

  1. Connection outside the process’s allowed destinationscause

    connection to github.com:443, opened by build_script_build-9964c26a18a5a558

    subject github.com:443

    by /home/runner/work/microsandbox/microsandbox/target/release/build/microsandbox-filesystem-9964c26a18a5a558/build-script-build

  2. Connection outside the process’s allowed destinationscause

    connection to release-assets.githubusercontent.com:443, opened by build_script_build-9964c26a18a5a558

    subject release-assets.githubusercontent.com:443

    by /home/runner/work/microsandbox/microsandbox/target/release/build/microsandbox-filesystem-9964c26a18a5a558/build-script-build

  3. Connection opened by a build script or child processsupport

    the opener is the build script at /home/runner/work/microsandbox/microsandbox/target/release/build/microsandbox-filesystem-9964c26a18a5a558/build_script_build-9964c26a18a5a558

  4. Build script fetched what its crate documents it fetchessupport

    microsandbox-filesystem's build script fetches a prebuilt microsandbox component from github.com, release-assets.githubusercontent.com: microsandbox's build.rs fetches its runtime pieces from GitHub releases

Processes

build-test

cargo›cargo›build-script-build

Ran
/home/runner/work/microsandbox/microsandbox/target/release/build/microsandbox-filesystem-9964c26a18a5a558/build-script-build
Invoked by
cargo build --release --locked --message-format=json-render-diagnostics
Lineage · 3 processes
  1. cargocargo build --release --locked --message-format=json-render-diagnostics2378
  2. cargo/home/runner/.rustup/toolchains/1.99.0-x86_64-unknown-linux-gnu/bin/cargo build --release --locked --message-format=json-render-diagnostics2378
  3. build-script-build/home/runner/work/microsandbox/microsandbox/target/release/build/microsandbox-filesystem-9964c26a18a5a558/build-script-build4898

Remediation

The crate's build script reached the network at compile time, outside the registry's checksums. Build it from what the registry ships (the crate's own environment variable or from-source feature), or record the download as accepted once it is reviewed.

Network

3 peers
  • github.com:443 microsandbox-filesystem's own build code · build_script_build-9964c26a18a5a558 (microsandbox) · GitHub, Inc. · 1 file · went into an output undeclared
  • release-assets.githubusercontent.com:443 microsandbox-filesystem's own build code · build_script_build-9964c26a18a5a558 (microsandbox) · Fastly, Inc. · 1 file · went into an output undeclared
  • static.crates.io:8080 the package manager · cargo (microsandbox) via crates.io · 14,459 files · went into an output ecosystem
Dependencies201Build behaviour
adler22.0.1
anyhow1.0.104build script, not run
async-trait0.1.92proc macro
autocfg1.5.0
base640.23.1
bincode2.0.1
bincode_derive2.0.1proc macro
bitflags1.3.2
bitflags2.11.1
block-buffer0.12.0
bytes1.12.1
bzip20.5.2
bzip2-sys0.1.13+1.0.8build script
caps0.5.6
cc1.2.58
cfg-if1.0.4
cfg_aliases0.2.1
combine4.6.7
const-oid0.10.2
core-foundation0.10.1
core-foundation-sys0.8.7
cpufeatures0.3.0
crc32fast1.5.0build script
crossbeam-channel0.5.17
crossbeam-utils0.8.21build script
crypto-common0.2.2
digest0.11.2
dirs7.0.0
dirs-sys0.5.0
equivalent1.0.2
errno0.3.14
fastrand2.3.0
find-msvc-tools0.1.9
flate21.1.10
foldhash0.1.5
foldhash0.2.0
getrandom0.2.17
getrandom0.3.4build script
getrandom0.4.2build script
hashbrown0.15.5
hashbrown0.16.1
hashbrown0.17.1
heck0.5.0
hex0.4.3
http1.5.0
httparse1.10.1build script
hybrid-array0.4.13
id-arena2.3.0
indexmap2.13.0
itoa1.0.18
jni0.22.4build script, not run
jni-macros0.22.4build script, not runproc macro
jni-sys0.4.1
jni-sys-macros0.4.1proc macro
jobserver0.1.34
kvm-bindings0.14.0
kvm-ioctls0.24.0build script
ld-linux-x86-64.so.2system library
leb128fmt0.1.0
libc0.2.190build script
libc.so.6system library
libgcc_s.so.1system library
libloading0.8.9
libm.so.6system library
libmvec.so.1system library
libredox0.1.15
linux-raw-sys0.12.1
log0.4.29
lru0.18.5
memchr2.8.0
memoffset0.9.1build script
microsandbox-utils0.7.8
miniz_oxide0.8.9
miniz_oxide0.9.1
msb-imago0.1.7build script
msb-vm-memory0.18.0-msb.2
msb_krun0.1.41
msb_krun_arch0.1.41
msb_krun_arch_gen0.1.41
msb_krun_cpuid0.1.41
msb_krun_devices0.1.41
msb_krun_hvf0.1.41build script, not run
msb_krun_kernel0.1.41
msb_krun_polly0.1.41
msb_krun_smbios0.1.41
msb_krun_utils0.1.41
msb_krun_vmm0.1.41
nix0.30.1build script
once_cell1.21.4
openssl-probe0.2.1
option-ext0.2.0
page_size0.6.0
percent-encoding2.3.2
pin-project-lite0.2.17
pkg-config0.3.32
ppv-lite860.2.21
prettyplease0.2.37build script, not run
proc-macro21.0.107build script
quote1.0.47build script
r-efi5.3.0
r-efi6.0.0
rand0.9.4
rand_chacha0.9.0
rand_core0.9.5
redox_users0.5.2
reflink-copy0.1.30
ring0.17.14build scriptprebuilt objects
rustc_version0.4.1
rustix1.1.4build script
rustls0.23.45build script
rustls-native-certs0.8.4
rustls-pki-types1.15.1
rustls-platform-verifier0.7.1
rustls-platform-verifier-android0.2.0
rustls-webpki0.103.15
same-file1.0.6
schannel0.1.29
scopeguard1.2.0
security-framework3.7.0
security-framework-sys2.17.0
semver1.0.28
serde1.0.229build script
serde_core1.0.229build script
serde_derive1.0.229proc macro
serde_json1.0.151build script, not run
sha20.11.0
shlex1.3.0
simd-adler320.3.9
simd_cesu81.2.0
simdutf80.1.5
subtle2.6.1
syn2.0.119
syn3.0.6
tempfile3.27.0
thiserror2.0.21build script
thiserror-impl2.0.21proc macro
tokio1.53.2
tracing0.1.44
tracing-attributes0.1.31proc macro
tracing-core0.1.36
typenum1.20.1
unicode-ident1.0.24
unicode-xid0.2.6
untrusted0.9.0
unty0.0.4
ureq3.4.2
ureq-proto0.6.4
utf8-zero0.8.1
virtio-bindings0.2.7
virtue0.0.18
vm-fdt0.3.0
vmm-sys-util0.15.0
walkdir2.5.0
wasi0.11.1+wasi-snapshot-preview1
wasip21.0.2+wasi-0.2.9
wasip30.4.0+wasi-0.3.0-rc-2026-01-06
wasm-encoder0.244.0
wasm-metadata0.244.0
wasmparser0.244.0
webpki-root-certs1.0.6
webpki-roots1.0.9
winapi0.3.9build script, not run
winapi-i686-pc-windows-gnu0.4.0build script, not runprebuilt objects
winapi-util0.1.11
winapi-x86_64-pc-windows-gnu0.4.0build script, not runprebuilt objects
windows0.62.2
windows-collections0.3.2
windows-core0.62.2
windows-future0.3.2
windows-implement0.60.2proc macro
windows-interface0.59.3proc macro
windows-link0.2.1
windows-numerics0.3.1
windows-result0.4.1
windows-strings0.5.1
windows-sys0.52.0
windows-sys0.61.2
windows-targets0.52.6
windows-threading0.2.1
windows_aarch64_gnullvm0.52.6build script, not runprebuilt objects
windows_aarch64_msvc0.52.6build script, not runprebuilt objects
windows_i686_gnu0.52.6build script, not runprebuilt objects
windows_i686_gnullvm0.52.6build script, not runprebuilt objects
windows_i686_msvc0.52.6build script, not runprebuilt objects
windows_x86_64_gnu0.52.6build script, not runprebuilt objects
windows_x86_64_gnullvm0.52.6build script, not runprebuilt objects
windows_x86_64_msvc0.52.6build script, not runprebuilt objects
wit-bindgen0.51.0build script, not runprebuilt objects
wit-bindgen-core0.51.0
wit-bindgen-rust0.51.0build script, not run
wit-bindgen-rust-macro0.51.0build script, not runproc macro
wit-component0.244.0
wit-parser0.244.0
zerocopy0.8.48build script
zerocopy-derive0.8.48proc macro
zeroize1.9.0
zlib-rs0.6.3
zmij1.0.21build script, not run
zstd0.13.3
zstd-safe7.2.4build script
zstd-sys2.1.0+zstd.1.5.7build script

Raw data

capture
605 KB
records
91,916
bytes per record
6.6

Loading a sample of the capture

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1 of 1 jobs captured: build-test success · Generated 2026-10-09 · run 49f95bd5-0dcd-4ea8-a8a7-3a2091ef5f28

analysis 0.1.0 · 2026-10-09 · 6b83e9f · graph v1