[INFO] crate silkbag 0.0.1 is already in cache
[INFO] checking silkbag-0.0.1 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate silkbag 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate silkbag 0.0.1 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate silkbag 0.0.1
[INFO] finished tweaking crates.io crate silkbag 0.0.1
[INFO] tweaked toml for crates.io crate silkbag 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b17c7957600db2817b452298bc71db23c26a910bdaae13fe6c4f2412731c963
[INFO] running `"docker" "start" "-a" "2b17c7957600db2817b452298bc71db23c26a910bdaae13fe6c4f2412731c963"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking threadpool v1.8.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking imagefmt v4.0.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking generic-array v0.13.2
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "2b17c7957600db2817b452298bc71db23c26a910bdaae13fe6c4f2412731c963"`
[INFO] running `"docker" "rm" "-f" "2b17c7957600db2817b452298bc71db23c26a910bdaae13fe6c4f2412731c963"`
[INFO] [stdout] 2b17c7957600db2817b452298bc71db23c26a910bdaae13fe6c4f2412731c963