[INFO] crate rust-mnist 0.1.4 is already in cache
[INFO] checking rust-mnist-0.1.4 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate rust-mnist 0.1.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rust-mnist 0.1.4 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust-mnist 0.1.4
[INFO] finished tweaking crates.io crate rust-mnist 0.1.4
[INFO] tweaked toml for crates.io crate rust-mnist 0.1.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate rust-mnist 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] c3df7fa5374d78d36c949f1c1a853e5574168d1ef734958c0e9eddc4996cb30a
[INFO] running `"docker" "start" "-a" "c3df7fa5374d78d36c949f1c1a853e5574168d1ef734958c0e9eddc4996cb30a"`
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking rust-mnist v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking bstr v0.2.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.84s
[INFO] running `"docker" "inspect" "c3df7fa5374d78d36c949f1c1a853e5574168d1ef734958c0e9eddc4996cb30a"`
[INFO] running `"docker" "rm" "-f" "c3df7fa5374d78d36c949f1c1a853e5574168d1ef734958c0e9eddc4996cb30a"`
[INFO] [stdout] c3df7fa5374d78d36c949f1c1a853e5574168d1ef734958c0e9eddc4996cb30a
