[INFO] crate mkv_chain 0.3.1 is already in cache
[INFO] checking mkv_chain-0.3.1 against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] extracting crate mkv_chain 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mkv_chain 0.3.1 on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mkv_chain 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mkv_chain 0.3.1
[INFO] tweaked toml for crates.io crate mkv_chain 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate mkv_chain 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a66c121c6d579aa01765b891e38e030b85281738eb2d01f34f396fe133d42551
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a66c121c6d579aa01765b891e38e030b85281738eb2d01f34f396fe133d42551"`
[INFO] [stderr]     Checking mkv_chain v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking pulldown-cmark v0.4.1
[INFO] [stderr]     Checking version-sync v0.8.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `"docker" "inspect" "a66c121c6d579aa01765b891e38e030b85281738eb2d01f34f396fe133d42551"`
[INFO] running `"docker" "rm" "-f" "a66c121c6d579aa01765b891e38e030b85281738eb2d01f34f396fe133d42551"`
[INFO] [stdout] a66c121c6d579aa01765b891e38e030b85281738eb2d01f34f396fe133d42551