[INFO] crate undo 0.40.0 is already in cache
[INFO] checking undo-0.40.0 against master#450abe80f193ccefbfcd48214d70520f2d507f0e for pr-73084
[INFO] extracting crate undo 0.40.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate undo 0.40.0 on toolchain 450abe80f193ccefbfcd48214d70520f2d507f0e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate undo 0.40.0
[INFO] finished tweaking crates.io crate undo 0.40.0
[INFO] tweaked toml for crates.io crate undo 0.40.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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] 1ac7e7b46ca3e86505e3635f722646d167eb9fbd7315ee489ce34a5ad9e1437d
[INFO] running `"docker" "start" "-a" "1ac7e7b46ca3e86505e3635f722646d167eb9fbd7315ee489ce34a5ad9e1437d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking undo v0.40.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.09s
[INFO] running `"docker" "inspect" "1ac7e7b46ca3e86505e3635f722646d167eb9fbd7315ee489ce34a5ad9e1437d"`
[INFO] running `"docker" "rm" "-f" "1ac7e7b46ca3e86505e3635f722646d167eb9fbd7315ee489ce34a5ad9e1437d"`
[INFO] [stdout] 1ac7e7b46ca3e86505e3635f722646d167eb9fbd7315ee489ce34a5ad9e1437d