[INFO] crate b2 0.1.0 is already in cache
[INFO] checking b2-0.1.0 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate b2 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate b2 0.1.0 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate b2 0.1.0
[INFO] finished tweaking crates.io crate b2 0.1.0
[INFO] tweaked toml for crates.io crate b2 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 768981b61d06f5d605a2ed4672087f888787bae6bf6388cbcc81b8b2cef3ccb7
[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" "768981b61d06f5d605a2ed4672087f888787bae6bf6388cbcc81b8b2cef3ccb7"`
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking gif v0.8.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking image v0.9.1
[INFO] [stderr]     Checking b2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `"docker" "inspect" "768981b61d06f5d605a2ed4672087f888787bae6bf6388cbcc81b8b2cef3ccb7"`
[INFO] running `"docker" "rm" "-f" "768981b61d06f5d605a2ed4672087f888787bae6bf6388cbcc81b8b2cef3ccb7"`
[INFO] [stdout] 768981b61d06f5d605a2ed4672087f888787bae6bf6388cbcc81b8b2cef3ccb7