[INFO] fetching crate unreferenced_files 1.1.0...
[INFO] testing unreferenced_files-1.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate unreferenced_files 1.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate unreferenced_files 1.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unreferenced_files 1.1.0
[INFO] finished tweaking crates.io crate unreferenced_files 1.1.0
[INFO] tweaked toml for crates.io crate unreferenced_files 1.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate unreferenced_files 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 136ff06f295c6d87c94e16f6b2bc6397c0e0448e133bf4814667376d8d59c7a6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "136ff06f295c6d87c94e16f6b2bc6397c0e0448e133bf4814667376d8d59c7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "136ff06f295c6d87c94e16f6b2bc6397c0e0448e133bf4814667376d8d59c7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136ff06f295c6d87c94e16f6b2bc6397c0e0448e133bf4814667376d8d59c7a6", kill_on_drop: false }`
[INFO] [stdout] 136ff06f295c6d87c94e16f6b2bc6397c0e0448e133bf4814667376d8d59c7a6
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46f900ec9ec7c445cb61e07854fca9406323a67c4ca0752bbd60558fa43c0e34
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "46f900ec9ec7c445cb61e07854fca9406323a67c4ca0752bbd60558fa43c0e34", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.8.1
[INFO] [stderr]    Compiling unreferenced_files v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.01s
[INFO] running `Command { std: "docker" "inspect" "46f900ec9ec7c445cb61e07854fca9406323a67c4ca0752bbd60558fa43c0e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f900ec9ec7c445cb61e07854fca9406323a67c4ca0752bbd60558fa43c0e34", kill_on_drop: false }`
[INFO] [stdout] 46f900ec9ec7c445cb61e07854fca9406323a67c4ca0752bbd60558fa43c0e34
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc57e99a6a8f172a09b0bf19055fb3c6126792ed912b4ae1578dd01cdd783127
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bc57e99a6a8f172a09b0bf19055fb3c6126792ed912b4ae1578dd01cdd783127", kill_on_drop: false }`
[INFO] [stderr]    Compiling unreferenced_files v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "bc57e99a6a8f172a09b0bf19055fb3c6126792ed912b4ae1578dd01cdd783127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc57e99a6a8f172a09b0bf19055fb3c6126792ed912b4ae1578dd01cdd783127", kill_on_drop: false }`
[INFO] [stdout] bc57e99a6a8f172a09b0bf19055fb3c6126792ed912b4ae1578dd01cdd783127
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b08fcf3ee1c4f58beb7a96ca652e984b87b2bbbc2d49c81d737fb4e13f04135
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b08fcf3ee1c4f58beb7a96ca652e984b87b2bbbc2d49c81d737fb4e13f04135", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unreferenced_files-b83a5bdd1228a484
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b08fcf3ee1c4f58beb7a96ca652e984b87b2bbbc2d49c81d737fb4e13f04135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b08fcf3ee1c4f58beb7a96ca652e984b87b2bbbc2d49c81d737fb4e13f04135", kill_on_drop: false }`
[INFO] [stdout] 8b08fcf3ee1c4f58beb7a96ca652e984b87b2bbbc2d49c81d737fb4e13f04135