[INFO] fetching crate crater 0.1.0...
[INFO] testing crater-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate crater 0.1.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate crater 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crater 0.1.0
[INFO] finished tweaking crates.io crate crater 0.1.0
[INFO] tweaked toml for crates.io crate crater 0.1.0 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate crater 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccf809d4cdf77310ec849e7535de7bbcae74894be1597789a3f7c47a771ceb13
[INFO] running `Command { std: "docker" "start" "-a" "ccf809d4cdf77310ec849e7535de7bbcae74894be1597789a3f7c47a771ceb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccf809d4cdf77310ec849e7535de7bbcae74894be1597789a3f7c47a771ceb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf809d4cdf77310ec849e7535de7bbcae74894be1597789a3f7c47a771ceb13", kill_on_drop: false }`
[INFO] [stdout] ccf809d4cdf77310ec849e7535de7bbcae74894be1597789a3f7c47a771ceb13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 893ca5627d83febba514dab63948d52c3f403234eac0feacff0781c7c5110114
[INFO] running `Command { std: "docker" "start" "-a" "893ca5627d83febba514dab63948d52c3f403234eac0feacff0781c7c5110114", kill_on_drop: false }`
[INFO] [stderr]    Compiling crater v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "893ca5627d83febba514dab63948d52c3f403234eac0feacff0781c7c5110114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "893ca5627d83febba514dab63948d52c3f403234eac0feacff0781c7c5110114", kill_on_drop: false }`
[INFO] [stdout] 893ca5627d83febba514dab63948d52c3f403234eac0feacff0781c7c5110114
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08caa556946d9f5cd523441e5da1d84b2aa228b6649721db8d51c607b88b2f12
[INFO] running `Command { std: "docker" "start" "-a" "08caa556946d9f5cd523441e5da1d84b2aa228b6649721db8d51c607b88b2f12", kill_on_drop: false }`
[INFO] [stderr]    Compiling crater v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "08caa556946d9f5cd523441e5da1d84b2aa228b6649721db8d51c607b88b2f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08caa556946d9f5cd523441e5da1d84b2aa228b6649721db8d51c607b88b2f12", kill_on_drop: false }`
[INFO] [stdout] 08caa556946d9f5cd523441e5da1d84b2aa228b6649721db8d51c607b88b2f12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fba7e67038c0d3c3938404e8624bb9dc99163798ba98928f9b78805b2d6a84a7
[INFO] running `Command { std: "docker" "start" "-a" "fba7e67038c0d3c3938404e8624bb9dc99163798ba98928f9b78805b2d6a84a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crater-45e8cdb379252e82)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fba7e67038c0d3c3938404e8624bb9dc99163798ba98928f9b78805b2d6a84a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba7e67038c0d3c3938404e8624bb9dc99163798ba98928f9b78805b2d6a84a7", kill_on_drop: false }`
[INFO] [stdout] fba7e67038c0d3c3938404e8624bb9dc99163798ba98928f9b78805b2d6a84a7