[INFO] fetching crate vacuum 0.1.2...
[INFO] testing vacuum-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate vacuum 0.1.2 into /workspace/builds/worker-72/source
[INFO] validating manifest of crates.io crate vacuum 0.1.2 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 vacuum 0.1.2
[INFO] finished tweaking crates.io crate vacuum 0.1.2
[INFO] tweaked toml for crates.io crate vacuum 0.1.2 written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] crate crates.io crate vacuum 0.1.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.65
[INFO] [stderr]   Downloaded web-sys v0.3.42
[INFO] [stderr]   Downloaded js-sys v0.3.42
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded ureq v1.3.0
[INFO] [stderr]   Downloaded chrono v0.4.13
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 8c96870d0c4413303f087203dcb238c9f1d401058c43fb775819231559a8d0a6
[INFO] running `Command { std: "docker" "start" "-a" "8c96870d0c4413303f087203dcb238c9f1d401058c43fb775819231559a8d0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c96870d0c4413303f087203dcb238c9f1d401058c43fb775819231559a8d0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c96870d0c4413303f087203dcb238c9f1d401058c43fb775819231559a8d0a6", kill_on_drop: false }`
[INFO] [stdout] 8c96870d0c4413303f087203dcb238c9f1d401058c43fb775819231559a8d0a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 41904a7cc97e9ac2ee7c5844b471ea82dd6dd576ca1d8c6abb3a0362338e1954
[INFO] running `Command { std: "docker" "start" "-a" "41904a7cc97e9ac2ee7c5844b471ea82dd6dd576ca1d8c6abb3a0362338e1954", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling chunked_transfer v1.2.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling qstring v0.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling cookie v0.13.3
[INFO] [stderr]    Compiling ureq v1.3.0
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]    Compiling vacuum v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.62s
[INFO] running `Command { std: "docker" "inspect" "41904a7cc97e9ac2ee7c5844b471ea82dd6dd576ca1d8c6abb3a0362338e1954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41904a7cc97e9ac2ee7c5844b471ea82dd6dd576ca1d8c6abb3a0362338e1954", kill_on_drop: false }`
[INFO] [stdout] 41904a7cc97e9ac2ee7c5844b471ea82dd6dd576ca1d8c6abb3a0362338e1954
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 35bc0fe7b635bdf8616b73783a859f32b98934f430014e95b8ede8da77393531
[INFO] running `Command { std: "docker" "start" "-a" "35bc0fe7b635bdf8616b73783a859f32b98934f430014e95b8ede8da77393531", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vacuum v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "35bc0fe7b635bdf8616b73783a859f32b98934f430014e95b8ede8da77393531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35bc0fe7b635bdf8616b73783a859f32b98934f430014e95b8ede8da77393531", kill_on_drop: false }`
[INFO] [stdout] 35bc0fe7b635bdf8616b73783a859f32b98934f430014e95b8ede8da77393531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] b47d2af156b57ad93b78809c8c002ad9b273900a37eb552e4e47f6ca36f78bb1
[INFO] running `Command { std: "docker" "start" "-a" "b47d2af156b57ad93b78809c8c002ad9b273900a37eb552e4e47f6ca36f78bb1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vacuum-5722df71636ba006)
[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" "b47d2af156b57ad93b78809c8c002ad9b273900a37eb552e4e47f6ca36f78bb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b47d2af156b57ad93b78809c8c002ad9b273900a37eb552e4e47f6ca36f78bb1", kill_on_drop: false }`
[INFO] [stdout] b47d2af156b57ad93b78809c8c002ad9b273900a37eb552e4e47f6ca36f78bb1