[INFO] fetching crate opt 0.1.0...
[INFO] testing opt-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate opt 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate opt 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 opt 0.1.0
[INFO] finished tweaking crates.io crate opt 0.1.0
[INFO] tweaked toml for crates.io crate opt 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 821e2eecff41023afb1113427f746585ca00c3e7b684b367b540a6cf9cbd4d48
[INFO] running `Command { std: "docker" "start" "-a" "821e2eecff41023afb1113427f746585ca00c3e7b684b367b540a6cf9cbd4d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "821e2eecff41023afb1113427f746585ca00c3e7b684b367b540a6cf9cbd4d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821e2eecff41023afb1113427f746585ca00c3e7b684b367b540a6cf9cbd4d48", kill_on_drop: false }`
[INFO] [stdout] 821e2eecff41023afb1113427f746585ca00c3e7b684b367b540a6cf9cbd4d48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 589d000465894c05e21018b9c7895aac8d1418c6c5bc1ea0425526fc484f4336
[INFO] running `Command { std: "docker" "start" "-a" "589d000465894c05e21018b9c7895aac8d1418c6c5bc1ea0425526fc484f4336", kill_on_drop: false }`
[INFO] [stderr]    Compiling opt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "589d000465894c05e21018b9c7895aac8d1418c6c5bc1ea0425526fc484f4336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "589d000465894c05e21018b9c7895aac8d1418c6c5bc1ea0425526fc484f4336", kill_on_drop: false }`
[INFO] [stdout] 589d000465894c05e21018b9c7895aac8d1418c6c5bc1ea0425526fc484f4336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5e6c513ca03436c6e7cfe6aa727defea5543439d72b1d3361770e5641d57dee4
[INFO] running `Command { std: "docker" "start" "-a" "5e6c513ca03436c6e7cfe6aa727defea5543439d72b1d3361770e5641d57dee4", kill_on_drop: false }`
[INFO] [stderr]    Compiling opt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "5e6c513ca03436c6e7cfe6aa727defea5543439d72b1d3361770e5641d57dee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e6c513ca03436c6e7cfe6aa727defea5543439d72b1d3361770e5641d57dee4", kill_on_drop: false }`
[INFO] [stdout] 5e6c513ca03436c6e7cfe6aa727defea5543439d72b1d3361770e5641d57dee4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 8859754b947518560b66f979c17ae6e5bd7deb5b84f59cb62fd0aaa20ce9590b
[INFO] running `Command { std: "docker" "start" "-a" "8859754b947518560b66f979c17ae6e5bd7deb5b84f59cb62fd0aaa20ce9590b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/opt-ec6d54f9102e58e9)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests opt
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "8859754b947518560b66f979c17ae6e5bd7deb5b84f59cb62fd0aaa20ce9590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8859754b947518560b66f979c17ae6e5bd7deb5b84f59cb62fd0aaa20ce9590b", kill_on_drop: false }`
[INFO] [stdout] 8859754b947518560b66f979c17ae6e5bd7deb5b84f59cb62fd0aaa20ce9590b