[INFO] fetching crate lub 0.0.0...
[INFO] testing lub-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate lub 0.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate lub 0.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lub 0.0.0
[INFO] finished tweaking crates.io crate lub 0.0.0
[INFO] tweaked toml for crates.io crate lub 0.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85b12238817dd11faf739a48cf21e3a3694a21436f5cb56911752c43774637f0
[INFO] running `Command { std: "docker" "start" "-a" "85b12238817dd11faf739a48cf21e3a3694a21436f5cb56911752c43774637f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85b12238817dd11faf739a48cf21e3a3694a21436f5cb56911752c43774637f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b12238817dd11faf739a48cf21e3a3694a21436f5cb56911752c43774637f0", kill_on_drop: false }`
[INFO] [stdout] 85b12238817dd11faf739a48cf21e3a3694a21436f5cb56911752c43774637f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c5c0e0c10150d6f38a91998ab536839edf2a69dbe9c8502bb95fb629aed60f4
[INFO] running `Command { std: "docker" "start" "-a" "4c5c0e0c10150d6f38a91998ab536839edf2a69dbe9c8502bb95fb629aed60f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling lub v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "4c5c0e0c10150d6f38a91998ab536839edf2a69dbe9c8502bb95fb629aed60f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5c0e0c10150d6f38a91998ab536839edf2a69dbe9c8502bb95fb629aed60f4", kill_on_drop: false }`
[INFO] [stdout] 4c5c0e0c10150d6f38a91998ab536839edf2a69dbe9c8502bb95fb629aed60f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6376f1c628afc25bd9034e2013680723b4ee40e0efaa544a0e230477d7b6c2aa
[INFO] running `Command { std: "docker" "start" "-a" "6376f1c628afc25bd9034e2013680723b4ee40e0efaa544a0e230477d7b6c2aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling lub v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "6376f1c628afc25bd9034e2013680723b4ee40e0efaa544a0e230477d7b6c2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6376f1c628afc25bd9034e2013680723b4ee40e0efaa544a0e230477d7b6c2aa", kill_on_drop: false }`
[INFO] [stdout] 6376f1c628afc25bd9034e2013680723b4ee40e0efaa544a0e230477d7b6c2aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f7448b0450703818892e11155c9f122a1965c5a80201d5a2d36cdf55439d3ac
[INFO] running `Command { std: "docker" "start" "-a" "3f7448b0450703818892e11155c9f122a1965c5a80201d5a2d36cdf55439d3ac", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lub-39e0b51904650b63)
[INFO] [stderr]    Doc-tests lub
[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] [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" "3f7448b0450703818892e11155c9f122a1965c5a80201d5a2d36cdf55439d3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f7448b0450703818892e11155c9f122a1965c5a80201d5a2d36cdf55439d3ac", kill_on_drop: false }`
[INFO] [stdout] 3f7448b0450703818892e11155c9f122a1965c5a80201d5a2d36cdf55439d3ac