[INFO] fetching crate optional_take 0.1.0...
[INFO] testing optional_take-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate optional_take 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate optional_take 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate optional_take 0.1.0
[INFO] finished tweaking crates.io crate optional_take 0.1.0
[INFO] tweaked toml for crates.io crate optional_take 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 181767ecdee0997b32b710d3b7ce0257ebc2f6c45f215724a35a82084ed6fc6d
[INFO] running `Command { std: "docker" "start" "-a" "181767ecdee0997b32b710d3b7ce0257ebc2f6c45f215724a35a82084ed6fc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "181767ecdee0997b32b710d3b7ce0257ebc2f6c45f215724a35a82084ed6fc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181767ecdee0997b32b710d3b7ce0257ebc2f6c45f215724a35a82084ed6fc6d", kill_on_drop: false }`
[INFO] [stdout] 181767ecdee0997b32b710d3b7ce0257ebc2f6c45f215724a35a82084ed6fc6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36de132a8087cb6a5ed1fa08877946bcb7439b8923401990cfbde53aab083e65
[INFO] running `Command { std: "docker" "start" "-a" "36de132a8087cb6a5ed1fa08877946bcb7439b8923401990cfbde53aab083e65", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional_take v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "36de132a8087cb6a5ed1fa08877946bcb7439b8923401990cfbde53aab083e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36de132a8087cb6a5ed1fa08877946bcb7439b8923401990cfbde53aab083e65", kill_on_drop: false }`
[INFO] [stdout] 36de132a8087cb6a5ed1fa08877946bcb7439b8923401990cfbde53aab083e65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a7d67de46a7aeb2c087a793e08705c210487281b11305ae07cf15b8ec0c5506
[INFO] running `Command { std: "docker" "start" "-a" "2a7d67de46a7aeb2c087a793e08705c210487281b11305ae07cf15b8ec0c5506", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional_take v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "2a7d67de46a7aeb2c087a793e08705c210487281b11305ae07cf15b8ec0c5506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a7d67de46a7aeb2c087a793e08705c210487281b11305ae07cf15b8ec0c5506", kill_on_drop: false }`
[INFO] [stdout] 2a7d67de46a7aeb2c087a793e08705c210487281b11305ae07cf15b8ec0c5506
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0cbccdb5b7a687429532a3e112cf0fe3e6c6eee3c2142d0b52f255f16ef951d9
[INFO] running `Command { std: "docker" "start" "-a" "0cbccdb5b7a687429532a3e112cf0fe3e6c6eee3c2142d0b52f255f16ef951d9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optional_take-dbcbf5fbe3c765ea)
[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] [stderr]    Doc-tests optional_take
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - io (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0cbccdb5b7a687429532a3e112cf0fe3e6c6eee3c2142d0b52f255f16ef951d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cbccdb5b7a687429532a3e112cf0fe3e6c6eee3c2142d0b52f255f16ef951d9", kill_on_drop: false }`
[INFO] [stdout] 0cbccdb5b7a687429532a3e112cf0fe3e6c6eee3c2142d0b52f255f16ef951d9