[INFO] cloning repository https://github.com/jutley/rust_chapt2_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jutley/rust_chapt2_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjutley%2Frust_chapt2_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjutley%2Frust_chapt2_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa822f1c16d5251e2dc2236398de175cf11e347d
[INFO] testing jutley/rust_chapt2_practice against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjutley%2Frust_chapt2_practice" "/workspace/builds/worker-89/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-89/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jutley/rust_chapt2_practice on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jutley/rust_chapt2_practice
[INFO] finished tweaking git repo https://github.com/jutley/rust_chapt2_practice
[INFO] tweaked toml for git repo https://github.com/jutley/rust_chapt2_practice written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate git repo https://github.com/jutley/rust_chapt2_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c87c28834d3b17dd2ac36fc77ea3ff12c3d466d38b35266f17d63aa04b4562a
[INFO] running `Command { std: "docker" "start" "-a" "4c87c28834d3b17dd2ac36fc77ea3ff12c3d466d38b35266f17d63aa04b4562a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c87c28834d3b17dd2ac36fc77ea3ff12c3d466d38b35266f17d63aa04b4562a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c87c28834d3b17dd2ac36fc77ea3ff12c3d466d38b35266f17d63aa04b4562a", kill_on_drop: false }`
[INFO] [stdout] 4c87c28834d3b17dd2ac36fc77ea3ff12c3d466d38b35266f17d63aa04b4562a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce133ba4b9d46b6e5aea7743f045bf82101018a89e2ff18202cecc9da0b5c1c
[INFO] running `Command { std: "docker" "start" "-a" "7ce133ba4b9d46b6e5aea7743f045bf82101018a89e2ff18202cecc9da0b5c1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_chapt2_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "7ce133ba4b9d46b6e5aea7743f045bf82101018a89e2ff18202cecc9da0b5c1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce133ba4b9d46b6e5aea7743f045bf82101018a89e2ff18202cecc9da0b5c1c", kill_on_drop: false }`
[INFO] [stdout] 7ce133ba4b9d46b6e5aea7743f045bf82101018a89e2ff18202cecc9da0b5c1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99a747c05431a183a9948a8ef4e0c5433dbfdfb1bf652cb63bea12462a16a6fa
[INFO] running `Command { std: "docker" "start" "-a" "99a747c05431a183a9948a8ef4e0c5433dbfdfb1bf652cb63bea12462a16a6fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_chapt2_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "99a747c05431a183a9948a8ef4e0c5433dbfdfb1bf652cb63bea12462a16a6fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a747c05431a183a9948a8ef4e0c5433dbfdfb1bf652cb63bea12462a16a6fa", kill_on_drop: false }`
[INFO] [stdout] 99a747c05431a183a9948a8ef4e0c5433dbfdfb1bf652cb63bea12462a16a6fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0dec11f99b0f86ed991234e70e22df0ba684302308f5528aa22711715c16d07a
[INFO] running `Command { std: "docker" "start" "-a" "0dec11f99b0f86ed991234e70e22df0ba684302308f5528aa22711715c16d07a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_chapt2_practice-15038835872c8cb8)
[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" "0dec11f99b0f86ed991234e70e22df0ba684302308f5528aa22711715c16d07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dec11f99b0f86ed991234e70e22df0ba684302308f5528aa22711715c16d07a", kill_on_drop: false }`
[INFO] [stdout] 0dec11f99b0f86ed991234e70e22df0ba684302308f5528aa22711715c16d07a