[INFO] fetching crate backbone 0.1.0...
[INFO] testing backbone-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate backbone 0.1.0 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate backbone 0.1.0 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 crates.io crate backbone 0.1.0
[INFO] finished tweaking crates.io crate backbone 0.1.0
[INFO] tweaked toml for crates.io crate backbone 0.1.0 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate crates.io crate backbone 0.1.0 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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] f502ce2f38a35d8be494533d4d2b3dea60d5b0ea3237d7600a7a77a48896dc84
[INFO] running `Command { std: "docker" "start" "-a" "f502ce2f38a35d8be494533d4d2b3dea60d5b0ea3237d7600a7a77a48896dc84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f502ce2f38a35d8be494533d4d2b3dea60d5b0ea3237d7600a7a77a48896dc84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f502ce2f38a35d8be494533d4d2b3dea60d5b0ea3237d7600a7a77a48896dc84", kill_on_drop: false }`
[INFO] [stdout] f502ce2f38a35d8be494533d4d2b3dea60d5b0ea3237d7600a7a77a48896dc84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] fc751a7d36e65c0072c5e0ab185d55d4aedd39ec5cc07e3f440aaa370c52b882
[INFO] running `Command { std: "docker" "start" "-a" "fc751a7d36e65c0072c5e0ab185d55d4aedd39ec5cc07e3f440aaa370c52b882", kill_on_drop: false }`
[INFO] [stderr]    Compiling backbone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "fc751a7d36e65c0072c5e0ab185d55d4aedd39ec5cc07e3f440aaa370c52b882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc751a7d36e65c0072c5e0ab185d55d4aedd39ec5cc07e3f440aaa370c52b882", kill_on_drop: false }`
[INFO] [stdout] fc751a7d36e65c0072c5e0ab185d55d4aedd39ec5cc07e3f440aaa370c52b882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 3f6f3aa9182d00eb3d5cc8782e1fde22228ef238d4b5f2631fd1b4c7e6ec014d
[INFO] running `Command { std: "docker" "start" "-a" "3f6f3aa9182d00eb3d5cc8782e1fde22228ef238d4b5f2631fd1b4c7e6ec014d", kill_on_drop: false }`
[INFO] [stderr]    Compiling backbone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "3f6f3aa9182d00eb3d5cc8782e1fde22228ef238d4b5f2631fd1b4c7e6ec014d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f6f3aa9182d00eb3d5cc8782e1fde22228ef238d4b5f2631fd1b4c7e6ec014d", kill_on_drop: false }`
[INFO] [stdout] 3f6f3aa9182d00eb3d5cc8782e1fde22228ef238d4b5f2631fd1b4c7e6ec014d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 1a9da1d7c9452026bacd0a087469e559dfb98fd48654f3870975595bc7158c1b
[INFO] running `Command { std: "docker" "start" "-a" "1a9da1d7c9452026bacd0a087469e559dfb98fd48654f3870975595bc7158c1b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/backbone-5221a3a1e21c3592)
[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" "1a9da1d7c9452026bacd0a087469e559dfb98fd48654f3870975595bc7158c1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9da1d7c9452026bacd0a087469e559dfb98fd48654f3870975595bc7158c1b", kill_on_drop: false }`
[INFO] [stdout] 1a9da1d7c9452026bacd0a087469e559dfb98fd48654f3870975595bc7158c1b