[INFO] fetching crate returns 0.1.0...
[INFO] testing returns-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate returns 0.1.0 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate returns 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate returns 0.1.0
[INFO] finished tweaking crates.io crate returns 0.1.0
[INFO] tweaked toml for crates.io crate returns 0.1.0 written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate crates.io crate returns 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9731ea848593e2c7ae9a9082e924a1428fdacc7e49e6056432e26ba25c5ae3c6
[INFO] running `Command { std: "docker" "start" "-a" "9731ea848593e2c7ae9a9082e924a1428fdacc7e49e6056432e26ba25c5ae3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9731ea848593e2c7ae9a9082e924a1428fdacc7e49e6056432e26ba25c5ae3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9731ea848593e2c7ae9a9082e924a1428fdacc7e49e6056432e26ba25c5ae3c6", kill_on_drop: false }`
[INFO] [stdout] 9731ea848593e2c7ae9a9082e924a1428fdacc7e49e6056432e26ba25c5ae3c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac06977213c9c39ab0b4e4077971f82dad0885c869ab7829cc6f012e22afa4aa
[INFO] running `Command { std: "docker" "start" "-a" "ac06977213c9c39ab0b4e4077971f82dad0885c869ab7829cc6f012e22afa4aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling returns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "ac06977213c9c39ab0b4e4077971f82dad0885c869ab7829cc6f012e22afa4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac06977213c9c39ab0b4e4077971f82dad0885c869ab7829cc6f012e22afa4aa", kill_on_drop: false }`
[INFO] [stdout] ac06977213c9c39ab0b4e4077971f82dad0885c869ab7829cc6f012e22afa4aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33f162f6c1069d2560555e4a1d36e9bbcdfd022cfc67670846d615bc43a181b4
[INFO] running `Command { std: "docker" "start" "-a" "33f162f6c1069d2560555e4a1d36e9bbcdfd022cfc67670846d615bc43a181b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling returns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "33f162f6c1069d2560555e4a1d36e9bbcdfd022cfc67670846d615bc43a181b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f162f6c1069d2560555e4a1d36e9bbcdfd022cfc67670846d615bc43a181b4", kill_on_drop: false }`
[INFO] [stdout] 33f162f6c1069d2560555e4a1d36e9bbcdfd022cfc67670846d615bc43a181b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b849155db6a19f510a80214940172563944002e93ed53356795154fe06d1cce
[INFO] running `Command { std: "docker" "start" "-a" "6b849155db6a19f510a80214940172563944002e93ed53356795154fe06d1cce", 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/returns-f455c8ea51c63fc3)
[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" "6b849155db6a19f510a80214940172563944002e93ed53356795154fe06d1cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b849155db6a19f510a80214940172563944002e93ed53356795154fe06d1cce", kill_on_drop: false }`
[INFO] [stdout] 6b849155db6a19f510a80214940172563944002e93ed53356795154fe06d1cce