[INFO] fetching crate string_concat 0.0.1...
[INFO] testing string_concat-0.0.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate string_concat 0.0.1 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate string_concat 0.0.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string_concat 0.0.1
[INFO] finished tweaking crates.io crate string_concat 0.0.1
[INFO] tweaked toml for crates.io crate string_concat 0.0.1 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7a6fad6a49ef5707ce60cc11f849ef3e9f59f8cd302fcd1f45ea40b719135c8
[INFO] running `Command { std: "docker" "start" "-a" "f7a6fad6a49ef5707ce60cc11f849ef3e9f59f8cd302fcd1f45ea40b719135c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7a6fad6a49ef5707ce60cc11f849ef3e9f59f8cd302fcd1f45ea40b719135c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a6fad6a49ef5707ce60cc11f849ef3e9f59f8cd302fcd1f45ea40b719135c8", kill_on_drop: false }`
[INFO] [stdout] f7a6fad6a49ef5707ce60cc11f849ef3e9f59f8cd302fcd1f45ea40b719135c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c77ec3c9759fc8ec73daa6a6eecf0e0e077d0f8b821b711c5a17ebebee6b5ab
[INFO] running `Command { std: "docker" "start" "-a" "6c77ec3c9759fc8ec73daa6a6eecf0e0e077d0f8b821b711c5a17ebebee6b5ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling string_concat v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "6c77ec3c9759fc8ec73daa6a6eecf0e0e077d0f8b821b711c5a17ebebee6b5ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c77ec3c9759fc8ec73daa6a6eecf0e0e077d0f8b821b711c5a17ebebee6b5ab", kill_on_drop: false }`
[INFO] [stdout] 6c77ec3c9759fc8ec73daa6a6eecf0e0e077d0f8b821b711c5a17ebebee6b5ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f858a3dbfb52d5f2a4f57fd75f41ba8f07a1bf43d88fd740658d13b1036a6143
[INFO] running `Command { std: "docker" "start" "-a" "f858a3dbfb52d5f2a4f57fd75f41ba8f07a1bf43d88fd740658d13b1036a6143", kill_on_drop: false }`
[INFO] [stderr]    Compiling string_concat v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "f858a3dbfb52d5f2a4f57fd75f41ba8f07a1bf43d88fd740658d13b1036a6143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f858a3dbfb52d5f2a4f57fd75f41ba8f07a1bf43d88fd740658d13b1036a6143", kill_on_drop: false }`
[INFO] [stdout] f858a3dbfb52d5f2a4f57fd75f41ba8f07a1bf43d88fd740658d13b1036a6143
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ef3192fd4ff28513c01438c072d55279881c0ee378b776f836d4ea438107ffc
[INFO] running `Command { std: "docker" "start" "-a" "5ef3192fd4ff28513c01438c072d55279881c0ee378b776f836d4ea438107ffc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/string_concat-bd9e6ea77961324e)
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::it_works_with_str ... ok
[INFO] [stdout] test tests::it_works_with_stringss ... ok
[INFO] [stderr]    Doc-tests string_concat
[INFO] [stdout] test tests::it_works_more_complicated ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "5ef3192fd4ff28513c01438c072d55279881c0ee378b776f836d4ea438107ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ef3192fd4ff28513c01438c072d55279881c0ee378b776f836d4ea438107ffc", kill_on_drop: false }`
[INFO] [stdout] 5ef3192fd4ff28513c01438c072d55279881c0ee378b776f836d4ea438107ffc