[INFO] cloning repository https://github.com/antonmisa/rust_combinators_vs_return
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antonmisa/rust_combinators_vs_return" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fb7b6d79f29f6912ee698a06ac2aea407b0edd9
[INFO] testing antonmisa/rust_combinators_vs_return against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_combinators_vs_return" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antonmisa/rust_combinators_vs_return on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/antonmisa/rust_combinators_vs_return
[INFO] finished tweaking git repo https://github.com/antonmisa/rust_combinators_vs_return
[INFO] tweaked toml for git repo https://github.com/antonmisa/rust_combinators_vs_return written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/antonmisa/rust_combinators_vs_return already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a815f9e38d90da8b6f5bee60b72c25d32aeb42d5f0f38ea5085597b876dd502
[INFO] running `Command { std: "docker" "start" "-a" "4a815f9e38d90da8b6f5bee60b72c25d32aeb42d5f0f38ea5085597b876dd502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a815f9e38d90da8b6f5bee60b72c25d32aeb42d5f0f38ea5085597b876dd502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a815f9e38d90da8b6f5bee60b72c25d32aeb42d5f0f38ea5085597b876dd502", kill_on_drop: false }`
[INFO] [stdout] 4a815f9e38d90da8b6f5bee60b72c25d32aeb42d5f0f38ea5085597b876dd502
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01eaa8a4c5a9f7fcc1a975f250634aa546e66153398396ba93e9b7c49b96655b
[INFO] running `Command { std: "docker" "start" "-a" "01eaa8a4c5a9f7fcc1a975f250634aa546e66153398396ba93e9b7c49b96655b", kill_on_drop: false }`
[INFO] [stderr]    Compiling combination v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "01eaa8a4c5a9f7fcc1a975f250634aa546e66153398396ba93e9b7c49b96655b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01eaa8a4c5a9f7fcc1a975f250634aa546e66153398396ba93e9b7c49b96655b", kill_on_drop: false }`
[INFO] [stdout] 01eaa8a4c5a9f7fcc1a975f250634aa546e66153398396ba93e9b7c49b96655b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13564014ce3dc17d242a3b3e41f2fca508cc0a898d5012598baee11b7c446f0b
[INFO] running `Command { std: "docker" "start" "-a" "13564014ce3dc17d242a3b3e41f2fca508cc0a898d5012598baee11b7c446f0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling combination v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "13564014ce3dc17d242a3b3e41f2fca508cc0a898d5012598baee11b7c446f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13564014ce3dc17d242a3b3e41f2fca508cc0a898d5012598baee11b7c446f0b", kill_on_drop: false }`
[INFO] [stdout] 13564014ce3dc17d242a3b3e41f2fca508cc0a898d5012598baee11b7c446f0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fec6680580b640840016e7f859d58a5b1e12279d2056a30a148edd29b7ddb07f
[INFO] running `Command { std: "docker" "start" "-a" "fec6680580b640840016e7f859d58a5b1e12279d2056a30a148edd29b7ddb07f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/combination-332c31069a68ff08)
[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" "fec6680580b640840016e7f859d58a5b1e12279d2056a30a148edd29b7ddb07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fec6680580b640840016e7f859d58a5b1e12279d2056a30a148edd29b7ddb07f", kill_on_drop: false }`
[INFO] [stdout] fec6680580b640840016e7f859d58a5b1e12279d2056a30a148edd29b7ddb07f