[INFO] cloning repository https://github.com/Eson-Jia/callback
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eson-Jia/callback" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Fcallback", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Fcallback'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12be189d155c3954175f30e95f0e83fba84f3ee3
[INFO] testing Eson-Jia/callback against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Fcallback" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eson-Jia/callback on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Eson-Jia/callback
[INFO] finished tweaking git repo https://github.com/Eson-Jia/callback
[INFO] tweaked toml for git repo https://github.com/Eson-Jia/callback written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Eson-Jia/callback already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9255e9d2df5d1f7e07feaf8c3b0e9e2f8a3ae266d618b35d90282df8107ca630
[INFO] running `Command { std: "docker" "start" "-a" "9255e9d2df5d1f7e07feaf8c3b0e9e2f8a3ae266d618b35d90282df8107ca630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9255e9d2df5d1f7e07feaf8c3b0e9e2f8a3ae266d618b35d90282df8107ca630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9255e9d2df5d1f7e07feaf8c3b0e9e2f8a3ae266d618b35d90282df8107ca630", kill_on_drop: false }`
[INFO] [stdout] 9255e9d2df5d1f7e07feaf8c3b0e9e2f8a3ae266d618b35d90282df8107ca630
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c93448efb563b623072870ea8800c7b7c71058de5b5d7a0bfffeea54b0ad5df6
[INFO] running `Command { std: "docker" "start" "-a" "c93448efb563b623072870ea8800c7b7c71058de5b5d7a0bfffeea54b0ad5df6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling callback v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "c93448efb563b623072870ea8800c7b7c71058de5b5d7a0bfffeea54b0ad5df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c93448efb563b623072870ea8800c7b7c71058de5b5d7a0bfffeea54b0ad5df6", kill_on_drop: false }`
[INFO] [stdout] c93448efb563b623072870ea8800c7b7c71058de5b5d7a0bfffeea54b0ad5df6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c090063185a242b621d90e63f9252649a604e8e4572056f58d8909214438aa2
[INFO] running `Command { std: "docker" "start" "-a" "7c090063185a242b621d90e63f9252649a604e8e4572056f58d8909214438aa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling callback v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "7c090063185a242b621d90e63f9252649a604e8e4572056f58d8909214438aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c090063185a242b621d90e63f9252649a604e8e4572056f58d8909214438aa2", kill_on_drop: false }`
[INFO] [stdout] 7c090063185a242b621d90e63f9252649a604e8e4572056f58d8909214438aa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7cb1bae38cd08cdd7ef9a0e8bda96e790283d16206d18fc35ed9909c25fc91e7
[INFO] running `Command { std: "docker" "start" "-a" "7cb1bae38cd08cdd7ef9a0e8bda96e790283d16206d18fc35ed9909c25fc91e7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/callback-6fd43220e503c431)
[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" "7cb1bae38cd08cdd7ef9a0e8bda96e790283d16206d18fc35ed9909c25fc91e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb1bae38cd08cdd7ef9a0e8bda96e790283d16206d18fc35ed9909c25fc91e7", kill_on_drop: false }`
[INFO] [stdout] 7cb1bae38cd08cdd7ef9a0e8bda96e790283d16206d18fc35ed9909c25fc91e7