[INFO] cloning repository https://github.com/BingKui/Rust-Learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BingKui/Rust-Learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBingKui%2FRust-Learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBingKui%2FRust-Learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f5d2d69e7f1b7cacecb9d518edbba92b705a5b4
[INFO] testing BingKui/Rust-Learn against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBingKui%2FRust-Learn" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BingKui/Rust-Learn on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BingKui/Rust-Learn
[INFO] finished tweaking git repo https://github.com/BingKui/Rust-Learn
[INFO] tweaked toml for git repo https://github.com/BingKui/Rust-Learn written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/BingKui/Rust-Learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 798213eb4e7cff901395c41241988f5714eb64a31c53e41c58524dc7be22a19f
[INFO] running `Command { std: "docker" "start" "-a" "798213eb4e7cff901395c41241988f5714eb64a31c53e41c58524dc7be22a19f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "798213eb4e7cff901395c41241988f5714eb64a31c53e41c58524dc7be22a19f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798213eb4e7cff901395c41241988f5714eb64a31c53e41c58524dc7be22a19f", kill_on_drop: false }`
[INFO] [stdout] 798213eb4e7cff901395c41241988f5714eb64a31c53e41c58524dc7be22a19f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f990a1e1047498115b58e5011827e70fecfa6cbc9591b64a3e03c3325eff0002
[INFO] running `Command { std: "docker" "start" "-a" "f990a1e1047498115b58e5011827e70fecfa6cbc9591b64a3e03c3325eff0002", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learn v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "f990a1e1047498115b58e5011827e70fecfa6cbc9591b64a3e03c3325eff0002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f990a1e1047498115b58e5011827e70fecfa6cbc9591b64a3e03c3325eff0002", kill_on_drop: false }`
[INFO] [stdout] f990a1e1047498115b58e5011827e70fecfa6cbc9591b64a3e03c3325eff0002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85076619a8fee4ffa4230bbb9b9db491cc49be696622e5cf71d4697b1898c23e
[INFO] running `Command { std: "docker" "start" "-a" "85076619a8fee4ffa4230bbb9b9db491cc49be696622e5cf71d4697b1898c23e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learn v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "85076619a8fee4ffa4230bbb9b9db491cc49be696622e5cf71d4697b1898c23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85076619a8fee4ffa4230bbb9b9db491cc49be696622e5cf71d4697b1898c23e", kill_on_drop: false }`
[INFO] [stdout] 85076619a8fee4ffa4230bbb9b9db491cc49be696622e5cf71d4697b1898c23e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 65fc573921b8134b5da60a2cfc15ceb6e610fc3333ad540caa60e0dbdf0f2279
[INFO] running `Command { std: "docker" "start" "-a" "65fc573921b8134b5da60a2cfc15ceb6e610fc3333ad540caa60e0dbdf0f2279", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_learn-14149f7e60a8e7bc)
[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" "65fc573921b8134b5da60a2cfc15ceb6e610fc3333ad540caa60e0dbdf0f2279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65fc573921b8134b5da60a2cfc15ceb6e610fc3333ad540caa60e0dbdf0f2279", kill_on_drop: false }`
[INFO] [stdout] 65fc573921b8134b5da60a2cfc15ceb6e610fc3333ad540caa60e0dbdf0f2279