[INFO] cloning repository https://github.com/osheng/rust_book_ex_8_3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/osheng/rust_book_ex_8_3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosheng%2Frust_book_ex_8_3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosheng%2Frust_book_ex_8_3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26428fa99b1f8c0429a7a2e859b3a238cd53bf4d
[INFO] testing osheng/rust_book_ex_8_3 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosheng%2Frust_book_ex_8_3" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/osheng/rust_book_ex_8_3 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 git repo https://github.com/osheng/rust_book_ex_8_3
[INFO] finished tweaking git repo https://github.com/osheng/rust_book_ex_8_3
[INFO] tweaked toml for git repo https://github.com/osheng/rust_book_ex_8_3 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/osheng/rust_book_ex_8_3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 9757138e1d09a51a75b8b137810832a8c703350c08f2ba933cadaf4a99d8c4dc
[INFO] running `Command { std: "docker" "start" "-a" "9757138e1d09a51a75b8b137810832a8c703350c08f2ba933cadaf4a99d8c4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9757138e1d09a51a75b8b137810832a8c703350c08f2ba933cadaf4a99d8c4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9757138e1d09a51a75b8b137810832a8c703350c08f2ba933cadaf4a99d8c4dc", kill_on_drop: false }`
[INFO] [stdout] 9757138e1d09a51a75b8b137810832a8c703350c08f2ba933cadaf4a99d8c4dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] aca9c99993dbdb248c3ebeb2ac6ba51facd7d164b755d02c86798f4a8e90236c
[INFO] running `Command { std: "docker" "start" "-a" "aca9c99993dbdb248c3ebeb2ac6ba51facd7d164b755d02c86798f4a8e90236c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_ex_8_3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "aca9c99993dbdb248c3ebeb2ac6ba51facd7d164b755d02c86798f4a8e90236c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aca9c99993dbdb248c3ebeb2ac6ba51facd7d164b755d02c86798f4a8e90236c", kill_on_drop: false }`
[INFO] [stdout] aca9c99993dbdb248c3ebeb2ac6ba51facd7d164b755d02c86798f4a8e90236c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 2c89ab1bdfc9a442617ff2df2fd78f55d4de09095fb66ba03f288e3cd81fd0c9
[INFO] running `Command { std: "docker" "start" "-a" "2c89ab1bdfc9a442617ff2df2fd78f55d4de09095fb66ba03f288e3cd81fd0c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_ex_8_3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "2c89ab1bdfc9a442617ff2df2fd78f55d4de09095fb66ba03f288e3cd81fd0c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c89ab1bdfc9a442617ff2df2fd78f55d4de09095fb66ba03f288e3cd81fd0c9", kill_on_drop: false }`
[INFO] [stdout] 2c89ab1bdfc9a442617ff2df2fd78f55d4de09095fb66ba03f288e3cd81fd0c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 8b78b02f56a8688a0374eab97cb07f74e35a3fb65c92354eb8dd60a201c06fdc
[INFO] running `Command { std: "docker" "start" "-a" "8b78b02f56a8688a0374eab97cb07f74e35a3fb65c92354eb8dd60a201c06fdc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 37.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_book_ex_8_3-103633e1f4d03778)
[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" "8b78b02f56a8688a0374eab97cb07f74e35a3fb65c92354eb8dd60a201c06fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b78b02f56a8688a0374eab97cb07f74e35a3fb65c92354eb8dd60a201c06fdc", kill_on_drop: false }`
[INFO] [stdout] 8b78b02f56a8688a0374eab97cb07f74e35a3fb65c92354eb8dd60a201c06fdc