[INFO] cloning repository https://github.com/SummerFans/rust-course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SummerFans/rust-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummerFans%2Frust-course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummerFans%2Frust-course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7edb893be564de72c08f4d7a5f460311a2acd789
[INFO] testing SummerFans/rust-course against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummerFans%2Frust-course" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SummerFans/rust-course on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SummerFans/rust-course
[INFO] finished tweaking git repo https://github.com/SummerFans/rust-course
[INFO] tweaked toml for git repo https://github.com/SummerFans/rust-course written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/SummerFans/rust-course already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a06835f7b58274e509147c0614b868036233c587edd943975d66a30e2426095c
[INFO] running `Command { std: "docker" "start" "-a" "a06835f7b58274e509147c0614b868036233c587edd943975d66a30e2426095c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a06835f7b58274e509147c0614b868036233c587edd943975d66a30e2426095c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06835f7b58274e509147c0614b868036233c587edd943975d66a30e2426095c", kill_on_drop: false }`
[INFO] [stdout] a06835f7b58274e509147c0614b868036233c587edd943975d66a30e2426095c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25e622a3bbbbc724cf0d269da1bace50fe87de4ef7a7c0faa2856ad8837712c4
[INFO] running `Command { std: "docker" "start" "-a" "25e622a3bbbbc724cf0d269da1bace50fe87de4ef7a7c0faa2856ad8837712c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-course v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "25e622a3bbbbc724cf0d269da1bace50fe87de4ef7a7c0faa2856ad8837712c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e622a3bbbbc724cf0d269da1bace50fe87de4ef7a7c0faa2856ad8837712c4", kill_on_drop: false }`
[INFO] [stdout] 25e622a3bbbbc724cf0d269da1bace50fe87de4ef7a7c0faa2856ad8837712c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a5d3594bb4189eb4dec735d36fe9693a852ad39205c9bb653eb59ffb096550b
[INFO] running `Command { std: "docker" "start" "-a" "1a5d3594bb4189eb4dec735d36fe9693a852ad39205c9bb653eb59ffb096550b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-course v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "1a5d3594bb4189eb4dec735d36fe9693a852ad39205c9bb653eb59ffb096550b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5d3594bb4189eb4dec735d36fe9693a852ad39205c9bb653eb59ffb096550b", kill_on_drop: false }`
[INFO] [stdout] 1a5d3594bb4189eb4dec735d36fe9693a852ad39205c9bb653eb59ffb096550b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31924d814d92a18601e267e69881cfe9f6e33dfc7ffa07f13b5223445616a22e
[INFO] running `Command { std: "docker" "start" "-a" "31924d814d92a18601e267e69881cfe9f6e33dfc7ffa07f13b5223445616a22e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.96s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_course-3014b6afecdece54)
[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" "31924d814d92a18601e267e69881cfe9f6e33dfc7ffa07f13b5223445616a22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31924d814d92a18601e267e69881cfe9f6e33dfc7ffa07f13b5223445616a22e", kill_on_drop: false }`
[INFO] [stdout] 31924d814d92a18601e267e69881cfe9f6e33dfc7ffa07f13b5223445616a22e