[INFO] cloning repository https://github.com/sirluky/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sirluky/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirluky%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirluky%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d34ab932901d10ff4eacad52e33dadf74c32428
[INFO] testing sirluky/learning-rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirluky%2Flearning-rust" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sirluky/learning-rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sirluky/learning-rust
[INFO] finished tweaking git repo https://github.com/sirluky/learning-rust
[INFO] tweaked toml for git repo https://github.com/sirluky/learning-rust written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/sirluky/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 383b5d3ab7b6a4539fb852f4a847e27a0a3a68355bca24d818407c65672d57af
[INFO] running `Command { std: "docker" "start" "-a" "383b5d3ab7b6a4539fb852f4a847e27a0a3a68355bca24d818407c65672d57af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "383b5d3ab7b6a4539fb852f4a847e27a0a3a68355bca24d818407c65672d57af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383b5d3ab7b6a4539fb852f4a847e27a0a3a68355bca24d818407c65672d57af", kill_on_drop: false }`
[INFO] [stdout] 383b5d3ab7b6a4539fb852f4a847e27a0a3a68355bca24d818407c65672d57af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40375ac8e75169a0efc3b071eb0b317dc34e7c068094a9bed28c27daaf978767
[INFO] running `Command { std: "docker" "start" "-a" "40375ac8e75169a0efc3b071eb0b317dc34e7c068094a9bed28c27daaf978767", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 34s
[INFO] running `Command { std: "docker" "inspect" "40375ac8e75169a0efc3b071eb0b317dc34e7c068094a9bed28c27daaf978767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40375ac8e75169a0efc3b071eb0b317dc34e7c068094a9bed28c27daaf978767", kill_on_drop: false }`
[INFO] [stdout] 40375ac8e75169a0efc3b071eb0b317dc34e7c068094a9bed28c27daaf978767
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6a32ffac4df7aeb34d2b4ba900b9a8de91a7aeb07b7b536b8b47a09cb4fbc0d
[INFO] running `Command { std: "docker" "start" "-a" "a6a32ffac4df7aeb34d2b4ba900b9a8de91a7aeb07b7b536b8b47a09cb4fbc0d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "a6a32ffac4df7aeb34d2b4ba900b9a8de91a7aeb07b7b536b8b47a09cb4fbc0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a32ffac4df7aeb34d2b4ba900b9a8de91a7aeb07b7b536b8b47a09cb4fbc0d", kill_on_drop: false }`
[INFO] [stdout] a6a32ffac4df7aeb34d2b4ba900b9a8de91a7aeb07b7b536b8b47a09cb4fbc0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb43b838d1d1b39688c92ac2b24562dd78aafa2bbf816dbc7fe22e8a36c36d2b
[INFO] running `Command { std: "docker" "start" "-a" "cb43b838d1d1b39688c92ac2b24562dd78aafa2bbf816dbc7fe22e8a36c36d2b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learning_rust-2ae0c7e3721b852b)
[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" "cb43b838d1d1b39688c92ac2b24562dd78aafa2bbf816dbc7fe22e8a36c36d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb43b838d1d1b39688c92ac2b24562dd78aafa2bbf816dbc7fe22e8a36c36d2b", kill_on_drop: false }`
[INFO] [stdout] cb43b838d1d1b39688c92ac2b24562dd78aafa2bbf816dbc7fe22e8a36c36d2b