[INFO] cloning repository https://github.com/ngtk/practice-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ngtk/practice-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngtk%2Fpractice-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngtk%2Fpractice-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 790e7cfca2aae1f3a997664ce9f9fa2efb12d95d
[INFO] testing ngtk/practice-rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngtk%2Fpractice-rust" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ngtk/practice-rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ngtk/practice-rust
[INFO] finished tweaking git repo https://github.com/ngtk/practice-rust
[INFO] tweaked toml for git repo https://github.com/ngtk/practice-rust written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate git repo https://github.com/ngtk/practice-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae8d66737aa9c25bbcacd3e23b8754afde6cdee0ef729edc05993e7d3a075a2d
[INFO] running `Command { std: "docker" "start" "-a" "ae8d66737aa9c25bbcacd3e23b8754afde6cdee0ef729edc05993e7d3a075a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae8d66737aa9c25bbcacd3e23b8754afde6cdee0ef729edc05993e7d3a075a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8d66737aa9c25bbcacd3e23b8754afde6cdee0ef729edc05993e7d3a075a2d", kill_on_drop: false }`
[INFO] [stdout] ae8d66737aa9c25bbcacd3e23b8754afde6cdee0ef729edc05993e7d3a075a2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b44591df9b714eeaeb0bccb6892255d3200e63ef9df86c34dd52343b7a58265e
[INFO] running `Command { std: "docker" "start" "-a" "b44591df9b714eeaeb0bccb6892255d3200e63ef9df86c34dd52343b7a58265e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling practice-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "b44591df9b714eeaeb0bccb6892255d3200e63ef9df86c34dd52343b7a58265e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44591df9b714eeaeb0bccb6892255d3200e63ef9df86c34dd52343b7a58265e", kill_on_drop: false }`
[INFO] [stdout] b44591df9b714eeaeb0bccb6892255d3200e63ef9df86c34dd52343b7a58265e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abd151ff5511f3f0225d90449d61fa7db4fc94cd8e8667dd80a921769d341d42
[INFO] running `Command { std: "docker" "start" "-a" "abd151ff5511f3f0225d90449d61fa7db4fc94cd8e8667dd80a921769d341d42", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling practice-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/practice_rust-356d4291d6806cb1)
[INFO] running `Command { std: "docker" "inspect" "abd151ff5511f3f0225d90449d61fa7db4fc94cd8e8667dd80a921769d341d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd151ff5511f3f0225d90449d61fa7db4fc94cd8e8667dd80a921769d341d42", kill_on_drop: false }`
[INFO] [stdout] abd151ff5511f3f0225d90449d61fa7db4fc94cd8e8667dd80a921769d341d42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0ae5a283bfc06997608c66e3fca969c8646d12107d6ab33f2b7e0f9ba882dba
[INFO] running `Command { std: "docker" "start" "-a" "e0ae5a283bfc06997608c66e3fca969c8646d12107d6ab33f2b7e0f9ba882dba", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/practice_rust-356d4291d6806cb1)
[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" "e0ae5a283bfc06997608c66e3fca969c8646d12107d6ab33f2b7e0f9ba882dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ae5a283bfc06997608c66e3fca969c8646d12107d6ab33f2b7e0f9ba882dba", kill_on_drop: false }`
[INFO] [stdout] e0ae5a283bfc06997608c66e3fca969c8646d12107d6ab33f2b7e0f9ba882dba