[INFO] cloning repository https://github.com/saadjhk/beginning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saadjhk/beginning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaadjhk%2Fbeginning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaadjhk%2Fbeginning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b8196ab41e8c516727c3891ebbc5e17f43c558f
[INFO] testing saadjhk/beginning-rust against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaadjhk%2Fbeginning-rust" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saadjhk/beginning-rust on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saadjhk/beginning-rust
[INFO] finished tweaking git repo https://github.com/saadjhk/beginning-rust
[INFO] tweaked toml for git repo https://github.com/saadjhk/beginning-rust written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/saadjhk/beginning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 578d1d0848c871c4a3c84ed01bfc95d83d76a591b7ba158f5666e46d1e9e69cd
[INFO] running `Command { std: "docker" "start" "-a" "578d1d0848c871c4a3c84ed01bfc95d83d76a591b7ba158f5666e46d1e9e69cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "578d1d0848c871c4a3c84ed01bfc95d83d76a591b7ba158f5666e46d1e9e69cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "578d1d0848c871c4a3c84ed01bfc95d83d76a591b7ba158f5666e46d1e9e69cd", kill_on_drop: false }`
[INFO] [stdout] 578d1d0848c871c4a3c84ed01bfc95d83d76a591b7ba158f5666e46d1e9e69cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aad170760bba9d6a688ba1bd5756d7676dbe5deecc051b186c64a89a0d4fd19e
[INFO] running `Command { std: "docker" "start" "-a" "aad170760bba9d6a688ba1bd5756d7676dbe5deecc051b186c64a89a0d4fd19e", kill_on_drop: false }`
[INFO] [stderr]    Compiling beginning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `first_word_str_slice`
[INFO] [stdout]   --> src/ch02/slice.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn first_word_str_slice(str_slice: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "aad170760bba9d6a688ba1bd5756d7676dbe5deecc051b186c64a89a0d4fd19e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad170760bba9d6a688ba1bd5756d7676dbe5deecc051b186c64a89a0d4fd19e", kill_on_drop: false }`
[INFO] [stdout] aad170760bba9d6a688ba1bd5756d7676dbe5deecc051b186c64a89a0d4fd19e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01770fed5f3c6f7f37a1a85d7283917730582ed3f22340cd1ca53972f4ac6b75
[INFO] running `Command { std: "docker" "start" "-a" "01770fed5f3c6f7f37a1a85d7283917730582ed3f22340cd1ca53972f4ac6b75", kill_on_drop: false }`
[INFO] [stderr]    Compiling beginning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `first_word_str_slice`
[INFO] [stdout]   --> src/ch02/slice.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn first_word_str_slice(str_slice: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "01770fed5f3c6f7f37a1a85d7283917730582ed3f22340cd1ca53972f4ac6b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01770fed5f3c6f7f37a1a85d7283917730582ed3f22340cd1ca53972f4ac6b75", kill_on_drop: false }`
[INFO] [stdout] 01770fed5f3c6f7f37a1a85d7283917730582ed3f22340cd1ca53972f4ac6b75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c97173c3feba729b8671a2b85b20c790b8fa174bd2690f29ed13f98779a99d8
[INFO] running `Command { std: "docker" "start" "-a" "6c97173c3feba729b8671a2b85b20c790b8fa174bd2690f29ed13f98779a99d8", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `first_word_str_slice`
[INFO] [stderr]   --> src/ch02/slice.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn first_word_str_slice(str_slice: &str) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `beginning-rust` (bin "beginning-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/beginning_rust-7954e40dbbeda7e9)
[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" "6c97173c3feba729b8671a2b85b20c790b8fa174bd2690f29ed13f98779a99d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c97173c3feba729b8671a2b85b20c790b8fa174bd2690f29ed13f98779a99d8", kill_on_drop: false }`
[INFO] [stdout] 6c97173c3feba729b8671a2b85b20c790b8fa174bd2690f29ed13f98779a99d8