[INFO] updating cached repository https://github.com/TomLingham/zaity
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e6d76266e1a25f4f077ea6c58b227d0732ac0b5
[INFO] testing TomLingham/zaity against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomLingham%2Fzaity" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomLingham/zaity on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/TomLingham/zaity
[INFO] finished tweaking git repo https://github.com/TomLingham/zaity
[INFO] tweaked toml for git repo https://github.com/TomLingham/zaity written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/TomLingham/zaity already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] dbf8ee4ad8dba2eb2585ae8415a08f8646621eec95ffe6f6a6a68a1d046806ed
[INFO] running `"docker" "start" "-a" "dbf8ee4ad8dba2eb2585ae8415a08f8646621eec95ffe6f6a6a68a1d046806ed"`
[INFO] [stderr]    Compiling serde v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling zaity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cpu_json`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let cpu_json: Value = serde_json::from_str(&json_str).unwrap();
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_cpu_json`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     file.read_to_end(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.55s
[INFO] running `"docker" "inspect" "dbf8ee4ad8dba2eb2585ae8415a08f8646621eec95ffe6f6a6a68a1d046806ed"`
[INFO] running `"docker" "rm" "-f" "dbf8ee4ad8dba2eb2585ae8415a08f8646621eec95ffe6f6a6a68a1d046806ed"`
[INFO] [stdout] dbf8ee4ad8dba2eb2585ae8415a08f8646621eec95ffe6f6a6a68a1d046806ed
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 254eee49eefe345c8741e0f340bddda0e323b947cc697895022338d52760c924
[INFO] running `"docker" "start" "-a" "254eee49eefe345c8741e0f340bddda0e323b947cc697895022338d52760c924"`
[INFO] [stderr]    Compiling zaity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cpu_json`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let cpu_json: Value = serde_json::from_str(&json_str).unwrap();
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_cpu_json`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     file.read_to_end(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "254eee49eefe345c8741e0f340bddda0e323b947cc697895022338d52760c924"`
[INFO] running `"docker" "rm" "-f" "254eee49eefe345c8741e0f340bddda0e323b947cc697895022338d52760c924"`
[INFO] [stdout] 254eee49eefe345c8741e0f340bddda0e323b947cc697895022338d52760c924
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] e45cb4412c05be126894c1f6844a233c3e076bb85200f700ec7969f7f259c6f7
[INFO] running `"docker" "start" "-a" "e45cb4412c05be126894c1f6844a233c3e076bb85200f700ec7969f7f259c6f7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zaity-3faf0c465aedb4e7
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e45cb4412c05be126894c1f6844a233c3e076bb85200f700ec7969f7f259c6f7"`
[INFO] running `"docker" "rm" "-f" "e45cb4412c05be126894c1f6844a233c3e076bb85200f700ec7969f7f259c6f7"`
[INFO] [stdout] e45cb4412c05be126894c1f6844a233c3e076bb85200f700ec7969f7f259c6f7