[INFO] crate yocto 0.3.0 is already in cache
[INFO] extracting crate yocto 0.3.0 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/yocto/0.3.0
[INFO] extracting crate yocto 0.3.0 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/yocto/0.3.0
[INFO] validating manifest of yocto-0.3.0 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yocto-0.3.0 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yocto-0.3.0
[INFO] finished frobbing yocto-0.3.0
[INFO] frobbed toml for yocto-0.3.0 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/yocto/0.3.0/Cargo.toml
[INFO] started frobbing yocto-0.3.0
[INFO] finished frobbing yocto-0.3.0
[INFO] frobbed toml for yocto-0.3.0 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/yocto/0.3.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking yocto-0.3.0 against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-6/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/yocto/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 07a3a16de7f74359f548d6440fc46178b1cc9b0c2937535461eacdf493084764
[INFO] running `"docker" "start" "-a" "07a3a16de7f74359f548d6440fc46178b1cc9b0c2937535461eacdf493084764"`
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking yocto v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `module_length`
[INFO] [stderr]    --> src/logger.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let module_length = self.update_module_width(module.graphemes(true).count());
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_module_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target_length`
[INFO] [stderr]    --> src/logger.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |             let target_length = self.update_target_width(target.graphemes(true).count());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_target_length`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/threadp.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `module_length`
[INFO] [stderr]    --> src/logger.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let module_length = self.update_module_width(module.graphemes(true).count());
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_module_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target_length`
[INFO] [stderr]    --> src/logger.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |             let target_length = self.update_target_width(target.graphemes(true).count());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_target_length`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/threadp.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handle`
[INFO] [stderr]    --> tests/integration.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let handle = thread::spawn(|| {
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_handle`
[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]    --> tests/integration.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     stream.read(&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 3.14s
[INFO] running `"docker" "inspect" "07a3a16de7f74359f548d6440fc46178b1cc9b0c2937535461eacdf493084764"`
[INFO] running `"docker" "rm" "-f" "07a3a16de7f74359f548d6440fc46178b1cc9b0c2937535461eacdf493084764"`
[INFO] [stdout] 07a3a16de7f74359f548d6440fc46178b1cc9b0c2937535461eacdf493084764