Dec 19 05:49:56.549 INFO checking waku-waku/rust-samples against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:49:56.549 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/waku-waku/rust-samples:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:49:56.970 INFO [stdout] 9e1e790ec7bc93da5b3dd5ff188266c5c9303b7d52c5443141e2814b2e21acb8
Dec 19 05:49:56.974 INFO running `"docker" "start" "-a" "9e1e790ec7bc93da5b3dd5ff188266c5c9303b7d52c5443141e2814b2e21acb8"`
Dec 19 05:50:00.002 INFO [stderr]     Checking rust-samples v0.1.0 (/opt/crater/workdir)
Dec 19 05:50:00.876 INFO [stderr] warning: value assigned to `src` is never read
Dec 19 05:50:00.876 INFO [stderr]   --> src/make_rust_file.rs:56:10
Dec 19 05:50:00.876 INFO [stderr]    |
Dec 19 05:50:00.876 INFO [stderr] 56 |     let mut src = String::new();
Dec 19 05:50:00.876 INFO [stderr]    |             ^^^
Dec 19 05:50:00.876 INFO [stderr]    |
Dec 19 05:50:00.876 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 05:50:00.876 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 05:50:00.876 INFO [stderr] 
Dec 19 05:50:00.876 INFO [stderr] warning: value assigned to `string` is never read
Dec 19 05:50:00.876 INFO [stderr]   --> src/make_rust_file.rs:79:10
Dec 19 05:50:00.876 INFO [stderr]    |
Dec 19 05:50:00.876 INFO [stderr] 79 |     let mut string = String::new();
Dec 19 05:50:00.876 INFO [stderr]    |             ^^^^^^
Dec 19 05:50:00.876 INFO [stderr]    |
Dec 19 05:50:00.876 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 05:50:00.876 INFO [stderr] 
Dec 19 05:50:01.272 INFO [stderr] warning: value assigned to `src` is never read
Dec 19 05:50:01.272 INFO [stderr]   --> src/make_rust_file.rs:56:10
Dec 19 05:50:01.272 INFO [stderr]    |
Dec 19 05:50:01.272 INFO [stderr] 56 |     let mut src = String::new();
Dec 19 05:50:01.272 INFO [stderr]    |             ^^^
Dec 19 05:50:01.272 INFO [stderr]    |
Dec 19 05:50:01.272 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 05:50:01.272 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 05:50:01.272 INFO [stderr] 
Dec 19 05:50:01.272 INFO [stderr] warning: value assigned to `string` is never read
Dec 19 05:50:01.272 INFO [stderr]   --> src/make_rust_file.rs:79:10
Dec 19 05:50:01.273 INFO [stderr]    |
Dec 19 05:50:01.273 INFO [stderr] 79 |     let mut string = String::new();
Dec 19 05:50:01.273 INFO [stderr]    |             ^^^^^^
Dec 19 05:50:01.273 INFO [stderr]    |
Dec 19 05:50:01.273 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 05:50:01.274 INFO [stderr] 
Dec 19 05:50:01.308 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
Dec 19 05:50:02.410 INFO running `"docker" "inspect" "9e1e790ec7bc93da5b3dd5ff188266c5c9303b7d52c5443141e2814b2e21acb8"`
Dec 19 05:50:02.718 INFO running `"docker" "rm" "-f" "9e1e790ec7bc93da5b3dd5ff188266c5c9303b7d52c5443141e2814b2e21acb8"`
Dec 19 05:50:02.972 INFO [stdout] 9e1e790ec7bc93da5b3dd5ff188266c5c9303b7d52c5443141e2814b2e21acb8