Dec 18 08:24:26.726 INFO checking BenjaminGuenin/rust-programming-tutorial against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:24:26.726 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/BenjaminGuenin/rust-programming-tutorial:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:24:27.025 INFO [stdout] 1de9707e82bc5b2aa6758f50b5c005490c01395df7e21314bf5e231a52dcdbbc
Dec 18 08:24:27.030 INFO running `"docker" "start" "-a" "1de9707e82bc5b2aa6758f50b5c005490c01395df7e21314bf5e231a52dcdbbc"`
Dec 18 08:24:27.661 INFO [stderr]     Checking rust-programming-tutorial v0.1.0 (/opt/crater/workdir)
Dec 18 08:24:27.940 INFO [stderr] warning: unused variable: `immutable_string`
Dec 18 08:24:27.940 INFO [stderr]  --> src/main.rs:3:9
Dec 18 08:24:27.940 INFO [stderr]   |
Dec 18 08:24:27.940 INFO [stderr] 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Dec 18 08:24:27.940 INFO [stderr]   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Dec 18 08:24:27.940 INFO [stderr]   |
Dec 18 08:24:27.940 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:24:27.940 INFO [stderr] 
Dec 18 08:24:27.940 INFO [stderr] warning: unused variable: `s`
Dec 18 08:24:27.940 INFO [stderr]   --> src/main.rs:11:13
Dec 18 08:24:27.940 INFO [stderr]    |
Dec 18 08:24:27.940 INFO [stderr] 11 |         let s = String::from("hello"); // s is valid from this point forward
Dec 18 08:24:27.940 INFO [stderr]    |             ^ help: consider using `_s` instead
Dec 18 08:24:27.940 INFO [stderr] 
Dec 18 08:24:27.985 INFO [stderr] warning: unused variable: `immutable_string`
Dec 18 08:24:27.985 INFO [stderr]  --> src/main.rs:3:9
Dec 18 08:24:27.985 INFO [stderr]   |
Dec 18 08:24:27.986 INFO [stderr] 3 |     let immutable_string = "hello"; // cannot be modified - stored on the stack
Dec 18 08:24:27.986 INFO [stderr]   |         ^^^^^^^^^^^^^^^^ help: consider using `_immutable_string` instead
Dec 18 08:24:27.986 INFO [stderr]   |
Dec 18 08:24:27.987 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:24:27.987 INFO [stderr] 
Dec 18 08:24:27.987 INFO [stderr] warning: unused variable: `s`
Dec 18 08:24:27.987 INFO [stderr]   --> src/main.rs:11:13
Dec 18 08:24:27.988 INFO [stderr]    |
Dec 18 08:24:27.988 INFO [stderr] 11 |         let s = String::from("hello"); // s is valid from this point forward
Dec 18 08:24:27.988 INFO [stderr]    |             ^ help: consider using `_s` instead
Dec 18 08:24:27.988 INFO [stderr] 
Dec 18 08:24:28.009 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Dec 18 08:24:28.412 INFO running `"docker" "inspect" "1de9707e82bc5b2aa6758f50b5c005490c01395df7e21314bf5e231a52dcdbbc"`
Dec 18 08:24:28.612 INFO running `"docker" "rm" "-f" "1de9707e82bc5b2aa6758f50b5c005490c01395df7e21314bf5e231a52dcdbbc"`
Dec 18 08:24:28.808 INFO [stdout] 1de9707e82bc5b2aa6758f50b5c005490c01395df7e21314bf5e231a52dcdbbc