Dec 18 02:38:17.326 INFO checking cedricleroy/rust-tuto against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 02:38:17.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/cedricleroy/rust-tuto:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:38:17.744 INFO [stdout] a33ea9b4e817d77c4662f24c4f81b6898831067ef23c7c094486ebb1c82042ee
Dec 18 02:38:17.748 INFO running `"docker" "start" "-a" "a33ea9b4e817d77c4662f24c4f81b6898831067ef23c7c094486ebb1c82042ee"`
Dec 18 02:38:19.152 INFO [stderr]     Checking rust-tuto v0.1.0 (/opt/crater/workdir)
Dec 18 02:38:19.600 INFO [stderr] warning: value assigned to `y` is never read
Dec 18 02:38:19.600 INFO [stderr]   --> src/main.rs:13:13
Dec 18 02:38:19.600 INFO [stderr]    |
Dec 18 02:38:19.600 INFO [stderr] 13 |     let mut y = 21;
Dec 18 02:38:19.600 INFO [stderr]    |             ^
Dec 18 02:38:19.600 INFO [stderr]    |
Dec 18 02:38:19.600 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 02:38:19.600 INFO [stderr] 
Dec 18 02:38:19.600 INFO [stderr] warning: value assigned to `y` is never read
Dec 18 02:38:19.600 INFO [stderr]   --> src/main.rs:13:13
Dec 18 02:38:19.600 INFO [stderr]    |
Dec 18 02:38:19.600 INFO [stderr] 13 |     let mut y = 21;
Dec 18 02:38:19.600 INFO [stderr]    |             ^
Dec 18 02:38:19.600 INFO [stderr]    |
Dec 18 02:38:19.600 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 02:38:19.600 INFO [stderr] 
Dec 18 02:38:19.628 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:38:19.628 INFO [stderr]   --> src/json.rs:12:5
Dec 18 02:38:19.628 INFO [stderr]    |
Dec 18 02:38:19.628 INFO [stderr] 12 |     file.read_to_string(&mut content);
Dec 18 02:38:19.628 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:38:19.628 INFO [stderr]    |
Dec 18 02:38:19.628 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 02:38:19.628 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:38:19.628 INFO [stderr] 
Dec 18 02:38:19.628 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:38:19.628 INFO [stderr]   --> src/json.rs:12:5
Dec 18 02:38:19.628 INFO [stderr]    |
Dec 18 02:38:19.628 INFO [stderr] 12 |     file.read_to_string(&mut content);
Dec 18 02:38:19.628 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:38:19.628 INFO [stderr]    |
Dec 18 02:38:19.628 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 02:38:19.628 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:38:19.628 INFO [stderr] 
Dec 18 02:38:19.651 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 18 02:38:20.055 INFO running `"docker" "inspect" "a33ea9b4e817d77c4662f24c4f81b6898831067ef23c7c094486ebb1c82042ee"`
Dec 18 02:38:20.171 INFO running `"docker" "rm" "-f" "a33ea9b4e817d77c4662f24c4f81b6898831067ef23c7c094486ebb1c82042ee"`
Dec 18 02:38:20.353 INFO [stdout] a33ea9b4e817d77c4662f24c4f81b6898831067ef23c7c094486ebb1c82042ee