Dec 17 15:50:06.202 INFO checking seb-odessa/btree against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:50:06.202 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/seb-odessa/btree:/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 17 15:50:06.704 INFO [stdout] b8889f98c45d6dcc7285b0c29d45afd04cb2d0fc907d5acd32fc411dc4faa2c1
Dec 17 15:50:06.708 INFO running `"docker" "start" "-a" "b8889f98c45d6dcc7285b0c29d45afd04cb2d0fc907d5acd32fc411dc4faa2c1"`
Dec 17 15:50:08.160 INFO [stderr]     Checking BTree v0.1.0 (/opt/crater/workdir)
Dec 17 15:50:08.336 INFO [stderr] warning: unused import: `Formatter`
Dec 17 15:50:08.336 INFO [stderr]  --> src/main.rs:1:25
Dec 17 15:50:08.336 INFO [stderr]   |
Dec 17 15:50:08.336 INFO [stderr] 1 | use std::fmt::{Display, Formatter};
Dec 17 15:50:08.336 INFO [stderr]   |                         ^^^^^^^^^
Dec 17 15:50:08.336 INFO [stderr]   |
Dec 17 15:50:08.336 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:50:08.336 INFO [stderr] 
Dec 17 15:50:08.464 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:50:08.465 INFO [stderr]    --> src/main.rs:149:14
Dec 17 15:50:08.465 INFO [stderr]     |
Dec 17 15:50:08.465 INFO [stderr] 149 |         Some(mut node) => node.update("Z".to_string()),
Dec 17 15:50:08.465 INFO [stderr]     |              ----^^^^
Dec 17 15:50:08.465 INFO [stderr]     |              |
Dec 17 15:50:08.465 INFO [stderr]     |              help: remove this `mut`
Dec 17 15:50:08.465 INFO [stderr]     |
Dec 17 15:50:08.465 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 15:50:08.465 INFO [stderr] 
Dec 17 15:50:08.465 INFO [stderr] warning: crate `BTree` should have a snake case name such as `btree`
Dec 17 15:50:08.465 INFO [stderr]   |
Dec 17 15:50:08.465 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 17 15:50:08.465 INFO [stderr] 
Dec 17 15:50:08.467 INFO [stderr] warning: unused import: `Formatter`
Dec 17 15:50:08.472 INFO [stderr]  --> src/main.rs:1:25
Dec 17 15:50:08.472 INFO [stderr]   |
Dec 17 15:50:08.472 INFO [stderr] 1 | use std::fmt::{Display, Formatter};
Dec 17 15:50:08.472 INFO [stderr]   |                         ^^^^^^^^^
Dec 17 15:50:08.472 INFO [stderr]   |
Dec 17 15:50:08.472 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:50:08.472 INFO [stderr] 
Dec 17 15:50:08.565 INFO [stderr] warning: variable does not need to be mutable
Dec 17 15:50:08.566 INFO [stderr]    --> src/main.rs:149:14
Dec 17 15:50:08.566 INFO [stderr]     |
Dec 17 15:50:08.566 INFO [stderr] 149 |         Some(mut node) => node.update("Z".to_string()),
Dec 17 15:50:08.566 INFO [stderr]     |              ----^^^^
Dec 17 15:50:08.566 INFO [stderr]     |              |
Dec 17 15:50:08.566 INFO [stderr]     |              help: remove this `mut`
Dec 17 15:50:08.566 INFO [stderr]     |
Dec 17 15:50:08.566 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 15:50:08.566 INFO [stderr] 
Dec 17 15:50:08.566 INFO [stderr] warning: crate `BTree` should have a snake case name such as `btree`
Dec 17 15:50:08.566 INFO [stderr]   |
Dec 17 15:50:08.566 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 17 15:50:08.566 INFO [stderr] 
Dec 17 15:50:08.612 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 17 15:50:09.454 INFO running `"docker" "inspect" "b8889f98c45d6dcc7285b0c29d45afd04cb2d0fc907d5acd32fc411dc4faa2c1"`
Dec 17 15:50:09.772 INFO running `"docker" "rm" "-f" "b8889f98c45d6dcc7285b0c29d45afd04cb2d0fc907d5acd32fc411dc4faa2c1"`
Dec 17 15:50:10.120 INFO [stdout] b8889f98c45d6dcc7285b0c29d45afd04cb2d0fc907d5acd32fc411dc4faa2c1