Dec 17 15:20:23.593 INFO checking singaraiona/slab against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 15:20:23.593 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/singaraiona/slab:/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 17 15:20:23.840 INFO [stdout] 3e89c653a3654f3548b1509c12aa3f9b664e78c4fb7e6ef24441ae34477e2187
Dec 17 15:20:23.848 INFO running `"docker" "start" "-a" "3e89c653a3654f3548b1509c12aa3f9b664e78c4fb7e6ef24441ae34477e2187"`
Dec 17 15:20:24.445 INFO [stderr]     Checking slab v0.1.0 (/opt/crater/workdir)
Dec 17 15:20:24.562 INFO [stderr] warning: unused import: `std::fmt`
Dec 17 15:20:24.562 INFO [stderr]  --> src/heap.rs:1:5
Dec 17 15:20:24.562 INFO [stderr]   |
Dec 17 15:20:24.562 INFO [stderr] 1 | use std::fmt;
Dec 17 15:20:24.562 INFO [stderr]   |     ^^^^^^^^
Dec 17 15:20:24.562 INFO [stderr]   |
Dec 17 15:20:24.562 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:20:24.562 INFO [stderr] 
Dec 17 15:20:24.562 INFO [stderr] warning: unused import: `Level`
Dec 17 15:20:24.562 INFO [stderr]  --> src/main.rs:4:16
Dec 17 15:20:24.562 INFO [stderr]   |
Dec 17 15:20:24.562 INFO [stderr] 4 | use env::{AST, Level, Environment};
Dec 17 15:20:24.562 INFO [stderr]   |                ^^^^^
Dec 17 15:20:24.562 INFO [stderr] 
Dec 17 15:20:24.587 INFO [stderr] warning: unused import: `std::fmt`
Dec 17 15:20:24.588 INFO [stderr]  --> src/heap.rs:1:5
Dec 17 15:20:24.588 INFO [stderr]   |
Dec 17 15:20:24.588 INFO [stderr] 1 | use std::fmt;
Dec 17 15:20:24.588 INFO [stderr]   |     ^^^^^^^^
Dec 17 15:20:24.588 INFO [stderr]   |
Dec 17 15:20:24.588 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:20:24.588 INFO [stderr] 
Dec 17 15:20:24.588 INFO [stderr] warning: unused import: `Level`
Dec 17 15:20:24.588 INFO [stderr]  --> src/main.rs:4:16
Dec 17 15:20:24.588 INFO [stderr]   |
Dec 17 15:20:24.588 INFO [stderr] 4 | use env::{AST, Level, Environment};
Dec 17 15:20:24.588 INFO [stderr]   |                ^^^^^
Dec 17 15:20:24.588 INFO [stderr] 
Dec 17 15:20:24.693 INFO [stderr] warning: function is never used: `str2key`
Dec 17 15:20:24.693 INFO [stderr]  --> src/main.rs:7:1
Dec 17 15:20:24.693 INFO [stderr]   |
Dec 17 15:20:24.693 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Dec 17 15:20:24.693 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:20:24.693 INFO [stderr]   |
Dec 17 15:20:24.693 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 15:20:24.693 INFO [stderr] 
Dec 17 15:20:24.693 INFO [stderr] warning: function is never used: `test_env`
Dec 17 15:20:24.693 INFO [stderr]   --> src/main.rs:16:1
Dec 17 15:20:24.693 INFO [stderr]    |
Dec 17 15:20:24.693 INFO [stderr] 16 | fn test_env() {
Dec 17 15:20:24.693 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 17 15:20:24.693 INFO [stderr] 
Dec 17 15:20:24.693 INFO [stderr] warning: function is never used: `str2key`
Dec 17 15:20:24.693 INFO [stderr]  --> src/main.rs:7:1
Dec 17 15:20:24.693 INFO [stderr]   |
Dec 17 15:20:24.693 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Dec 17 15:20:24.693 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:20:24.693 INFO [stderr]   |
Dec 17 15:20:24.693 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 15:20:24.693 INFO [stderr] 
Dec 17 15:20:24.694 INFO [stderr] warning: function is never used: `test_env`
Dec 17 15:20:24.694 INFO [stderr]   --> src/main.rs:16:1
Dec 17 15:20:24.694 INFO [stderr]    |
Dec 17 15:20:24.694 INFO [stderr] 16 | fn test_env() {
Dec 17 15:20:24.694 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 17 15:20:24.694 INFO [stderr] 
Dec 17 15:20:24.719 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Dec 17 15:20:25.044 INFO running `"docker" "inspect" "3e89c653a3654f3548b1509c12aa3f9b664e78c4fb7e6ef24441ae34477e2187"`
Dec 17 15:20:25.154 INFO running `"docker" "rm" "-f" "3e89c653a3654f3548b1509c12aa3f9b664e78c4fb7e6ef24441ae34477e2187"`
Dec 17 15:20:25.287 INFO [stdout] 3e89c653a3654f3548b1509c12aa3f9b664e78c4fb7e6ef24441ae34477e2187