Dec 04 10:04:50.059 INFO checking singaraiona/slab against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:04:50.059 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 10:04:50.539 INFO [stdout] fb8c6e87a7a9654b9ae64ff60cbbc71445c5b55e5310d96119e823cc99cd3f50
Dec 04 10:04:50.545 INFO running `"docker" "start" "-a" "fb8c6e87a7a9654b9ae64ff60cbbc71445c5b55e5310d96119e823cc99cd3f50"`
Dec 04 10:04:51.775 INFO [stderr] usermod: no changes
Dec 04 10:04:51.863 INFO [stderr]     Checking slab v0.1.0 (/source)
Dec 04 10:04:52.256 INFO [stderr] warning: unused import: `std::fmt`
Dec 04 10:04:52.256 INFO [stderr]  --> src/heap.rs:1:5
Dec 04 10:04:52.256 INFO [stderr]   |
Dec 04 10:04:52.256 INFO [stderr] 1 | use std::fmt;
Dec 04 10:04:52.256 INFO [stderr]   |     ^^^^^^^^
Dec 04 10:04:52.256 INFO [stderr]   |
Dec 04 10:04:52.256 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 10:04:52.256 INFO [stderr] 
Dec 04 10:04:52.263 INFO [stderr] warning: unused import: `Level`
Dec 04 10:04:52.263 INFO [stderr]  --> src/main.rs:4:16
Dec 04 10:04:52.263 INFO [stderr]   |
Dec 04 10:04:52.263 INFO [stderr] 4 | use env::{AST, Level, Environment};
Dec 04 10:04:52.263 INFO [stderr]   |                ^^^^^
Dec 04 10:04:52.263 INFO [stderr] 
Dec 04 10:04:52.268 INFO [stderr] warning: unused import: `std::fmt`
Dec 04 10:04:52.268 INFO [stderr]  --> src/heap.rs:1:5
Dec 04 10:04:52.268 INFO [stderr]   |
Dec 04 10:04:52.268 INFO [stderr] 1 | use std::fmt;
Dec 04 10:04:52.268 INFO [stderr]   |     ^^^^^^^^
Dec 04 10:04:52.268 INFO [stderr]   |
Dec 04 10:04:52.268 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 10:04:52.268 INFO [stderr] 
Dec 04 10:04:52.268 INFO [stderr] warning: unused import: `Level`
Dec 04 10:04:52.268 INFO [stderr]  --> src/main.rs:4:16
Dec 04 10:04:52.268 INFO [stderr]   |
Dec 04 10:04:52.268 INFO [stderr] 4 | use env::{AST, Level, Environment};
Dec 04 10:04:52.268 INFO [stderr]   |                ^^^^^
Dec 04 10:04:52.268 INFO [stderr] 
Dec 04 10:04:52.423 INFO [stderr] warning: function is never used: `str2key`
Dec 04 10:04:52.423 INFO [stderr]  --> src/main.rs:7:1
Dec 04 10:04:52.423 INFO [stderr]   |
Dec 04 10:04:52.423 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Dec 04 10:04:52.423 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:04:52.423 INFO [stderr]   |
Dec 04 10:04:52.423 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 10:04:52.423 INFO [stderr] 
Dec 04 10:04:52.423 INFO [stderr] warning: function is never used: `test_env`
Dec 04 10:04:52.423 INFO [stderr]   --> src/main.rs:16:1
Dec 04 10:04:52.423 INFO [stderr]    |
Dec 04 10:04:52.423 INFO [stderr] 16 | fn test_env() {
Dec 04 10:04:52.423 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 04 10:04:52.423 INFO [stderr] 
Dec 04 10:04:52.425 INFO [stderr] warning: function is never used: `str2key`
Dec 04 10:04:52.425 INFO [stderr]  --> src/main.rs:7:1
Dec 04 10:04:52.425 INFO [stderr]   |
Dec 04 10:04:52.425 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Dec 04 10:04:52.425 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:04:52.425 INFO [stderr]   |
Dec 04 10:04:52.425 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 10:04:52.425 INFO [stderr] 
Dec 04 10:04:52.425 INFO [stderr] warning: function is never used: `test_env`
Dec 04 10:04:52.425 INFO [stderr]   --> src/main.rs:16:1
Dec 04 10:04:52.425 INFO [stderr]    |
Dec 04 10:04:52.425 INFO [stderr] 16 | fn test_env() {
Dec 04 10:04:52.425 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 04 10:04:52.425 INFO [stderr] 
Dec 04 10:04:52.451 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 04 10:04:52.452 INFO [stderr] su: No module specific data is present
Dec 04 10:04:52.973 INFO running `"docker" "inspect" "fb8c6e87a7a9654b9ae64ff60cbbc71445c5b55e5310d96119e823cc99cd3f50"`
Dec 04 10:04:53.192 INFO running `"docker" "rm" "-f" "fb8c6e87a7a9654b9ae64ff60cbbc71445c5b55e5310d96119e823cc99cd3f50"`
Dec 04 10:04:53.502 INFO [stdout] fb8c6e87a7a9654b9ae64ff60cbbc71445c5b55e5310d96119e823cc99cd3f50