Nov 29 18:07:30.950 INFO checking singaraiona/slab against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 18:07:30.950 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 29 18:07:31.312 INFO [stdout] b569f537676207fbf5bc15f4f4caef1faa1db6ce0a104276d88a01113299d368
Nov 29 18:07:31.318 INFO running `"docker" "start" "-a" "b569f537676207fbf5bc15f4f4caef1faa1db6ce0a104276d88a01113299d368"`
Nov 29 18:07:32.753 INFO [stderr] usermod: no changes
Nov 29 18:07:32.816 INFO [stderr]     Checking slab v0.1.0 (/source)
Nov 29 18:07:33.128 INFO [stderr] warning: unused import: `std::fmt`
Nov 29 18:07:33.128 INFO [stderr]  --> src/heap.rs:1:5
Nov 29 18:07:33.128 INFO [stderr]   |
Nov 29 18:07:33.128 INFO [stderr] 1 | use std::fmt;
Nov 29 18:07:33.128 INFO [stderr]   |     ^^^^^^^^
Nov 29 18:07:33.128 INFO [stderr]   |
Nov 29 18:07:33.128 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 18:07:33.128 INFO [stderr] 
Nov 29 18:07:33.128 INFO [stderr] warning: unused import: `Level`
Nov 29 18:07:33.128 INFO [stderr]  --> src/main.rs:4:16
Nov 29 18:07:33.128 INFO [stderr]   |
Nov 29 18:07:33.128 INFO [stderr] 4 | use env::{AST, Level, Environment};
Nov 29 18:07:33.128 INFO [stderr]   |                ^^^^^
Nov 29 18:07:33.128 INFO [stderr] 
Nov 29 18:07:33.152 INFO [stderr] warning: unused import: `std::fmt`
Nov 29 18:07:33.152 INFO [stderr]  --> src/heap.rs:1:5
Nov 29 18:07:33.152 INFO [stderr]   |
Nov 29 18:07:33.152 INFO [stderr] 1 | use std::fmt;
Nov 29 18:07:33.152 INFO [stderr]   |     ^^^^^^^^
Nov 29 18:07:33.152 INFO [stderr]   |
Nov 29 18:07:33.152 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 18:07:33.153 INFO [stderr] 
Nov 29 18:07:33.153 INFO [stderr] warning: unused import: `Level`
Nov 29 18:07:33.153 INFO [stderr]  --> src/main.rs:4:16
Nov 29 18:07:33.153 INFO [stderr]   |
Nov 29 18:07:33.153 INFO [stderr] 4 | use env::{AST, Level, Environment};
Nov 29 18:07:33.153 INFO [stderr]   |                ^^^^^
Nov 29 18:07:33.153 INFO [stderr] 
Nov 29 18:07:33.344 INFO [stderr] warning: function is never used: `str2key`
Nov 29 18:07:33.344 INFO [stderr]  --> src/main.rs:7:1
Nov 29 18:07:33.344 INFO [stderr]   |
Nov 29 18:07:33.344 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Nov 29 18:07:33.344 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 18:07:33.344 INFO [stderr]   |
Nov 29 18:07:33.346 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 18:07:33.346 INFO [stderr] 
Nov 29 18:07:33.346 INFO [stderr] warning: function is never used: `test_env`
Nov 29 18:07:33.346 INFO [stderr]   --> src/main.rs:16:1
Nov 29 18:07:33.346 INFO [stderr]    |
Nov 29 18:07:33.346 INFO [stderr] 16 | fn test_env() {
Nov 29 18:07:33.346 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 29 18:07:33.346 INFO [stderr] 
Nov 29 18:07:33.408 INFO [stderr] warning: function is never used: `str2key`
Nov 29 18:07:33.408 INFO [stderr]  --> src/main.rs:7:1
Nov 29 18:07:33.408 INFO [stderr]   |
Nov 29 18:07:33.408 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Nov 29 18:07:33.408 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 18:07:33.408 INFO [stderr]   |
Nov 29 18:07:33.408 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 18:07:33.408 INFO [stderr] 
Nov 29 18:07:33.408 INFO [stderr] warning: function is never used: `test_env`
Nov 29 18:07:33.408 INFO [stderr]   --> src/main.rs:16:1
Nov 29 18:07:33.408 INFO [stderr]    |
Nov 29 18:07:33.408 INFO [stderr] 16 | fn test_env() {
Nov 29 18:07:33.408 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 29 18:07:33.408 INFO [stderr] 
Nov 29 18:07:33.439 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Nov 29 18:07:33.445 INFO [stderr] su: No module specific data is present
Nov 29 18:07:34.243 INFO running `"docker" "inspect" "b569f537676207fbf5bc15f4f4caef1faa1db6ce0a104276d88a01113299d368"`
Nov 29 18:07:34.498 INFO running `"docker" "rm" "-f" "b569f537676207fbf5bc15f4f4caef1faa1db6ce0a104276d88a01113299d368"`
Nov 29 18:07:34.824 INFO [stdout] b569f537676207fbf5bc15f4f4caef1faa1db6ce0a104276d88a01113299d368