Dec 11 09:25:57.825 INFO checking singaraiona/slab against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 09:25:57.825 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 09:25:58.332 INFO [stdout] 17b744a897d56310bb1d1bcfef0ce80c14de6bce850945e6ae379022231f577a
Dec 11 09:25:58.334 INFO running `"docker" "start" "-a" "17b744a897d56310bb1d1bcfef0ce80c14de6bce850945e6ae379022231f577a"`
Dec 11 09:25:59.664 INFO [stderr] usermod: no changes
Dec 11 09:25:59.716 INFO [stderr]     Checking slab v0.1.0 (/source)
Dec 11 09:26:00.051 INFO [stderr] warning: unused import: `std::fmt`
Dec 11 09:26:00.051 INFO [stderr]  --> src/heap.rs:1:5
Dec 11 09:26:00.051 INFO [stderr]   |
Dec 11 09:26:00.052 INFO [stderr] 1 | use std::fmt;
Dec 11 09:26:00.052 INFO [stderr]   |     ^^^^^^^^
Dec 11 09:26:00.052 INFO [stderr]   |
Dec 11 09:26:00.052 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 09:26:00.052 INFO [stderr] 
Dec 11 09:26:00.052 INFO [stderr] warning: unused import: `Level`
Dec 11 09:26:00.052 INFO [stderr]  --> src/main.rs:4:16
Dec 11 09:26:00.052 INFO [stderr]   |
Dec 11 09:26:00.052 INFO [stderr] 4 | use env::{AST, Level, Environment};
Dec 11 09:26:00.052 INFO [stderr]   |                ^^^^^
Dec 11 09:26:00.052 INFO [stderr] 
Dec 11 09:26:00.144 INFO [stderr] warning: unused import: `std::fmt`
Dec 11 09:26:00.145 INFO [stderr]  --> src/heap.rs:1:5
Dec 11 09:26:00.145 INFO [stderr]   |
Dec 11 09:26:00.145 INFO [stderr] 1 | use std::fmt;
Dec 11 09:26:00.145 INFO [stderr]   |     ^^^^^^^^
Dec 11 09:26:00.145 INFO [stderr]   |
Dec 11 09:26:00.145 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 09:26:00.145 INFO [stderr] 
Dec 11 09:26:00.146 INFO [stderr] warning: unused import: `Level`
Dec 11 09:26:00.146 INFO [stderr]  --> src/main.rs:4:16
Dec 11 09:26:00.146 INFO [stderr]   |
Dec 11 09:26:00.146 INFO [stderr] 4 | use env::{AST, Level, Environment};
Dec 11 09:26:00.146 INFO [stderr]   |                ^^^^^
Dec 11 09:26:00.146 INFO [stderr] 
Dec 11 09:26:00.153 INFO [stderr] warning: function is never used: `str2key`
Dec 11 09:26:00.154 INFO [stderr]  --> src/main.rs:7:1
Dec 11 09:26:00.154 INFO [stderr]   |
Dec 11 09:26:00.154 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Dec 11 09:26:00.155 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:26:00.155 INFO [stderr]   |
Dec 11 09:26:00.155 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 09:26:00.155 INFO [stderr] 
Dec 11 09:26:00.156 INFO [stderr] warning: function is never used: `test_env`
Dec 11 09:26:00.156 INFO [stderr]   --> src/main.rs:16:1
Dec 11 09:26:00.156 INFO [stderr]    |
Dec 11 09:26:00.156 INFO [stderr] 16 | fn test_env() {
Dec 11 09:26:00.156 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 09:26:00.156 INFO [stderr] 
Dec 11 09:26:00.310 INFO [stderr] warning: function is never used: `str2key`
Dec 11 09:26:00.310 INFO [stderr]  --> src/main.rs:7:1
Dec 11 09:26:00.310 INFO [stderr]   |
Dec 11 09:26:00.310 INFO [stderr] 7 | fn str2key(s: String) -> [u8; 16] {
Dec 11 09:26:00.310 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:26:00.310 INFO [stderr]   |
Dec 11 09:26:00.310 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 09:26:00.310 INFO [stderr] 
Dec 11 09:26:00.310 INFO [stderr] warning: function is never used: `test_env`
Dec 11 09:26:00.310 INFO [stderr]   --> src/main.rs:16:1
Dec 11 09:26:00.310 INFO [stderr]    |
Dec 11 09:26:00.310 INFO [stderr] 16 | fn test_env() {
Dec 11 09:26:00.311 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 09:26:00.311 INFO [stderr] 
Dec 11 09:26:00.350 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 11 09:26:00.353 INFO [stderr] su: No module specific data is present
Dec 11 09:26:00.892 INFO running `"docker" "inspect" "17b744a897d56310bb1d1bcfef0ce80c14de6bce850945e6ae379022231f577a"`
Dec 11 09:26:01.188 INFO running `"docker" "rm" "-f" "17b744a897d56310bb1d1bcfef0ce80c14de6bce850945e6ae379022231f577a"`
Dec 11 09:26:01.572 INFO [stdout] 17b744a897d56310bb1d1bcfef0ce80c14de6bce850945e6ae379022231f577a