Dec 14 10:47:22.732 INFO testing EFulmer/rust-koans against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 10:47:22.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 14 10:47:23.267 INFO [stdout] 36208ed68ad3dc56a3a519431f962a2ebf3d2f6e306a4bace2aa807942c7e4eb
Dec 14 10:47:23.269 INFO running `"docker" "start" "-a" "36208ed68ad3dc56a3a519431f962a2ebf3d2f6e306a4bace2aa807942c7e4eb"`
Dec 14 10:47:24.506 INFO [stderr] usermod: no changes
Dec 14 10:47:24.603 INFO [stderr]    Compiling rust-koans v0.1.0 (/source)
Dec 14 10:47:25.131 INFO [stderr] warning: unused import: `util::*`
Dec 14 10:47:25.131 INFO [stderr]  --> src/about_asserts.rs:1:5
Dec 14 10:47:25.131 INFO [stderr]   |
Dec 14 10:47:25.135 INFO [stderr] 1 | use util::*;
Dec 14 10:47:25.138 INFO [stderr]   |     ^^^^^^^
Dec 14 10:47:25.139 INFO [stderr]   |
Dec 14 10:47:25.139 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 10:47:25.139 INFO [stderr] 
Dec 14 10:47:25.184 INFO [stderr] warning: function is never used: `test_eq`
Dec 14 10:47:25.184 INFO [stderr]  --> src/util.rs:6:1
Dec 14 10:47:25.184 INFO [stderr]   |
Dec 14 10:47:25.184 INFO [stderr] 6 | pub fn test_eq<T: Any + Debug, U: Any + Debug + PartialEq>(actual: T, expected: U) 
Dec 14 10:47:25.184 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:47:25.184 INFO [stderr]   |
Dec 14 10:47:25.184 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 14 10:47:25.184 INFO [stderr] 
Dec 14 10:47:25.184 INFO [stderr] warning: function is never used: `test_true`
Dec 14 10:47:25.184 INFO [stderr]   --> src/util.rs:23:1
Dec 14 10:47:25.184 INFO [stderr]    |
Dec 14 10:47:25.184 INFO [stderr] 23 | pub fn test_true<T: Any + Debug + PartialEq>(v: T) {
Dec 14 10:47:25.184 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:47:25.184 INFO [stderr] 
Dec 14 10:47:25.495 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Dec 14 10:47:25.499 INFO [stderr] su: No module specific data is present
Dec 14 10:47:26.248 INFO running `"docker" "inspect" "36208ed68ad3dc56a3a519431f962a2ebf3d2f6e306a4bace2aa807942c7e4eb"`
Dec 14 10:47:26.487 INFO running `"docker" "rm" "-f" "36208ed68ad3dc56a3a519431f962a2ebf3d2f6e306a4bace2aa807942c7e4eb"`
Dec 14 10:47:26.767 INFO [stdout] 36208ed68ad3dc56a3a519431f962a2ebf3d2f6e306a4bace2aa807942c7e4eb
Dec 14 10:47:26.775 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 14 10:47:27.276 INFO [stdout] 81e6f78c835bca0df677660d6e971a3bc1bc6625a22f87479d1a3a91d92b731e
Dec 14 10:47:27.278 INFO running `"docker" "start" "-a" "81e6f78c835bca0df677660d6e971a3bc1bc6625a22f87479d1a3a91d92b731e"`
Dec 14 10:47:29.251 INFO [stderr] usermod: no changes
Dec 14 10:47:29.303 INFO [stderr]    Compiling rust-koans v0.1.0 (/source)
Dec 14 10:47:30.221 INFO [stderr] warning: function is never used: `test_true`
Dec 14 10:47:30.221 INFO [stderr]   --> src/util.rs:23:1
Dec 14 10:47:30.221 INFO [stderr]    |
Dec 14 10:47:30.221 INFO [stderr] 23 | pub fn test_true<T: Any + Debug + PartialEq>(v: T) {
Dec 14 10:47:30.222 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:47:30.222 INFO [stderr]    |
Dec 14 10:47:30.222 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 14 10:47:30.222 INFO [stderr] 
Dec 14 10:47:30.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
Dec 14 10:47:30.654 INFO [stderr] su: No module specific data is present
Dec 14 10:47:31.108 INFO running `"docker" "inspect" "81e6f78c835bca0df677660d6e971a3bc1bc6625a22f87479d1a3a91d92b731e"`
Dec 14 10:47:31.236 INFO running `"docker" "rm" "-f" "81e6f78c835bca0df677660d6e971a3bc1bc6625a22f87479d1a3a91d92b731e"`
Dec 14 10:47:31.385 INFO [stdout] 81e6f78c835bca0df677660d6e971a3bc1bc6625a22f87479d1a3a91d92b731e