Dec 05 13:27:52.452 INFO testing mvanniekerk/abelian_sandpile against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 13:27:52.455 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 13:27:52.808 INFO [stdout] e674290ba69379411c206c0cebb4e7112b64fea67e784a5b757f43f8429718e2
Dec 05 13:27:52.808 INFO running `"docker" "start" "-a" "e674290ba69379411c206c0cebb4e7112b64fea67e784a5b757f43f8429718e2"`
Dec 05 13:27:53.844 INFO [stderr] usermod: no changes
Dec 05 13:27:54.000 INFO [stderr]    Compiling num-derive v0.2.2
Dec 05 13:27:54.004 INFO [stderr]    Compiling png v0.12.0
Dec 05 13:27:54.009 INFO [stderr]    Compiling jpeg-decoder v0.1.15
Dec 05 13:27:58.419 INFO [stderr]    Compiling image v0.19.0
Dec 05 13:28:15.512 INFO [stderr]    Compiling abelian_sandpile v0.1.0 (/source)
Dec 05 13:28:16.852 INFO [stderr] warning: function is never used: `print_map`
Dec 05 13:28:16.852 INFO [stderr]   --> src/main.rs:65:1
Dec 05 13:28:16.852 INFO [stderr]    |
Dec 05 13:28:16.852 INFO [stderr] 65 | fn print_map(map: &Map) {
Dec 05 13:28:16.852 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:16.852 INFO [stderr]    |
Dec 05 13:28:16.852 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 13:28:16.852 INFO [stderr] 
Dec 05 13:28:16.852 INFO [stderr] warning: function is never used: `add`
Dec 05 13:28:16.852 INFO [stderr]    --> src/main.rs:107:1
Dec 05 13:28:16.852 INFO [stderr]     |
Dec 05 13:28:16.852 INFO [stderr] 107 | fn add(one: &Map, two: &Map) -> Map {
Dec 05 13:28:16.852 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:16.852 INFO [stderr] 
Dec 05 13:28:16.852 INFO [stderr] warning: function is never used: `negate`
Dec 05 13:28:16.852 INFO [stderr]    --> src/main.rs:117:1
Dec 05 13:28:16.852 INFO [stderr]     |
Dec 05 13:28:16.852 INFO [stderr] 117 | fn negate(mat: &Map) -> Map {
Dec 05 13:28:16.852 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:16.852 INFO [stderr] 
Dec 05 13:28:16.852 INFO [stderr] warning: function is never used: `subtract`
Dec 05 13:28:16.852 INFO [stderr]    --> src/main.rs:127:1
Dec 05 13:28:16.852 INFO [stderr]     |
Dec 05 13:28:16.852 INFO [stderr] 127 | fn subtract(one: &Map, two: &Map) -> Map {
Dec 05 13:28:16.852 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:16.852 INFO [stderr] 
Dec 05 13:28:16.852 INFO [stderr] warning: function is never used: `identity`
Dec 05 13:28:16.852 INFO [stderr]    --> src/main.rs:131:1
Dec 05 13:28:16.852 INFO [stderr]     |
Dec 05 13:28:16.852 INFO [stderr] 131 | fn identity() -> Map {
Dec 05 13:28:16.852 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:16.852 INFO [stderr] 
Dec 05 13:28:16.852 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:28:16.852 INFO [stderr]    --> src/main.rs:157:5
Dec 05 13:28:16.852 INFO [stderr]     |
Dec 05 13:28:16.852 INFO [stderr] 157 |     create_dir_all(directory);
Dec 05 13:28:16.852 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:16.852 INFO [stderr]     |
Dec 05 13:28:16.852 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 13:28:16.852 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:28:16.852 INFO [stderr] 
Dec 05 13:28:18.862 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.00s
Dec 05 13:28:18.867 INFO [stderr] su: No module specific data is present
Dec 05 13:28:19.498 INFO running `"docker" "inspect" "e674290ba69379411c206c0cebb4e7112b64fea67e784a5b757f43f8429718e2"`
Dec 05 13:28:19.904 INFO running `"docker" "rm" "-f" "e674290ba69379411c206c0cebb4e7112b64fea67e784a5b757f43f8429718e2"`
Dec 05 13:28:20.192 INFO [stdout] e674290ba69379411c206c0cebb4e7112b64fea67e784a5b757f43f8429718e2
Dec 05 13:28:20.204 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 13:28:20.848 INFO [stdout] 5606f3e341a6cece2ee0ead1a50d6ca09a1417480371e9160b44ec338d7d577d
Dec 05 13:28:20.854 INFO running `"docker" "start" "-a" "5606f3e341a6cece2ee0ead1a50d6ca09a1417480371e9160b44ec338d7d577d"`
Dec 05 13:28:22.291 INFO [stderr] usermod: no changes
Dec 05 13:28:22.440 INFO [stderr]    Compiling abelian_sandpile v0.1.0 (/source)
Dec 05 13:28:23.571 INFO [stderr] warning: function is never used: `print_map`
Dec 05 13:28:23.571 INFO [stderr]   --> src/main.rs:65:1
Dec 05 13:28:23.571 INFO [stderr]    |
Dec 05 13:28:23.571 INFO [stderr] 65 | fn print_map(map: &Map) {
Dec 05 13:28:23.571 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:23.571 INFO [stderr]    |
Dec 05 13:28:23.572 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 13:28:23.572 INFO [stderr] 
Dec 05 13:28:23.572 INFO [stderr] warning: function is never used: `add`
Dec 05 13:28:23.572 INFO [stderr]    --> src/main.rs:107:1
Dec 05 13:28:23.572 INFO [stderr]     |
Dec 05 13:28:23.572 INFO [stderr] 107 | fn add(one: &Map, two: &Map) -> Map {
Dec 05 13:28:23.572 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:23.572 INFO [stderr] 
Dec 05 13:28:23.572 INFO [stderr] warning: function is never used: `negate`
Dec 05 13:28:23.572 INFO [stderr]    --> src/main.rs:117:1
Dec 05 13:28:23.572 INFO [stderr]     |
Dec 05 13:28:23.572 INFO [stderr] 117 | fn negate(mat: &Map) -> Map {
Dec 05 13:28:23.572 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:23.572 INFO [stderr] 
Dec 05 13:28:23.572 INFO [stderr] warning: function is never used: `subtract`
Dec 05 13:28:23.572 INFO [stderr]    --> src/main.rs:127:1
Dec 05 13:28:23.572 INFO [stderr]     |
Dec 05 13:28:23.572 INFO [stderr] 127 | fn subtract(one: &Map, two: &Map) -> Map {
Dec 05 13:28:23.572 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:23.572 INFO [stderr] 
Dec 05 13:28:23.572 INFO [stderr] warning: function is never used: `identity`
Dec 05 13:28:23.572 INFO [stderr]    --> src/main.rs:131:1
Dec 05 13:28:23.573 INFO [stderr]     |
Dec 05 13:28:23.573 INFO [stderr] 131 | fn identity() -> Map {
Dec 05 13:28:23.573 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:23.573 INFO [stderr] 
Dec 05 13:28:23.573 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:28:23.573 INFO [stderr]    --> src/main.rs:157:5
Dec 05 13:28:23.573 INFO [stderr]     |
Dec 05 13:28:23.573 INFO [stderr] 157 |     create_dir_all(directory);
Dec 05 13:28:23.573 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:28:23.573 INFO [stderr]     |
Dec 05 13:28:23.573 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 13:28:23.573 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:28:23.573 INFO [stderr] 
Dec 05 13:28:24.078 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
Dec 05 13:28:24.084 INFO [stderr] su: No module specific data is present
Dec 05 13:28:24.828 INFO running `"docker" "inspect" "5606f3e341a6cece2ee0ead1a50d6ca09a1417480371e9160b44ec338d7d577d"`
Dec 05 13:28:25.234 INFO running `"docker" "rm" "-f" "5606f3e341a6cece2ee0ead1a50d6ca09a1417480371e9160b44ec338d7d577d"`
Dec 05 13:28:25.480 INFO [stdout] 5606f3e341a6cece2ee0ead1a50d6ca09a1417480371e9160b44ec338d7d577d
Dec 05 13:28:25.488 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --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 05 13:28:25.938 INFO [stdout] 56df9100596d0d59742dda49015d956e67248b69e107f2b903c78b52e197d2f1
Dec 05 13:28:25.940 INFO running `"docker" "start" "-a" "56df9100596d0d59742dda49015d956e67248b69e107f2b903c78b52e197d2f1"`
Dec 05 13:28:27.724 INFO [stderr] usermod: no changes
Dec 05 13:28:27.872 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
Dec 05 13:28:27.884 INFO [stderr]      Running /target/debug/deps/abelian_sandpile-3c873f58584dd83a
Dec 05 13:28:27.888 INFO [stdout] 
Dec 05 13:28:27.888 INFO [stdout] running 0 tests
Dec 05 13:28:27.888 INFO [stdout] 
Dec 05 13:28:27.888 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 13:28:27.888 INFO [stdout] 
Dec 05 13:28:27.888 INFO [stderr] su: No module specific data is present
Dec 05 13:28:29.082 INFO running `"docker" "inspect" "56df9100596d0d59742dda49015d956e67248b69e107f2b903c78b52e197d2f1"`
Dec 05 13:28:29.366 INFO running `"docker" "rm" "-f" "56df9100596d0d59742dda49015d956e67248b69e107f2b903c78b52e197d2f1"`
Dec 05 13:28:29.632 INFO [stdout] 56df9100596d0d59742dda49015d956e67248b69e107f2b903c78b52e197d2f1