Nov 29 21:45:33.445 INFO checking mvanniekerk/abelian_sandpile against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 21:45:33.445 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 21:45:33.710 INFO [stdout] 25d1b34cec9c0509a616006b4ecb97c8de95fdfd9af5913f31a86fcc0a2ee50b
Nov 29 21:45:33.712 INFO running `"docker" "start" "-a" "25d1b34cec9c0509a616006b4ecb97c8de95fdfd9af5913f31a86fcc0a2ee50b"`
Nov 29 21:45:34.279 INFO [stderr] usermod: no changes
Nov 29 21:45:34.428 INFO [stderr]    Compiling num-derive v0.2.2
Nov 29 21:45:34.428 INFO [stderr]     Checking png v0.12.0
Nov 29 21:45:36.568 INFO [stderr]     Checking image v0.19.0
Nov 29 21:45:41.756 INFO [stderr]     Checking abelian_sandpile v0.1.0 (/source)
Nov 29 21:45:43.312 INFO [stderr] warning: function is never used: `print_map`
Nov 29 21:45:43.312 INFO [stderr]   --> src/main.rs:65:1
Nov 29 21:45:43.312 INFO [stderr]    |
Nov 29 21:45:43.312 INFO [stderr] 65 | fn print_map(map: &Map) {
Nov 29 21:45:43.312 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.312 INFO [stderr]    |
Nov 29 21:45:43.312 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 21:45:43.312 INFO [stderr] 
Nov 29 21:45:43.312 INFO [stderr] warning: function is never used: `add`
Nov 29 21:45:43.312 INFO [stderr]    --> src/main.rs:107:1
Nov 29 21:45:43.312 INFO [stderr]     |
Nov 29 21:45:43.312 INFO [stderr] 107 | fn add(one: &Map, two: &Map) -> Map {
Nov 29 21:45:43.312 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.312 INFO [stderr] 
Nov 29 21:45:43.312 INFO [stderr] warning: function is never used: `negate`
Nov 29 21:45:43.313 INFO [stderr]    --> src/main.rs:117:1
Nov 29 21:45:43.313 INFO [stderr]     |
Nov 29 21:45:43.313 INFO [stderr] 117 | fn negate(mat: &Map) -> Map {
Nov 29 21:45:43.313 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.313 INFO [stderr] 
Nov 29 21:45:43.313 INFO [stderr] warning: function is never used: `subtract`
Nov 29 21:45:43.316 INFO [stderr]    --> src/main.rs:127:1
Nov 29 21:45:43.316 INFO [stderr]     |
Nov 29 21:45:43.316 INFO [stderr] 127 | fn subtract(one: &Map, two: &Map) -> Map {
Nov 29 21:45:43.316 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.316 INFO [stderr] 
Nov 29 21:45:43.316 INFO [stderr] warning: function is never used: `identity`
Nov 29 21:45:43.316 INFO [stderr]    --> src/main.rs:131:1
Nov 29 21:45:43.316 INFO [stderr]     |
Nov 29 21:45:43.316 INFO [stderr] 131 | fn identity() -> Map {
Nov 29 21:45:43.316 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.316 INFO [stderr] 
Nov 29 21:45:43.317 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 21:45:43.317 INFO [stderr]    --> src/main.rs:157:5
Nov 29 21:45:43.317 INFO [stderr]     |
Nov 29 21:45:43.317 INFO [stderr] 157 |     create_dir_all(directory);
Nov 29 21:45:43.320 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.320 INFO [stderr]     |
Nov 29 21:45:43.320 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 21:45:43.320 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 21:45:43.320 INFO [stderr] 
Nov 29 21:45:43.568 INFO [stderr] warning: function is never used: `print_map`
Nov 29 21:45:43.568 INFO [stderr]   --> src/main.rs:65:1
Nov 29 21:45:43.568 INFO [stderr]    |
Nov 29 21:45:43.568 INFO [stderr] 65 | fn print_map(map: &Map) {
Nov 29 21:45:43.568 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.568 INFO [stderr]    |
Nov 29 21:45:43.568 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 21:45:43.568 INFO [stderr] 
Nov 29 21:45:43.569 INFO [stderr] warning: function is never used: `add`
Nov 29 21:45:43.569 INFO [stderr]    --> src/main.rs:107:1
Nov 29 21:45:43.569 INFO [stderr]     |
Nov 29 21:45:43.569 INFO [stderr] 107 | fn add(one: &Map, two: &Map) -> Map {
Nov 29 21:45:43.569 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.569 INFO [stderr] 
Nov 29 21:45:43.569 INFO [stderr] warning: function is never used: `negate`
Nov 29 21:45:43.569 INFO [stderr]    --> src/main.rs:117:1
Nov 29 21:45:43.569 INFO [stderr]     |
Nov 29 21:45:43.569 INFO [stderr] 117 | fn negate(mat: &Map) -> Map {
Nov 29 21:45:43.569 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.569 INFO [stderr] 
Nov 29 21:45:43.569 INFO [stderr] warning: function is never used: `subtract`
Nov 29 21:45:43.569 INFO [stderr]    --> src/main.rs:127:1
Nov 29 21:45:43.569 INFO [stderr]     |
Nov 29 21:45:43.569 INFO [stderr] 127 | fn subtract(one: &Map, two: &Map) -> Map {
Nov 29 21:45:43.569 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.569 INFO [stderr] 
Nov 29 21:45:43.569 INFO [stderr] warning: function is never used: `identity`
Nov 29 21:45:43.569 INFO [stderr]    --> src/main.rs:131:1
Nov 29 21:45:43.569 INFO [stderr]     |
Nov 29 21:45:43.569 INFO [stderr] 131 | fn identity() -> Map {
Nov 29 21:45:43.569 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.569 INFO [stderr] 
Nov 29 21:45:43.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 21:45:43.569 INFO [stderr]    --> src/main.rs:157:5
Nov 29 21:45:43.569 INFO [stderr]     |
Nov 29 21:45:43.569 INFO [stderr] 157 |     create_dir_all(directory);
Nov 29 21:45:43.569 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 21:45:43.569 INFO [stderr]     |
Nov 29 21:45:43.569 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 21:45:43.569 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 21:45:43.569 INFO [stderr] 
Nov 29 21:45:43.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
Nov 29 21:45:43.593 INFO [stderr] su: No module specific data is present
Nov 29 21:45:44.610 INFO running `"docker" "inspect" "25d1b34cec9c0509a616006b4ecb97c8de95fdfd9af5913f31a86fcc0a2ee50b"`
Nov 29 21:45:44.864 INFO running `"docker" "rm" "-f" "25d1b34cec9c0509a616006b4ecb97c8de95fdfd9af5913f31a86fcc0a2ee50b"`
Nov 29 21:45:45.248 INFO [stdout] 25d1b34cec9c0509a616006b4ecb97c8de95fdfd9af5913f31a86fcc0a2ee50b