Oct 12 16:53:41.010 INFO checking mvanniekerk/abelian_sandpile against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 16:53:41.011 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 16:53:41.493 INFO blam! a0682d5ec5841dc518af022b3d0ef075c575e9cfc5afb74172466813eb5f92cb
Oct 12 16:53:41.494 INFO running `"docker" "start" "-a" "a0682d5ec5841dc518af022b3d0ef075c575e9cfc5afb74172466813eb5f92cb"`
Oct 12 16:53:42.014 INFO kablam! usermod: no changes
Oct 12 16:53:42.140 INFO kablam!    Compiling num-integer v0.1.38
Oct 12 16:53:42.141 INFO kablam!     Checking inflate v0.4.2
Oct 12 16:53:42.141 INFO kablam!    Compiling num-traits v0.2.4
Oct 12 16:53:42.141 INFO kablam!    Compiling syn v0.14.2
Oct 12 16:53:42.141 INFO kablam!     Checking jpeg-decoder v0.1.15
Oct 12 16:53:45.984 INFO kablam!     Checking num-iter v0.1.37
Oct 12 16:53:45.984 INFO kablam!     Checking num-rational v0.1.42
Oct 12 16:53:46.416 INFO kablam!     Checking png v0.12.0
Oct 12 16:53:53.700 INFO kablam!    Compiling num-derive v0.2.2
Oct 12 16:53:56.311 INFO kablam!     Checking image v0.19.0
Oct 12 16:54:01.696 INFO kablam!     Checking abelian_sandpile v0.1.0 (/source)
Oct 12 16:54:03.328 INFO kablam! warning: function is never used: `print_map`
Oct 12 16:54:03.328 INFO kablam!   --> src/main.rs:65:1
Oct 12 16:54:03.328 INFO kablam!    |
Oct 12 16:54:03.329 INFO kablam! 65 | fn print_map(map: &Map) {
Oct 12 16:54:03.329 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.329 INFO kablam!    |
Oct 12 16:54:03.329 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 16:54:03.329 INFO kablam! 
Oct 12 16:54:03.329 INFO kablam! warning: function is never used: `add`
Oct 12 16:54:03.329 INFO kablam!    --> src/main.rs:107:1
Oct 12 16:54:03.329 INFO kablam!     |
Oct 12 16:54:03.329 INFO kablam! 107 | fn add(one: &Map, two: &Map) -> Map {
Oct 12 16:54:03.329 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.329 INFO kablam! 
Oct 12 16:54:03.329 INFO kablam! warning: function is never used: `negate`
Oct 12 16:54:03.329 INFO kablam!    --> src/main.rs:117:1
Oct 12 16:54:03.329 INFO kablam!     |
Oct 12 16:54:03.329 INFO kablam! 117 | fn negate(mat: &Map) -> Map {
Oct 12 16:54:03.329 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.329 INFO kablam! 
Oct 12 16:54:03.329 INFO kablam! warning: function is never used: `subtract`
Oct 12 16:54:03.329 INFO kablam!    --> src/main.rs:127:1
Oct 12 16:54:03.329 INFO kablam!     |
Oct 12 16:54:03.329 INFO kablam! 127 | fn subtract(one: &Map, two: &Map) -> Map {
Oct 12 16:54:03.330 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.330 INFO kablam! 
Oct 12 16:54:03.330 INFO kablam! warning: function is never used: `identity`
Oct 12 16:54:03.330 INFO kablam!    --> src/main.rs:131:1
Oct 12 16:54:03.330 INFO kablam!     |
Oct 12 16:54:03.330 INFO kablam! 131 | fn identity() -> Map {
Oct 12 16:54:03.330 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.330 INFO kablam! 
Oct 12 16:54:03.330 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 16:54:03.330 INFO kablam!    --> src/main.rs:157:5
Oct 12 16:54:03.330 INFO kablam!     |
Oct 12 16:54:03.330 INFO kablam! 157 |     create_dir_all(directory);
Oct 12 16:54:03.330 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.330 INFO kablam!     |
Oct 12 16:54:03.331 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 12 16:54:03.331 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 16:54:03.331 INFO kablam! 
Oct 12 16:54:03.450 INFO kablam! warning: function is never used: `print_map`
Oct 12 16:54:03.450 INFO kablam!   --> src/main.rs:65:1
Oct 12 16:54:03.450 INFO kablam!    |
Oct 12 16:54:03.451 INFO kablam! 65 | fn print_map(map: &Map) {
Oct 12 16:54:03.451 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.451 INFO kablam!    |
Oct 12 16:54:03.451 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 16:54:03.451 INFO kablam! 
Oct 12 16:54:03.451 INFO kablam! warning: function is never used: `add`
Oct 12 16:54:03.451 INFO kablam!    --> src/main.rs:107:1
Oct 12 16:54:03.451 INFO kablam!     |
Oct 12 16:54:03.451 INFO kablam! 107 | fn add(one: &Map, two: &Map) -> Map {
Oct 12 16:54:03.451 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.451 INFO kablam! 
Oct 12 16:54:03.451 INFO kablam! warning: function is never used: `negate`
Oct 12 16:54:03.451 INFO kablam!    --> src/main.rs:117:1
Oct 12 16:54:03.451 INFO kablam!     |
Oct 12 16:54:03.451 INFO kablam! 117 | fn negate(mat: &Map) -> Map {
Oct 12 16:54:03.451 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.451 INFO kablam! 
Oct 12 16:54:03.451 INFO kablam! warning: function is never used: `subtract`
Oct 12 16:54:03.451 INFO kablam!    --> src/main.rs:127:1
Oct 12 16:54:03.451 INFO kablam!     |
Oct 12 16:54:03.451 INFO kablam! 127 | fn subtract(one: &Map, two: &Map) -> Map {
Oct 12 16:54:03.451 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.451 INFO kablam! 
Oct 12 16:54:03.451 INFO kablam! warning: function is never used: `identity`
Oct 12 16:54:03.451 INFO kablam!    --> src/main.rs:131:1
Oct 12 16:54:03.451 INFO kablam!     |
Oct 12 16:54:03.451 INFO kablam! 131 | fn identity() -> Map {
Oct 12 16:54:03.451 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.451 INFO kablam! 
Oct 12 16:54:03.451 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 16:54:03.451 INFO kablam!    --> src/main.rs:157:5
Oct 12 16:54:03.451 INFO kablam!     |
Oct 12 16:54:03.451 INFO kablam! 157 |     create_dir_all(directory);
Oct 12 16:54:03.451 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:54:03.451 INFO kablam!     |
Oct 12 16:54:03.452 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 12 16:54:03.452 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 16:54:03.452 INFO kablam! 
Oct 12 16:54:03.479 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 21.45s
Oct 12 16:54:03.485 INFO kablam! su: No module specific data is present
Oct 12 16:54:05.001 INFO running `"docker" "rm" "-f" "a0682d5ec5841dc518af022b3d0ef075c575e9cfc5afb74172466813eb5f92cb"`
Oct 12 16:54:05.264 INFO blam! a0682d5ec5841dc518af022b3d0ef075c575e9cfc5afb74172466813eb5f92cb