Oct 27 07:23:17.824 INFO checking boustrophedon/png-concealer against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 07:23:17.826 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-3/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 27 07:23:18.171 INFO blam! e6155c99580edbc4887efeac2204a1cc1603f0d86203e51faccf15cd7c95411c
Oct 27 07:23:18.173 INFO running `"docker" "start" "-a" "e6155c99580edbc4887efeac2204a1cc1603f0d86203e51faccf15cd7c95411c"`
Oct 27 07:23:19.907 INFO kablam! usermod: no changes
Oct 27 07:23:19.994 INFO kablam!    Compiling syn v0.13.10
Oct 27 07:23:30.397 INFO kablam!    Compiling structopt-derive v0.2.8
Oct 27 07:23:35.762 INFO kablam!     Checking structopt v0.2.8
Oct 27 07:23:36.576 INFO kablam!     Checking png-concealer v0.1.0 (/source)
Oct 27 07:23:38.238 INFO kablam! warning: unused `#[macro_use]` import
Oct 27 07:23:38.238 INFO kablam!  --> src/main.rs:5:1
Oct 27 07:23:38.239 INFO kablam!   |
Oct 27 07:23:38.239 INFO kablam! 5 | #[macro_use]
Oct 27 07:23:38.239 INFO kablam!   | ^^^^^^^^^^^^
Oct 27 07:23:38.239 INFO kablam!   |
Oct 27 07:23:38.240 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 07:23:38.240 INFO kablam! 
Oct 27 07:23:38.335 INFO kablam! warning: unused `#[macro_use]` import
Oct 27 07:23:38.335 INFO kablam!  --> src/main.rs:5:1
Oct 27 07:23:38.335 INFO kablam!   |
Oct 27 07:23:38.335 INFO kablam! 5 | #[macro_use]
Oct 27 07:23:38.335 INFO kablam!   | ^^^^^^^^^^^^
Oct 27 07:23:38.335 INFO kablam!   |
Oct 27 07:23:38.335 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 07:23:38.335 INFO kablam! 
Oct 27 07:23:38.459 INFO kablam! warning: unused variable: `input_png`
Oct 27 07:23:38.459 INFO kablam!    --> src/main.rs:109:16
Oct 27 07:23:38.459 INFO kablam!     |
Oct 27 07:23:38.459 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Oct 27 07:23:38.459 INFO kablam!     |                ^^^^^^^^^ help: consider using `_input_png` instead
Oct 27 07:23:38.460 INFO kablam!     |
Oct 27 07:23:38.460 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 27 07:23:38.460 INFO kablam! 
Oct 27 07:23:38.460 INFO kablam! warning: unused variable: `output`
Oct 27 07:23:38.460 INFO kablam!    --> src/main.rs:109:36
Oct 27 07:23:38.460 INFO kablam!     |
Oct 27 07:23:38.460 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Oct 27 07:23:38.460 INFO kablam!     |                                    ^^^^^^ help: consider using `_output` instead
Oct 27 07:23:38.460 INFO kablam! 
Oct 27 07:23:38.492 INFO kablam! warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Oct 27 07:23:38.492 INFO kablam!   --> src/main.rs:51:5
Oct 27 07:23:38.492 INFO kablam!    |
Oct 27 07:23:38.492 INFO kablam! 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Oct 27 07:23:38.492 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 07:23:38.492 INFO kablam!    |
Oct 27 07:23:38.492 INFO kablam!    = note: #[warn(non_upper_case_globals)] on by default
Oct 27 07:23:38.492 INFO kablam! 
Oct 27 07:23:38.524 INFO kablam! warning: unused variable: `input_png`
Oct 27 07:23:38.524 INFO kablam!    --> src/main.rs:109:16
Oct 27 07:23:38.524 INFO kablam!     |
Oct 27 07:23:38.524 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Oct 27 07:23:38.524 INFO kablam!     |                ^^^^^^^^^ help: consider using `_input_png` instead
Oct 27 07:23:38.525 INFO kablam!     |
Oct 27 07:23:38.525 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 27 07:23:38.525 INFO kablam! 
Oct 27 07:23:38.525 INFO kablam! warning: unused variable: `output`
Oct 27 07:23:38.525 INFO kablam!    --> src/main.rs:109:36
Oct 27 07:23:38.525 INFO kablam!     |
Oct 27 07:23:38.525 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Oct 27 07:23:38.525 INFO kablam!     |                                    ^^^^^^ help: consider using `_output` instead
Oct 27 07:23:38.525 INFO kablam! 
Oct 27 07:23:38.550 INFO kablam! warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Oct 27 07:23:38.551 INFO kablam!   --> src/main.rs:51:5
Oct 27 07:23:38.551 INFO kablam!    |
Oct 27 07:23:38.551 INFO kablam! 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Oct 27 07:23:38.551 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 07:23:38.551 INFO kablam!    |
Oct 27 07:23:38.551 INFO kablam!    = note: #[warn(non_upper_case_globals)] on by default
Oct 27 07:23:38.551 INFO kablam! 
Oct 27 07:23:38.599 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 18.67s
Oct 27 07:23:38.604 INFO kablam! su: No module specific data is present
Oct 27 07:23:40.121 INFO running `"docker" "rm" "-f" "e6155c99580edbc4887efeac2204a1cc1603f0d86203e51faccf15cd7c95411c"`
Oct 27 07:23:40.359 INFO blam! e6155c99580edbc4887efeac2204a1cc1603f0d86203e51faccf15cd7c95411c