Nov 02 17:15:27.423 INFO checking boustrophedon/png-concealer against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 17:15:27.425 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-3/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 17:15:27.929 INFO blam! 6c8ecb77e517972f53028d4d85f2b836de4af12cb7df8a071c184ac85358f8d3
Nov 02 17:15:27.934 INFO running `"docker" "start" "-a" "6c8ecb77e517972f53028d4d85f2b836de4af12cb7df8a071c184ac85358f8d3"`
Nov 02 17:15:29.272 INFO kablam! usermod: no changes
Nov 02 17:15:29.368 INFO kablam!    Compiling syn v0.13.10
Nov 02 17:15:40.145 INFO kablam!    Compiling structopt-derive v0.2.8
Nov 02 17:15:45.378 INFO kablam!     Checking structopt v0.2.8
Nov 02 17:15:46.304 INFO kablam!     Checking png-concealer v0.1.0 (/source)
Nov 02 17:15:48.260 INFO kablam! warning: unused `#[macro_use]` import
Nov 02 17:15:48.260 INFO kablam!  --> src/main.rs:5:1
Nov 02 17:15:48.260 INFO kablam!   |
Nov 02 17:15:48.260 INFO kablam! 5 | #[macro_use]
Nov 02 17:15:48.260 INFO kablam!   | ^^^^^^^^^^^^
Nov 02 17:15:48.260 INFO kablam!   |
Nov 02 17:15:48.260 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 17:15:48.260 INFO kablam! 
Nov 02 17:15:48.332 INFO kablam! warning: unused `#[macro_use]` import
Nov 02 17:15:48.332 INFO kablam!  --> src/main.rs:5:1
Nov 02 17:15:48.332 INFO kablam!   |
Nov 02 17:15:48.332 INFO kablam! 5 | #[macro_use]
Nov 02 17:15:48.332 INFO kablam!   | ^^^^^^^^^^^^
Nov 02 17:15:48.332 INFO kablam!   |
Nov 02 17:15:48.332 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 17:15:48.332 INFO kablam! 
Nov 02 17:15:48.481 INFO kablam! warning: unused variable: `input_png`
Nov 02 17:15:48.481 INFO kablam!    --> src/main.rs:109:16
Nov 02 17:15:48.481 INFO kablam!     |
Nov 02 17:15:48.482 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 02 17:15:48.482 INFO kablam!     |                ^^^^^^^^^ help: consider using `_input_png` instead
Nov 02 17:15:48.484 INFO kablam!     |
Nov 02 17:15:48.484 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 02 17:15:48.484 INFO kablam! 
Nov 02 17:15:48.484 INFO kablam! warning: unused variable: `output`
Nov 02 17:15:48.484 INFO kablam!    --> src/main.rs:109:36
Nov 02 17:15:48.484 INFO kablam!     |
Nov 02 17:15:48.484 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 02 17:15:48.484 INFO kablam!     |                                    ^^^^^^ help: consider using `_output` instead
Nov 02 17:15:48.484 INFO kablam! 
Nov 02 17:15:48.516 INFO kablam! warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Nov 02 17:15:48.516 INFO kablam!   --> src/main.rs:51:5
Nov 02 17:15:48.516 INFO kablam!    |
Nov 02 17:15:48.516 INFO kablam! 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Nov 02 17:15:48.516 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 17:15:48.516 INFO kablam!    |
Nov 02 17:15:48.516 INFO kablam!    = note: #[warn(non_upper_case_globals)] on by default
Nov 02 17:15:48.516 INFO kablam! 
Nov 02 17:15:48.536 INFO kablam! warning: unused variable: `input_png`
Nov 02 17:15:48.536 INFO kablam!    --> src/main.rs:109:16
Nov 02 17:15:48.536 INFO kablam!     |
Nov 02 17:15:48.536 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 02 17:15:48.536 INFO kablam!     |                ^^^^^^^^^ help: consider using `_input_png` instead
Nov 02 17:15:48.536 INFO kablam!     |
Nov 02 17:15:48.537 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 02 17:15:48.541 INFO kablam! 
Nov 02 17:15:48.541 INFO kablam! warning: unused variable: `output`
Nov 02 17:15:48.541 INFO kablam!    --> src/main.rs:109:36
Nov 02 17:15:48.541 INFO kablam!     |
Nov 02 17:15:48.542 INFO kablam! 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Nov 02 17:15:48.542 INFO kablam!     |                                    ^^^^^^ help: consider using `_output` instead
Nov 02 17:15:48.542 INFO kablam! 
Nov 02 17:15:48.576 INFO kablam! warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Nov 02 17:15:48.576 INFO kablam!   --> src/main.rs:51:5
Nov 02 17:15:48.576 INFO kablam!    |
Nov 02 17:15:48.576 INFO kablam! 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Nov 02 17:15:48.576 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 17:15:48.580 INFO kablam!    |
Nov 02 17:15:48.580 INFO kablam!    = note: #[warn(non_upper_case_globals)] on by default
Nov 02 17:15:48.580 INFO kablam! 
Nov 02 17:15:48.640 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 19.34s
Nov 02 17:15:48.643 INFO kablam! su: No module specific data is present
Nov 02 17:15:49.224 INFO running `"docker" "rm" "-f" "6c8ecb77e517972f53028d4d85f2b836de4af12cb7df8a071c184ac85358f8d3"`
Nov 02 17:15:49.416 INFO blam! 6c8ecb77e517972f53028d4d85f2b836de4af12cb7df8a071c184ac85358f8d3