Dec 14 00:55:55.232 INFO testing boustrophedon/png-concealer against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 00:55:55.232 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 00:55:55.799 INFO [stdout] f79229705b6d7653f6516dff332a054a26838a7cfc8bd518a2d47323136e9dca
Dec 14 00:55:55.799 INFO running `"docker" "start" "-a" "f79229705b6d7653f6516dff332a054a26838a7cfc8bd518a2d47323136e9dca"`
Dec 14 00:55:57.151 INFO [stderr] usermod: no changes
Dec 14 00:55:57.283 INFO [stderr]    Compiling syn v0.13.10
Dec 14 00:56:05.599 INFO [stderr]    Compiling structopt-derive v0.2.8
Dec 14 00:56:08.862 INFO [stderr]    Compiling structopt v0.2.8
Dec 14 00:56:09.814 INFO [stderr]    Compiling png-concealer v0.1.0 (/source)
Dec 14 00:56:11.003 INFO [stderr] warning: unused `#[macro_use]` import
Dec 14 00:56:11.003 INFO [stderr]  --> src/main.rs:5:1
Dec 14 00:56:11.003 INFO [stderr]   |
Dec 14 00:56:11.003 INFO [stderr] 5 | #[macro_use]
Dec 14 00:56:11.003 INFO [stderr]   | ^^^^^^^^^^^^
Dec 14 00:56:11.003 INFO [stderr]   |
Dec 14 00:56:11.003 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 00:56:11.003 INFO [stderr] 
Dec 14 00:56:11.103 INFO [stderr] warning: unused variable: `input_png`
Dec 14 00:56:11.103 INFO [stderr]    --> src/main.rs:109:16
Dec 14 00:56:11.103 INFO [stderr]     |
Dec 14 00:56:11.103 INFO [stderr] 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Dec 14 00:56:11.103 INFO [stderr]     |                ^^^^^^^^^ help: consider using `_input_png` instead
Dec 14 00:56:11.103 INFO [stderr]     |
Dec 14 00:56:11.103 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 14 00:56:11.103 INFO [stderr] 
Dec 14 00:56:11.103 INFO [stderr] warning: unused variable: `output`
Dec 14 00:56:11.103 INFO [stderr]    --> src/main.rs:109:36
Dec 14 00:56:11.103 INFO [stderr]     |
Dec 14 00:56:11.103 INFO [stderr] 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Dec 14 00:56:11.103 INFO [stderr]     |                                    ^^^^^^ help: consider using `_output` instead
Dec 14 00:56:11.103 INFO [stderr] 
Dec 14 00:56:11.127 INFO [stderr] warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Dec 14 00:56:11.127 INFO [stderr]   --> src/main.rs:51:5
Dec 14 00:56:11.127 INFO [stderr]    |
Dec 14 00:56:11.127 INFO [stderr] 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Dec 14 00:56:11.127 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:56:11.127 INFO [stderr]    |
Dec 14 00:56:11.127 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 14 00:56:11.127 INFO [stderr] 
Dec 14 00:56:12.485 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.31s
Dec 14 00:56:12.496 INFO [stderr] su: No module specific data is present
Dec 14 00:56:13.282 INFO running `"docker" "inspect" "f79229705b6d7653f6516dff332a054a26838a7cfc8bd518a2d47323136e9dca"`
Dec 14 00:56:13.530 INFO running `"docker" "rm" "-f" "f79229705b6d7653f6516dff332a054a26838a7cfc8bd518a2d47323136e9dca"`
Dec 14 00:56:13.775 INFO [stdout] f79229705b6d7653f6516dff332a054a26838a7cfc8bd518a2d47323136e9dca
Dec 14 00:56:13.778 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 00:56:14.234 INFO [stdout] 7bc09db2ccb085f304fa210efb3d4d7b1579703e47ca62486a7f8f49c8c08b09
Dec 14 00:56:14.236 INFO running `"docker" "start" "-a" "7bc09db2ccb085f304fa210efb3d4d7b1579703e47ca62486a7f8f49c8c08b09"`
Dec 14 00:56:15.436 INFO [stderr] usermod: no changes
Dec 14 00:56:15.535 INFO [stderr]    Compiling png-concealer v0.1.0 (/source)
Dec 14 00:56:16.516 INFO [stderr] warning: unused `#[macro_use]` import
Dec 14 00:56:16.516 INFO [stderr]  --> src/main.rs:5:1
Dec 14 00:56:16.516 INFO [stderr]   |
Dec 14 00:56:16.516 INFO [stderr] 5 | #[macro_use]
Dec 14 00:56:16.516 INFO [stderr]   | ^^^^^^^^^^^^
Dec 14 00:56:16.516 INFO [stderr]   |
Dec 14 00:56:16.519 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 00:56:16.519 INFO [stderr] 
Dec 14 00:56:16.623 INFO [stderr] warning: unused variable: `input_png`
Dec 14 00:56:16.623 INFO [stderr]    --> src/main.rs:109:16
Dec 14 00:56:16.623 INFO [stderr]     |
Dec 14 00:56:16.623 INFO [stderr] 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Dec 14 00:56:16.623 INFO [stderr]     |                ^^^^^^^^^ help: consider using `_input_png` instead
Dec 14 00:56:16.623 INFO [stderr]     |
Dec 14 00:56:16.623 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 14 00:56:16.623 INFO [stderr] 
Dec 14 00:56:16.623 INFO [stderr] warning: unused variable: `output`
Dec 14 00:56:16.623 INFO [stderr]    --> src/main.rs:109:36
Dec 14 00:56:16.623 INFO [stderr]     |
Dec 14 00:56:16.623 INFO [stderr] 109 | fn decode_file(input_png: PathBuf, output: PathBuf) {
Dec 14 00:56:16.623 INFO [stderr]     |                                    ^^^^^^ help: consider using `_output` instead
Dec 14 00:56:16.623 INFO [stderr] 
Dec 14 00:56:16.643 INFO [stderr] warning: constant `max_length` should have an upper case name such as `MAX_LENGTH`
Dec 14 00:56:16.643 INFO [stderr]   --> src/main.rs:51:5
Dec 14 00:56:16.643 INFO [stderr]    |
Dec 14 00:56:16.643 INFO [stderr] 51 |     const max_length: usize = (1<<31) - 1; // as defined in png spec
Dec 14 00:56:16.643 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:56:16.643 INFO [stderr]    |
Dec 14 00:56:16.643 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 14 00:56:16.643 INFO [stderr] 
Dec 14 00:56:17.003 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
Dec 14 00:56:17.006 INFO [stderr] su: No module specific data is present
Dec 14 00:56:17.878 INFO running `"docker" "inspect" "7bc09db2ccb085f304fa210efb3d4d7b1579703e47ca62486a7f8f49c8c08b09"`
Dec 14 00:56:18.077 INFO running `"docker" "rm" "-f" "7bc09db2ccb085f304fa210efb3d4d7b1579703e47ca62486a7f8f49c8c08b09"`
Dec 14 00:56:18.311 INFO [stdout] 7bc09db2ccb085f304fa210efb3d4d7b1579703e47ca62486a7f8f49c8c08b09
Dec 14 00:56:18.313 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 00:56:18.615 INFO [stdout] 44bc7e2266c14f9e7d402ec4524272028538c3989e40a09b72aff9834f8d2be7
Dec 14 00:56:18.617 INFO running `"docker" "start" "-a" "44bc7e2266c14f9e7d402ec4524272028538c3989e40a09b72aff9834f8d2be7"`
Dec 14 00:56:19.273 INFO [stderr] usermod: no changes
Dec 14 00:56:19.345 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 14 00:56:19.353 INFO [stderr]      Running /target/debug/deps/png_concealer-cd286e5eced082d0
Dec 14 00:56:19.359 INFO [stdout] 
Dec 14 00:56:19.359 INFO [stdout] running 0 tests
Dec 14 00:56:19.359 INFO [stdout] 
Dec 14 00:56:19.359 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 00:56:19.359 INFO [stdout] 
Dec 14 00:56:19.360 INFO [stderr] su: No module specific data is present
Dec 14 00:56:19.775 INFO running `"docker" "inspect" "44bc7e2266c14f9e7d402ec4524272028538c3989e40a09b72aff9834f8d2be7"`
Dec 14 00:56:19.995 INFO running `"docker" "rm" "-f" "44bc7e2266c14f9e7d402ec4524272028538c3989e40a09b72aff9834f8d2be7"`
Dec 14 00:56:20.167 INFO [stdout] 44bc7e2266c14f9e7d402ec4524272028538c3989e40a09b72aff9834f8d2be7