Dec 04 15:15:21.608 INFO checking lesguillemets/effective-fortnight against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 15:15:21.608 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 15:15:22.064 INFO [stdout] 7f623f693c1f9e65472d8f01197c810b1257462f2e0fbda7fb0b2d051b5b6653
Dec 04 15:15:22.066 INFO running `"docker" "start" "-a" "7f623f693c1f9e65472d8f01197c810b1257462f2e0fbda7fb0b2d051b5b6653"`
Dec 04 15:15:23.159 INFO [stderr] usermod: no changes
Dec 04 15:15:23.311 INFO [stderr]     Checking image v0.12.3
Dec 04 15:15:27.091 INFO [stderr]     Checking colourful-converter v0.1.0 (/source)
Dec 04 15:15:28.043 INFO [stderr] warning: unused imports: `ColorType`, `Rgb`
Dec 04 15:15:28.043 INFO [stderr]  --> src/decode.rs:4:13
Dec 04 15:15:28.043 INFO [stderr]   |
Dec 04 15:15:28.043 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Dec 04 15:15:28.043 INFO [stderr]   |             ^^^^^^^^^  ^^^
Dec 04 15:15:28.043 INFO [stderr]   |
Dec 04 15:15:28.043 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 15:15:28.043 INFO [stderr] 
Dec 04 15:15:28.043 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 15:15:28.043 INFO [stderr]   --> src/main.rs:19:5
Dec 04 15:15:28.043 INFO [stderr]    |
Dec 04 15:15:28.043 INFO [stderr] 19 |     /// decode the encoded file to validate
Dec 04 15:15:28.043 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:15:28.043 INFO [stderr]    |
Dec 04 15:15:28.043 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 04 15:15:28.043 INFO [stderr] 
Dec 04 15:15:28.091 INFO [stderr] warning: unused imports: `ColorType`, `Rgb`
Dec 04 15:15:28.091 INFO [stderr]  --> src/decode.rs:4:13
Dec 04 15:15:28.091 INFO [stderr]   |
Dec 04 15:15:28.091 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Dec 04 15:15:28.091 INFO [stderr]   |             ^^^^^^^^^  ^^^
Dec 04 15:15:28.091 INFO [stderr]   |
Dec 04 15:15:28.091 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 15:15:28.091 INFO [stderr] 
Dec 04 15:15:28.091 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 15:15:28.091 INFO [stderr]   --> src/main.rs:19:5
Dec 04 15:15:28.091 INFO [stderr]    |
Dec 04 15:15:28.091 INFO [stderr] 19 |     /// decode the encoded file to validate
Dec 04 15:15:28.091 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:15:28.091 INFO [stderr]    |
Dec 04 15:15:28.091 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 04 15:15:28.091 INFO [stderr] 
Dec 04 15:15:28.127 INFO [stderr] warning: unused import: `GenericImage`
Dec 04 15:15:28.127 INFO [stderr]  --> src/decode.rs:3:13
Dec 04 15:15:28.127 INFO [stderr]   |
Dec 04 15:15:28.127 INFO [stderr] 3 | use image::{GenericImage, ImageDecoder};
Dec 04 15:15:28.127 INFO [stderr]   |             ^^^^^^^^^^^^
Dec 04 15:15:28.127 INFO [stderr] 
Dec 04 15:15:28.127 INFO [stderr] warning: unused import: `Pixel`
Dec 04 15:15:28.127 INFO [stderr]  --> src/decode.rs:4:29
Dec 04 15:15:28.127 INFO [stderr]   |
Dec 04 15:15:28.127 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Dec 04 15:15:28.127 INFO [stderr]   |                             ^^^^^
Dec 04 15:15:28.127 INFO [stderr] 
Dec 04 15:15:28.127 INFO [stderr] warning: unused variable: `w`
Dec 04 15:15:28.127 INFO [stderr]   --> src/decode.rs:11:10
Dec 04 15:15:28.127 INFO [stderr]    |
Dec 04 15:15:28.127 INFO [stderr] 11 |     let (w, h) = decoder.dimensions().expect("cannot get file dimensions");
Dec 04 15:15:28.127 INFO [stderr]    |          ^ help: consider using `_w` instead
Dec 04 15:15:28.127 INFO [stderr]    |
Dec 04 15:15:28.127 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 15:15:28.127 INFO [stderr] 
Dec 04 15:15:28.127 INFO [stderr] warning: unused variable: `i`
Dec 04 15:15:28.127 INFO [stderr]   --> src/decode.rs:73:60
Dec 04 15:15:28.127 INFO [stderr]    |
Dec 04 15:15:28.127 INFO [stderr] 73 |     let mut x = header.chunks(3).enumerate().skip_while(|&(i, p)| is_empty(p));
Dec 04 15:15:28.127 INFO [stderr]    |                                                            ^ help: consider using `_i` instead
Dec 04 15:15:28.127 INFO [stderr] 
Dec 04 15:15:28.131 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:15:28.131 INFO [stderr]   --> src/main.rs:29:9
Dec 04 15:15:28.131 INFO [stderr]    |
Dec 04 15:15:28.131 INFO [stderr] 29 |     let mut outf = &mut File::create(&Path::new(to_file)).expect("fileerror");
Dec 04 15:15:28.131 INFO [stderr]    |         ----^^^^
Dec 04 15:15:28.131 INFO [stderr]    |         |
Dec 04 15:15:28.131 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:15:28.131 INFO [stderr]    |
Dec 04 15:15:28.131 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 15:15:28.131 INFO [stderr] 
Dec 04 15:15:28.143 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:15:28.143 INFO [stderr]   --> src/decode.rs:46:9
Dec 04 15:15:28.143 INFO [stderr]    |
Dec 04 15:15:28.143 INFO [stderr] 46 |     let mut header = body.next().expect("empty body");
Dec 04 15:15:28.143 INFO [stderr]    |         ----^^^^^^
Dec 04 15:15:28.143 INFO [stderr]    |         |
Dec 04 15:15:28.143 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:15:28.143 INFO [stderr] 
Dec 04 15:15:28.150 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:15:28.150 INFO [stderr]   --> src/main.rs:22:5
Dec 04 15:15:28.150 INFO [stderr]    |
Dec 04 15:15:28.151 INFO [stderr] 22 |     test.write(&decode_file("out.png"));
Dec 04 15:15:28.151 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:15:28.151 INFO [stderr]    |
Dec 04 15:15:28.151 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 15:15:28.151 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:15:28.151 INFO [stderr] 
Dec 04 15:15:28.151 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:15:28.151 INFO [stderr]   --> src/main.rs:30:5
Dec 04 15:15:28.151 INFO [stderr]    |
Dec 04 15:15:28.151 INFO [stderr] 30 |     image::ImageRgb8(imgbuf).save(outf, image::PNG);
Dec 04 15:15:28.151 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:15:28.151 INFO [stderr]    |
Dec 04 15:15:28.151 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:15:28.151 INFO [stderr] 
Dec 04 15:15:28.171 INFO [stderr] warning: unused import: `GenericImage`
Dec 04 15:15:28.171 INFO [stderr]  --> src/decode.rs:3:13
Dec 04 15:15:28.171 INFO [stderr]   |
Dec 04 15:15:28.171 INFO [stderr] 3 | use image::{GenericImage, ImageDecoder};
Dec 04 15:15:28.171 INFO [stderr]   |             ^^^^^^^^^^^^
Dec 04 15:15:28.171 INFO [stderr] 
Dec 04 15:15:28.171 INFO [stderr] warning: unused import: `Pixel`
Dec 04 15:15:28.171 INFO [stderr]  --> src/decode.rs:4:29
Dec 04 15:15:28.171 INFO [stderr]   |
Dec 04 15:15:28.171 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Dec 04 15:15:28.171 INFO [stderr]   |                             ^^^^^
Dec 04 15:15:28.171 INFO [stderr] 
Dec 04 15:15:28.179 INFO [stderr] warning: unused variable: `w`
Dec 04 15:15:28.179 INFO [stderr]   --> src/decode.rs:11:10
Dec 04 15:15:28.179 INFO [stderr]    |
Dec 04 15:15:28.179 INFO [stderr] 11 |     let (w, h) = decoder.dimensions().expect("cannot get file dimensions");
Dec 04 15:15:28.179 INFO [stderr]    |          ^ help: consider using `_w` instead
Dec 04 15:15:28.179 INFO [stderr]    |
Dec 04 15:15:28.179 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 15:15:28.179 INFO [stderr] 
Dec 04 15:15:28.179 INFO [stderr] warning: unused variable: `i`
Dec 04 15:15:28.179 INFO [stderr]   --> src/decode.rs:73:60
Dec 04 15:15:28.179 INFO [stderr]    |
Dec 04 15:15:28.179 INFO [stderr] 73 |     let mut x = header.chunks(3).enumerate().skip_while(|&(i, p)| is_empty(p));
Dec 04 15:15:28.179 INFO [stderr]    |                                                            ^ help: consider using `_i` instead
Dec 04 15:15:28.179 INFO [stderr] 
Dec 04 15:15:28.183 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:15:28.183 INFO [stderr]   --> src/main.rs:29:9
Dec 04 15:15:28.183 INFO [stderr]    |
Dec 04 15:15:28.183 INFO [stderr] 29 |     let mut outf = &mut File::create(&Path::new(to_file)).expect("fileerror");
Dec 04 15:15:28.183 INFO [stderr]    |         ----^^^^
Dec 04 15:15:28.183 INFO [stderr]    |         |
Dec 04 15:15:28.183 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:15:28.183 INFO [stderr]    |
Dec 04 15:15:28.183 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 15:15:28.183 INFO [stderr] 
Dec 04 15:15:28.200 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:15:28.200 INFO [stderr]   --> src/decode.rs:46:9
Dec 04 15:15:28.200 INFO [stderr]    |
Dec 04 15:15:28.200 INFO [stderr] 46 |     let mut header = body.next().expect("empty body");
Dec 04 15:15:28.200 INFO [stderr]    |         ----^^^^^^
Dec 04 15:15:28.200 INFO [stderr]    |         |
Dec 04 15:15:28.200 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:15:28.200 INFO [stderr] 
Dec 04 15:15:28.216 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:15:28.216 INFO [stderr]   --> src/main.rs:22:5
Dec 04 15:15:28.216 INFO [stderr]    |
Dec 04 15:15:28.216 INFO [stderr] 22 |     test.write(&decode_file("out.png"));
Dec 04 15:15:28.216 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:15:28.216 INFO [stderr]    |
Dec 04 15:15:28.216 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 15:15:28.216 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:15:28.216 INFO [stderr] 
Dec 04 15:15:28.216 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:15:28.216 INFO [stderr]   --> src/main.rs:30:5
Dec 04 15:15:28.216 INFO [stderr]    |
Dec 04 15:15:28.216 INFO [stderr] 30 |     image::ImageRgb8(imgbuf).save(outf, image::PNG);
Dec 04 15:15:28.216 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:15:28.216 INFO [stderr]    |
Dec 04 15:15:28.216 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:15:28.216 INFO [stderr] 
Dec 04 15:15:28.239 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.06s
Dec 04 15:15:28.241 INFO [stderr] su: No module specific data is present
Dec 04 15:15:28.637 INFO running `"docker" "inspect" "7f623f693c1f9e65472d8f01197c810b1257462f2e0fbda7fb0b2d051b5b6653"`
Dec 04 15:15:28.896 INFO running `"docker" "rm" "-f" "7f623f693c1f9e65472d8f01197c810b1257462f2e0fbda7fb0b2d051b5b6653"`
Dec 04 15:15:29.032 INFO [stdout] 7f623f693c1f9e65472d8f01197c810b1257462f2e0fbda7fb0b2d051b5b6653