Nov 29 23:29:33.060 INFO checking lesguillemets/effective-fortnight against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 23:29:33.060 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 23:29:33.559 INFO [stdout] 438a87c9b45b7faa7d80bccf85ca5ea5ff8fe61e6b61b8b5b203d55677ded16c
Nov 29 23:29:33.561 INFO running `"docker" "start" "-a" "438a87c9b45b7faa7d80bccf85ca5ea5ff8fe61e6b61b8b5b203d55677ded16c"`
Nov 29 23:29:35.268 INFO [stderr] usermod: no changes
Nov 29 23:29:35.430 INFO [stderr]     Checking image v0.12.3
Nov 29 23:29:39.556 INFO [stderr]     Checking colourful-converter v0.1.0 (/source)
Nov 29 23:29:40.688 INFO [stderr] warning: unused imports: `ColorType`, `Rgb`
Nov 29 23:29:40.688 INFO [stderr]  --> src/decode.rs:4:13
Nov 29 23:29:40.688 INFO [stderr]   |
Nov 29 23:29:40.688 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Nov 29 23:29:40.688 INFO [stderr]   |             ^^^^^^^^^  ^^^
Nov 29 23:29:40.688 INFO [stderr]   |
Nov 29 23:29:40.688 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 23:29:40.688 INFO [stderr] 
Nov 29 23:29:40.688 INFO [stderr] warning: doc comment not used by rustdoc
Nov 29 23:29:40.688 INFO [stderr]   --> src/main.rs:19:5
Nov 29 23:29:40.688 INFO [stderr]    |
Nov 29 23:29:40.688 INFO [stderr] 19 |     /// decode the encoded file to validate
Nov 29 23:29:40.688 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:29:40.688 INFO [stderr]    |
Nov 29 23:29:40.688 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Nov 29 23:29:40.688 INFO [stderr] 
Nov 29 23:29:40.772 INFO [stderr] warning: unused import: `GenericImage`
Nov 29 23:29:40.772 INFO [stderr]  --> src/decode.rs:3:13
Nov 29 23:29:40.772 INFO [stderr]   |
Nov 29 23:29:40.772 INFO [stderr] 3 | use image::{GenericImage, ImageDecoder};
Nov 29 23:29:40.772 INFO [stderr]   |             ^^^^^^^^^^^^
Nov 29 23:29:40.772 INFO [stderr] 
Nov 29 23:29:40.772 INFO [stderr] warning: unused import: `Pixel`
Nov 29 23:29:40.772 INFO [stderr]  --> src/decode.rs:4:29
Nov 29 23:29:40.772 INFO [stderr]   |
Nov 29 23:29:40.772 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Nov 29 23:29:40.772 INFO [stderr]   |                             ^^^^^
Nov 29 23:29:40.772 INFO [stderr] 
Nov 29 23:29:40.776 INFO [stderr] warning: unused variable: `w`
Nov 29 23:29:40.776 INFO [stderr]   --> src/decode.rs:11:10
Nov 29 23:29:40.776 INFO [stderr]    |
Nov 29 23:29:40.776 INFO [stderr] 11 |     let (w, h) = decoder.dimensions().expect("cannot get file dimensions");
Nov 29 23:29:40.776 INFO [stderr]    |          ^ help: consider using `_w` instead
Nov 29 23:29:40.776 INFO [stderr]    |
Nov 29 23:29:40.776 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 23:29:40.776 INFO [stderr] 
Nov 29 23:29:40.776 INFO [stderr] warning: unused variable: `i`
Nov 29 23:29:40.776 INFO [stderr]   --> src/decode.rs:73:60
Nov 29 23:29:40.776 INFO [stderr]    |
Nov 29 23:29:40.776 INFO [stderr] 73 |     let mut x = header.chunks(3).enumerate().skip_while(|&(i, p)| is_empty(p));
Nov 29 23:29:40.776 INFO [stderr]    |                                                            ^ help: consider using `_i` instead
Nov 29 23:29:40.776 INFO [stderr] 
Nov 29 23:29:40.788 INFO [stderr] warning: variable does not need to be mutable
Nov 29 23:29:40.788 INFO [stderr]   --> src/main.rs:29:9
Nov 29 23:29:40.788 INFO [stderr]    |
Nov 29 23:29:40.788 INFO [stderr] 29 |     let mut outf = &mut File::create(&Path::new(to_file)).expect("fileerror");
Nov 29 23:29:40.788 INFO [stderr]    |         ----^^^^
Nov 29 23:29:40.788 INFO [stderr]    |         |
Nov 29 23:29:40.788 INFO [stderr]    |         help: remove this `mut`
Nov 29 23:29:40.788 INFO [stderr]    |
Nov 29 23:29:40.788 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 23:29:40.788 INFO [stderr] 
Nov 29 23:29:40.800 INFO [stderr] warning: variable does not need to be mutable
Nov 29 23:29:40.800 INFO [stderr]   --> src/decode.rs:46:9
Nov 29 23:29:40.800 INFO [stderr]    |
Nov 29 23:29:40.800 INFO [stderr] 46 |     let mut header = body.next().expect("empty body");
Nov 29 23:29:40.800 INFO [stderr]    |         ----^^^^^^
Nov 29 23:29:40.800 INFO [stderr]    |         |
Nov 29 23:29:40.800 INFO [stderr]    |         help: remove this `mut`
Nov 29 23:29:40.800 INFO [stderr] 
Nov 29 23:29:40.807 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:29:40.807 INFO [stderr]   --> src/main.rs:22:5
Nov 29 23:29:40.807 INFO [stderr]    |
Nov 29 23:29:40.807 INFO [stderr] 22 |     test.write(&decode_file("out.png"));
Nov 29 23:29:40.807 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:29:40.808 INFO [stderr]    |
Nov 29 23:29:40.808 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 23:29:40.808 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:29:40.808 INFO [stderr] 
Nov 29 23:29:40.808 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:29:40.808 INFO [stderr]   --> src/main.rs:30:5
Nov 29 23:29:40.808 INFO [stderr]    |
Nov 29 23:29:40.808 INFO [stderr] 30 |     image::ImageRgb8(imgbuf).save(outf, image::PNG);
Nov 29 23:29:40.808 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:29:40.808 INFO [stderr]    |
Nov 29 23:29:40.808 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:29:40.808 INFO [stderr] 
Nov 29 23:29:41.072 INFO [stderr] warning: unused imports: `ColorType`, `Rgb`
Nov 29 23:29:41.072 INFO [stderr]  --> src/decode.rs:4:13
Nov 29 23:29:41.072 INFO [stderr]   |
Nov 29 23:29:41.072 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Nov 29 23:29:41.072 INFO [stderr]   |             ^^^^^^^^^  ^^^
Nov 29 23:29:41.072 INFO [stderr]   |
Nov 29 23:29:41.072 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 23:29:41.072 INFO [stderr] 
Nov 29 23:29:41.072 INFO [stderr] warning: doc comment not used by rustdoc
Nov 29 23:29:41.072 INFO [stderr]   --> src/main.rs:19:5
Nov 29 23:29:41.072 INFO [stderr]    |
Nov 29 23:29:41.072 INFO [stderr] 19 |     /// decode the encoded file to validate
Nov 29 23:29:41.072 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:29:41.072 INFO [stderr]    |
Nov 29 23:29:41.072 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Nov 29 23:29:41.072 INFO [stderr] 
Nov 29 23:29:41.148 INFO [stderr] warning: unused import: `GenericImage`
Nov 29 23:29:41.148 INFO [stderr]  --> src/decode.rs:3:13
Nov 29 23:29:41.148 INFO [stderr]   |
Nov 29 23:29:41.148 INFO [stderr] 3 | use image::{GenericImage, ImageDecoder};
Nov 29 23:29:41.148 INFO [stderr]   |             ^^^^^^^^^^^^
Nov 29 23:29:41.148 INFO [stderr] 
Nov 29 23:29:41.148 INFO [stderr] warning: unused import: `Pixel`
Nov 29 23:29:41.148 INFO [stderr]  --> src/decode.rs:4:29
Nov 29 23:29:41.148 INFO [stderr]   |
Nov 29 23:29:41.148 INFO [stderr] 4 | use image::{ColorType, Rgb, Pixel};
Nov 29 23:29:41.148 INFO [stderr]   |                             ^^^^^
Nov 29 23:29:41.148 INFO [stderr] 
Nov 29 23:29:41.152 INFO [stderr] warning: unused variable: `w`
Nov 29 23:29:41.152 INFO [stderr]   --> src/decode.rs:11:10
Nov 29 23:29:41.152 INFO [stderr]    |
Nov 29 23:29:41.152 INFO [stderr] 11 |     let (w, h) = decoder.dimensions().expect("cannot get file dimensions");
Nov 29 23:29:41.152 INFO [stderr]    |          ^ help: consider using `_w` instead
Nov 29 23:29:41.152 INFO [stderr]    |
Nov 29 23:29:41.152 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 23:29:41.152 INFO [stderr] 
Nov 29 23:29:41.152 INFO [stderr] warning: unused variable: `i`
Nov 29 23:29:41.152 INFO [stderr]   --> src/decode.rs:73:60
Nov 29 23:29:41.152 INFO [stderr]    |
Nov 29 23:29:41.152 INFO [stderr] 73 |     let mut x = header.chunks(3).enumerate().skip_while(|&(i, p)| is_empty(p));
Nov 29 23:29:41.152 INFO [stderr]    |                                                            ^ help: consider using `_i` instead
Nov 29 23:29:41.152 INFO [stderr] 
Nov 29 23:29:41.164 INFO [stderr] warning: variable does not need to be mutable
Nov 29 23:29:41.164 INFO [stderr]   --> src/main.rs:29:9
Nov 29 23:29:41.164 INFO [stderr]    |
Nov 29 23:29:41.164 INFO [stderr] 29 |     let mut outf = &mut File::create(&Path::new(to_file)).expect("fileerror");
Nov 29 23:29:41.164 INFO [stderr]    |         ----^^^^
Nov 29 23:29:41.164 INFO [stderr]    |         |
Nov 29 23:29:41.164 INFO [stderr]    |         help: remove this `mut`
Nov 29 23:29:41.164 INFO [stderr]    |
Nov 29 23:29:41.164 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 23:29:41.164 INFO [stderr] 
Nov 29 23:29:41.176 INFO [stderr] warning: variable does not need to be mutable
Nov 29 23:29:41.176 INFO [stderr]   --> src/decode.rs:46:9
Nov 29 23:29:41.176 INFO [stderr]    |
Nov 29 23:29:41.176 INFO [stderr] 46 |     let mut header = body.next().expect("empty body");
Nov 29 23:29:41.176 INFO [stderr]    |         ----^^^^^^
Nov 29 23:29:41.176 INFO [stderr]    |         |
Nov 29 23:29:41.176 INFO [stderr]    |         help: remove this `mut`
Nov 29 23:29:41.176 INFO [stderr] 
Nov 29 23:29:41.184 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:29:41.184 INFO [stderr]   --> src/main.rs:22:5
Nov 29 23:29:41.184 INFO [stderr]    |
Nov 29 23:29:41.184 INFO [stderr] 22 |     test.write(&decode_file("out.png"));
Nov 29 23:29:41.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:29:41.184 INFO [stderr]    |
Nov 29 23:29:41.184 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 23:29:41.184 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:29:41.184 INFO [stderr] 
Nov 29 23:29:41.184 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 23:29:41.184 INFO [stderr]   --> src/main.rs:30:5
Nov 29 23:29:41.184 INFO [stderr]    |
Nov 29 23:29:41.184 INFO [stderr] 30 |     image::ImageRgb8(imgbuf).save(outf, image::PNG);
Nov 29 23:29:41.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 23:29:41.184 INFO [stderr]    |
Nov 29 23:29:41.184 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 23:29:41.184 INFO [stderr] 
Nov 29 23:29:41.203 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.89s
Nov 29 23:29:41.228 INFO [stderr] su: No module specific data is present
Nov 29 23:29:42.429 INFO running `"docker" "inspect" "438a87c9b45b7faa7d80bccf85ca5ea5ff8fe61e6b61b8b5b203d55677ded16c"`
Nov 29 23:29:42.758 INFO running `"docker" "rm" "-f" "438a87c9b45b7faa7d80bccf85ca5ea5ff8fe61e6b61b8b5b203d55677ded16c"`
Nov 29 23:29:43.008 INFO [stdout] 438a87c9b45b7faa7d80bccf85ca5ea5ff8fe61e6b61b8b5b203d55677ded16c