Dec 11 13:34:26.098 INFO checking minauteur/io-png against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:34:26.098 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 13:34:26.580 INFO [stdout] 06dba63e83b4435bd7d644b546e81a73783d83e0f6dfe2638dcf1fd32aa50d62
Dec 11 13:34:26.584 INFO running `"docker" "start" "-a" "06dba63e83b4435bd7d644b546e81a73783d83e0f6dfe2638dcf1fd32aa50d62"`
Dec 11 13:34:28.039 INFO [stderr] usermod: no changes
Dec 11 13:34:28.226 INFO [stderr]     Checking net2 v0.2.31
Dec 11 13:34:28.226 INFO [stderr]     Checking filetime v0.1.15
Dec 11 13:34:28.226 INFO [stderr]     Checking inotify v0.3.0
Dec 11 13:34:28.226 INFO [stderr]     Checking nix v0.5.1
Dec 11 13:34:28.234 INFO [stderr]     Checking jpeg-decoder v0.1.14
Dec 11 13:34:30.473 INFO [stderr]     Checking miow v0.1.5
Dec 11 13:34:31.844 INFO [stderr]     Checking image v0.18.0
Dec 11 13:34:34.552 INFO [stderr]     Checking mio v0.5.1
Dec 11 13:34:35.957 INFO [stderr]     Checking notify v4.0.3
Dec 11 13:34:38.512 INFO [stderr]     Checking io-png v0.1.0 (/source)
Dec 11 13:34:40.236 INFO [stderr] warning: unused import: `std::path::Path`
Dec 11 13:34:40.236 INFO [stderr]  --> src/main.rs:5:5
Dec 11 13:34:40.236 INFO [stderr]   |
Dec 11 13:34:40.236 INFO [stderr] 5 | use std::path::Path;
Dec 11 13:34:40.236 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:40.236 INFO [stderr]   |
Dec 11 13:34:40.237 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:34:40.237 INFO [stderr] 
Dec 11 13:34:40.237 INFO [stderr] warning: unused imports: `BufWriter`, `Write`
Dec 11 13:34:40.238 INFO [stderr]  --> src/main.rs:8:21
Dec 11 13:34:40.238 INFO [stderr]   |
Dec 11 13:34:40.238 INFO [stderr] 8 | use std::io::{Read, Write, BufReader, BufWriter};
Dec 11 13:34:40.238 INFO [stderr]   |                     ^^^^^             ^^^^^^^^^
Dec 11 13:34:40.238 INFO [stderr] 
Dec 11 13:34:40.238 INFO [stderr] warning: unused import: `std::ffi::OsStr`
Dec 11 13:34:40.238 INFO [stderr]  --> src/main.rs:9:5
Dec 11 13:34:40.238 INFO [stderr]   |
Dec 11 13:34:40.238 INFO [stderr] 9 | use std::ffi::OsStr;
Dec 11 13:34:40.238 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:40.238 INFO [stderr] 
Dec 11 13:34:40.238 INFO [stderr] warning: unused import: `image::png`
Dec 11 13:34:40.238 INFO [stderr]   --> src/main.rs:12:5
Dec 11 13:34:40.238 INFO [stderr]    |
Dec 11 13:34:40.238 INFO [stderr] 12 | use image::png;
Dec 11 13:34:40.238 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 13:34:40.238 INFO [stderr] 
Dec 11 13:34:40.238 INFO [stderr] warning: unused import: `image::gif::Encoder`
Dec 11 13:34:40.238 INFO [stderr]   --> src/main.rs:13:5
Dec 11 13:34:40.238 INFO [stderr]    |
Dec 11 13:34:40.238 INFO [stderr] 13 | use image::gif::Encoder;
Dec 11 13:34:40.238 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:40.238 INFO [stderr] 
Dec 11 13:34:40.238 INFO [stderr] warning: unused imports: `ImageBuffer`, `Rgb`, `save_buffer`
Dec 11 13:34:40.238 INFO [stderr]   --> src/main.rs:14:13
Dec 11 13:34:40.238 INFO [stderr]    |
Dec 11 13:34:40.238 INFO [stderr] 14 | use image::{save_buffer, ImageBuffer, ColorType, Rgb};
Dec 11 13:34:40.238 INFO [stderr]    |             ^^^^^^^^^^^  ^^^^^^^^^^^             ^^^
Dec 11 13:34:40.238 INFO [stderr] 
Dec 11 13:34:40.335 INFO [stderr] warning: constant item is never used: `WIDTH`
Dec 11 13:34:40.335 INFO [stderr]   --> src/main.rs:21:1
Dec 11 13:34:40.335 INFO [stderr]    |
Dec 11 13:34:40.336 INFO [stderr] 21 | const WIDTH: u32 = 100;
Dec 11 13:34:40.336 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:40.336 INFO [stderr]    |
Dec 11 13:34:40.336 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:34:40.336 INFO [stderr] 
Dec 11 13:34:40.336 INFO [stderr] warning: constant item is never used: `HEIGHT`
Dec 11 13:34:40.336 INFO [stderr]   --> src/main.rs:22:1
Dec 11 13:34:40.336 INFO [stderr]    |
Dec 11 13:34:40.336 INFO [stderr] 22 | const HEIGHT:u32 = 100;
Dec 11 13:34:40.336 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:40.336 INFO [stderr] 
Dec 11 13:34:40.772 INFO [stderr] warning: unused import: `std::path::Path`
Dec 11 13:34:40.772 INFO [stderr]  --> src/main.rs:5:5
Dec 11 13:34:40.772 INFO [stderr]   |
Dec 11 13:34:40.772 INFO [stderr] 5 | use std::path::Path;
Dec 11 13:34:40.772 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:40.772 INFO [stderr]   |
Dec 11 13:34:40.772 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:34:40.772 INFO [stderr] 
Dec 11 13:34:40.772 INFO [stderr] warning: unused imports: `BufWriter`, `Write`
Dec 11 13:34:40.772 INFO [stderr]  --> src/main.rs:8:21
Dec 11 13:34:40.772 INFO [stderr]   |
Dec 11 13:34:40.772 INFO [stderr] 8 | use std::io::{Read, Write, BufReader, BufWriter};
Dec 11 13:34:40.772 INFO [stderr]   |                     ^^^^^             ^^^^^^^^^
Dec 11 13:34:40.772 INFO [stderr] 
Dec 11 13:34:40.772 INFO [stderr] warning: unused import: `std::ffi::OsStr`
Dec 11 13:34:40.772 INFO [stderr]  --> src/main.rs:9:5
Dec 11 13:34:40.772 INFO [stderr]   |
Dec 11 13:34:40.772 INFO [stderr] 9 | use std::ffi::OsStr;
Dec 11 13:34:40.772 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:40.772 INFO [stderr] 
Dec 11 13:34:40.772 INFO [stderr] warning: unused import: `image::png`
Dec 11 13:34:40.772 INFO [stderr]   --> src/main.rs:12:5
Dec 11 13:34:40.772 INFO [stderr]    |
Dec 11 13:34:40.772 INFO [stderr] 12 | use image::png;
Dec 11 13:34:40.772 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 13:34:40.772 INFO [stderr] 
Dec 11 13:34:40.772 INFO [stderr] warning: unused import: `image::gif::Encoder`
Dec 11 13:34:40.772 INFO [stderr]   --> src/main.rs:13:5
Dec 11 13:34:40.772 INFO [stderr]    |
Dec 11 13:34:40.772 INFO [stderr] 13 | use image::gif::Encoder;
Dec 11 13:34:40.772 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:40.772 INFO [stderr] 
Dec 11 13:34:40.772 INFO [stderr] warning: unused imports: `ImageBuffer`, `Rgb`, `save_buffer`
Dec 11 13:34:40.772 INFO [stderr]   --> src/main.rs:14:13
Dec 11 13:34:40.772 INFO [stderr]    |
Dec 11 13:34:40.772 INFO [stderr] 14 | use image::{save_buffer, ImageBuffer, ColorType, Rgb};
Dec 11 13:34:40.772 INFO [stderr]    |             ^^^^^^^^^^^  ^^^^^^^^^^^             ^^^
Dec 11 13:34:40.772 INFO [stderr] 
Dec 11 13:34:40.856 INFO [stderr] warning: constant item is never used: `WIDTH`
Dec 11 13:34:40.856 INFO [stderr]   --> src/main.rs:21:1
Dec 11 13:34:40.856 INFO [stderr]    |
Dec 11 13:34:40.856 INFO [stderr] 21 | const WIDTH: u32 = 100;
Dec 11 13:34:40.856 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:40.856 INFO [stderr]    |
Dec 11 13:34:40.856 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:34:40.856 INFO [stderr] 
Dec 11 13:34:40.856 INFO [stderr] warning: constant item is never used: `HEIGHT`
Dec 11 13:34:40.856 INFO [stderr]   --> src/main.rs:22:1
Dec 11 13:34:40.856 INFO [stderr]    |
Dec 11 13:34:40.856 INFO [stderr] 22 | const HEIGHT:u32 = 100;
Dec 11 13:34:40.856 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:40.856 INFO [stderr] 
Dec 11 13:34:40.875 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.81s
Dec 11 13:34:40.891 INFO [stderr] su: No module specific data is present
Dec 11 13:34:41.560 INFO running `"docker" "inspect" "06dba63e83b4435bd7d644b546e81a73783d83e0f6dfe2638dcf1fd32aa50d62"`
Dec 11 13:34:41.772 INFO running `"docker" "rm" "-f" "06dba63e83b4435bd7d644b546e81a73783d83e0f6dfe2638dcf1fd32aa50d62"`
Dec 11 13:34:42.112 INFO [stdout] 06dba63e83b4435bd7d644b546e81a73783d83e0f6dfe2638dcf1fd32aa50d62