Nov 28 00:36:52.583 INFO checking minauteur/io-png against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:36:52.584 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 00:36:53.200 INFO [stdout] 694f8202bac3830bb6a2c8117237bd0f08f7282c9d9b9a4974819c8dacc5e9dc
Nov 28 00:36:53.202 INFO running `"docker" "start" "-a" "694f8202bac3830bb6a2c8117237bd0f08f7282c9d9b9a4974819c8dacc5e9dc"`
Nov 28 00:36:55.248 INFO [stderr] usermod: no changes
Nov 28 00:36:55.476 INFO [stderr]     Checking net2 v0.2.31
Nov 28 00:36:55.476 INFO [stderr]     Checking filetime v0.1.15
Nov 28 00:36:55.476 INFO [stderr]     Checking inotify v0.3.0
Nov 28 00:36:55.478 INFO [stderr]     Checking nix v0.5.1
Nov 28 00:36:55.480 INFO [stderr]     Checking image v0.18.0
Nov 28 00:36:57.542 INFO [stderr]     Checking miow v0.1.5
Nov 28 00:37:02.318 INFO [stderr]     Checking mio v0.5.1
Nov 28 00:37:04.194 INFO [stderr]     Checking notify v4.0.3
Nov 28 00:37:05.580 INFO [stderr]     Checking io-png v0.1.0 (/source)
Nov 28 00:37:07.983 INFO [stderr] warning: unused import: `std::path::Path`
Nov 28 00:37:07.984 INFO [stderr]  --> src/main.rs:5:5
Nov 28 00:37:07.984 INFO [stderr]   |
Nov 28 00:37:07.985 INFO [stderr] 5 | use std::path::Path;
Nov 28 00:37:07.986 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 28 00:37:07.986 INFO [stderr]   |
Nov 28 00:37:07.987 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:37:07.987 INFO [stderr] 
Nov 28 00:37:07.988 INFO [stderr] warning: unused imports: `BufWriter`, `Write`
Nov 28 00:37:07.989 INFO [stderr]  --> src/main.rs:8:21
Nov 28 00:37:07.989 INFO [stderr]   |
Nov 28 00:37:07.989 INFO [stderr] 8 | use std::io::{Read, Write, BufReader, BufWriter};
Nov 28 00:37:07.989 INFO [stderr]   |                     ^^^^^             ^^^^^^^^^
Nov 28 00:37:07.989 INFO [stderr] 
Nov 28 00:37:07.989 INFO [stderr] warning: unused import: `std::ffi::OsStr`
Nov 28 00:37:07.989 INFO [stderr]  --> src/main.rs:9:5
Nov 28 00:37:07.989 INFO [stderr]   |
Nov 28 00:37:07.989 INFO [stderr] 9 | use std::ffi::OsStr;
Nov 28 00:37:07.989 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 28 00:37:07.989 INFO [stderr] 
Nov 28 00:37:07.989 INFO [stderr] warning: unused import: `std::path::Path`
Nov 28 00:37:07.989 INFO [stderr]  --> src/main.rs:5:5
Nov 28 00:37:07.992 INFO [stderr]   |
Nov 28 00:37:07.992 INFO [stderr] 5 | use std::path::Path;
Nov 28 00:37:07.992 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr]   |
Nov 28 00:37:07.992 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused imports: `BufWriter`, `Write`
Nov 28 00:37:07.992 INFO [stderr]  --> src/main.rs:8:21
Nov 28 00:37:07.992 INFO [stderr]   |
Nov 28 00:37:07.992 INFO [stderr] 8 | use std::io::{Read, Write, BufReader, BufWriter};
Nov 28 00:37:07.992 INFO [stderr]   |                     ^^^^^             ^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused import: `std::ffi::OsStr`
Nov 28 00:37:07.992 INFO [stderr]  --> src/main.rs:9:5
Nov 28 00:37:07.992 INFO [stderr]   |
Nov 28 00:37:07.992 INFO [stderr] 9 | use std::ffi::OsStr;
Nov 28 00:37:07.992 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused import: `image::png`
Nov 28 00:37:07.992 INFO [stderr]   --> src/main.rs:12:5
Nov 28 00:37:07.992 INFO [stderr]    |
Nov 28 00:37:07.992 INFO [stderr] 12 | use image::png;
Nov 28 00:37:07.992 INFO [stderr]    |     ^^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused import: `image::gif::Encoder`
Nov 28 00:37:07.992 INFO [stderr]   --> src/main.rs:13:5
Nov 28 00:37:07.992 INFO [stderr]    |
Nov 28 00:37:07.992 INFO [stderr] 13 | use image::gif::Encoder;
Nov 28 00:37:07.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused imports: `ImageBuffer`, `Rgb`, `save_buffer`
Nov 28 00:37:07.992 INFO [stderr]   --> src/main.rs:14:13
Nov 28 00:37:07.992 INFO [stderr]    |
Nov 28 00:37:07.992 INFO [stderr] 14 | use image::{save_buffer, ImageBuffer, ColorType, Rgb};
Nov 28 00:37:07.992 INFO [stderr]    |             ^^^^^^^^^^^  ^^^^^^^^^^^             ^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused import: `image::png`
Nov 28 00:37:07.992 INFO [stderr]   --> src/main.rs:12:5
Nov 28 00:37:07.992 INFO [stderr]    |
Nov 28 00:37:07.992 INFO [stderr] 12 | use image::png;
Nov 28 00:37:07.992 INFO [stderr]    |     ^^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused import: `image::gif::Encoder`
Nov 28 00:37:07.992 INFO [stderr]   --> src/main.rs:13:5
Nov 28 00:37:07.992 INFO [stderr]    |
Nov 28 00:37:07.992 INFO [stderr] 13 | use image::gif::Encoder;
Nov 28 00:37:07.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:07.992 INFO [stderr] warning: unused imports: `ImageBuffer`, `Rgb`, `save_buffer`
Nov 28 00:37:07.992 INFO [stderr]   --> src/main.rs:14:13
Nov 28 00:37:07.992 INFO [stderr]    |
Nov 28 00:37:07.992 INFO [stderr] 14 | use image::{save_buffer, ImageBuffer, ColorType, Rgb};
Nov 28 00:37:07.992 INFO [stderr]    |             ^^^^^^^^^^^  ^^^^^^^^^^^             ^^^
Nov 28 00:37:07.992 INFO [stderr] 
Nov 28 00:37:08.071 INFO [stderr] warning: constant item is never used: `WIDTH`
Nov 28 00:37:08.071 INFO [stderr]   --> src/main.rs:21:1
Nov 28 00:37:08.071 INFO [stderr]    |
Nov 28 00:37:08.071 INFO [stderr] 21 | const WIDTH: u32 = 100;
Nov 28 00:37:08.071 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:37:08.071 INFO [stderr]    |
Nov 28 00:37:08.071 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 00:37:08.071 INFO [stderr] 
Nov 28 00:37:08.072 INFO [stderr] warning: constant item is never used: `HEIGHT`
Nov 28 00:37:08.072 INFO [stderr]   --> src/main.rs:22:1
Nov 28 00:37:08.072 INFO [stderr]    |
Nov 28 00:37:08.072 INFO [stderr] 22 | const HEIGHT:u32 = 100;
Nov 28 00:37:08.072 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:37:08.073 INFO [stderr] 
Nov 28 00:37:08.102 INFO [stderr] warning: constant item is never used: `WIDTH`
Nov 28 00:37:08.103 INFO [stderr]   --> src/main.rs:21:1
Nov 28 00:37:08.103 INFO [stderr]    |
Nov 28 00:37:08.103 INFO [stderr] 21 | const WIDTH: u32 = 100;
Nov 28 00:37:08.103 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:37:08.103 INFO [stderr]    |
Nov 28 00:37:08.103 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 00:37:08.103 INFO [stderr] 
Nov 28 00:37:08.103 INFO [stderr] warning: constant item is never used: `HEIGHT`
Nov 28 00:37:08.103 INFO [stderr]   --> src/main.rs:22:1
Nov 28 00:37:08.103 INFO [stderr]    |
Nov 28 00:37:08.103 INFO [stderr] 22 | const HEIGHT:u32 = 100;
Nov 28 00:37:08.103 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:37:08.103 INFO [stderr] 
Nov 28 00:37:08.149 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.87s
Nov 28 00:37:08.161 INFO [stderr] su: No module specific data is present
Nov 28 00:37:09.578 INFO running `"docker" "inspect" "694f8202bac3830bb6a2c8117237bd0f08f7282c9d9b9a4974819c8dacc5e9dc"`
Nov 28 00:37:09.946 INFO running `"docker" "rm" "-f" "694f8202bac3830bb6a2c8117237bd0f08f7282c9d9b9a4974819c8dacc5e9dc"`
Nov 28 00:37:10.211 INFO [stdout] 694f8202bac3830bb6a2c8117237bd0f08f7282c9d9b9a4974819c8dacc5e9dc