Dec 11 13:34:26.690 INFO checking minauteur/io-png against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:34:26.690 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 13:34:27.158 INFO [stdout] 212c49555d5ac67120a071f8fcec8e3e21aaeae7e9eeb31a70126d87ee1c5793
Dec 11 13:34:27.160 INFO running `"docker" "start" "-a" "212c49555d5ac67120a071f8fcec8e3e21aaeae7e9eeb31a70126d87ee1c5793"`
Dec 11 13:34:29.192 INFO [stderr] usermod: no changes
Dec 11 13:34:29.381 INFO [stderr]     Checking net2 v0.2.31
Dec 11 13:34:29.392 INFO [stderr]     Checking filetime v0.1.15
Dec 11 13:34:29.392 INFO [stderr]     Checking inotify v0.3.0
Dec 11 13:34:29.395 INFO [stderr]     Checking image v0.18.0
Dec 11 13:34:30.865 INFO [stderr]     Checking miow v0.1.5
Dec 11 13:34:31.283 INFO [stderr]     Checking mio v0.5.1
Dec 11 13:34:33.145 INFO [stderr]     Checking notify v4.0.3
Dec 11 13:34:36.972 INFO [stderr]     Checking io-png v0.1.0 (/source)
Dec 11 13:34:39.020 INFO [stderr] warning: unused import: `std::path::Path`
Dec 11 13:34:39.020 INFO [stderr]  --> src/main.rs:5:5
Dec 11 13:34:39.020 INFO [stderr]   |
Dec 11 13:34:39.020 INFO [stderr] 5 | use std::path::Path;
Dec 11 13:34:39.020 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:39.020 INFO [stderr]   |
Dec 11 13:34:39.020 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:34:39.020 INFO [stderr] 
Dec 11 13:34:39.020 INFO [stderr] warning: unused imports: `BufWriter`, `Write`
Dec 11 13:34:39.020 INFO [stderr]  --> src/main.rs:8:21
Dec 11 13:34:39.020 INFO [stderr]   |
Dec 11 13:34:39.020 INFO [stderr] 8 | use std::io::{Read, Write, BufReader, BufWriter};
Dec 11 13:34:39.020 INFO [stderr]   |                     ^^^^^             ^^^^^^^^^
Dec 11 13:34:39.020 INFO [stderr] 
Dec 11 13:34:39.020 INFO [stderr] warning: unused import: `std::ffi::OsStr`
Dec 11 13:34:39.021 INFO [stderr]  --> src/main.rs:9:5
Dec 11 13:34:39.021 INFO [stderr]   |
Dec 11 13:34:39.021 INFO [stderr] 9 | use std::ffi::OsStr;
Dec 11 13:34:39.021 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:39.021 INFO [stderr] 
Dec 11 13:34:39.021 INFO [stderr] warning: unused import: `image::png`
Dec 11 13:34:39.021 INFO [stderr]   --> src/main.rs:12:5
Dec 11 13:34:39.021 INFO [stderr]    |
Dec 11 13:34:39.021 INFO [stderr] 12 | use image::png;
Dec 11 13:34:39.021 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 13:34:39.021 INFO [stderr] 
Dec 11 13:34:39.021 INFO [stderr] warning: unused import: `image::gif::Encoder`
Dec 11 13:34:39.021 INFO [stderr]   --> src/main.rs:13:5
Dec 11 13:34:39.021 INFO [stderr]    |
Dec 11 13:34:39.021 INFO [stderr] 13 | use image::gif::Encoder;
Dec 11 13:34:39.021 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:39.021 INFO [stderr] 
Dec 11 13:34:39.021 INFO [stderr] warning: unused imports: `ImageBuffer`, `Rgb`, `save_buffer`
Dec 11 13:34:39.021 INFO [stderr]   --> src/main.rs:14:13
Dec 11 13:34:39.021 INFO [stderr]    |
Dec 11 13:34:39.021 INFO [stderr] 14 | use image::{save_buffer, ImageBuffer, ColorType, Rgb};
Dec 11 13:34:39.021 INFO [stderr]    |             ^^^^^^^^^^^  ^^^^^^^^^^^             ^^^
Dec 11 13:34:39.021 INFO [stderr] 
Dec 11 13:34:39.116 INFO [stderr] warning: constant item is never used: `WIDTH`
Dec 11 13:34:39.116 INFO [stderr]   --> src/main.rs:21:1
Dec 11 13:34:39.116 INFO [stderr]    |
Dec 11 13:34:39.116 INFO [stderr] 21 | const WIDTH: u32 = 100;
Dec 11 13:34:39.116 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:39.116 INFO [stderr]    |
Dec 11 13:34:39.116 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:34:39.116 INFO [stderr] 
Dec 11 13:34:39.116 INFO [stderr] warning: constant item is never used: `HEIGHT`
Dec 11 13:34:39.116 INFO [stderr]   --> src/main.rs:22:1
Dec 11 13:34:39.116 INFO [stderr]    |
Dec 11 13:34:39.116 INFO [stderr] 22 | const HEIGHT:u32 = 100;
Dec 11 13:34:39.116 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:39.116 INFO [stderr] 
Dec 11 13:34:39.329 INFO [stderr] warning: unused import: `std::path::Path`
Dec 11 13:34:39.329 INFO [stderr]  --> src/main.rs:5:5
Dec 11 13:34:39.329 INFO [stderr]   |
Dec 11 13:34:39.329 INFO [stderr] 5 | use std::path::Path;
Dec 11 13:34:39.329 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:39.329 INFO [stderr]   |
Dec 11 13:34:39.329 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:34:39.329 INFO [stderr] 
Dec 11 13:34:39.329 INFO [stderr] warning: unused imports: `BufWriter`, `Write`
Dec 11 13:34:39.329 INFO [stderr]  --> src/main.rs:8:21
Dec 11 13:34:39.329 INFO [stderr]   |
Dec 11 13:34:39.329 INFO [stderr] 8 | use std::io::{Read, Write, BufReader, BufWriter};
Dec 11 13:34:39.329 INFO [stderr]   |                     ^^^^^             ^^^^^^^^^
Dec 11 13:34:39.329 INFO [stderr] 
Dec 11 13:34:39.329 INFO [stderr] warning: unused import: `std::ffi::OsStr`
Dec 11 13:34:39.329 INFO [stderr]  --> src/main.rs:9:5
Dec 11 13:34:39.329 INFO [stderr]   |
Dec 11 13:34:39.329 INFO [stderr] 9 | use std::ffi::OsStr;
Dec 11 13:34:39.329 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:34:39.329 INFO [stderr] 
Dec 11 13:34:39.329 INFO [stderr] warning: unused import: `image::png`
Dec 11 13:34:39.329 INFO [stderr]   --> src/main.rs:12:5
Dec 11 13:34:39.329 INFO [stderr]    |
Dec 11 13:34:39.329 INFO [stderr] 12 | use image::png;
Dec 11 13:34:39.329 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 13:34:39.329 INFO [stderr] 
Dec 11 13:34:39.329 INFO [stderr] warning: unused import: `image::gif::Encoder`
Dec 11 13:34:39.329 INFO [stderr]   --> src/main.rs:13:5
Dec 11 13:34:39.329 INFO [stderr]    |
Dec 11 13:34:39.329 INFO [stderr] 13 | use image::gif::Encoder;
Dec 11 13:34:39.329 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:39.329 INFO [stderr] 
Dec 11 13:34:39.329 INFO [stderr] warning: unused imports: `ImageBuffer`, `Rgb`, `save_buffer`
Dec 11 13:34:39.329 INFO [stderr]   --> src/main.rs:14:13
Dec 11 13:34:39.329 INFO [stderr]    |
Dec 11 13:34:39.329 INFO [stderr] 14 | use image::{save_buffer, ImageBuffer, ColorType, Rgb};
Dec 11 13:34:39.329 INFO [stderr]    |             ^^^^^^^^^^^  ^^^^^^^^^^^             ^^^
Dec 11 13:34:39.329 INFO [stderr] 
Dec 11 13:34:39.408 INFO [stderr] warning: constant item is never used: `WIDTH`
Dec 11 13:34:39.408 INFO [stderr]   --> src/main.rs:21:1
Dec 11 13:34:39.408 INFO [stderr]    |
Dec 11 13:34:39.408 INFO [stderr] 21 | const WIDTH: u32 = 100;
Dec 11 13:34:39.408 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:39.408 INFO [stderr]    |
Dec 11 13:34:39.408 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:34:39.408 INFO [stderr] 
Dec 11 13:34:39.408 INFO [stderr] warning: constant item is never used: `HEIGHT`
Dec 11 13:34:39.408 INFO [stderr]   --> src/main.rs:22:1
Dec 11 13:34:39.408 INFO [stderr]    |
Dec 11 13:34:39.408 INFO [stderr] 22 | const HEIGHT:u32 = 100;
Dec 11 13:34:39.408 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:34:39.408 INFO [stderr] 
Dec 11 13:34:39.444 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.22s
Dec 11 13:34:39.457 INFO [stderr] su: No module specific data is present
Dec 11 13:34:40.186 INFO running `"docker" "inspect" "212c49555d5ac67120a071f8fcec8e3e21aaeae7e9eeb31a70126d87ee1c5793"`
Dec 11 13:34:40.518 INFO running `"docker" "rm" "-f" "212c49555d5ac67120a071f8fcec8e3e21aaeae7e9eeb31a70126d87ee1c5793"`
Dec 11 13:34:40.932 INFO [stdout] 212c49555d5ac67120a071f8fcec8e3e21aaeae7e9eeb31a70126d87ee1c5793