Dec 06 07:57:04.231 INFO testing adolfosilva/vcrust against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 07:57:04.231 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 07:57:04.824 INFO [stdout] 6719f6cf0fb8f233bd87834d70d8cc86e740c50e4ac3432580b1502041cf1858
Dec 06 07:57:04.826 INFO running `"docker" "start" "-a" "6719f6cf0fb8f233bd87834d70d8cc86e740c50e4ac3432580b1502041cf1858"`
Dec 06 07:57:06.784 INFO [stderr] usermod: no changes
Dec 06 07:57:06.857 INFO [stderr]    Compiling gcc v0.3.44
Dec 06 07:57:09.267 INFO [stderr]    Compiling vcrust v0.1.0 (/source)
Dec 06 07:57:10.598 INFO [stderr] warning: unused import: `std::iter::repeat`
Dec 06 07:57:10.598 INFO [stderr]  --> src/ops.rs:1:5
Dec 06 07:57:10.598 INFO [stderr]   |
Dec 06 07:57:10.598 INFO [stderr] 1 | use std::iter::repeat;
Dec 06 07:57:10.598 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 06 07:57:10.598 INFO [stderr]   |
Dec 06 07:57:10.598 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 07:57:10.598 INFO [stderr] 
Dec 06 07:57:10.598 INFO [stderr] warning: unused import: `ImageType`
Dec 06 07:57:10.598 INFO [stderr]  --> src/ops.rs:2:20
Dec 06 07:57:10.598 INFO [stderr]   |
Dec 06 07:57:10.598 INFO [stderr] 2 | use image::{Image, ImageType, Channel};
Dec 06 07:57:10.598 INFO [stderr]   |                    ^^^^^^^^^
Dec 06 07:57:10.598 INFO [stderr] 
Dec 06 07:57:10.776 INFO [stderr] warning: variable does not need to be mutable
Dec 06 07:57:10.776 INFO [stderr]    --> src/image.rs:263:13
Dec 06 07:57:10.776 INFO [stderr]     |
Dec 06 07:57:10.776 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 06 07:57:10.776 INFO [stderr]     |             ----^^^^
Dec 06 07:57:10.776 INFO [stderr]     |             |
Dec 06 07:57:10.776 INFO [stderr]     |             help: remove this `mut`
Dec 06 07:57:10.776 INFO [stderr]     |
Dec 06 07:57:10.776 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 07:57:10.776 INFO [stderr] 
Dec 06 07:57:10.796 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 06 07:57:10.796 INFO [stderr]    --> src/image.rs:295:9
Dec 06 07:57:10.796 INFO [stderr]     |
Dec 06 07:57:10.796 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 06 07:57:10.796 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:57:10.796 INFO [stderr]     |
Dec 06 07:57:10.796 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 07:57:10.796 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 06 07:57:10.796 INFO [stderr] 
Dec 06 07:57:11.768 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
Dec 06 07:57:11.768 INFO [stderr] su: No module specific data is present
Dec 06 07:57:12.996 INFO running `"docker" "inspect" "6719f6cf0fb8f233bd87834d70d8cc86e740c50e4ac3432580b1502041cf1858"`
Dec 06 07:57:13.300 INFO running `"docker" "rm" "-f" "6719f6cf0fb8f233bd87834d70d8cc86e740c50e4ac3432580b1502041cf1858"`
Dec 06 07:57:13.644 INFO [stdout] 6719f6cf0fb8f233bd87834d70d8cc86e740c50e4ac3432580b1502041cf1858
Dec 06 07:57:13.650 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 07:57:14.129 INFO [stdout] fea9149c097f36c0c6afbc824688ea833f9853c77f861a3ff7c856ae7302ce8e
Dec 06 07:57:14.131 INFO running `"docker" "start" "-a" "fea9149c097f36c0c6afbc824688ea833f9853c77f861a3ff7c856ae7302ce8e"`
Dec 06 07:57:15.147 INFO [stderr] usermod: no changes
Dec 06 07:57:15.180 INFO [stderr]    Compiling vcrust v0.1.0 (/source)
Dec 06 07:57:15.776 INFO [stderr] warning: variable does not need to be mutable
Dec 06 07:57:15.776 INFO [stderr]    --> src/image.rs:263:13
Dec 06 07:57:15.776 INFO [stderr]     |
Dec 06 07:57:15.776 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 06 07:57:15.776 INFO [stderr]     |             ----^^^^
Dec 06 07:57:15.776 INFO [stderr]     |             |
Dec 06 07:57:15.776 INFO [stderr]     |             help: remove this `mut`
Dec 06 07:57:15.776 INFO [stderr]     |
Dec 06 07:57:15.776 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 06 07:57:15.776 INFO [stderr] 
Dec 06 07:57:15.807 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 06 07:57:15.807 INFO [stderr]    --> src/image.rs:295:9
Dec 06 07:57:15.807 INFO [stderr]     |
Dec 06 07:57:15.807 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 06 07:57:15.807 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:57:15.807 INFO [stderr]     |
Dec 06 07:57:15.807 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 07:57:15.807 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 06 07:57:15.807 INFO [stderr] 
Dec 06 07:57:15.808 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:57:15.808 INFO [stderr]    --> src/image.rs:429:5
Dec 06 07:57:15.808 INFO [stderr]     |
Dec 06 07:57:15.808 INFO [stderr] 429 |     img.write("image/barbara2.pgm");
Dec 06 07:57:15.808 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:57:15.808 INFO [stderr]     |
Dec 06 07:57:15.808 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:57:15.808 INFO [stderr] 
Dec 06 07:57:16.467 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Dec 06 07:57:16.472 INFO [stderr] su: No module specific data is present
Dec 06 07:57:16.749 INFO running `"docker" "inspect" "fea9149c097f36c0c6afbc824688ea833f9853c77f861a3ff7c856ae7302ce8e"`
Dec 06 07:57:16.842 INFO running `"docker" "rm" "-f" "fea9149c097f36c0c6afbc824688ea833f9853c77f861a3ff7c856ae7302ce8e"`
Dec 06 07:57:16.925 INFO [stdout] fea9149c097f36c0c6afbc824688ea833f9853c77f861a3ff7c856ae7302ce8e