Dec 05 16:52:23.086 INFO checking akaze-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 16:52:23.086 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 16:52:23.455 INFO [stdout] 647b9f9b496eed81f919caad427352448b51bfdf0b5f72a241d89331667b38f7
Dec 05 16:52:23.471 INFO running `"docker" "start" "-a" "647b9f9b496eed81f919caad427352448b51bfdf0b5f72a241d89331667b38f7"`
Dec 05 16:52:24.636 INFO [stderr] usermod: no changes
Dec 05 16:52:24.687 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 05 16:52:25.042 INFO [stderr]    Compiling serde v1.0.80
Dec 05 16:52:25.043 INFO [stderr]     Checking strings v0.1.1
Dec 05 16:52:25.047 INFO [stderr]     Checking num-rational v0.2.1
Dec 05 16:52:27.082 INFO [stderr]     Checking image v0.20.1
Dec 05 16:52:39.633 INFO [stderr]     Checking syntex_pos v0.59.1
Dec 05 16:52:39.634 INFO [stderr]     Checking extprim v1.6.0
Dec 05 16:52:39.635 INFO [stderr]     Checking serde_json v1.0.33
Dec 05 16:52:39.635 INFO [stderr]     Checking toml v0.4.9
Dec 05 16:52:39.635 INFO [stderr]     Checking serde_cbor v0.9.0
Dec 05 16:52:46.233 INFO [stderr]     Checking syntex_errors v0.59.1
Dec 05 16:52:52.353 INFO [stderr]     Checking syntex_syntax v0.59.1
Dec 05 16:53:12.767 INFO [stderr]     Checking rustfmt v0.10.0
Dec 05 16:53:21.324 INFO [stderr]     Checking akaze v0.1.0 (/source)
Dec 05 16:53:32.410 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:53:32.411 INFO [stderr]    --> src/types/evolution.rs:164:5
Dec 05 16:53:32.411 INFO [stderr]     |
Dec 05 16:53:32.411 INFO [stderr] 164 |     write!(to_write, "{}{:05}.png", path_label, idx);
Dec 05 16:53:32.411 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:53:32.412 INFO [stderr]     |
Dec 05 16:53:32.412 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 16:53:32.412 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:53:32.412 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 16:53:32.413 INFO [stderr] 
Dec 05 16:53:32.833 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:53:32.833 INFO [stderr]    --> src/types/evolution.rs:164:5
Dec 05 16:53:32.833 INFO [stderr]     |
Dec 05 16:53:32.833 INFO [stderr] 164 |     write!(to_write, "{}{:05}.png", path_label, idx);
Dec 05 16:53:32.833 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:53:32.855 INFO [stderr]     |
Dec 05 16:53:32.855 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 16:53:32.855 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:53:32.855 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 16:53:32.855 INFO [stderr] 
Dec 05 16:54:01.291 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
Dec 05 16:54:01.299 INFO [stderr] su: No module specific data is present
Dec 05 16:54:01.787 INFO running `"docker" "inspect" "647b9f9b496eed81f919caad427352448b51bfdf0b5f72a241d89331667b38f7"`
Dec 05 16:54:02.063 INFO running `"docker" "rm" "-f" "647b9f9b496eed81f919caad427352448b51bfdf0b5f72a241d89331667b38f7"`
Dec 05 16:54:02.411 INFO [stdout] 647b9f9b496eed81f919caad427352448b51bfdf0b5f72a241d89331667b38f7