Dec 19 07:11:52.921 INFO checking thomhuds/crystald against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 07:11:52.921 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/thomhuds/crystald:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 07:11:53.502 INFO [stdout] d1a5ede02208024615ac67992e57814ec45a76e2b1a794ba6094e4484132daac
Dec 19 07:11:53.502 INFO running `"docker" "start" "-a" "d1a5ede02208024615ac67992e57814ec45a76e2b1a794ba6094e4484132daac"`
Dec 19 07:11:55.224 INFO [stderr]     Checking redox_syscall v0.1.37
Dec 19 07:11:55.224 INFO [stderr]     Checking termion v1.5.1
Dec 19 07:11:55.224 INFO [stderr]     Checking rand v0.3.22
Dec 19 07:11:56.213 INFO [stderr]     Checking redox_event v0.1.0
Dec 19 07:11:56.940 INFO [stderr]     Checking crystald v0.1.0 (/opt/crater/workdir)
Dec 19 07:11:57.520 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.520 INFO [stderr]   --> src/bin/sine_source.rs:13:5
Dec 19 07:11:57.520 INFO [stderr]    |
Dec 19 07:11:57.520 INFO [stderr] 13 |     fevent(fd, EVENT_WRITE);
Dec 19 07:11:57.520 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.520 INFO [stderr]    |
Dec 19 07:11:57.520 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:11:57.520 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.520 INFO [stderr] 
Dec 19 07:11:57.712 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.712 INFO [stderr]   --> src/bin/peak_sink.rs:17:5
Dec 19 07:11:57.712 INFO [stderr]    |
Dec 19 07:11:57.712 INFO [stderr] 17 |     write!(stdout, "Peak: {}", cursor::Save);
Dec 19 07:11:57.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.732 INFO [stderr]    |
Dec 19 07:11:57.732 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:11:57.732 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.732 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 19 07:11:57.732 INFO [stderr] 
Dec 19 07:11:57.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.732 INFO [stderr]   --> src/bin/peak_sink.rs:18:5
Dec 19 07:11:57.732 INFO [stderr]    |
Dec 19 07:11:57.732 INFO [stderr] 18 |     stdout.flush();
Dec 19 07:11:57.732 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 07:11:57.736 INFO [stderr]    |
Dec 19 07:11:57.736 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.736 INFO [stderr] 
Dec 19 07:11:57.736 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.736 INFO [stderr]   --> src/bin/peak_sink.rs:21:9
Dec 19 07:11:57.736 INFO [stderr]    |
Dec 19 07:11:57.736 INFO [stderr] 21 |         stdin().read(&mut stdin_buf);
Dec 19 07:11:57.736 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.736 INFO [stderr]    |
Dec 19 07:11:57.736 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.736 INFO [stderr] 
Dec 19 07:11:57.736 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.736 INFO [stderr]   --> src/bin/peak_sink.rs:31:9
Dec 19 07:11:57.736 INFO [stderr]    |
Dec 19 07:11:57.736 INFO [stderr] 31 |         write!(stdout, "{}{}", cursor::Restore, peak);
Dec 19 07:11:57.736 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.736 INFO [stderr]    |
Dec 19 07:11:57.736 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.736 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 19 07:11:57.736 INFO [stderr] 
Dec 19 07:11:57.736 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.736 INFO [stderr]   --> src/bin/peak_sink.rs:32:9
Dec 19 07:11:57.736 INFO [stderr]    |
Dec 19 07:11:57.736 INFO [stderr] 32 |         stdout.flush();
Dec 19 07:11:57.736 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Dec 19 07:11:57.737 INFO [stderr]    |
Dec 19 07:11:57.737 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.737 INFO [stderr] 
Dec 19 07:11:57.796 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.796 INFO [stderr]   --> src/bin/sine_source.rs:13:5
Dec 19 07:11:57.796 INFO [stderr]    |
Dec 19 07:11:57.796 INFO [stderr] 13 |     fevent(fd, EVENT_WRITE);
Dec 19 07:11:57.796 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.796 INFO [stderr]    |
Dec 19 07:11:57.796 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:11:57.796 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.796 INFO [stderr] 
Dec 19 07:11:57.888 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.888 INFO [stderr]   --> src/bin/peak_sink.rs:17:5
Dec 19 07:11:57.888 INFO [stderr]    |
Dec 19 07:11:57.888 INFO [stderr] 17 |     write!(stdout, "Peak: {}", cursor::Save);
Dec 19 07:11:57.888 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.888 INFO [stderr]    |
Dec 19 07:11:57.888 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:11:57.888 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.888 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 19 07:11:57.888 INFO [stderr] 
Dec 19 07:11:57.888 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.888 INFO [stderr]   --> src/bin/peak_sink.rs:18:5
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr] 18 |     stdout.flush();
Dec 19 07:11:57.889 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.889 INFO [stderr] 
Dec 19 07:11:57.889 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.889 INFO [stderr]   --> src/bin/peak_sink.rs:21:9
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr] 21 |         stdin().read(&mut stdin_buf);
Dec 19 07:11:57.889 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.889 INFO [stderr] 
Dec 19 07:11:57.889 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.889 INFO [stderr]   --> src/bin/peak_sink.rs:31:9
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr] 31 |         write!(stdout, "{}{}", cursor::Restore, peak);
Dec 19 07:11:57.889 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.889 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 19 07:11:57.889 INFO [stderr] 
Dec 19 07:11:57.889 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:11:57.889 INFO [stderr]   --> src/bin/peak_sink.rs:32:9
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr] 32 |         stdout.flush();
Dec 19 07:11:57.889 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Dec 19 07:11:57.889 INFO [stderr]    |
Dec 19 07:11:57.889 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:11:57.889 INFO [stderr] 
Dec 19 07:11:58.056 INFO [stderr] warning: variable `buf` is assigned to, but never used
Dec 19 07:11:58.056 INFO [stderr]   --> src/buffer.rs:21:13
Dec 19 07:11:58.056 INFO [stderr]    |
Dec 19 07:11:58.056 INFO [stderr] 21 |         let buf;
Dec 19 07:11:58.056 INFO [stderr]    |             ^^^
Dec 19 07:11:58.056 INFO [stderr]    |
Dec 19 07:11:58.056 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 07:11:58.056 INFO [stderr]    = note: consider using `_buf` instead
Dec 19 07:11:58.056 INFO [stderr] 
Dec 19 07:11:58.056 INFO [stderr] warning: value assigned to `buf` is never read
Dec 19 07:11:58.056 INFO [stderr]   --> src/buffer.rs:26:13
Dec 19 07:11:58.056 INFO [stderr]    |
Dec 19 07:11:58.056 INFO [stderr] 26 |             buf = slice::from_raw_parts_mut(ptr, size);
Dec 19 07:11:58.056 INFO [stderr]    |             ^^^
Dec 19 07:11:58.056 INFO [stderr]    |
Dec 19 07:11:58.056 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 07:11:58.056 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 07:11:58.056 INFO [stderr] 
Dec 19 07:11:58.168 INFO [stderr] warning: variable `buf` is assigned to, but never used
Dec 19 07:11:58.168 INFO [stderr]   --> src/buffer.rs:21:13
Dec 19 07:11:58.168 INFO [stderr]    |
Dec 19 07:11:58.168 INFO [stderr] 21 |         let buf;
Dec 19 07:11:58.168 INFO [stderr]    |             ^^^
Dec 19 07:11:58.168 INFO [stderr]    |
Dec 19 07:11:58.168 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 07:11:58.168 INFO [stderr]    = note: consider using `_buf` instead
Dec 19 07:11:58.168 INFO [stderr] 
Dec 19 07:11:58.168 INFO [stderr] warning: value assigned to `buf` is never read
Dec 19 07:11:58.168 INFO [stderr]   --> src/buffer.rs:26:13
Dec 19 07:11:58.168 INFO [stderr]    |
Dec 19 07:11:58.168 INFO [stderr] 26 |             buf = slice::from_raw_parts_mut(ptr, size);
Dec 19 07:11:58.168 INFO [stderr]    |             ^^^
Dec 19 07:11:58.168 INFO [stderr]    |
Dec 19 07:11:58.168 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 07:11:58.168 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 07:11:58.168 INFO [stderr] 
Dec 19 07:11:58.304 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
Dec 19 07:11:59.467 INFO running `"docker" "inspect" "d1a5ede02208024615ac67992e57814ec45a76e2b1a794ba6094e4484132daac"`
Dec 19 07:11:59.833 INFO running `"docker" "rm" "-f" "d1a5ede02208024615ac67992e57814ec45a76e2b1a794ba6094e4484132daac"`
Dec 19 07:12:00.188 INFO [stdout] d1a5ede02208024615ac67992e57814ec45a76e2b1a794ba6094e4484132daac