Dec 19 22:02:19.970 INFO checking RyanMcG/edfp against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 22:02:19.970 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/RyanMcG/edfp:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 22:02:20.368 INFO [stdout] 109f85db8a092accc62e36a53f4bcef5b10dee6c9c4ef58bd24387e977158750
Dec 19 22:02:20.374 INFO running `"docker" "start" "-a" "109f85db8a092accc62e36a53f4bcef5b10dee6c9c4ef58bd24387e977158750"`
Dec 19 22:02:21.544 INFO [stderr]     Checking tempfile v2.1.5
Dec 19 22:02:22.041 INFO [stderr]     Checking edfp v0.1.0 (/opt/crater/workdir)
Dec 19 22:02:22.588 INFO [stderr] warning: unused variable: `empty_string`
Dec 19 22:02:22.588 INFO [stderr]   --> src/main.rs:64:9
Dec 19 22:02:22.588 INFO [stderr]    |
Dec 19 22:02:22.588 INFO [stderr] 64 |     let empty_string = String::new();
Dec 19 22:02:22.588 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_empty_string` instead
Dec 19 22:02:22.588 INFO [stderr]    |
Dec 19 22:02:22.588 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 22:02:22.588 INFO [stderr] 
Dec 19 22:02:22.588 INFO [stderr] warning: unused variable: `new_path`
Dec 19 22:02:22.588 INFO [stderr]   --> src/main.rs:96:33
Dec 19 22:02:22.588 INFO [stderr]    |
Dec 19 22:02:22.588 INFO [stderr] 96 |         Operation::Rename { ref new_path } => true,
Dec 19 22:02:22.588 INFO [stderr]    |                                 ^^^^^^^^ help: try ignoring the field: `new_path: _`
Dec 19 22:02:22.588 INFO [stderr] 
Dec 19 22:02:22.597 INFO [stderr] warning: unused variable: `empty_string`
Dec 19 22:02:22.597 INFO [stderr]   --> src/main.rs:64:9
Dec 19 22:02:22.597 INFO [stderr]    |
Dec 19 22:02:22.597 INFO [stderr] 64 |     let empty_string = String::new();
Dec 19 22:02:22.597 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_empty_string` instead
Dec 19 22:02:22.597 INFO [stderr]    |
Dec 19 22:02:22.597 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 22:02:22.597 INFO [stderr] 
Dec 19 22:02:22.597 INFO [stderr] warning: unused variable: `new_path`
Dec 19 22:02:22.597 INFO [stderr]   --> src/main.rs:96:33
Dec 19 22:02:22.597 INFO [stderr]    |
Dec 19 22:02:22.597 INFO [stderr] 96 |         Operation::Rename { ref new_path } => true,
Dec 19 22:02:22.597 INFO [stderr]    |                                 ^^^^^^^^ help: try ignoring the field: `new_path: _`
Dec 19 22:02:22.597 INFO [stderr] 
Dec 19 22:02:22.630 INFO [stderr] warning: variable does not need to be mutable
Dec 19 22:02:22.630 INFO [stderr]    --> src/main.rs:119:50
Dec 19 22:02:22.630 INFO [stderr]     |
Dec 19 22:02:22.630 INFO [stderr] 119 | fn edfp<I: io::Read, O: io::Write>(mut input: I, mut output: O) {
Dec 19 22:02:22.630 INFO [stderr]     |                                                  ----^^^^^^
Dec 19 22:02:22.630 INFO [stderr]     |                                                  |
Dec 19 22:02:22.630 INFO [stderr]     |                                                  help: remove this `mut`
Dec 19 22:02:22.630 INFO [stderr]     |
Dec 19 22:02:22.630 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 22:02:22.630 INFO [stderr] 
Dec 19 22:02:22.631 INFO [stderr] warning: variable does not need to be mutable
Dec 19 22:02:22.631 INFO [stderr]    --> src/main.rs:157:9
Dec 19 22:02:22.631 INFO [stderr]     |
Dec 19 22:02:22.631 INFO [stderr] 157 |     let mut output = io::stdout();
Dec 19 22:02:22.631 INFO [stderr]     |         ----^^^^^^
Dec 19 22:02:22.631 INFO [stderr]     |         |
Dec 19 22:02:22.631 INFO [stderr]     |         help: remove this `mut`
Dec 19 22:02:22.631 INFO [stderr] 
Dec 19 22:02:22.631 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.631 INFO [stderr]   --> src/main.rs:81:9
Dec 19 22:02:22.631 INFO [stderr]    |
Dec 19 22:02:22.631 INFO [stderr] 81 |         writeln!(output, "{}", header);
Dec 19 22:02:22.631 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.631 INFO [stderr]    |
Dec 19 22:02:22.631 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 22:02:22.631 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.631 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 22:02:22.631 INFO [stderr] 
Dec 19 22:02:22.631 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.631 INFO [stderr]   --> src/main.rs:83:13
Dec 19 22:02:22.631 INFO [stderr]    |
Dec 19 22:02:22.631 INFO [stderr] 83 |             writeln!(output, "\t{}", change);
Dec 19 22:02:22.631 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.631 INFO [stderr]    |
Dec 19 22:02:22.631 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.631 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 22:02:22.631 INFO [stderr] 
Dec 19 22:02:22.631 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.631 INFO [stderr]   --> src/main.rs:85:9
Dec 19 22:02:22.631 INFO [stderr]    |
Dec 19 22:02:22.631 INFO [stderr] 85 |         writeln!(output);
Dec 19 22:02:22.631 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.631 INFO [stderr]    |
Dec 19 22:02:22.631 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.631 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 22:02:22.631 INFO [stderr] 
Dec 19 22:02:22.631 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.631 INFO [stderr]    --> src/main.rs:101:9
Dec 19 22:02:22.631 INFO [stderr]     |
Dec 19 22:02:22.631 INFO [stderr] 101 |         writeln!(output, "No changes");
Dec 19 22:02:22.631 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.631 INFO [stderr]     |
Dec 19 22:02:22.631 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.631 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 22:02:22.631 INFO [stderr] 
Dec 19 22:02:22.631 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.631 INFO [stderr]    --> src/main.rs:114:5
Dec 19 22:02:22.631 INFO [stderr]     |
Dec 19 22:02:22.631 INFO [stderr] 114 |     write!(&tty, "Would you like to make the changes described above (y/n)? ");
Dec 19 22:02:22.631 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.631 INFO [stderr]     |
Dec 19 22:02:22.631 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.631 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 22:02:22.631 INFO [stderr] 
Dec 19 22:02:22.644 INFO [stderr] warning: variable does not need to be mutable
Dec 19 22:02:22.644 INFO [stderr]    --> src/main.rs:119:50
Dec 19 22:02:22.644 INFO [stderr]     |
Dec 19 22:02:22.644 INFO [stderr] 119 | fn edfp<I: io::Read, O: io::Write>(mut input: I, mut output: O) {
Dec 19 22:02:22.644 INFO [stderr]     |                                                  ----^^^^^^
Dec 19 22:02:22.644 INFO [stderr]     |                                                  |
Dec 19 22:02:22.644 INFO [stderr]     |                                                  help: remove this `mut`
Dec 19 22:02:22.644 INFO [stderr]     |
Dec 19 22:02:22.644 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 22:02:22.644 INFO [stderr] 
Dec 19 22:02:22.644 INFO [stderr] warning: variable does not need to be mutable
Dec 19 22:02:22.645 INFO [stderr]    --> src/main.rs:157:9
Dec 19 22:02:22.645 INFO [stderr]     |
Dec 19 22:02:22.645 INFO [stderr] 157 |     let mut output = io::stdout();
Dec 19 22:02:22.645 INFO [stderr]     |         ----^^^^^^
Dec 19 22:02:22.645 INFO [stderr]     |         |
Dec 19 22:02:22.645 INFO [stderr]     |         help: remove this `mut`
Dec 19 22:02:22.645 INFO [stderr] 
Dec 19 22:02:22.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.645 INFO [stderr]   --> src/main.rs:81:9
Dec 19 22:02:22.645 INFO [stderr]    |
Dec 19 22:02:22.645 INFO [stderr] 81 |         writeln!(output, "{}", header);
Dec 19 22:02:22.645 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.645 INFO [stderr]    |
Dec 19 22:02:22.645 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 22:02:22.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.645 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 22:02:22.645 INFO [stderr] 
Dec 19 22:02:22.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.645 INFO [stderr]   --> src/main.rs:83:13
Dec 19 22:02:22.645 INFO [stderr]    |
Dec 19 22:02:22.645 INFO [stderr] 83 |             writeln!(output, "\t{}", change);
Dec 19 22:02:22.645 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.645 INFO [stderr]    |
Dec 19 22:02:22.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.645 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 22:02:22.645 INFO [stderr] 
Dec 19 22:02:22.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.645 INFO [stderr]   --> src/main.rs:85:9
Dec 19 22:02:22.645 INFO [stderr]    |
Dec 19 22:02:22.645 INFO [stderr] 85 |         writeln!(output);
Dec 19 22:02:22.645 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.645 INFO [stderr]    |
Dec 19 22:02:22.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.645 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 22:02:22.645 INFO [stderr] 
Dec 19 22:02:22.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.645 INFO [stderr]    --> src/main.rs:101:9
Dec 19 22:02:22.645 INFO [stderr]     |
Dec 19 22:02:22.645 INFO [stderr] 101 |         writeln!(output, "No changes");
Dec 19 22:02:22.645 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.645 INFO [stderr]     |
Dec 19 22:02:22.645 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.645 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 22:02:22.645 INFO [stderr] 
Dec 19 22:02:22.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:02:22.645 INFO [stderr]    --> src/main.rs:114:5
Dec 19 22:02:22.645 INFO [stderr]     |
Dec 19 22:02:22.645 INFO [stderr] 114 |     write!(&tty, "Would you like to make the changes described above (y/n)? ");
Dec 19 22:02:22.645 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:02:22.645 INFO [stderr]     |
Dec 19 22:02:22.645 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:02:22.645 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 22:02:22.645 INFO [stderr] 
Dec 19 22:02:22.697 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
Dec 19 22:02:23.198 INFO running `"docker" "inspect" "109f85db8a092accc62e36a53f4bcef5b10dee6c9c4ef58bd24387e977158750"`
Dec 19 22:02:23.446 INFO running `"docker" "rm" "-f" "109f85db8a092accc62e36a53f4bcef5b10dee6c9c4ef58bd24387e977158750"`
Dec 19 22:02:23.707 INFO [stdout] 109f85db8a092accc62e36a53f4bcef5b10dee6c9c4ef58bd24387e977158750