[INFO] crate redox_liner 0.5.1 is already in cache
[INFO] testing redox_liner-0.5.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate redox_liner 0.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate redox_liner 0.5.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate redox_liner 0.5.1
[INFO] finished tweaking crates.io crate redox_liner 0.5.1
[INFO] tweaked toml for crates.io crate redox_liner 0.5.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate redox_liner 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f8bab7ff0b90420fb04ad8dea02931fc7f3b2a08b40b89d7c2d9af7e3e0cccf6
[INFO] running `"docker" "start" "-a" "f8bab7ff0b90420fb04ad8dea02931fc7f3b2a08b40b89d7c2d9af7e3e0cccf6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling bytecount v0.6.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling termion v1.5.4
[INFO] [stderr]    Compiling redox_liner v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:397:17
[INFO] [stderr]     |
[INFO] [stderr] 397 | /                 write!(
[INFO] [stderr] 398 | |                     output_buf,
[INFO] [stderr] 399 | |                     "{}{}",
[INFO] [stderr] 400 | |                     color::Black.fg_str(),
[INFO] [stderr] 401 | |                     color::White.bg_str()
[INFO] [stderr] 402 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |             write!(output_buf, "{:<1$}", com, col_width);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:406:17
[INFO] [stderr]     |
[INFO] [stderr] 406 | /                 write!(
[INFO] [stderr] 407 | |                     output_buf,
[INFO] [stderr] 408 | |                     "{}{}",
[INFO] [stderr] 409 | |                     color::Reset.bg_str(),
[INFO] [stderr] 410 | |                     color::Reset.fg_str()
[INFO] [stderr] 411 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:534:9
[INFO] [stderr]     |
[INFO] [stderr] 534 | /         write!(
[INFO] [stderr] 535 | |             &mut self.context.buf,
[INFO] [stderr] 536 | |             "{}{}",
[INFO] [stderr] 537 | |             clear::All,
[INFO] [stderr] 538 | |             cursor::Goto(1, 1)
[INFO] [stderr] 539 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:934:13
[INFO] [stderr]     |
[INFO] [stderr] 934 | /             write!(
[INFO] [stderr] 935 | |                 &mut self.context.buf,
[INFO] [stderr] 936 | |                 "{}",
[INFO] [stderr] 937 | |                 cursor::Up(self.term_cursor_line as u16 - 1)
[INFO] [stderr] 938 | |             );
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:941:9
[INFO] [stderr]     |
[INFO] [stderr] 941 |         write!(&mut self.context.buf, "\r{}", clear::AfterCursor);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:952:9
[INFO] [stderr]     |
[INFO] [stderr] 952 |         write!(&mut self.context.buf, "{}", prompt);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:967:17
[INFO] [stderr]     |
[INFO] [stderr] 967 | /                 write!(
[INFO] [stderr] 968 | |                     &mut self.context.buf,
[INFO] [stderr] 969 | |                     "{}",
[INFO] [stderr] 970 | |                     cursor::Right(prompt_width as u16)
[INFO] [stderr] 971 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:983:21
[INFO] [stderr]     |
[INFO] [stderr] 983 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:985:17
[INFO] [stderr]     |
[INFO] [stderr] 985 |                 write!(&mut self.context.buf, "{}", start);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:987:21
[INFO] [stderr]     |
[INFO] [stderr] 987 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:998:21
[INFO] [stderr]     |
[INFO] [stderr] 998 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1009:13
[INFO] [stderr]      |
[INFO] [stderr] 1009 |             write!(&mut self.context.buf, "{}", color::Reset.fg_str());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1023:13
[INFO] [stderr]      |
[INFO] [stderr] 1023 | /             write!(
[INFO] [stderr] 1024 | |                 &mut self.context.buf,
[INFO] [stderr] 1025 | |                 "{}",
[INFO] [stderr] 1026 | |                 cursor::Up(cursor_line_diff as u16)
[INFO] [stderr] 1027 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1038:13
[INFO] [stderr]      |
[INFO] [stderr] 1038 | /             write!(
[INFO] [stderr] 1039 | |                 &mut self.context.buf,
[INFO] [stderr] 1040 | |                 "{}",
[INFO] [stderr] 1041 | |                 cursor::Left(cursor_col_diff as u16)
[INFO] [stderr] 1042 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1044:13
[INFO] [stderr]      |
[INFO] [stderr] 1044 | /             write!(
[INFO] [stderr] 1045 | |                 &mut self.context.buf,
[INFO] [stderr] 1046 | |                 "{}",
[INFO] [stderr] 1047 | |                 cursor::Right((-cursor_col_diff) as u16)
[INFO] [stderr] 1048 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1055:13
[INFO] [stderr]      |
[INFO] [stderr] 1055 |             out.write_all(self.context.buf.as_bytes());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/keymap/vi.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         mem::replace(&mut self.last_command, keys);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.91s
[INFO] running `"docker" "inspect" "f8bab7ff0b90420fb04ad8dea02931fc7f3b2a08b40b89d7c2d9af7e3e0cccf6"`
[INFO] running `"docker" "rm" "-f" "f8bab7ff0b90420fb04ad8dea02931fc7f3b2a08b40b89d7c2d9af7e3e0cccf6"`
[INFO] [stdout] f8bab7ff0b90420fb04ad8dea02931fc7f3b2a08b40b89d7c2d9af7e3e0cccf6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b997414ae1ab00c1984d1077a01d8346295008669d53c5e36e36ec4f40765a04
[INFO] running `"docker" "start" "-a" "b997414ae1ab00c1984d1077a01d8346295008669d53c5e36e36ec4f40765a04"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:397:17
[INFO] [stderr]     |
[INFO] [stderr] 397 | /                 write!(
[INFO] [stderr] 398 | |                     output_buf,
[INFO] [stderr] 399 | |                     "{}{}",
[INFO] [stderr] 400 | |                     color::Black.fg_str(),
[INFO] [stderr] 401 | |                     color::White.bg_str()
[INFO] [stderr] 402 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |             write!(output_buf, "{:<1$}", com, col_width);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:406:17
[INFO] [stderr]     |
[INFO] [stderr] 406 | /                 write!(
[INFO] [stderr] 407 | |                     output_buf,
[INFO] [stderr] 408 | |                     "{}{}",
[INFO] [stderr] 409 | |                     color::Reset.bg_str(),
[INFO] [stderr] 410 | |                     color::Reset.fg_str()
[INFO] [stderr] 411 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:534:9
[INFO] [stderr]     |
[INFO] [stderr] 534 | /         write!(
[INFO] [stderr] 535 | |             &mut self.context.buf,
[INFO] [stderr] 536 | |             "{}{}",
[INFO] [stderr] 537 | |             clear::All,
[INFO] [stderr] 538 | |             cursor::Goto(1, 1)
[INFO] [stderr] 539 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:934:13
[INFO] [stderr]     |
[INFO] [stderr] 934 | /             write!(
[INFO] [stderr] 935 | |                 &mut self.context.buf,
[INFO] [stderr] 936 | |                 "{}",
[INFO] [stderr] 937 | |                 cursor::Up(self.term_cursor_line as u16 - 1)
[INFO] [stderr] 938 | |             );
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:941:9
[INFO] [stderr]     |
[INFO] [stderr] 941 |         write!(&mut self.context.buf, "\r{}", clear::AfterCursor);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:952:9
[INFO] [stderr]     |
[INFO] [stderr] 952 |         write!(&mut self.context.buf, "{}", prompt);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:967:17
[INFO] [stderr]     |
[INFO] [stderr] 967 | /                 write!(
[INFO] [stderr] 968 | |                     &mut self.context.buf,
[INFO] [stderr] 969 | |                     "{}",
[INFO] [stderr] 970 | |                     cursor::Right(prompt_width as u16)
[INFO] [stderr] 971 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:983:21
[INFO] [stderr]     |
[INFO] [stderr] 983 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:985:17
[INFO] [stderr]     |
[INFO] [stderr] 985 |                 write!(&mut self.context.buf, "{}", start);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:987:21
[INFO] [stderr]     |
[INFO] [stderr] 987 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:998:21
[INFO] [stderr]     |
[INFO] [stderr] 998 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1009:13
[INFO] [stderr]      |
[INFO] [stderr] 1009 |             write!(&mut self.context.buf, "{}", color::Reset.fg_str());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1023:13
[INFO] [stderr]      |
[INFO] [stderr] 1023 | /             write!(
[INFO] [stderr] 1024 | |                 &mut self.context.buf,
[INFO] [stderr] 1025 | |                 "{}",
[INFO] [stderr] 1026 | |                 cursor::Up(cursor_line_diff as u16)
[INFO] [stderr] 1027 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1038:13
[INFO] [stderr]      |
[INFO] [stderr] 1038 | /             write!(
[INFO] [stderr] 1039 | |                 &mut self.context.buf,
[INFO] [stderr] 1040 | |                 "{}",
[INFO] [stderr] 1041 | |                 cursor::Left(cursor_col_diff as u16)
[INFO] [stderr] 1042 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1044:13
[INFO] [stderr]      |
[INFO] [stderr] 1044 | /             write!(
[INFO] [stderr] 1045 | |                 &mut self.context.buf,
[INFO] [stderr] 1046 | |                 "{}",
[INFO] [stderr] 1047 | |                 cursor::Right((-cursor_col_diff) as u16)
[INFO] [stderr] 1048 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1055:13
[INFO] [stderr]      |
[INFO] [stderr] 1055 |             out.write_all(self.context.buf.as_bytes());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/keymap/vi.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         mem::replace(&mut self.last_command, keys);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling redox_liner v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/nocomments.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 replace(&mut self.inner, Some(completer));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/nocomments.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 replace(&mut self.inner, None);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/comments.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 replace(&mut self.inner, Some(completer));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/comments.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 replace(&mut self.inner, None);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:397:17
[INFO] [stderr]     |
[INFO] [stderr] 397 | /                 write!(
[INFO] [stderr] 398 | |                     output_buf,
[INFO] [stderr] 399 | |                     "{}{}",
[INFO] [stderr] 400 | |                     color::Black.fg_str(),
[INFO] [stderr] 401 | |                     color::White.bg_str()
[INFO] [stderr] 402 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |             write!(output_buf, "{:<1$}", com, col_width);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:406:17
[INFO] [stderr]     |
[INFO] [stderr] 406 | /                 write!(
[INFO] [stderr] 407 | |                     output_buf,
[INFO] [stderr] 408 | |                     "{}{}",
[INFO] [stderr] 409 | |                     color::Reset.bg_str(),
[INFO] [stderr] 410 | |                     color::Reset.fg_str()
[INFO] [stderr] 411 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:534:9
[INFO] [stderr]     |
[INFO] [stderr] 534 | /         write!(
[INFO] [stderr] 535 | |             &mut self.context.buf,
[INFO] [stderr] 536 | |             "{}{}",
[INFO] [stderr] 537 | |             clear::All,
[INFO] [stderr] 538 | |             cursor::Goto(1, 1)
[INFO] [stderr] 539 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:934:13
[INFO] [stderr]     |
[INFO] [stderr] 934 | /             write!(
[INFO] [stderr] 935 | |                 &mut self.context.buf,
[INFO] [stderr] 936 | |                 "{}",
[INFO] [stderr] 937 | |                 cursor::Up(self.term_cursor_line as u16 - 1)
[INFO] [stderr] 938 | |             );
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:941:9
[INFO] [stderr]     |
[INFO] [stderr] 941 |         write!(&mut self.context.buf, "\r{}", clear::AfterCursor);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:952:9
[INFO] [stderr]     |
[INFO] [stderr] 952 |         write!(&mut self.context.buf, "{}", prompt);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:967:17
[INFO] [stderr]     |
[INFO] [stderr] 967 | /                 write!(
[INFO] [stderr] 968 | |                     &mut self.context.buf,
[INFO] [stderr] 969 | |                     "{}",
[INFO] [stderr] 970 | |                     cursor::Right(prompt_width as u16)
[INFO] [stderr] 971 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:983:21
[INFO] [stderr]     |
[INFO] [stderr] 983 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:985:17
[INFO] [stderr]     |
[INFO] [stderr] 985 |                 write!(&mut self.context.buf, "{}", start);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:987:21
[INFO] [stderr]     |
[INFO] [stderr] 987 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:998:21
[INFO] [stderr]     |
[INFO] [stderr] 998 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1009:13
[INFO] [stderr]      |
[INFO] [stderr] 1009 |             write!(&mut self.context.buf, "{}", color::Reset.fg_str());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1023:13
[INFO] [stderr]      |
[INFO] [stderr] 1023 | /             write!(
[INFO] [stderr] 1024 | |                 &mut self.context.buf,
[INFO] [stderr] 1025 | |                 "{}",
[INFO] [stderr] 1026 | |                 cursor::Up(cursor_line_diff as u16)
[INFO] [stderr] 1027 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1038:13
[INFO] [stderr]      |
[INFO] [stderr] 1038 | /             write!(
[INFO] [stderr] 1039 | |                 &mut self.context.buf,
[INFO] [stderr] 1040 | |                 "{}",
[INFO] [stderr] 1041 | |                 cursor::Left(cursor_col_diff as u16)
[INFO] [stderr] 1042 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1044:13
[INFO] [stderr]      |
[INFO] [stderr] 1044 | /             write!(
[INFO] [stderr] 1045 | |                 &mut self.context.buf,
[INFO] [stderr] 1046 | |                 "{}",
[INFO] [stderr] 1047 | |                 cursor::Right((-cursor_col_diff) as u16)
[INFO] [stderr] 1048 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1055:13
[INFO] [stderr]      |
[INFO] [stderr] 1055 |             out.write_all(self.context.buf.as_bytes());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/keymap/vi.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         mem::replace(&mut self.last_command, keys);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.63s
[INFO] running `"docker" "inspect" "b997414ae1ab00c1984d1077a01d8346295008669d53c5e36e36ec4f40765a04"`
[INFO] running `"docker" "rm" "-f" "b997414ae1ab00c1984d1077a01d8346295008669d53c5e36e36ec4f40765a04"`
[INFO] [stdout] b997414ae1ab00c1984d1077a01d8346295008669d53c5e36e36ec4f40765a04
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] baaa2ebcf775ac4db00483c44bd0651b1ffee12f60224b104ef522301906d59d
[INFO] running `"docker" "start" "-a" "baaa2ebcf775ac4db00483c44bd0651b1ffee12f60224b104ef522301906d59d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:397:17
[INFO] [stderr]     |
[INFO] [stderr] 397 | /                 write!(
[INFO] [stderr] 398 | |                     output_buf,
[INFO] [stderr] 399 | |                     "{}{}",
[INFO] [stderr] 400 | |                     color::Black.fg_str(),
[INFO] [stderr] 401 | |                     color::White.bg_str()
[INFO] [stderr] 402 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |             write!(output_buf, "{:<1$}", com, col_width);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:397:17
[INFO] [stderr]     |
[INFO] [stderr] 397 | /                 write!(
[INFO] [stderr] 398 | |                     output_buf,
[INFO] [stderr] 399 | |                     "{}{}",
[INFO] [stderr] 400 | |                     color::Black.fg_str(),
[INFO] [stderr] 401 | |                     color::White.bg_str()
[INFO] [stderr] 402 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |             write!(output_buf, "{:<1$}", com, col_width);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:406:17
[INFO] [stderr]     |
[INFO] [stderr] 406 | /                 write!(
[INFO] [stderr] 407 | |                     output_buf,
[INFO] [stderr] 408 | |                     "{}{}",
[INFO] [stderr] 409 | |                     color::Reset.bg_str(),
[INFO] [stderr] 410 | |                     color::Reset.fg_str()
[INFO] [stderr] 411 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:534:9
[INFO] [stderr]     |
[INFO] [stderr] 534 | /         write!(
[INFO] [stderr] 535 | |             &mut self.context.buf,
[INFO] [stderr] 536 | |             "{}{}",
[INFO] [stderr] 537 | |             clear::All,
[INFO] [stderr] 538 | |             cursor::Goto(1, 1)
[INFO] [stderr] 539 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:406:17
[INFO] [stderr]     |
[INFO] [stderr] 406 | /                 write!(
[INFO] [stderr] 407 | |                     output_buf,
[INFO] [stderr] 408 | |                     "{}{}",
[INFO] [stderr] 409 | |                     color::Reset.bg_str(),
[INFO] [stderr] 410 | |                     color::Reset.fg_str()
[INFO] [stderr] 411 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:934:13
[INFO] [stderr]     |
[INFO] [stderr] 934 | /             write!(
[INFO] [stderr] 935 | |                 &mut self.context.buf,
[INFO] [stderr] 936 | |                 "{}",
[INFO] [stderr] 937 | |                 cursor::Up(self.term_cursor_line as u16 - 1)
[INFO] [stderr] 938 | |             );
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:534:9
[INFO] [stderr]     |
[INFO] [stderr] 534 | /         write!(
[INFO] [stderr] 535 | |             &mut self.context.buf,
[INFO] [stderr] 536 | |             "{}{}",
[INFO] [stderr] 537 | |             clear::All,
[INFO] [stderr] 538 | |             cursor::Goto(1, 1)
[INFO] [stderr] 539 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:941:9
[INFO] [stderr]     |
[INFO] [stderr] 941 |         write!(&mut self.context.buf, "\r{}", clear::AfterCursor);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:934:13
[INFO] [stderr]     |
[INFO] [stderr] 934 | /             write!(
[INFO] [stderr] 935 | |                 &mut self.context.buf,
[INFO] [stderr] 936 | |                 "{}",
[INFO] [stderr] 937 | |                 cursor::Up(self.term_cursor_line as u16 - 1)
[INFO] [stderr] 938 | |             );
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:952:9
[INFO] [stderr]     |
[INFO] [stderr] 952 |         write!(&mut self.context.buf, "{}", prompt);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:941:9
[INFO] [stderr]     |
[INFO] [stderr] 941 |         write!(&mut self.context.buf, "\r{}", clear::AfterCursor);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:952:9
[INFO] [stderr]     |
[INFO] [stderr] 952 |         write!(&mut self.context.buf, "{}", prompt);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:967:17
[INFO] [stderr]     |
[INFO] [stderr] 967 | /                 write!(
[INFO] [stderr] 968 | |                     &mut self.context.buf,
[INFO] [stderr] 969 | |                     "{}",
[INFO] [stderr] 970 | |                     cursor::Right(prompt_width as u16)
[INFO] [stderr] 971 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:983:21
[INFO] [stderr]     |
[INFO] [stderr] 983 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:967:17
[INFO] [stderr]     |
[INFO] [stderr] 967 | /                 write!(
[INFO] [stderr] 968 | |                     &mut self.context.buf,
[INFO] [stderr] 969 | |                     "{}",
[INFO] [stderr] 970 | |                     cursor::Right(prompt_width as u16)
[INFO] [stderr] 971 | |                 );
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:983:21
[INFO] [stderr]     |
[INFO] [stderr] 983 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:985:17
[INFO] [stderr]     |
[INFO] [stderr] 985 |                 write!(&mut self.context.buf, "{}", start);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:987:21
[INFO] [stderr]     |
[INFO] [stderr] 987 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:998:21
[INFO] [stderr]     |
[INFO] [stderr] 998 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:985:17
[INFO] [stderr]     |
[INFO] [stderr] 985 |                 write!(&mut self.context.buf, "{}", start);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1009:13
[INFO] [stderr]      |
[INFO] [stderr] 1009 |             write!(&mut self.context.buf, "{}", color::Reset.fg_str());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:987:21
[INFO] [stderr]     |
[INFO] [stderr] 987 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1023:13
[INFO] [stderr]      |
[INFO] [stderr] 1023 | /             write!(
[INFO] [stderr] 1024 | |                 &mut self.context.buf,
[INFO] [stderr] 1025 | |                 "{}",
[INFO] [stderr] 1026 | |                 cursor::Up(cursor_line_diff as u16)
[INFO] [stderr] 1027 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/editor.rs:998:21
[INFO] [stderr]     |
[INFO] [stderr] 998 |                     write!(&mut self.context.buf, "{}", color::Yellow.fg_str());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1038:13
[INFO] [stderr]      |
[INFO] [stderr] 1038 | /             write!(
[INFO] [stderr] 1039 | |                 &mut self.context.buf,
[INFO] [stderr] 1040 | |                 "{}",
[INFO] [stderr] 1041 | |                 cursor::Left(cursor_col_diff as u16)
[INFO] [stderr] 1042 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1009:13
[INFO] [stderr]      |
[INFO] [stderr] 1009 |             write!(&mut self.context.buf, "{}", color::Reset.fg_str());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1044:13
[INFO] [stderr]      |
[INFO] [stderr] 1044 | /             write!(
[INFO] [stderr] 1045 | |                 &mut self.context.buf,
[INFO] [stderr] 1046 | |                 "{}",
[INFO] [stderr] 1047 | |                 cursor::Right((-cursor_col_diff) as u16)
[INFO] [stderr] 1048 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1023:13
[INFO] [stderr]      |
[INFO] [stderr] 1023 | /             write!(
[INFO] [stderr] 1024 | |                 &mut self.context.buf,
[INFO] [stderr] 1025 | |                 "{}",
[INFO] [stderr] 1026 | |                 cursor::Up(cursor_line_diff as u16)
[INFO] [stderr] 1027 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1055:13
[INFO] [stderr]      |
[INFO] [stderr] 1055 |             out.write_all(self.context.buf.as_bytes());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/keymap/vi.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         mem::replace(&mut self.last_command, keys);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1038:13
[INFO] [stderr]      |
[INFO] [stderr] 1038 | /             write!(
[INFO] [stderr] 1039 | |                 &mut self.context.buf,
[INFO] [stderr] 1040 | |                 "{}",
[INFO] [stderr] 1041 | |                 cursor::Left(cursor_col_diff as u16)
[INFO] [stderr] 1042 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/comments.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 replace(&mut self.inner, Some(completer));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/comments.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 replace(&mut self.inner, None);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1044:13
[INFO] [stderr]      |
[INFO] [stderr] 1044 | /             write!(
[INFO] [stderr] 1045 | |                 &mut self.context.buf,
[INFO] [stderr] 1046 | |                 "{}",
[INFO] [stderr] 1047 | |                 cursor::Right((-cursor_col_diff) as u16)
[INFO] [stderr] 1048 | |             );
[INFO] [stderr]      | |______________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/editor.rs:1055:13
[INFO] [stderr]      |
[INFO] [stderr] 1055 |             out.write_all(self.context.buf.as_bytes());
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/nocomments.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 replace(&mut self.inner, Some(completer));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/keymap/vi.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         mem::replace(&mut self.last_command, keys);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> examples/nocomments.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 replace(&mut self.inner, None);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/liner-8385df5c49f9133e
[INFO] [stdout] 
[INFO] [stdout] running 170 tests
[INFO] [stdout] test buffer::tests::test_does_not_start_with ... ok
[INFO] [stdout] test buffer::tests::test_does_not_contain ... ok
[INFO] [stdout] test buffer::tests::test_contains ... ok
[INFO] [stdout] test buffer::tests::test_insert ... ok
[INFO] [stdout] test buffer::tests::test_nested_redo_group ... ok
[INFO] [stdout] test buffer::tests::test_print_rest ... ok
[INFO] [stdout] test buffer::tests::test_starts_with ... ok
[INFO] [stdout] test buffer::tests::test_redo_group ... ok
[INFO] [stdout] test buffer::tests::test_truncate_all ... ok
[INFO] [stdout] test buffer::tests::test_nested_undo_group ... ok
[INFO] [stdout] test buffer::tests::test_truncate_empty ... ok
[INFO] [stdout] test buffer::tests::test_truncate_all_then_undo ... ok
[INFO] [stdout] test buffer::tests::test_is_not_match2 ... ok
[INFO] [stdout] test buffer::tests::test_truncate_end ... ok
[INFO] [stdout] test buffer::tests::test_truncate_end_then_undo ... ok
[INFO] [stdout] test buffer::tests::test_truncate_part ... ok
[INFO] [stdout] test buffer::tests::test_truncate_empty_undo ... ok
[INFO] [stdout] test buffer::tests::test_truncate_part_then_undo ... ok
[INFO] [stdout] test buffer::tests::test_undo_group ... ok
[INFO] [stdout] test editor::tests::delete_until_backwards ... ok
[INFO] [stdout] test editor::tests::delete_until_forwards ... ok
[INFO] [stdout] test editor::tests::delete_all_after_cursor_undo ... ok
[INFO] [stdout] test editor::tests::delete_until_inclusive ... ok
[INFO] [stdout] test editor::tests::cursor_movement ... ok
[INFO] [stdout] test keymap::emacs::tests::ctrl_h ... ok
[INFO] [stdout] test keymap::emacs::tests::enter_is_done ... ok
[INFO] [stdout] test editor::tests::move_cursor_left ... ok
[INFO] [stdout] test keymap::tests::ctrl_d_empty ... ok
[INFO] [stdout] test editor::tests::delete_until ... ok
[INFO] [stdout] test keymap::emacs::tests::cursor_movement ... ok
[INFO] [stdout] test keymap::tests::ctrl_c ... ok
[INFO] [stdout] test keymap::emacs::tests::move_word ... ok
[INFO] [stdout] test keymap::tests::ctrl_d_non_empty ... ok
[INFO] [stdout] test keymap::vi::tests::change_until_end_from_middle_shift_c ... ok
[INFO] [stdout] test keymap::vi::tests::change_char_left ... ok
[INFO] [stdout] test keymap::vi::tests::change_chars_right ... ok
[INFO] [stdout] test keymap::vi::tests::basic_replace ... ok
[INFO] [stdout] test keymap::vi::tests::change_chars_left ... ok
[INFO] [stdout] test keymap::vi::tests::change_line ... ok
[INFO] [stdout] test keymap::vi::tests::change_with_count_and_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::change_until_end ... ok
[INFO] [stdout] test keymap::vi::tests::change_word ... ok
[INFO] [stdout] test keymap::vi::tests::change_and_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::change_until_end_shift_c ... ok
[INFO] [stdout] test keymap::vi::tests::delete_char_left ... ok
[INFO] [stdout] test keymap::vi::tests::change_char_right ... ok
[INFO] [stdout] test keymap::vi::tests::delete_chars_left ... ok
[INFO] [stdout] test keymap::vi::tests::cursor_movement ... ok
[INFO] [stdout] test keymap::vi::tests::change_until_start ... ok
[INFO] [stdout] test keymap::vi::tests::delete_char_right ... ok
[INFO] [stdout] test keymap::vi::tests::delete_abort ... ok
[INFO] [stdout] test keymap::vi::tests::change_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::count_at_buffer_edge ... ok
[INFO] [stdout] test keymap::vi::tests::delete_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::delete_line ... ok
[INFO] [stdout] test keymap::vi::tests::change_word_ge_ws ... ok
[INFO] [stdout] test keymap::vi::tests::ctrl_h ... ok
[INFO] [stdout] test keymap::vi::tests::delete_line_normal ... ok
[INFO] [stdout] test keymap::vi::tests::delete_with_count_and_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::delete_until_end ... ok
[INFO] [stdout] test keymap::vi::tests::delete_until_end_shift_d ... ok
[INFO] [stdout] test keymap::vi::tests::delete_and_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::move_count ... ok
[INFO] [stdout] test keymap::vi::tests::enter_is_done ... ok
[INFO] [stdout] test keymap::vi::tests::delete_chars_right ... ok
[INFO] [stdout] test keymap::vi::tests::dot_replace ... ok
[INFO] [stdout] test keymap::vi::tests::dot_replace_eol_multiple ... ok
[INFO] [stdout] test keymap::vi::tests::dot_x_delete ... ok
[INFO] [stdout] test keymap::vi::tests::delete_word ... ok
[INFO] [stdout] test keymap::vi::tests::move_cursor_left ... ok
[INFO] [stdout] test keymap::vi::tests::dot_replace_eol ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_ws_comma ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_comma ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_whitespace_nonkeywords ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_ws_whitespace ... ok
[INFO] [stdout] test keymap::vi::tests::delete_until_start ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_ws_whitespace_count ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_ws_whitespace_nonkeywords ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_ws_nonkeywords ... ok
[INFO] [stdout] test keymap::emacs::tests::move_cursor_left ... ok
[INFO] [stdout] test keymap::vi::tests::move_word_simple ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_ws_simple ... ok
[INFO] [stdout] test keymap::vi::tests::dot_replace_count ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_simple ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_whitespace ... ok
[INFO] [stdout] test keymap::vi::tests::move_to_end_of_word_nonkeywords ... ok
[INFO] [stdout] test keymap::vi::tests::move_count_right ... ok
[INFO] [stdout] test keymap::vi::tests::repeat_char_move_no_char ... ok
[INFO] [stdout] test keymap::vi::tests::movement_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::move_count_left ... ok
[INFO] [stdout] test keymap::vi::tests::move_word_and_back ... ok
[INFO] [stdout] test keymap::vi::tests::move_word_whitespace_nonkeywords ... ok
[INFO] [stdout] test keymap::vi::tests::replace_with_count_eol ... ok
[INFO] [stdout] test keymap::vi::tests::substitute_with_count_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::substitute_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::test_f_movement ... ok
[INFO] [stdout] test keymap::vi::tests::movement_with_count_then_insert ... ok
[INFO] [stdout] test keymap::vi::tests::test_cap_f_movement ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_not_found ... ok
[INFO] [stdout] test keymap::vi::tests::move_word_whitespace ... ok
[INFO] [stdout] test keymap::vi::tests::move_word_and_back_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::replace_then_normal ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_rev ... ok
[INFO] [stdout] test keymap::vi::tests::move_word_nonkeywords ... ok
[INFO] [stdout] test keymap::vi::tests::replace_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::test_cap_t_movement ... ok
[INFO] [stdout] test keymap::vi::tests::test_semi_delete_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::test_t_movement ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_rev_not_found ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_rev_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::test_t_movement_then_normal ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_with_start ... ok
[INFO] [stdout] test keymap::vi::tests::test_semi_delete ... ok
[INFO] [stdout] test keymap::vi::tests::test_find_char_rev_with_start ... ok
[INFO] [stdout] test keymap::vi::tests::test_comma_movement ... ok
[INFO] [stdout] test keymap::vi::tests::test_t_movement_with_change ... ok
[INFO] [stdout] test keymap::vi::tests::test_redo_with_counts ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::test_undo_with_counts ... ok
[INFO] [stdout] test keymap::vi::tests::test_semi_movement ... ok
[INFO] [stdout] test keymap::vi::tests::test_count_reset_around_insert_and_delete ... ok
[INFO] [stdout] test keymap::vi::tests::test_t_movement_with_delete ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert ... ok
[INFO] [stdout] test keymap::vi::tests::test_t_not_found ... ok
[INFO] [stdout] test keymap::vi::tests::undo_3x ... ok
[INFO] [stdout] test keymap::vi::tests::test_t_movement_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert2 ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_basic ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_basic2 ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert_with_movement_reset ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_count ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_count_short ... ok
[INFO] [stdout] test keymap::vi::tests::undo_s_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_move ... ok
[INFO] [stdout] test keymap::vi::tests::undo_multiple_groups ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert_with_count ... ok
[INFO] [stdout] test keymap::vi::tests::vi_count_simple ... ok
[INFO] [stdout] test keymap::vi::tests::tilde_nocase ... ok
[INFO] [stdout] test keymap::vi::tests::vi_count ... ok
[INFO] [stdout] test keymap::vi::tests::vi_dot_command_append ... ok
[INFO] [stdout] test keymap::vi::tests::vi_dot_command_movement ... ok
[INFO] [stdout] test keymap::vi::tests::vi_dot_command_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert_with_history ... ok
[INFO] [stdout] test keymap::vi::tests::vi_count_cancel ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert_with_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::vi_dot_command ... ok
[INFO] [stdout] test keymap::vi::tests::vi_dot_command_append_repeat ... ok
[INFO] [stdout] test keymap::vi::tests::undo_insert_with_history2 ... ok
[INFO] [stdout] test keymap::vi::tests::vi_normal_history_cursor_eol ... ok
[INFO] [stdout] test keymap::vi::tests::vi_normal_history ... ok
[INFO] [stdout] test keymap::vi::tests::vi_initial_insert ... ok
[INFO] [stdout] test keymap::vi::tests::vi_normal_delete ... ok
[INFO] [stdout] test keymap::vi::tests::vi_switch_from_insert ... ok
[INFO] [stdout] test keymap::vi::tests::undo_r_command_with_count ... ok
[INFO] [stdout] test test::test_history_indexing ... ok
[INFO] [stdout] test keymap::vi::tests::vi_left_right_movement ... ok
[INFO] [stdout] test keymap::vi::tests::vi_dot_command_repeat_multiple ... ok
[INFO] [stdout] test keymap::vi::tests::vi_no_eol ... ok
[INFO] [stdout] test test::test_buffer_actions ... ok
[INFO] [stdout] test test::test_get_cursor_position ... ok
[INFO] [stdout] test test::test_in_memory_history_truncating ... ok
[INFO] [stdout] test test::test_reading_from_file ... ok
[INFO] [stdout] test keymap::vi::tests::vi_count_movement_reset ... ok
[INFO] [stdout] test keymap::vi::tests::vi_count_overflow ... ok
[INFO] [stdout] test keymap::vi::tests::vi_count_overflow_zero ... ok
[INFO] [stdout] test keymap::vi::tests::vi_search_history ... ok
[INFO] [stdout] test test::test_in_file_history_truncating ... ok
[INFO] [stdout] test keymap::vi::tests::vi_substitute_command ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 170 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests liner
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/context.rs - context::Context::read_line_with_init_buffer (line 87) ... ok
[INFO] [stdout] test src/keymap/vi.rs - keymap::vi::Vi (line 309) ... ok
[INFO] [stdout] test src/keymap/emacs.rs - keymap::emacs::Emacs (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "baaa2ebcf775ac4db00483c44bd0651b1ffee12f60224b104ef522301906d59d"`
[INFO] running `"docker" "rm" "-f" "baaa2ebcf775ac4db00483c44bd0651b1ffee12f60224b104ef522301906d59d"`
[INFO] [stdout] baaa2ebcf775ac4db00483c44bd0651b1ffee12f60224b104ef522301906d59d