[INFO] crate crossterm_cursor 0.2.5 is already in cache [INFO] extracting crate crossterm_cursor 0.2.5 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/crossterm_cursor/0.2.5 [INFO] extracting crate crossterm_cursor 0.2.5 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/crossterm_cursor/0.2.5 [INFO] validating manifest of crossterm_cursor-0.2.5 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of crossterm_cursor-0.2.5 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing crossterm_cursor-0.2.5 [INFO] finished frobbing crossterm_cursor-0.2.5 [INFO] frobbed toml for crossterm_cursor-0.2.5 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/crossterm_cursor/0.2.5/Cargo.toml [INFO] started frobbing crossterm_cursor-0.2.5 [INFO] finished frobbing crossterm_cursor-0.2.5 [INFO] frobbed toml for crossterm_cursor-0.2.5 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/crossterm_cursor/0.2.5/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking crossterm_cursor-0.2.5 against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/crossterm_cursor/0.2.5:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 7d8dab1b3a316dc61f1e329d0f80a0986086f87ae8191b280d544e01240bb24b [INFO] running `"docker" "start" "-a" "7d8dab1b3a316dc61f1e329d0f80a0986086f87ae8191b280d544e01240bb24b"` [INFO] [stderr] Checking crossterm_cursor v0.2.5 (/opt/crater/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/cursor/test.rs:44:9 [INFO] [stderr] | [INFO] [stderr] 44 | cursor.save_position(); [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] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/cursor/test.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | cursor.goto(5, 5); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/cursor/test.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | cursor.reset_position(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/cursor/test.rs:59:9 [INFO] [stderr] | [INFO] [stderr] 59 | cursor.goto(5, 5); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BlinkOff`, `BlinkOn`, `Down`, `ExecutableCommand`, `Left`, `ResetPos`, `Right`, `SavePos`, `Show`, `Up`, `execute` [INFO] [stderr] --> examples/cursor.rs:90:5 [INFO] [stderr] | [INFO] [stderr] 90 | execute, queue, BlinkOff, BlinkOn, Command, Down, ExecutableCommand, Goto, Hide, Left, Output, [INFO] [stderr] | ^^^^^^^ ^^^^^^^^ ^^^^^^^ ^^^^ ^^^^^^^^^^^^^^^^^ ^^^^ [INFO] [stderr] 91 | QueueableCommand, ResetPos, Right, SavePos, Show, Up, [INFO] [stderr] | ^^^^^^^^ ^^^^^ ^^^^^^^ ^^^^ ^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt::Display` [INFO] [stderr] --> examples/cursor.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | use std::fmt::Display; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `stdout` [INFO] [stderr] --> examples/cursor.rs:94:15 [INFO] [stderr] | [INFO] [stderr] 94 | use std::io::{stdout, Write}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> examples/cursor.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Duration` [INFO] [stderr] --> examples/cursor.rs:96:17 [INFO] [stderr] | [INFO] [stderr] 96 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Command` [INFO] [stderr] --> examples/cursor.rs:90:40 [INFO] [stderr] | [INFO] [stderr] 90 | execute, queue, BlinkOff, BlinkOn, Command, Down, ExecutableCommand, Goto, Hide, Left, Output, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> examples/cursor.rs:102:9 [INFO] [stderr] | [INFO] [stderr] 102 | for i in 0..10 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> examples/cursor.rs:113:9 [INFO] [stderr] | [INFO] [stderr] 113 | for i in 0..10 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stdout` [INFO] [stderr] --> examples/cursor.rs:131:13 [INFO] [stderr] | [INFO] [stderr] 131 | let mut stdout = ::std::io::stdout(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stdout` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> examples/cursor.rs:134:9 [INFO] [stderr] | [INFO] [stderr] 134 | for i in 1..=20 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/cursor.rs:131:9 [INFO] [stderr] | [INFO] [stderr] 131 | let mut stdout = ::std::io::stdout(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/cursor.rs:145:9 [INFO] [stderr] | [INFO] [stderr] 145 | let mut stdout = ::std::io::stdout(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `benchmark_cursor_goto` [INFO] [stderr] --> examples/cursor.rs:98:1 [INFO] [stderr] | [INFO] [stderr] 98 | fn benchmark_cursor_goto() -> f32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `start_goto_benchmark` [INFO] [stderr] --> examples/cursor.rs:130:1 [INFO] [stderr] | [INFO] [stderr] 130 | fn start_goto_benchmark() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | cursor.goto(10, 5); [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] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | cursor.goto(5, 5); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:57:5 [INFO] [stderr] | [INFO] [stderr] 57 | cursor.save_position(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:59:5 [INFO] [stderr] | [INFO] [stderr] 59 | cursor.goto(5, 20); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:63:5 [INFO] [stderr] | [INFO] [stderr] 63 | cursor.reset_position(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:73:5 [INFO] [stderr] | [INFO] [stderr] 73 | cursor.hide(); [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 79 | cursor.show(); [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:85:5 [INFO] [stderr] | [INFO] [stderr] 85 | cursor.blink(false); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:86:5 [INFO] [stderr] | [INFO] [stderr] 86 | cursor.blink(false); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 105 | queue!(stdout, Goto(x, y), Hide, Output(y.to_string())); [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 outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:116:17 [INFO] [stderr] | [INFO] [stderr] 116 | cursor.goto(x, y); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/cursor.rs:147:5 [INFO] [stderr] | [INFO] [stderr] 147 | / stdout [INFO] [stderr] 148 | | .queue(Goto(5, 5)) [INFO] [stderr] 149 | | .queue(Output("#".to_string())) [INFO] [stderr] 150 | | .flush(); [INFO] [stderr] | |_________________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `"docker" "inspect" "7d8dab1b3a316dc61f1e329d0f80a0986086f87ae8191b280d544e01240bb24b"` [INFO] running `"docker" "rm" "-f" "7d8dab1b3a316dc61f1e329d0f80a0986086f87ae8191b280d544e01240bb24b"` [INFO] [stdout] 7d8dab1b3a316dc61f1e329d0f80a0986086f87ae8191b280d544e01240bb24b