[INFO] fetching crate puzzle_cube 0.1.3...
[INFO] testing puzzle_cube-0.1.3 against 1.54.0 for beta-1.55-1
[INFO] extracting crate puzzle_cube 0.1.3 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate puzzle_cube 0.1.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate puzzle_cube 0.1.3
[INFO] finished tweaking crates.io crate puzzle_cube 0.1.3
[INFO] tweaked toml for crates.io crate puzzle_cube 0.1.3 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate crates.io crate puzzle_cube 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfa146d5fc8f3d22b3f6bb02a18ceadedb6849460d5060c2576365f027b5d41f
[INFO] running `Command { std: "docker" "start" "-a" "dfa146d5fc8f3d22b3f6bb02a18ceadedb6849460d5060c2576365f027b5d41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfa146d5fc8f3d22b3f6bb02a18ceadedb6849460d5060c2576365f027b5d41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa146d5fc8f3d22b3f6bb02a18ceadedb6849460d5060c2576365f027b5d41f", kill_on_drop: false }`
[INFO] [stdout] dfa146d5fc8f3d22b3f6bb02a18ceadedb6849460d5060c2576365f027b5d41f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf4007c0664a5469a9c61563e1a0d5124866d2d138a2ccadee542a19f863cb8e
[INFO] running `Command { std: "docker" "start" "-a" "bf4007c0664a5469a9c61563e1a0d5124866d2d138a2ccadee542a19f863cb8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling getch v0.2.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling puzzle_cube v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/cube.rs:435:23
[INFO] [stdout]     |
[INFO] [stdout] 435 |         use std::io::{self, Write};
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/cube.rs:461:13
[INFO] [stdout]     |
[INFO] [stdout] 461 |             _ => (),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `selected` is never read
[INFO] [stdout]    --> src/main.rs:142:21
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     selected = true;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `selected` is never read
[INFO] [stdout]    --> src/main.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     selected = true;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/main.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let input = str::from_utf8(get).unwrap();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cube.rs:464:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |         write!(&mut stdout, "\u{25A0} ");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `Command { std: "docker" "inspect" "bf4007c0664a5469a9c61563e1a0d5124866d2d138a2ccadee542a19f863cb8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf4007c0664a5469a9c61563e1a0d5124866d2d138a2ccadee542a19f863cb8e", kill_on_drop: false }`
[INFO] [stdout] bf4007c0664a5469a9c61563e1a0d5124866d2d138a2ccadee542a19f863cb8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b33e73b5b03c71fe13d4b5d4bd7d4b6ccf3a52129487ffd9931441e9541532f2
[INFO] running `Command { std: "docker" "start" "-a" "b33e73b5b03c71fe13d4b5d4bd7d4b6ccf3a52129487ffd9931441e9541532f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling puzzle_cube v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/cube.rs:435:23
[INFO] [stdout]     |
[INFO] [stdout] 435 |         use std::io::{self, Write};
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/cube.rs:461:13
[INFO] [stdout]     |
[INFO] [stdout] 461 |             _ => (),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `selected` is never read
[INFO] [stdout]    --> src/main.rs:142:21
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     selected = true;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `selected` is never read
[INFO] [stdout]    --> src/main.rs:146:21
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     selected = true;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/main.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let input = str::from_utf8(get).unwrap();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cube.rs:464:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |         write!(&mut stdout, "\u{25A0} ");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "b33e73b5b03c71fe13d4b5d4bd7d4b6ccf3a52129487ffd9931441e9541532f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b33e73b5b03c71fe13d4b5d4bd7d4b6ccf3a52129487ffd9931441e9541532f2", kill_on_drop: false }`
[INFO] [stdout] b33e73b5b03c71fe13d4b5d4bd7d4b6ccf3a52129487ffd9931441e9541532f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18e41d545d45d5570d4cef0a774cf390c71165c9f8a21590dd480e3645a1c493
[INFO] running `Command { std: "docker" "start" "-a" "18e41d545d45d5570d4cef0a774cf390c71165c9f8a21590dd480e3645a1c493", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]    --> src/cube.rs:435:23
[INFO] [stderr]     |
[INFO] [stderr] 435 |         use std::io::{self, Write};
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/main.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cube.rs:461:13
[INFO] [stderr]     |
[INFO] [stderr] 461 |             _ => (),
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `selected` is never read
[INFO] [stderr]    --> src/main.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     selected = true;
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `selected` is never read
[INFO] [stderr]    --> src/main.rs:146:21
[INFO] [stderr]     |
[INFO] [stderr] 146 |                     selected = true;
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/main.rs:165:13
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let input = str::from_utf8(get).unwrap();
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/cube.rs:464:9
[INFO] [stderr]     |
[INFO] [stderr] 464 |         write!(&mut stdout, "\u{25A0} ");
[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 the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/puzzle_cube-f32712d3a5492a0f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "18e41d545d45d5570d4cef0a774cf390c71165c9f8a21590dd480e3645a1c493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e41d545d45d5570d4cef0a774cf390c71165c9f8a21590dd480e3645a1c493", kill_on_drop: false }`
[INFO] [stdout] 18e41d545d45d5570d4cef0a774cf390c71165c9f8a21590dd480e3645a1c493
