[INFO] fetching crate sudoku-tui 0.2.0...
[INFO] testing sudoku-tui-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate sudoku-tui 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate sudoku-tui 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sudoku-tui 0.2.0
[INFO] finished tweaking crates.io crate sudoku-tui 0.2.0
[INFO] tweaked toml for crates.io crate sudoku-tui 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate sudoku-tui 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clock-core v0.0.7
[INFO] [stderr]   Downloaded hhmmss v0.1.0
[INFO] [stderr]   Downloaded sudoku v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f2fb28c59e117a1b84d7482797b6f110655ea24321eb9969c2d44506e75f2b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f2fb28c59e117a1b84d7482797b6f110655ea24321eb9969c2d44506e75f2b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f2fb28c59e117a1b84d7482797b6f110655ea24321eb9969c2d44506e75f2b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f2fb28c59e117a1b84d7482797b6f110655ea24321eb9969c2d44506e75f2b0", kill_on_drop: false }`
[INFO] [stdout] 1f2fb28c59e117a1b84d7482797b6f110655ea24321eb9969c2d44506e75f2b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8582b41b4bac86b15bf063a137858f054fb2abebd22783753cc90009543c224
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f8582b41b4bac86b15bf063a137858f054fb2abebd22783753cc90009543c224", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling mio v0.7.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling crossterm v0.17.7
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling sudoku v0.7.0
[INFO] [stderr]    Compiling enum-map v0.6.3
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling const-random v0.1.11
[INFO] [stderr]    Compiling ahash v0.4.5
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling clock-core v0.0.7
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling hhmmss v0.1.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]    Compiling enumset v1.0.1
[INFO] [stderr]    Compiling cursive_core v0.1.1
[INFO] [stderr]    Compiling cursive v0.15.0
[INFO] [stderr]    Compiling sudoku-tui v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude`
[INFO] [stdout]   --> src/board.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.78s
[INFO] running `Command { std: "docker" "inspect" "f8582b41b4bac86b15bf063a137858f054fb2abebd22783753cc90009543c224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8582b41b4bac86b15bf063a137858f054fb2abebd22783753cc90009543c224", kill_on_drop: false }`
[INFO] [stdout] f8582b41b4bac86b15bf063a137858f054fb2abebd22783753cc90009543c224
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf2407278c69386cae8d6713962eed62b7e72083e4bbf524ee454ffdd2d60798
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf2407278c69386cae8d6713962eed62b7e72083e4bbf524ee454ffdd2d60798", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku-tui v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude`
[INFO] [stdout]   --> src/board.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude`
[INFO] [stdout]   --> src/board.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "cf2407278c69386cae8d6713962eed62b7e72083e4bbf524ee454ffdd2d60798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2407278c69386cae8d6713962eed62b7e72083e4bbf524ee454ffdd2d60798", kill_on_drop: false }`
[INFO] [stdout] cf2407278c69386cae8d6713962eed62b7e72083e4bbf524ee454ffdd2d60798
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0283c406c85a6762375a2021ee11383094e06135c408c57baa2cbedc6750a5f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0283c406c85a6762375a2021ee11383094e06135c408c57baa2cbedc6750a5f7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `rand::prelude`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/board.rs:15:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 15 | use rand::prelude::*;
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude`
[INFO] [stderr]   --> src/board.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use rand::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku_tui-d7cfaf169fccac22
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku-a7d48686d4918af2
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sudoku-tui
[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] [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" "0283c406c85a6762375a2021ee11383094e06135c408c57baa2cbedc6750a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0283c406c85a6762375a2021ee11383094e06135c408c57baa2cbedc6750a5f7", kill_on_drop: false }`
[INFO] [stdout] 0283c406c85a6762375a2021ee11383094e06135c408c57baa2cbedc6750a5f7