[INFO] cloning repository https://github.com/grkuntzmd/rust-sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grkuntzmd/rust-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrkuntzmd%2Frust-sudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrkuntzmd%2Frust-sudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7816f6f254b7f1be45dee2026a79e57a7ee373b
[INFO] testing grkuntzmd/rust-sudoku against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrkuntzmd%2Frust-sudoku" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/grkuntzmd/rust-sudoku
[INFO] finished tweaking git repo https://github.com/grkuntzmd/rust-sudoku
[INFO] tweaked toml for git repo https://github.com/grkuntzmd/rust-sudoku written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/grkuntzmd/rust-sudoku on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/grkuntzmd/rust-sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atoi v0.3.2
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6a15ea87d31d740963743e8f644f2933431d4066fb8f62fc9a6a1446f48e2d0
[INFO] running `Command { std: "docker" "start" "-a" "f6a15ea87d31d740963743e8f644f2933431d4066fb8f62fc9a6a1446f48e2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6a15ea87d31d740963743e8f644f2933431d4066fb8f62fc9a6a1446f48e2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a15ea87d31d740963743e8f644f2933431d4066fb8f62fc9a6a1446f48e2d0", kill_on_drop: false }`
[INFO] [stdout] f6a15ea87d31d740963743e8f644f2933431d4066fb8f62fc9a6a1446f48e2d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b0b19fb9ce6b57d8b19939b79d7c9d215fbabe73dfdaf59d068dc770ebfd5fb9
[INFO] running `Command { std: "docker" "start" "-a" "b0b19fb9ce6b57d8b19939b79d7c9d215fbabe73dfdaf59d068dc770ebfd5fb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling atoi v0.3.2
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling sudoku v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/solver/mod.rs:548:19
[INFO] [stdout]     |
[INFO] [stdout] 548 |     fn index<'a>(&'a self, p: &Point) -> &Cell {
[INFO] [stdout]     |                   ^^                     ----- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 548 |     fn index<'a>(&'a self, p: &Point) -> &'a Cell {
[INFO] [stdout]     |                                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/solver/mod.rs:554:23
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn index_mut<'a>(&'a mut self, p: &Point) -> &mut Cell {
[INFO] [stdout]     |                       ^^                         --------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn index_mut<'a>(&'a mut self, p: &Point) -> &'a mut Cell {
[INFO] [stdout]     |                                                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `Command { std: "docker" "inspect" "b0b19fb9ce6b57d8b19939b79d7c9d215fbabe73dfdaf59d068dc770ebfd5fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b19fb9ce6b57d8b19939b79d7c9d215fbabe73dfdaf59d068dc770ebfd5fb9", kill_on_drop: false }`
[INFO] [stdout] b0b19fb9ce6b57d8b19939b79d7c9d215fbabe73dfdaf59d068dc770ebfd5fb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] bc3a0d4f5e0f5b0d8282891b45a7c1ed70ae2e0593709a7d9741aeb3bad0a7eb
[INFO] running `Command { std: "docker" "start" "-a" "bc3a0d4f5e0f5b0d8282891b45a7c1ed70ae2e0593709a7d9741aeb3bad0a7eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/solver/mod.rs:548:19
[INFO] [stdout]     |
[INFO] [stdout] 548 |     fn index<'a>(&'a self, p: &Point) -> &Cell {
[INFO] [stdout]     |                   ^^                     ----- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 548 |     fn index<'a>(&'a self, p: &Point) -> &'a Cell {
[INFO] [stdout]     |                                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/solver/mod.rs:554:23
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn index_mut<'a>(&'a mut self, p: &Point) -> &mut Cell {
[INFO] [stdout]     |                       ^^                         --------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn index_mut<'a>(&'a mut self, p: &Point) -> &'a mut Cell {
[INFO] [stdout]     |                                                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "bc3a0d4f5e0f5b0d8282891b45a7c1ed70ae2e0593709a7d9741aeb3bad0a7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc3a0d4f5e0f5b0d8282891b45a7c1ed70ae2e0593709a7d9741aeb3bad0a7eb", kill_on_drop: false }`
[INFO] [stdout] bc3a0d4f5e0f5b0d8282891b45a7c1ed70ae2e0593709a7d9741aeb3bad0a7eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c4e1b0a77f0e00a7cab53b3795349b9ad9da00d43c5e7d9e3e9fae8e3b27de69
[INFO] running `Command { std: "docker" "start" "-a" "c4e1b0a77f0e00a7cab53b3795349b9ad9da00d43c5e7d9e3e9fae8e3b27de69", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/solver/mod.rs:548:19
[INFO] [stderr]     |
[INFO] [stderr] 548 |     fn index<'a>(&'a self, p: &Point) -> &Cell {
[INFO] [stderr]     |                   ^^                     ----- the lifetime gets resolved as `'a`
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 548 |     fn index<'a>(&'a self, p: &Point) -> &'a Cell {
[INFO] [stderr]     |                                           ++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/solver/mod.rs:554:23
[INFO] [stderr]     |
[INFO] [stderr] 554 |     fn index_mut<'a>(&'a mut self, p: &Point) -> &mut Cell {
[INFO] [stderr]     |                       ^^                         --------- the lifetime gets resolved as `'a`
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 554 |     fn index_mut<'a>(&'a mut self, p: &Point) -> &'a mut Cell {
[INFO] [stderr]     |                                                   ++
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (bin "sudoku" test) generated 2 warnings (run `cargo fix --bin "sudoku" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/sudoku-f6183e1348cdee58)
[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" "c4e1b0a77f0e00a7cab53b3795349b9ad9da00d43c5e7d9e3e9fae8e3b27de69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e1b0a77f0e00a7cab53b3795349b9ad9da00d43c5e7d9e3e9fae8e3b27de69", kill_on_drop: false }`
[INFO] [stdout] c4e1b0a77f0e00a7cab53b3795349b9ad9da00d43c5e7d9e3e9fae8e3b27de69