[INFO] cloning repository https://github.com/ben0x539/kilordlesolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ben0x539/kilordlesolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben0x539%2Fkilordlesolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben0x539%2Fkilordlesolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a79c38fc76c5f098fa0d9b8c72948c297b73f61
[INFO] testing ben0x539/kilordlesolver against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben0x539%2Fkilordlesolver" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ben0x539/kilordlesolver on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ben0x539/kilordlesolver
[INFO] finished tweaking git repo https://github.com/ben0x539/kilordlesolver
[INFO] tweaked toml for git repo https://github.com/ben0x539/kilordlesolver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ben0x539/kilordlesolver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.5
[INFO] [stderr]   Downloaded tracing-core v0.1.23
[INFO] [stderr]   Downloaded valuable v0.1.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.9
[INFO] [stderr]   Downloaded indenter v0.3.3
[INFO] [stderr]   Downloaded tracing v0.1.32
[INFO] [stderr]   Downloaded eyre v0.6.7
[INFO] [stderr]   Downloaded tracing-error v0.2.0
[INFO] [stderr]   Downloaded owo-colors v3.3.0
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded color-spantrace v0.2.0
[INFO] [stderr]   Downloaded color-eyre v0.6.1
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dd2ff860974c2c9c725be94001dd44e523a62dafb9af781e1805283d493e960
[INFO] running `Command { std: "docker" "start" "-a" "5dd2ff860974c2c9c725be94001dd44e523a62dafb9af781e1805283d493e960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dd2ff860974c2c9c725be94001dd44e523a62dafb9af781e1805283d493e960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dd2ff860974c2c9c725be94001dd44e523a62dafb9af781e1805283d493e960", kill_on_drop: false }`
[INFO] [stdout] 5dd2ff860974c2c9c725be94001dd44e523a62dafb9af781e1805283d493e960
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a99858784756379cfe4588398a2c6e21d1d7d445cee24fa81fcf59148cdcd0
[INFO] running `Command { std: "docker" "start" "-a" "d2a99858784756379cfe4588398a2c6e21d1d7d445cee24fa81fcf59148cdcd0", 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] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling eyre v0.6.7
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling owo-colors v3.3.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling tracing-core v0.1.23
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-error v0.2.0
[INFO] [stderr]    Compiling color-spantrace v0.2.0
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling color-eyre v0.6.1
[INFO] [stderr]    Compiling kilordlesolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     tx.send(guesses);
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "d2a99858784756379cfe4588398a2c6e21d1d7d445cee24fa81fcf59148cdcd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a99858784756379cfe4588398a2c6e21d1d7d445cee24fa81fcf59148cdcd0", kill_on_drop: false }`
[INFO] [stdout] d2a99858784756379cfe4588398a2c6e21d1d7d445cee24fa81fcf59148cdcd0
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1b04e19fa2e4c2b2994c026bd290ccd009b3f1e50cca58f1af9b2968cff1971
[INFO] running `Command { std: "docker" "start" "-a" "f1b04e19fa2e4c2b2994c026bd290ccd009b3f1e50cca58f1af9b2968cff1971", kill_on_drop: false }`
[INFO] [stderr]    Compiling kilordlesolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:21
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     tx.send(guesses);
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "f1b04e19fa2e4c2b2994c026bd290ccd009b3f1e50cca58f1af9b2968cff1971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b04e19fa2e4c2b2994c026bd290ccd009b3f1e50cca58f1af9b2968cff1971", kill_on_drop: false }`
[INFO] [stdout] f1b04e19fa2e4c2b2994c026bd290ccd009b3f1e50cca58f1af9b2968cff1971
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 036ca2e7028058f9fad03696c734aefdb83a6dbe90c33eff216e1ddb987865f2
[INFO] running `Command { std: "docker" "start" "-a" "036ca2e7028058f9fad03696c734aefdb83a6dbe90c33eff216e1ddb987865f2", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:92:21
[INFO] [stderr]    |
[INFO] [stderr] 92 |                     tx.send(guesses);
[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: `kilordlesolver` (bin "kilordlesolver" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kilordlesolver-ad6cd8d8a8a4ea87)
[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" "036ca2e7028058f9fad03696c734aefdb83a6dbe90c33eff216e1ddb987865f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "036ca2e7028058f9fad03696c734aefdb83a6dbe90c33eff216e1ddb987865f2", kill_on_drop: false }`
[INFO] [stdout] 036ca2e7028058f9fad03696c734aefdb83a6dbe90c33eff216e1ddb987865f2