[INFO] cloning repository https://github.com/JohnathanFL/rust_scrabble
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JohnathanFL/rust_scrabble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnathanFL%2Frust_scrabble", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnathanFL%2Frust_scrabble'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3263cfccd6d9d02039e39f225c5bab63fdaa073
[INFO] testing JohnathanFL/rust_scrabble against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnathanFL%2Frust_scrabble" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JohnathanFL/rust_scrabble on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JohnathanFL/rust_scrabble
[INFO] finished tweaking git repo https://github.com/JohnathanFL/rust_scrabble
[INFO] tweaked toml for git repo https://github.com/JohnathanFL/rust_scrabble written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/JohnathanFL/rust_scrabble already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55680d17e6504c45084129340a7b2bda84bcd22dbcbdb2d15f380a17fc6fe740
[INFO] running `Command { std: "docker" "start" "-a" "55680d17e6504c45084129340a7b2bda84bcd22dbcbdb2d15f380a17fc6fe740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55680d17e6504c45084129340a7b2bda84bcd22dbcbdb2d15f380a17fc6fe740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55680d17e6504c45084129340a7b2bda84bcd22dbcbdb2d15f380a17fc6fe740", kill_on_drop: false }`
[INFO] [stdout] 55680d17e6504c45084129340a7b2bda84bcd22dbcbdb2d15f380a17fc6fe740
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0da852379dc2a9120fbb311b09264bd82af94cf482a0dc8546e5b9fe7757607c
[INFO] running `Command { std: "docker" "start" "-a" "0da852379dc2a9120fbb311b09264bd82af94cf482a0dc8546e5b9fe7757607c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_scrabble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:63:63
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let choice: i8 = choice.parse::<i8>().unwrap_or_else(|e| {
[INFO] [stdout]    |                                                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         line.trim();
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "0da852379dc2a9120fbb311b09264bd82af94cf482a0dc8546e5b9fe7757607c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da852379dc2a9120fbb311b09264bd82af94cf482a0dc8546e5b9fe7757607c", kill_on_drop: false }`
[INFO] [stdout] 0da852379dc2a9120fbb311b09264bd82af94cf482a0dc8546e5b9fe7757607c
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c086eb01cc3aeb4d5ac38e3bc904717be5b666923c09c6571bf1f0672178dac4
[INFO] running `Command { std: "docker" "start" "-a" "c086eb01cc3aeb4d5ac38e3bc904717be5b666923c09c6571bf1f0672178dac4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_scrabble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:63:63
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let choice: i8 = choice.parse::<i8>().unwrap_or_else(|e| {
[INFO] [stdout]    |                                                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         line.trim();
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c086eb01cc3aeb4d5ac38e3bc904717be5b666923c09c6571bf1f0672178dac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c086eb01cc3aeb4d5ac38e3bc904717be5b666923c09c6571bf1f0672178dac4", kill_on_drop: false }`
[INFO] [stdout] c086eb01cc3aeb4d5ac38e3bc904717be5b666923c09c6571bf1f0672178dac4
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] acf5440435712f00df2f3dc86b4bd88896a35866d65ffe529db0b0565bac70ca
[INFO] running `Command { std: "docker" "start" "-a" "acf5440435712f00df2f3dc86b4bd88896a35866d65ffe529db0b0565bac70ca", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:63:63
[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] 63 |         let choice: i8 = choice.parse::<i8>().unwrap_or_else(|e| {
[INFO] [stdout] 
[INFO] [stderr]    |                                                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         line.trim();
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_scrabble` (bin "rust_scrabble" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_scrabble-2b6ffa95555cb979)
[INFO] running `Command { std: "docker" "inspect" "acf5440435712f00df2f3dc86b4bd88896a35866d65ffe529db0b0565bac70ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acf5440435712f00df2f3dc86b4bd88896a35866d65ffe529db0b0565bac70ca", kill_on_drop: false }`
[INFO] [stdout] acf5440435712f00df2f3dc86b4bd88896a35866d65ffe529db0b0565bac70ca