[INFO] fetching crate exercism 0.1.9...
[INFO] checking exercism-0.1.9 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate exercism 0.1.9 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate exercism 0.1.9 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exercism 0.1.9
[INFO] finished tweaking crates.io crate exercism 0.1.9
[INFO] tweaked toml for crates.io crate exercism 0.1.9 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate exercism 0.1.9 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1eb02a893a8e84c82093048763256d13498517f456f1b3f58f6d91c7ab23f4d
[INFO] running `Command { std: "docker" "start" "-a" "d1eb02a893a8e84c82093048763256d13498517f456f1b3f58f6d91c7ab23f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1eb02a893a8e84c82093048763256d13498517f456f1b3f58f6d91c7ab23f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1eb02a893a8e84c82093048763256d13498517f456f1b3f58f6d91c7ab23f4d", kill_on_drop: false }`
[INFO] [stdout] d1eb02a893a8e84c82093048763256d13498517f456f1b3f58f6d91c7ab23f4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 742acb3c4ca67d671dbfe62dd56555897123e3ef6af93970ba3460ea7f3c101b
[INFO] running `Command { std: "docker" "start" "-a" "742acb3c4ca67d671dbfe62dd56555897123e3ef6af93970ba3460ea7f3c101b", kill_on_drop: false }`
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking exercism v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]  --> src/alphametics.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut iter = input.clone().split("==");
[INFO] [stdout]   |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]   |
[INFO] [stdout]   = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]   = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]  --> src/alphametics.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut iter = input.clone().split("==");
[INFO] [stdout]   |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]   |
[INFO] [stdout]   = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]   = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "742acb3c4ca67d671dbfe62dd56555897123e3ef6af93970ba3460ea7f3c101b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "742acb3c4ca67d671dbfe62dd56555897123e3ef6af93970ba3460ea7f3c101b", kill_on_drop: false }`
[INFO] [stdout] 742acb3c4ca67d671dbfe62dd56555897123e3ef6af93970ba3460ea7f3c101b
