[INFO] fetching crate op8d_lexemizer 0.1.1...
[INFO] checking op8d_lexemizer-0.1.1 against try#21cad1f647cfd05a566220f933edd88a53e50bcf for pr-129249-1
[INFO] extracting crate op8d_lexemizer 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate op8d_lexemizer 0.1.1
[INFO] finished tweaking crates.io crate op8d_lexemizer 0.1.1
[INFO] tweaked toml for crates.io crate op8d_lexemizer 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate op8d_lexemizer 0.1.1 on toolchain 21cad1f647cfd05a566220f933edd88a53e50bcf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate op8d_lexemizer 0.1.1 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" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688
[INFO] running `Command { std: "docker" "start" "9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking op8d_lexemizer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/rust_2018/lexeme.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |             snippet: "yup".into(),
[INFO] [stdout]     |                      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<&str as Into<&str>::into(val) to avoid triggering this lint
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `op8d_lexemizer` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688", kill_on_drop: false }`
[INFO] [stdout] 9782f247650d180a8d1dc737a92e06f5322d95796da13082dec391185d3f3688