[INFO] cloning repository https://github.com/gavynriebau/scotext
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gavynriebau/scotext" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavynriebau%2Fscotext", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavynriebau%2Fscotext'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 652deb3ff6ed013bd20063f919749a554cd6162f
[INFO] checking gavynriebau/scotext against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavynriebau%2Fscotext" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gavynriebau/scotext on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gavynriebau/scotext
[INFO] finished tweaking git repo https://github.com/gavynriebau/scotext
[INFO] tweaked toml for git repo https://github.com/gavynriebau/scotext written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gavynriebau/scotext 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.4
[INFO] [stderr]   Downloaded thread-id v3.1.0
[INFO] [stderr]   Downloaded xor-utils v0.5.0
[INFO] [stderr]   Downloaded atty v0.2.2
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded vec_map v0.8.0
[INFO] [stderr]   Downloaded thread_local v0.3.3
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded bitflags v0.8.2
[INFO] [stderr]   Downloaded clap v2.24.2
[INFO] [stderr]   Downloaded term_size v0.3.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.0
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c376dc668e1432fb82395eb8b9e0a001de8661ac7b4cfb1b39218957990750f
[INFO] running `Command { std: "docker" "start" "-a" "5c376dc668e1432fb82395eb8b9e0a001de8661ac7b4cfb1b39218957990750f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c376dc668e1432fb82395eb8b9e0a001de8661ac7b4cfb1b39218957990750f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c376dc668e1432fb82395eb8b9e0a001de8661ac7b4cfb1b39218957990750f", kill_on_drop: false }`
[INFO] [stdout] 5c376dc668e1432fb82395eb8b9e0a001de8661ac7b4cfb1b39218957990750f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0e268b44f7752b4d1e4edecc26e5ad863cd2462feedd11f35aa68fb4be40f13
[INFO] running `Command { std: "docker" "start" "-a" "a0e268b44f7752b4d1e4edecc26e5ad863cd2462feedd11f35aa68fb4be40f13", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking xor-utils v0.5.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking scotext v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     input.to_lowercase();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = input.to_lowercase();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     input.to_lowercase();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = input.to_lowercase();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "a0e268b44f7752b4d1e4edecc26e5ad863cd2462feedd11f35aa68fb4be40f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0e268b44f7752b4d1e4edecc26e5ad863cd2462feedd11f35aa68fb4be40f13", kill_on_drop: false }`
[INFO] [stdout] a0e268b44f7752b4d1e4edecc26e5ad863cd2462feedd11f35aa68fb4be40f13