[INFO] fetching crate luk 0.1.0...
[INFO] testing luk-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate luk 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate luk 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate luk 0.1.0
[INFO] finished tweaking crates.io crate luk 0.1.0
[INFO] tweaked toml for crates.io crate luk 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate luk 0.1.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.33
[INFO] [stderr]   Downloaded content_inspector v0.2.4
[INFO] [stderr]   Downloaded onig v6.3.1
[INFO] [stderr]   Downloaded flate2 v1.0.22
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[INFO] [stderr]   Downloaded crc32fast v1.3.0
[INFO] [stderr]   Downloaded onig_sys v69.7.1
[INFO] [stderr]   Downloaded serde v1.0.131
[INFO] [stderr]   Downloaded serde_derive v1.0.131
[INFO] [stderr]   Downloaded time v0.3.5
[INFO] [stderr]   Downloaded console v0.10.3
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[INFO] [stderr]   Downloaded shell-words v0.1.0
[INFO] [stderr]   Downloaded ansi_colours v1.0.4
[INFO] [stderr]   Downloaded prettyprint v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99385658125b77a3fad52378229ef1c22d9bd2210f551da854bc617379e9539b
[INFO] running `Command { std: "docker" "start" "-a" "99385658125b77a3fad52378229ef1c22d9bd2210f551da854bc617379e9539b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99385658125b77a3fad52378229ef1c22d9bd2210f551da854bc617379e9539b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99385658125b77a3fad52378229ef1c22d9bd2210f551da854bc617379e9539b", kill_on_drop: false }`
[INFO] [stdout] 99385658125b77a3fad52378229ef1c22d9bd2210f551da854bc617379e9539b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e850506565309c4fb118b2d3ca95fb3cd84e315d19b74efa823dcdad1d5d121a
[INFO] running `Command { std: "docker" "start" "-a" "e850506565309c4fb118b2d3ca95fb3cd84e315d19b74efa823dcdad1d5d121a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_json v1.0.72
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[INFO] [stderr]    Compiling luk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `Command { std: "docker" "inspect" "e850506565309c4fb118b2d3ca95fb3cd84e315d19b74efa823dcdad1d5d121a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e850506565309c4fb118b2d3ca95fb3cd84e315d19b74efa823dcdad1d5d121a", kill_on_drop: false }`
[INFO] [stdout] e850506565309c4fb118b2d3ca95fb3cd84e315d19b74efa823dcdad1d5d121a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3893f2ba1ba9c9408f2ab70ee0cb1cedde236221e70c90ba5dbbdf6ed8e3e75d
[INFO] running `Command { std: "docker" "start" "-a" "3893f2ba1ba9c9408f2ab70ee0cb1cedde236221e70c90ba5dbbdf6ed8e3e75d", kill_on_drop: false }`
[INFO] [stderr]    Compiling luk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:54:58
[INFO] [stdout]    |
[INFO] [stdout] 54 |     find_matches("lorem ipsum\ndolor sit amet", "lorem", &mut result);
[INFO] [stdout]    |     ------------                                         ^^^^^^^^^^^ expected `&str`, found `&mut Vec<_>`
[INFO] [stdout]    |     |
[INFO] [stdout]    |     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note:      expected reference `&str`
[INFO] [stdout]            found mutable reference `&mut Vec<_>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_matches(content: &str, pattern: &str, lang: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^                               ----------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `luk` (bin "luk" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3893f2ba1ba9c9408f2ab70ee0cb1cedde236221e70c90ba5dbbdf6ed8e3e75d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3893f2ba1ba9c9408f2ab70ee0cb1cedde236221e70c90ba5dbbdf6ed8e3e75d", kill_on_drop: false }`
[INFO] [stdout] 3893f2ba1ba9c9408f2ab70ee0cb1cedde236221e70c90ba5dbbdf6ed8e3e75d
