[INFO] cloning repository https://github.com/Alex-Grimes/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alex-Grimes/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlex-Grimes%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlex-Grimes%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b3bc3aa6b02726242b6080eeda4b234ee10bf29
[INFO] checking Alex-Grimes/rustlings against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlex-Grimes%2Frustlings" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Alex-Grimes/rustlings
[INFO] finished tweaking git repo https://github.com/Alex-Grimes/rustlings
[INFO] tweaked toml for git repo https://github.com/Alex-Grimes/rustlings written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Alex-Grimes/rustlings on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Alex-Grimes/rustlings 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded difflib v0.4.0
[INFO] [stderr]   Downloaded normalize-line-endings v0.3.0
[INFO] [stderr]   Downloaded which v6.0.1
[INFO] [stderr]   Downloaded predicates-core v1.0.6
[INFO] [stderr]   Downloaded predicates v3.1.0
[INFO] [stderr]   Downloaded doc-comment v0.3.3
[INFO] [stderr]   Downloaded termtree v0.4.1
[INFO] [stderr]   Downloaded predicates-tree v1.0.9
[INFO] [stderr]   Downloaded assert_cmd v2.0.14
[INFO] [stderr]   Downloaded console v0.15.8
[INFO] [stderr]   Downloaded indicatif v0.17.8
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded notify-debouncer-mini v0.4.1
[INFO] [stderr]   Downloaded toml_edit v0.22.9
[INFO] [stderr]   Downloaded winnow v0.6.5
[INFO] [stderr]   Downloaded winsafe v0.0.19
[INFO] [stderr]   Downloaded bstr v1.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93f798622f4111cc554c141d671ca6ecdf257bb4245efb5caa2788642aae026a
[INFO] running `Command { std: "docker" "start" "-a" "93f798622f4111cc554c141d671ca6ecdf257bb4245efb5caa2788642aae026a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93f798622f4111cc554c141d671ca6ecdf257bb4245efb5caa2788642aae026a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f798622f4111cc554c141d671ca6ecdf257bb4245efb5caa2788642aae026a", kill_on_drop: false }`
[INFO] [stdout] 93f798622f4111cc554c141d671ca6ecdf257bb4245efb5caa2788642aae026a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f649246e7b7443aedd55edfd5781fb8c884e4f78badfd8a2b1d7902f45c58da
[INFO] running `Command { std: "docker" "start" "-a" "9f649246e7b7443aedd55edfd5781fb8c884e4f78badfd8a2b1d7902f45c58da", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.23
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling assert_cmd v2.0.14
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking notify v6.1.1
[INFO] [stderr]     Checking indicatif v0.17.8
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking notify-debouncer-mini v0.4.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking which v6.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking predicates v3.1.0
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_edit v0.22.9
[INFO] [stderr]     Checking rustlings v5.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/exercise.rs:125:20
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/exercise.rs:125:20
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.01s
[INFO] running `Command { std: "docker" "inspect" "9f649246e7b7443aedd55edfd5781fb8c884e4f78badfd8a2b1d7902f45c58da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f649246e7b7443aedd55edfd5781fb8c884e4f78badfd8a2b1d7902f45c58da", kill_on_drop: false }`
[INFO] [stdout] 9f649246e7b7443aedd55edfd5781fb8c884e4f78badfd8a2b1d7902f45c58da
