[INFO] cloning repository https://github.com/uninitlzd/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uninitlzd/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funinitlzd%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funinitlzd%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cbf7a569ae895e11309f5693380befdc4c417952 [INFO] checking uninitlzd/rustlings against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funinitlzd%2Frustlings" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/uninitlzd/rustlings [INFO] finished tweaking git repo https://github.com/uninitlzd/rustlings [INFO] tweaked toml for git repo https://github.com/uninitlzd/rustlings written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/uninitlzd/rustlings on toolchain e117153a45c546e883c1f91d82611775fcaeffe0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/uninitlzd/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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded notify-debouncer-mini v0.4.1 [INFO] [stderr] Downloaded which v6.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dd329e3ff8dc86428e136a6169ef034ad7ac24ef2d77757de6a2a6a338330713 [INFO] running `Command { std: "docker" "start" "-a" "dd329e3ff8dc86428e136a6169ef034ad7ac24ef2d77757de6a2a6a338330713", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dd329e3ff8dc86428e136a6169ef034ad7ac24ef2d77757de6a2a6a338330713", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd329e3ff8dc86428e136a6169ef034ad7ac24ef2d77757de6a2a6a338330713", kill_on_drop: false }` [INFO] [stdout] dd329e3ff8dc86428e136a6169ef034ad7ac24ef2d77757de6a2a6a338330713 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7524032d8c3f3d999998d8dfd8b036940bfd12cbaa4ca7bc44824428c8cab2bc [INFO] running `Command { std: "docker" "start" "-a" "7524032d8c3f3d999998d8dfd8b036940bfd12cbaa4ca7bc44824428c8cab2bc", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling rustix v0.38.32 [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] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking filetime v0.2.23 [INFO] [stderr] Compiling syn v2.0.55 [INFO] [stderr] Checking winnow v0.6.5 [INFO] [stderr] Checking home v0.5.9 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking shlex v1.3.0 [INFO] [stderr] Checking inotify v0.9.6 [INFO] [stderr] Checking console v0.15.8 [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stderr] Checking notify v6.1.1 [INFO] [stderr] Checking indicatif v0.17.8 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking notify-debouncer-mini v0.4.1 [INFO] [stderr] Checking float-cmp v0.9.0 [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 assert_cmd v2.0.14 [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.27s [INFO] running `Command { std: "docker" "inspect" "7524032d8c3f3d999998d8dfd8b036940bfd12cbaa4ca7bc44824428c8cab2bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7524032d8c3f3d999998d8dfd8b036940bfd12cbaa4ca7bc44824428c8cab2bc", kill_on_drop: false }` [INFO] [stdout] 7524032d8c3f3d999998d8dfd8b036940bfd12cbaa4ca7bc44824428c8cab2bc