[INFO] cloning repository https://github.com/Yeeyooo/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yeeyooo/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYeeyooo%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYeeyooo%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7610ac83ce853299891ee9dd149b08b63f33724f [INFO] checking Yeeyooo/rustlings/7610ac83ce853299891ee9dd149b08b63f33724f against master#217cb73577ed6f30a2005dd75bab01d23ec4cd60 for pr-148939 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYeeyooo%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/Yeeyooo/rustlings [INFO] finished tweaking git repo https://github.com/Yeeyooo/rustlings [INFO] tweaked toml for git repo https://github.com/Yeeyooo/rustlings written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Yeeyooo/rustlings on toolchain 217cb73577ed6f30a2005dd75bab01d23ec4cd60 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Yeeyooo/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" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] afd709d4af9bb5f2503260a2066bfaa18451e205cb846a70f3ded44c53dccaa3 [INFO] running `Command { std: "docker" "start" "-a" "afd709d4af9bb5f2503260a2066bfaa18451e205cb846a70f3ded44c53dccaa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "afd709d4af9bb5f2503260a2066bfaa18451e205cb846a70f3ded44c53dccaa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "afd709d4af9bb5f2503260a2066bfaa18451e205cb846a70f3ded44c53dccaa3", kill_on_drop: false }` [INFO] [stdout] afd709d4af9bb5f2503260a2066bfaa18451e205cb846a70f3ded44c53dccaa3 [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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 19f2f3c83cdf20e275291df8860bf2ba190d752db04257107dc0a2e31fd1b551 [INFO] running `Command { std: "docker" "start" "-a" "19f2f3c83cdf20e275291df8860bf2ba190d752db04257107dc0a2e31fd1b551", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Checking regex-syntax v0.7.4 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking aho-corasick v1.0.2 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking ryu v1.0.14 [INFO] [stderr] Checking itoa v1.0.8 [INFO] [stderr] Checking parking_lot_core v0.9.8 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Checking predicates-core v1.0.6 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking console v0.15.7 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking filetime v0.2.21 [INFO] [stderr] Checking termtree v0.4.1 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking pin-project-lite v0.2.10 [INFO] [stderr] Checking home v0.5.5 [INFO] [stderr] Checking predicates-tree v1.0.9 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Checking regex-automata v0.3.3 [INFO] [stderr] Compiling argh_derive v0.1.10 [INFO] [stderr] Checking argh v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking regex v1.9.1 [INFO] [stderr] Checking indicatif v0.16.2 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Checking rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | 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] 113 | 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:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | 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] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.19s [INFO] running `Command { std: "docker" "inspect" "19f2f3c83cdf20e275291df8860bf2ba190d752db04257107dc0a2e31fd1b551", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19f2f3c83cdf20e275291df8860bf2ba190d752db04257107dc0a2e31fd1b551", kill_on_drop: false }` [INFO] [stdout] 19f2f3c83cdf20e275291df8860bf2ba190d752db04257107dc0a2e31fd1b551