[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-Wistaper", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-Wistaper'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c0e6bc746a1b27058f4dc58b4d1c90f4395ef7a7 [INFO] checking LearningOS/rust-rustlings-2023-autumn-Wistaper against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-Wistaper" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Wistaper 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded hermit-abi v0.3.3 [INFO] [stderr] Downloaded smallvec v1.11.1 [INFO] [stderr] Downloaded serde v1.0.189 [INFO] [stderr] Downloaded argh_derive v0.1.12 [INFO] [stderr] Downloaded argh_shared v0.1.12 [INFO] [stderr] Downloaded filetime v0.2.22 [INFO] [stderr] Downloaded argh v0.1.12 [INFO] [stderr] Downloaded socket2 v0.5.4 [INFO] [stderr] Downloaded serde_derive v1.0.189 [INFO] [stderr] Downloaded proc-macro2 v1.0.69 [INFO] [stderr] Downloaded serde_json v1.0.107 [INFO] [stderr] Downloaded syn v2.0.38 [INFO] [stderr] Downloaded regex v1.10.1 [INFO] [stderr] Downloaded gimli v0.28.0 [INFO] [stderr] Downloaded object v0.32.1 [INFO] [stderr] Downloaded regex-automata v0.4.2 [INFO] [stderr] Downloaded tokio v1.33.0 [INFO] [stderr] Downloaded libc v0.2.149 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a008885a49d1d58c53c53e7d9c45ba6182e9be4ff028e9ff7e2b08f9cea98351 [INFO] running `Command { std: "docker" "start" "-a" "a008885a49d1d58c53c53e7d9c45ba6182e9be4ff028e9ff7e2b08f9cea98351", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a008885a49d1d58c53c53e7d9c45ba6182e9be4ff028e9ff7e2b08f9cea98351", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a008885a49d1d58c53c53e7d9c45ba6182e9be4ff028e9ff7e2b08f9cea98351", kill_on_drop: false }` [INFO] [stdout] a008885a49d1d58c53c53e7d9c45ba6182e9be4ff028e9ff7e2b08f9cea98351 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1d1d6ab8b470ece207d8b15832d2db0752815e1c8faebf92b9bca257089955a [INFO] running `Command { std: "docker" "start" "-a" "f1d1d6ab8b470ece207d8b15832d2db0752815e1c8faebf92b9bca257089955a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling serde v1.0.189 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking smallvec v1.11.1 [INFO] [stderr] Checking walkdir v2.4.0 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking parking_lot_core v0.9.8 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking console v0.15.7 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking filetime v0.2.22 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking regex-automata v0.4.2 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Checking regex v1.10.1 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking indicatif v0.16.2 [INFO] [stderr] Compiling serde_derive v1.0.189 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking tokio v1.33.0 [INFO] [stderr] Checking argh_shared v0.1.12 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Checking escargot v0.4.0 [INFO] [stderr] Compiling argh_derive v0.1.12 [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Checking argh v0.1.12 [INFO] [stderr] Checking rustlings v5.5.1 (/opt/rustwide/workdir) [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 17.05s [INFO] running `Command { std: "docker" "inspect" "f1d1d6ab8b470ece207d8b15832d2db0752815e1c8faebf92b9bca257089955a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1d1d6ab8b470ece207d8b15832d2db0752815e1c8faebf92b9bca257089955a", kill_on_drop: false }` [INFO] [stdout] f1d1d6ab8b470ece207d8b15832d2db0752815e1c8faebf92b9bca257089955a