[INFO] cloning repository https://github.com/kyohei-23/rust-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyohei-23/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyohei-23%2Frust-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyohei-23%2Frust-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 94429122c643dabd807f72493db9715980958788 [INFO] checking kyohei-23/rust-learn against try#0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 for pr-147185 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyohei-23%2Frust-learn" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kyohei-23/rust-learn [INFO] finished tweaking git repo https://github.com/kyohei-23/rust-learn [INFO] tweaked toml for git repo https://github.com/kyohei-23/rust-learn written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kyohei-23/rust-learn on toolchain 0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kyohei-23/rust-learn 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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded predicates-tree v1.0.3 [INFO] [stderr] Downloaded predicates v1.0.8 [INFO] [stderr] Downloaded console v0.15.0 [INFO] [stderr] Downloaded serde_derive v1.0.129 [INFO] [stderr] Downloaded filetime v0.2.15 [INFO] [stderr] Downloaded argh_shared v0.1.5 [INFO] [stderr] Downloaded argh_derive v0.1.5 [INFO] [stderr] Downloaded libc v0.2.100 [INFO] [stderr] Downloaded argh v0.1.5 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded serde v1.0.129 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 79ab9df8a1427af467935d7e56b68aad1fc5a424210047c00f09dd21141accae [INFO] running `Command { std: "docker" "start" "-a" "79ab9df8a1427af467935d7e56b68aad1fc5a424210047c00f09dd21141accae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79ab9df8a1427af467935d7e56b68aad1fc5a424210047c00f09dd21141accae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79ab9df8a1427af467935d7e56b68aad1fc5a424210047c00f09dd21141accae", kill_on_drop: false }` [INFO] [stdout] 79ab9df8a1427af467935d7e56b68aad1fc5a424210047c00f09dd21141accae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a7a66865d3830e80273c2636a10ef63126b9de68a32fb577e1a8279a7354f7a [INFO] running `Command { std: "docker" "start" "-a" "9a7a66865d3830e80273c2636a10ef63126b9de68a32fb577e1a8279a7354f7a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Checking regex v1.5.5 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking home v0.5.3 [INFO] [stderr] Checking predicates-tree v1.0.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking filetime v0.2.15 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking console v0.15.0 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking indicatif v0.16.2 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Checking argh v0.1.5 [INFO] [stderr] Checking toml v0.5.9 [INFO] [stderr] Checking rustlings v5.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [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:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.94s [INFO] running `Command { std: "docker" "inspect" "9a7a66865d3830e80273c2636a10ef63126b9de68a32fb577e1a8279a7354f7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a7a66865d3830e80273c2636a10ef63126b9de68a32fb577e1a8279a7354f7a", kill_on_drop: false }` [INFO] [stdout] 9a7a66865d3830e80273c2636a10ef63126b9de68a32fb577e1a8279a7354f7a