[INFO] cloning repository https://github.com/dimkk/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dimkk/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimkk%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimkk%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3e8ecbc337b0cc7b0988b5767a27b8064104473a [INFO] checking dimkk/rustlings against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimkk%2Frustlings" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/dimkk/rustlings [INFO] finished tweaking git repo https://github.com/dimkk/rustlings [INFO] tweaked toml for git repo https://github.com/dimkk/rustlings written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dimkk/rustlings on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dimkk/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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking dimkk/rustlings against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimkk%2Frustlings" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/dimkk/rustlings [INFO] finished tweaking git repo https://github.com/dimkk/rustlings [INFO] tweaked toml for git repo https://github.com/dimkk/rustlings written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dimkk/rustlings on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dimkk/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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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 predicates-tree v1.0.3 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded argh_shared v0.1.5 [INFO] [stderr] Downloaded serde v1.0.129 [INFO] [stderr] Downloaded argh_derive v0.1.5 [INFO] [stderr] Downloaded serde_derive v1.0.129 [INFO] [stderr] Downloaded argh v0.1.5 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded number_prefix v0.2.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7e0c35a5767948f6405db45e3e24d7fdb3789bd333bdb0f53cb45f56a30fbce2 [INFO] running `Command { std: "docker" "start" "-a" "7e0c35a5767948f6405db45e3e24d7fdb3789bd333bdb0f53cb45f56a30fbce2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7e0c35a5767948f6405db45e3e24d7fdb3789bd333bdb0f53cb45f56a30fbce2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e0c35a5767948f6405db45e3e24d7fdb3789bd333bdb0f53cb45f56a30fbce2", kill_on_drop: false }` [INFO] [stdout] 7e0c35a5767948f6405db45e3e24d7fdb3789bd333bdb0f53cb45f56a30fbce2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3808bc3a5c8b7128257eddf421f3c4886393c0217d58da187190c05f89bff96a [INFO] running `Command { std: "docker" "start" "-a" "3808bc3a5c8b7128257eddf421f3c4886393c0217d58da187190c05f89bff96a", kill_on_drop: false }` [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 v1.0.66 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termios v0.3.3 [INFO] [stderr] Checking console v0.14.1 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking filetime v0.2.15 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking predicates-tree v1.0.3 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Checking indicatif v0.10.3 [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 v0.4.10 [INFO] [stderr] Checking rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking escargot v0.4.0 [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 11.11s [INFO] running `Command { std: "docker" "inspect" "3808bc3a5c8b7128257eddf421f3c4886393c0217d58da187190c05f89bff96a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3808bc3a5c8b7128257eddf421f3c4886393c0217d58da187190c05f89bff96a", kill_on_drop: false }` [INFO] [stdout] 3808bc3a5c8b7128257eddf421f3c4886393c0217d58da187190c05f89bff96a