[INFO] cloning repository https://github.com/livstyle/node-rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/livstyle/node-rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flivstyle%2Fnode-rustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flivstyle%2Fnode-rustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b1ba85d4d5e966f308ca117fb20c4122f5e7a04
[INFO] checking livstyle/node-rustlings against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flivstyle%2Fnode-rustlings" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/livstyle/node-rustlings
[INFO] finished tweaking git repo https://github.com/livstyle/node-rustlings
[INFO] tweaked toml for git repo https://github.com/livstyle/node-rustlings written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/livstyle/node-rustlings on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/livstyle/node-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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn-mid v0.5.3
[INFO] [stderr]   Downloaded predicates-core v1.0.3
[INFO] [stderr]   Downloaded filetime v0.2.18
[INFO] [stderr]   Downloaded neon-macros v0.10.1
[INFO] [stderr]   Downloaded predicates-tree v1.0.5
[INFO] [stderr]   Downloaded home v0.5.4
[INFO] [stderr]   Downloaded termtree v0.2.4
[INFO] [stderr]   Downloaded argh_shared v0.1.9
[INFO] [stderr]   Downloaded neon-build v0.10.1
[INFO] [stderr]   Downloaded predicates v2.1.1
[INFO] [stderr]   Downloaded console v0.15.2
[INFO] [stderr]   Downloaded argh_derive v0.1.9
[INFO] [stderr]   Downloaded argh v0.1.9
[INFO] [stderr]   Downloaded assert_cmd v2.0.5
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] [stderr]   Downloaded neon-runtime v0.10.1
[INFO] [stderr]   Downloaded neon v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ffad4cb7a227dd5ab0a289d7ea092511e72edfdb2351f7364b17b67de95c53d
[INFO] running `Command { std: "docker" "start" "-a" "9ffad4cb7a227dd5ab0a289d7ea092511e72edfdb2351f7364b17b67de95c53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ffad4cb7a227dd5ab0a289d7ea092511e72edfdb2351f7364b17b67de95c53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ffad4cb7a227dd5ab0a289d7ea092511e72edfdb2351f7364b17b67de95c53d", kill_on_drop: false }`
[INFO] [stdout] 9ffad4cb7a227dd5ab0a289d7ea092511e72edfdb2351f7364b17b67de95c53d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2829c0372df4f2e5b2b29a12842aaac8a0f7908782be6d5c7a820e637862aad7
[INFO] running `Command { std: "docker" "start" "-a" "2829c0372df4f2e5b2b29a12842aaac8a0f7908782be6d5c7a820e637862aad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling neon-build v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling argh_shared v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking neon-runtime v0.10.1
[INFO] [stderr]    Compiling neon v0.10.1
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking home v0.5.4
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.38
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking filetime v0.2.18
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking console v0.15.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking assert_cmd v2.0.5
[INFO] [stderr]    Compiling syn-mid v0.5.3
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling neon-macros v0.10.1
[INFO] [stderr]    Compiling argh_derive v0.1.9
[INFO] [stderr]     Checking argh v0.1.9
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking rustlings v0.1.0 (/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<CompiledExercise, ExerciseOutput> {
[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<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[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<CompiledExercise, ExerciseOutput> {
[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<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.81s
[INFO] running `Command { std: "docker" "inspect" "2829c0372df4f2e5b2b29a12842aaac8a0f7908782be6d5c7a820e637862aad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2829c0372df4f2e5b2b29a12842aaac8a0f7908782be6d5c7a820e637862aad7", kill_on_drop: false }`
[INFO] [stdout] 2829c0372df4f2e5b2b29a12842aaac8a0f7908782be6d5c7a820e637862aad7
