[INFO] cloning repository https://github.com/jusexton/datastructu-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jusexton/datastructu-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusexton%2Fdatastructu-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusexton%2Fdatastructu-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1a6921c9d09f33ec025ad621e66cf7904fef38f
[INFO] checking jusexton/datastructu-rs against f4dd856795debe636f2ba39a900f162f5abeb7e8 for pr-160904
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusexton%2Fdatastructu-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jusexton/datastructu-rs
[INFO] finished tweaking git repo https://github.com/jusexton/datastructu-rs
[INFO] tweaked toml for git repo https://github.com/jusexton/datastructu-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jusexton/datastructu-rs on toolchain f4dd856795debe636f2ba39a900f162f5abeb7e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jusexton/datastructu-rs 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" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking jusexton/datastructu-rs against f4dd856795debe636f2ba39a900f162f5abeb7e8 for pr-160904
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusexton%2Fdatastructu-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jusexton/datastructu-rs
[INFO] finished tweaking git repo https://github.com/jusexton/datastructu-rs
[INFO] tweaked toml for git repo https://github.com/jusexton/datastructu-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jusexton/datastructu-rs on toolchain f4dd856795debe636f2ba39a900f162f5abeb7e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jusexton/datastructu-rs 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" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de
[INFO] running `Command { std: "docker" "start" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de" "/opt/rustwide/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de" "/opt/rustwide/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking datastructu-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/trie.rs:71:59
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn prefix_match<'a>(&'a self, prefix: &'a str) -> PrefixMatches {
[INFO] [stdout]    |                              --                --         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                              |                 |
[INFO] [stdout]    |                              |                 the lifetime is named here
[INFO] [stdout]    |                              the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn prefix_match<'a>(&'a self, prefix: &'a str) -> PrefixMatches<'a> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/trie.rs:71:59
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn prefix_match<'a>(&'a self, prefix: &'a str) -> PrefixMatches {
[INFO] [stdout]    |                              --                --         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                              |                 |
[INFO] [stdout]    |                              |                 the lifetime is named here
[INFO] [stdout]    |                              the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn prefix_match<'a>(&'a self, prefix: &'a str) -> PrefixMatches<'a> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de", kill_on_drop: false }`
[INFO] [stdout] ef7e612510e634bab73f02644aa9c797f4ddec5929c82e2c90e22830ce7914de
