[INFO] cloning repository https://github.com/jriffs/first-file-explorer-project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jriffs/first-file-explorer-project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjriffs%2Ffirst-file-explorer-project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjriffs%2Ffirst-file-explorer-project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 421424d993b63c6f37cab5b97f7d61df9c1488ac
[INFO] checking jriffs/first-file-explorer-project against master#89a99936d9e76a50e8df622e7242190841fd871b for pr-156160-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjriffs%2Ffirst-file-explorer-project" "/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/jriffs/first-file-explorer-project
[INFO] finished tweaking git repo https://github.com/jriffs/first-file-explorer-project
[INFO] tweaked toml for git repo https://github.com/jriffs/first-file-explorer-project written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jriffs/first-file-explorer-project on toolchain 89a99936d9e76a50e8df622e7242190841fd871b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+89a99936d9e76a50e8df622e7242190841fd871b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jriffs/first-file-explorer-project 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" "+89a99936d9e76a50e8df622e7242190841fd871b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:fd22e2154e7db748230f413534f3a6d034160c9d2b7c14b90fba4e9bfc1a36d4" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f
[INFO] running `Command { std: "docker" "start" "eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f", 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" "eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f" "/opt/rustwide/cargo-home/bin/cargo" "+89a99936d9e76a50e8df622e7242190841fd871b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f", 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" "eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f" "/opt/rustwide/cargo-home/bin/cargo" "+89a99936d9e76a50e8df622e7242190841fd871b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking first-file-explorer-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn build(args: &'a [String]) -> Result<CliParams, &'static str> {
[INFO] [stdout]    |                     --                     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[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] 18 |     fn build(args: &'a [String]) -> Result<CliParams<'a>, &'static str> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn build(args: &'a [String]) -> Result<CliParams, &'static str> {
[INFO] [stdout]    |                     --                     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[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] 18 |     fn build(args: &'a [String]) -> Result<CliParams<'a>, &'static str> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f", kill_on_drop: false }`
[INFO] [stdout] eb7b2a01a047f3ca0180ca66bb05473f8362abe5f20b11bcfa4e18c65acb716f
