[INFO] cloning repository https://github.com/studoot/duplicate-finder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/studoot/duplicate-finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudoot%2Fduplicate-finder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudoot%2Fduplicate-finder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95d35536aaa591fcefd042e7f30d9b535a9c2ea2
[INFO] checking studoot/duplicate-finder against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudoot%2Fduplicate-finder" "/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/studoot/duplicate-finder
[INFO] finished tweaking git repo https://github.com/studoot/duplicate-finder
[INFO] tweaked toml for git repo https://github.com/studoot/duplicate-finder written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/studoot/duplicate-finder on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/studoot/duplicate-finder 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b68a7608cc5a04f01ebec231f022cb570a7f9d7317a2b30319c7cda8fa252ce1
[INFO] running `Command { std: "docker" "start" "-a" "b68a7608cc5a04f01ebec231f022cb570a7f9d7317a2b30319c7cda8fa252ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b68a7608cc5a04f01ebec231f022cb570a7f9d7317a2b30319c7cda8fa252ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b68a7608cc5a04f01ebec231f022cb570a7f9d7317a2b30319c7cda8fa252ce1", kill_on_drop: false }`
[INFO] [stdout] b68a7608cc5a04f01ebec231f022cb570a7f9d7317a2b30319c7cda8fa252ce1
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 344aea1d11ac9d3136a1c9b8fe4e82e7a24f111d9518088e97c6cbc6c258d14a
[INFO] running `Command { std: "docker" "start" "-a" "344aea1d11ac9d3136a1c9b8fe4e82e7a24f111d9518088e97c6cbc6c258d14a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking multimap v0.8.1
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking duplicate-finder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `output` is never used
[INFO] [stdout]   --> src/output/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Outputter {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 23 |     fn output(&self, stream: &mut dyn Write, d : &Duplicates) -> ();
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     #[structopt(name = "directory", help = "Directory tree root(s)", required = true)]
[INFO] [stdout] 21 | |     input:
[INFO] [stdout] 22 | |         Vec<String>,
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/duplicate_finder.rs:36:50
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn collect_duplicates_par(possible_dups: &Vec<PathBuf>) -> Duplicates {
[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] 36 |     pub fn collect_duplicates_par(possible_dups: &Vec<PathBuf>) -> Duplicates<'_> {
[INFO] [stdout]    |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `duplicate-finder` (bin "duplicate-finder") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `output` is never used
[INFO] [stdout]   --> src/output/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Outputter {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 23 |     fn output(&self, stream: &mut dyn Write, d : &Duplicates) -> ();
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     #[structopt(name = "directory", help = "Directory tree root(s)", required = true)]
[INFO] [stdout] 21 | |     input:
[INFO] [stdout] 22 | |         Vec<String>,
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/duplicate_finder.rs:36:50
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn collect_duplicates_par(possible_dups: &Vec<PathBuf>) -> Duplicates {
[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] 36 |     pub fn collect_duplicates_par(possible_dups: &Vec<PathBuf>) -> Duplicates<'_> {
[INFO] [stdout]    |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `duplicate-finder` (bin "duplicate-finder" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "344aea1d11ac9d3136a1c9b8fe4e82e7a24f111d9518088e97c6cbc6c258d14a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "344aea1d11ac9d3136a1c9b8fe4e82e7a24f111d9518088e97c6cbc6c258d14a", kill_on_drop: false }`
[INFO] [stdout] 344aea1d11ac9d3136a1c9b8fe4e82e7a24f111d9518088e97c6cbc6c258d14a
