[INFO] cloning repository https://github.com/levysj/zero_width
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/levysj/zero_width" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevysj%2Fzero_width", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevysj%2Fzero_width'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75f3904ef51824a116cd5347edaead08a6bc0ae8
[INFO] checking levysj/zero_width against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevysj%2Fzero_width" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/levysj/zero_width on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/levysj/zero_width
[INFO] finished tweaking git repo https://github.com/levysj/zero_width
[INFO] tweaked toml for git repo https://github.com/levysj/zero_width written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/levysj/zero_width 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c62c1b5cac2ac2555ab810fa8b49e2b8025854c9101b2061e2b5f2b061054b0
[INFO] running `Command { std: "docker" "start" "-a" "2c62c1b5cac2ac2555ab810fa8b49e2b8025854c9101b2061e2b5f2b061054b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c62c1b5cac2ac2555ab810fa8b49e2b8025854c9101b2061e2b5f2b061054b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c62c1b5cac2ac2555ab810fa8b49e2b8025854c9101b2061e2b5f2b061054b0", kill_on_drop: false }`
[INFO] [stdout] 2c62c1b5cac2ac2555ab810fa8b49e2b8025854c9101b2061e2b5f2b061054b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac4ad00d6edf4f85b87ee8e13b2ae0374000fa8cd80b0b1cdab5909f117e37eb
[INFO] running `Command { std: "docker" "start" "-a" "ac4ad00d6edf4f85b87ee8e13b2ae0374000fa8cd80b0b1cdab5909f117e37eb", kill_on_drop: false }`
[INFO] [stderr]     Checking zero_width v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::Mutex`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Mutex`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/zero_width_fun.rs:55:45
[INFO] [stdout]    |
[INFO] [stdout] 55 |         Err(e) => Err(ZeroWidthError::new(e.description())),
[INFO] [stdout]    |                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/zero_width_fun.rs:55:45
[INFO] [stdout]    |
[INFO] [stdout] 55 |         Err(e) => Err(ZeroWidthError::new(e.description())),
[INFO] [stdout]    |                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `ret`
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut ret: Vec<String> = Vec::new();
[INFO] [stdout]    |         ------- move occurs because `ret` has type `Vec<String>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 67 |         let handle = thread::spawn(move || {
[INFO] [stdout]    |                                    ------- value moved into closure here, in previous iteration of loop
[INFO] [stdout] ...
[INFO] [stdout] 78 |     ret
[INFO] [stdout]    |     ^^^ value used here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zero_width` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0382]: use of moved value: `ret`
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut ret: Vec<String> = Vec::new();
[INFO] [stdout]    |         ------- move occurs because `ret` has type `Vec<String>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 67 |         let handle = thread::spawn(move || {
[INFO] [stdout]    |                                    ------- value moved into closure here, in previous iteration of loop
[INFO] [stdout] ...
[INFO] [stdout] 78 |     ret
[INFO] [stdout]    |     ^^^ value used here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zero_width` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ac4ad00d6edf4f85b87ee8e13b2ae0374000fa8cd80b0b1cdab5909f117e37eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4ad00d6edf4f85b87ee8e13b2ae0374000fa8cd80b0b1cdab5909f117e37eb", kill_on_drop: false }`
[INFO] [stdout] ac4ad00d6edf4f85b87ee8e13b2ae0374000fa8cd80b0b1cdab5909f117e37eb