[INFO] cloning repository https://github.com/hardvain/dua
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hardvain/dua" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardvain%2Fdua", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardvain%2Fdua'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d645e48f45f11fdd9a99d6ca38cb1d816947716
[INFO] testing hardvain/dua against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardvain%2Fdua" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hardvain/dua on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hardvain/dua
[INFO] finished tweaking git repo https://github.com/hardvain/dua
[INFO] tweaked toml for git repo https://github.com/hardvain/dua written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/hardvain/dua already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f58ee528e4d51eab4a57726f2180133e6e2796350407980b89ae1a1ae01c3c9
[INFO] running `Command { std: "docker" "start" "-a" "8f58ee528e4d51eab4a57726f2180133e6e2796350407980b89ae1a1ae01c3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f58ee528e4d51eab4a57726f2180133e6e2796350407980b89ae1a1ae01c3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f58ee528e4d51eab4a57726f2180133e6e2796350407980b89ae1a1ae01c3c9", kill_on_drop: false }`
[INFO] [stdout] 8f58ee528e4d51eab4a57726f2180133e6e2796350407980b89ae1a1ae01c3c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbc84bb571a53f50980d3b556598c660f71d10cd54c54ccbb0985bc4b81b4c58
[INFO] running `Command { std: "docker" "start" "-a" "bbc84bb571a53f50980d3b556598c660f71d10cd54c54ccbb0985bc4b81b4c58", kill_on_drop: false }`
[INFO] [stderr]    Compiling dua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Display`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Receiver`, `Sender`
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::mpsc::{Sender, Receiver};
[INFO] [stdout]   |                       ^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Sender<Result<Vec<File>, _>>` cannot be shared between threads safely
[INFO] [stdout]    --> src/main.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |             thread::spawn(|| {
[INFO] [stdout]     |             ^^^^^^^^^^^^^ `Sender<Result<Vec<File>, _>>` cannot be shared between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sync` is not implemented for `Sender<Result<Vec<File>, _>>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Send` for `&Sender<Result<Vec<File>, _>>`
[INFO] [stdout]     = note: required because it appears within the type `[closure@src/main.rs:29:27: 32:14]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dua`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "bbc84bb571a53f50980d3b556598c660f71d10cd54c54ccbb0985bc4b81b4c58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc84bb571a53f50980d3b556598c660f71d10cd54c54ccbb0985bc4b81b4c58", kill_on_drop: false }`
[INFO] [stdout] bbc84bb571a53f50980d3b556598c660f71d10cd54c54ccbb0985bc4b81b4c58
