[INFO] cloning repository https://github.com/Wepeel/gulprs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Wepeel/gulprs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWepeel%2Fgulprs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWepeel%2Fgulprs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f7791b43f10524b8581ea9f6e2cb5e64c6b14c1
[INFO] testing Wepeel/gulprs against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWepeel%2Fgulprs" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Wepeel/gulprs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Wepeel/gulprs
[INFO] finished tweaking git repo https://github.com/Wepeel/gulprs
[INFO] tweaked toml for git repo https://github.com/Wepeel/gulprs written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/Wepeel/gulprs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99b1018cbfd9fe588d2df45d8eabb2280a9b3c6c62247f4e2aeeae6c708fe9e0
[INFO] running `Command { std: "docker" "start" "-a" "99b1018cbfd9fe588d2df45d8eabb2280a9b3c6c62247f4e2aeeae6c708fe9e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99b1018cbfd9fe588d2df45d8eabb2280a9b3c6c62247f4e2aeeae6c708fe9e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b1018cbfd9fe588d2df45d8eabb2280a9b3c6c62247f4e2aeeae6c708fe9e0", kill_on_drop: false }`
[INFO] [stdout] 99b1018cbfd9fe588d2df45d8eabb2280a9b3c6c62247f4e2aeeae6c708fe9e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c3900cfe6a54f5dc5632cc9270d6fee89ccb2ed5ae05e518f185cc83771dbe8
[INFO] running `Command { std: "docker" "start" "-a" "4c3900cfe6a54f5dc5632cc9270d6fee89ccb2ed5ae05e518f185cc83771dbe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling gulp-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_stream)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::stream::Stream`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::stream::Stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gulp-rs` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4c3900cfe6a54f5dc5632cc9270d6fee89ccb2ed5ae05e518f185cc83771dbe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c3900cfe6a54f5dc5632cc9270d6fee89ccb2ed5ae05e518f185cc83771dbe8", kill_on_drop: false }`
[INFO] [stdout] 4c3900cfe6a54f5dc5632cc9270d6fee89ccb2ed5ae05e518f185cc83771dbe8
