[INFO] cloning repository https://github.com/Enselic/hello-world-loop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Enselic/hello-world-loop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEnselic%2Fhello-world-loop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEnselic%2Fhello-world-loop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77eded9cbf76f01782d7cede540d1513c7a84c56
[INFO] checking Enselic/hello-world-loop against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEnselic%2Fhello-world-loop" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Enselic/hello-world-loop
[INFO] finished tweaking git repo https://github.com/Enselic/hello-world-loop
[INFO] tweaked toml for git repo https://github.com/Enselic/hello-world-loop written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Enselic/hello-world-loop on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Enselic/hello-world-loop 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" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b925cfd75c56c884520869a78b320dbb1cc2a3303aa98eed6245611e9c2a9e7b
[INFO] running `Command { std: "docker" "start" "-a" "b925cfd75c56c884520869a78b320dbb1cc2a3303aa98eed6245611e9c2a9e7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b925cfd75c56c884520869a78b320dbb1cc2a3303aa98eed6245611e9c2a9e7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b925cfd75c56c884520869a78b320dbb1cc2a3303aa98eed6245611e9c2a9e7b", kill_on_drop: false }`
[INFO] [stdout] b925cfd75c56c884520869a78b320dbb1cc2a3303aa98eed6245611e9c2a9e7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df17de58d3d43fb8f5d5d3c6c7c21b43db2f92b94d754d2123dfdef6216e066d
[INFO] running `Command { std: "docker" "start" "-a" "df17de58d3d43fb8f5d5d3c6c7c21b43db2f92b94d754d2123dfdef6216e066d", kill_on_drop: false }`
[INFO] [stderr]     Checking hello-world-loop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `on_broken_pipe` in `io`
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[std::io::on_broken_pipe]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^ could not find `on_broken_pipe` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `on_broken_pipe` in `io`
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[std::io::on_broken_pipe]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^ could not find `on_broken_pipe` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `OnBrokenPipe` in `io`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     std::io::OnBrokenPipe::Inherit
[INFO] [stdout]   |              ^^^^^^^^^^^^ could not find `OnBrokenPipe` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `OnBrokenPipe` in module `std::io`
[INFO] [stdout]  --> src/main.rs:5:33
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn on_broken_pipe() -> std::io::OnBrokenPipe {
[INFO] [stdout]   |                                 ^^^^^^^^^^^^ not found in `std::io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `OnBrokenPipe` in `io`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     std::io::OnBrokenPipe::Inherit
[INFO] [stdout]   |              ^^^^^^^^^^^^ could not find `OnBrokenPipe` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `OnBrokenPipe` in module `std::io`
[INFO] [stdout]  --> src/main.rs:5:33
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn on_broken_pipe() -> std::io::OnBrokenPipe {
[INFO] [stdout]   |                                 ^^^^^^^^^^^^ not found in `std::io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `on_broken_pipe`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(on_broken_pipe)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `on_broken_pipe`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(on_broken_pipe)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello-world-loop` (bin "hello-world-loop") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hello-world-loop` (bin "hello-world-loop" test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "df17de58d3d43fb8f5d5d3c6c7c21b43db2f92b94d754d2123dfdef6216e066d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df17de58d3d43fb8f5d5d3c6c7c21b43db2f92b94d754d2123dfdef6216e066d", kill_on_drop: false }`
[INFO] [stdout] df17de58d3d43fb8f5d5d3c6c7c21b43db2f92b94d754d2123dfdef6216e066d