[INFO] cloning repository https://github.com/gterzian/workflow_executor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gterzian/workflow_executor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgterzian%2Fworkflow_executor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgterzian%2Fworkflow_executor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0ce8e2068ae16b118de72d48794887fe454ee6d
[INFO] checking gterzian/workflow_executor against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgterzian%2Fworkflow_executor" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gterzian/workflow_executor on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/gterzian/workflow_executor
[INFO] finished tweaking git repo https://github.com/gterzian/workflow_executor
[INFO] tweaked toml for git repo https://github.com/gterzian/workflow_executor written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/gterzian/workflow_executor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc08dbf79ed4c53780a5439e36f14c6525e8aa6b8f08a0d3d8295666c43abdf0
[INFO] running `Command { std: "docker" "start" "-a" "fc08dbf79ed4c53780a5439e36f14c6525e8aa6b8f08a0d3d8295666c43abdf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc08dbf79ed4c53780a5439e36f14c6525e8aa6b8f08a0d3d8295666c43abdf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc08dbf79ed4c53780a5439e36f14c6525e8aa6b8f08a0d3d8295666c43abdf0", kill_on_drop: false }`
[INFO] [stdout] fc08dbf79ed4c53780a5439e36f14c6525e8aa6b8f08a0d3d8295666c43abdf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e1630ecfe88ed49568b4271ae39d44d7701cc2f5819159499762e5fa97434f2
[INFO] running `Command { std: "docker" "start" "-a" "2e1630ecfe88ed49568b4271ae39d44d7701cc2f5819159499762e5fa97434f2", kill_on_drop: false }`
[INFO] [stderr]     Checking workflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::sync::mpsc::Select`
[INFO] [stdout]  --> src/main.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::mpsc::{Select, Sender, Receiver, channel};
[INFO] [stdout]   |                       ^^^^^^ no `Select` in `sync::mpsc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `workflow`
[INFO] [stdout]    --> src/main.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #![feature(mpsc_select)]
[INFO] [stdout] 2   | |
[INFO] [stdout] 3   | | use std::cell::Cell;
[INFO] [stdout] 4   | | use std::collections::{HashMap, VecDeque};
[INFO] [stdout] ...   |
[INFO] [stdout] 263 | |     }
[INFO] [stdout] 264 | | }
[INFO] [stdout]     | |_^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::sync::mpsc::Select`
[INFO] [stdout]  --> src/main.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::mpsc::{Select, Sender, Receiver, channel};
[INFO] [stdout]   |                       ^^^^^^ no `Select` in `sync::mpsc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `workflow` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2e1630ecfe88ed49568b4271ae39d44d7701cc2f5819159499762e5fa97434f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e1630ecfe88ed49568b4271ae39d44d7701cc2f5819159499762e5fa97434f2", kill_on_drop: false }`
[INFO] [stdout] 2e1630ecfe88ed49568b4271ae39d44d7701cc2f5819159499762e5fa97434f2