[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] testing gterzian/workflow_executor against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgterzian%2Fworkflow_executor" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gterzian/workflow_executor 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] removed /workspace/builds/worker-12/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-12/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" "+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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 9e53e35edc1cc46805e34ee5d5174ca0cbda0e6dfd5c985d88dde9e8ddc27495
[INFO] running `Command { std: "docker" "start" "-a" "9e53e35edc1cc46805e34ee5d5174ca0cbda0e6dfd5c985d88dde9e8ddc27495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e53e35edc1cc46805e34ee5d5174ca0cbda0e6dfd5c985d88dde9e8ddc27495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e53e35edc1cc46805e34ee5d5174ca0cbda0e6dfd5c985d88dde9e8ddc27495", kill_on_drop: false }`
[INFO] [stdout] 9e53e35edc1cc46805e34ee5d5174ca0cbda0e6dfd5c985d88dde9e8ddc27495
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 12bbe4344209022330e4f1d45e79e35641eed1ee50396778a92c1fac1c7fcbaf
[INFO] running `Command { std: "docker" "start" "-a" "12bbe4344209022330e4f1d45e79e35641eed1ee50396778a92c1fac1c7fcbaf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(mpsc_select)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[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: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `workflow`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "12bbe4344209022330e4f1d45e79e35641eed1ee50396778a92c1fac1c7fcbaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12bbe4344209022330e4f1d45e79e35641eed1ee50396778a92c1fac1c7fcbaf", kill_on_drop: false }`
[INFO] [stdout] 12bbe4344209022330e4f1d45e79e35641eed1ee50396778a92c1fac1c7fcbaf
