[INFO] cloning repository https://github.com/Tim-Nosco/kings-walk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tim-Nosco/kings-walk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTim-Nosco%2Fkings-walk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTim-Nosco%2Fkings-walk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd6b4b3eeb82bbd710122c73fc9a25a7500f6ad9
[INFO] testing Tim-Nosco/kings-walk against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTim-Nosco%2Fkings-walk" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tim-Nosco/kings-walk on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tim-Nosco/kings-walk
[INFO] finished tweaking git repo https://github.com/Tim-Nosco/kings-walk
[INFO] tweaked toml for git repo https://github.com/Tim-Nosco/kings-walk written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/Tim-Nosco/kings-walk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4769a2bd8c1dd04982ae255ca9359509e06bb7dbfda528061afafe9519541261
[INFO] running `Command { std: "docker" "start" "-a" "4769a2bd8c1dd04982ae255ca9359509e06bb7dbfda528061afafe9519541261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4769a2bd8c1dd04982ae255ca9359509e06bb7dbfda528061afafe9519541261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4769a2bd8c1dd04982ae255ca9359509e06bb7dbfda528061afafe9519541261", kill_on_drop: false }`
[INFO] [stdout] 4769a2bd8c1dd04982ae255ca9359509e06bb7dbfda528061afafe9519541261
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 788d90443a6429d855afb78a146885dbf3130b31c33fdfb0c775aacb9f8e6c2f
[INFO] running `Command { std: "docker" "start" "-a" "788d90443a6429d855afb78a146885dbf3130b31c33fdfb0c775aacb9f8e6c2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling kings-walk 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(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kings-walk` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "788d90443a6429d855afb78a146885dbf3130b31c33fdfb0c775aacb9f8e6c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "788d90443a6429d855afb78a146885dbf3130b31c33fdfb0c775aacb9f8e6c2f", kill_on_drop: false }`
[INFO] [stdout] 788d90443a6429d855afb78a146885dbf3130b31c33fdfb0c775aacb9f8e6c2f