[INFO] cloning repository https://github.com/vasily-kirichenko/tic_tac_toe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vasily-kirichenko/tic_tac_toe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Ftic_tac_toe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Ftic_tac_toe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db5d6177f0f5e216e230ed1a6403a4c452bb9818
[INFO] testing vasily-kirichenko/tic_tac_toe against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Ftic_tac_toe" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vasily-kirichenko/tic_tac_toe on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vasily-kirichenko/tic_tac_toe
[INFO] finished tweaking git repo https://github.com/vasily-kirichenko/tic_tac_toe
[INFO] tweaked toml for git repo https://github.com/vasily-kirichenko/tic_tac_toe written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/vasily-kirichenko/tic_tac_toe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cute v0.3.0
[INFO] [stderr]   Downloaded serde_derive v1.0.41
[INFO] [stderr]   Downloaded clippy_lints v0.0.195
[INFO] [stderr]   Downloaded serde v1.0.41
[INFO] [stderr]   Downloaded clippy v0.0.195
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e4fcc64baa2b714f07901cabf1f18ae2650dcc24051c3a7ad315bb5fe5c8c89
[INFO] running `Command { std: "docker" "start" "-a" "0e4fcc64baa2b714f07901cabf1f18ae2650dcc24051c3a7ad315bb5fe5c8c89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e4fcc64baa2b714f07901cabf1f18ae2650dcc24051c3a7ad315bb5fe5c8c89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e4fcc64baa2b714f07901cabf1f18ae2650dcc24051c3a7ad315bb5fe5c8c89", kill_on_drop: false }`
[INFO] [stdout] 0e4fcc64baa2b714f07901cabf1f18ae2650dcc24051c3a7ad315bb5fe5c8c89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9dc96d9a1398afc0a3fe891b8b4bb8245f1c95328f55a0f580b9ebfe1447fac
[INFO] running `Command { std: "docker" "start" "-a" "c9dc96d9a1398afc0a3fe891b8b4bb8245f1c95328f55a0f580b9ebfe1447fac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cute v0.3.0
[INFO] [stderr]    Compiling tic-tac-toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(trace_macros)]
[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 `tic-tac-toe` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c9dc96d9a1398afc0a3fe891b8b4bb8245f1c95328f55a0f580b9ebfe1447fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9dc96d9a1398afc0a3fe891b8b4bb8245f1c95328f55a0f580b9ebfe1447fac", kill_on_drop: false }`
[INFO] [stdout] c9dc96d9a1398afc0a3fe891b8b4bb8245f1c95328f55a0f580b9ebfe1447fac