[INFO] cloning repository https://github.com/TVerse/raymarcher-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TVerse/raymarcher-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTVerse%2Fraymarcher-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTVerse%2Fraymarcher-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6d921c40656ae874ba68d7cd46d8034bed77d04
[INFO] testing TVerse/raymarcher-rs against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTVerse%2Fraymarcher-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TVerse/raymarcher-rs on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/TVerse/raymarcher-rs
[INFO] finished tweaking git repo https://github.com/TVerse/raymarcher-rs
[INFO] tweaked toml for git repo https://github.com/TVerse/raymarcher-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/TVerse/raymarcher-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 602f1c4b24267104e6fd6b8d7a2e60cf2105b8a4c93c109a7f3d68c6969104d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "602f1c4b24267104e6fd6b8d7a2e60cf2105b8a4c93c109a7f3d68c6969104d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "602f1c4b24267104e6fd6b8d7a2e60cf2105b8a4c93c109a7f3d68c6969104d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "602f1c4b24267104e6fd6b8d7a2e60cf2105b8a4c93c109a7f3d68c6969104d0", kill_on_drop: false }`
[INFO] [stdout] 602f1c4b24267104e6fd6b8d7a2e60cf2105b8a4c93c109a7f3d68c6969104d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 16ff5e6ab6fce2df3de41b4c14b1e09c1acc2548229e4e6ff9f24728c7e04afe
[INFO] running `Command { std: "docker" "start" "-a" "16ff5e6ab6fce2df3de41b4c14b1e09c1acc2548229e4e6ff9f24728c7e04afe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]    Compiling raymarcher-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[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 `raymarcher-rs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "16ff5e6ab6fce2df3de41b4c14b1e09c1acc2548229e4e6ff9f24728c7e04afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ff5e6ab6fce2df3de41b4c14b1e09c1acc2548229e4e6ff9f24728c7e04afe", kill_on_drop: false }`
[INFO] [stdout] 16ff5e6ab6fce2df3de41b4c14b1e09c1acc2548229e4e6ff9f24728c7e04afe