[INFO] cloning repository https://github.com/tomdottom/rust-game-of-life
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomdottom/rust-game-of-life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomdottom%2Frust-game-of-life", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomdottom%2Frust-game-of-life'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bdf9cbf961aca60470392bcdb112135ea12b906
[INFO] testing tomdottom/rust-game-of-life against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomdottom%2Frust-game-of-life" "/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/tomdottom/rust-game-of-life on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomdottom/rust-game-of-life
[INFO] finished tweaking git repo https://github.com/tomdottom/rust-game-of-life
[INFO] tweaked toml for git repo https://github.com/tomdottom/rust-game-of-life written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tomdottom/rust-game-of-life already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v0.2.3
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.16
[INFO] [stderr]   Downloaded spin v0.4.9
[INFO] [stderr]   Downloaded mashup v0.1.5
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.16
[INFO] [stderr]   Downloaded mashup-impl v0.1.5
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.16
[INFO] [stderr]   Downloaded ncurses v5.94.0
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.4.0
[INFO] [stderr]   Downloaded pyo3cls v0.4.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.16
[INFO] [stderr]   Downloaded wbg-rand v0.4.1
[INFO] [stderr]   Downloaded pyo3 v0.4.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.16
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dfd002a2fa1c5eb2e8a7af41a7587ee01b066b223da200c82c724e0b2267cf4
[INFO] running `Command { std: "docker" "start" "-a" "7dfd002a2fa1c5eb2e8a7af41a7587ee01b066b223da200c82c724e0b2267cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dfd002a2fa1c5eb2e8a7af41a7587ee01b066b223da200c82c724e0b2267cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dfd002a2fa1c5eb2e8a7af41a7587ee01b066b223da200c82c724e0b2267cf4", kill_on_drop: false }`
[INFO] [stdout] 7dfd002a2fa1c5eb2e8a7af41a7587ee01b066b223da200c82c724e0b2267cf4
[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=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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 715a5abab55456825c557afc79cbedf42cc91c44939d4533026a25329de57bb2
[INFO] running `Command { std: "docker" "start" "-a" "715a5abab55456825c557afc79cbedf42cc91c44939d4533026a25329de57bb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling ryu v0.2.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.16
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling cgol v0.1.0 (/opt/rustwide/workdir/cgol)
[INFO] [stderr]    Compiling spin v0.4.9
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.9/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.9/src/lib.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spin` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "715a5abab55456825c557afc79cbedf42cc91c44939d4533026a25329de57bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715a5abab55456825c557afc79cbedf42cc91c44939d4533026a25329de57bb2", kill_on_drop: false }`
[INFO] [stdout] 715a5abab55456825c557afc79cbedf42cc91c44939d4533026a25329de57bb2