[INFO] cloning repository https://github.com/Programatic/AmongUsChat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Programatic/AmongUsChat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgramatic%2FAmongUsChat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgramatic%2FAmongUsChat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da31ec640d7b0c5c9626f63b0bd024e803d34a1d
[INFO] testing Programatic/AmongUsChat against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgramatic%2FAmongUsChat" "/workspace/builds/worker-48/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-48/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Programatic/AmongUsChat 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/Programatic/AmongUsChat
[INFO] finished tweaking git repo https://github.com/Programatic/AmongUsChat
[INFO] tweaked toml for git repo https://github.com/Programatic/AmongUsChat written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate git repo https://github.com/Programatic/AmongUsChat 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]     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-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] b4e3a0407d6254e6b0f5ae447b7870769923fdf963acca4796b63d304a2c63e4
[INFO] running `Command { std: "docker" "start" "-a" "b4e3a0407d6254e6b0f5ae447b7870769923fdf963acca4796b63d304a2c63e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4e3a0407d6254e6b0f5ae447b7870769923fdf963acca4796b63d304a2c63e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e3a0407d6254e6b0f5ae447b7870769923fdf963acca4796b63d304a2c63e4", kill_on_drop: false }`
[INFO] [stdout] b4e3a0407d6254e6b0f5ae447b7870769923fdf963acca4796b63d304a2c63e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] cc2396b65b6d0944042cbb0662c5dacf9fb419376b8daea365021bfe9c42126f
[INFO] running `Command { std: "docker" "start" "-a" "cc2396b65b6d0944042cbb0662c5dacf9fb419376b8daea365021bfe9c42126f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.4.2/src/lib.rs:91:42
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", 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/lock_api-0.4.2/src/lib.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "cc2396b65b6d0944042cbb0662c5dacf9fb419376b8daea365021bfe9c42126f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2396b65b6d0944042cbb0662c5dacf9fb419376b8daea365021bfe9c42126f", kill_on_drop: false }`
[INFO] [stdout] cc2396b65b6d0944042cbb0662c5dacf9fb419376b8daea365021bfe9c42126f