[INFO] cloning repository https://github.com/WeirdConstructor/HexoSynth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WeirdConstructor/HexoSynth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeirdConstructor%2FHexoSynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeirdConstructor%2FHexoSynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deae97275d98ff563e9494d0093f02df4eb4855e
[INFO] testing WeirdConstructor/HexoSynth against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeirdConstructor%2FHexoSynth" "/workspace/builds/worker-110/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-110/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WeirdConstructor/HexoSynth on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WeirdConstructor/HexoSynth
[INFO] finished tweaking git repo https://github.com/WeirdConstructor/HexoSynth
[INFO] tweaked toml for git repo https://github.com/WeirdConstructor/HexoSynth written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/WeirdConstructor/HexoDSP.git`
[INFO] [stderr]     Updating git repository `https://github.com/WeirdConstructor/HexoTK.git`
[INFO] [stderr]     Updating git repository `https://github.com/glowcoil/baseview.git`
[INFO] [stderr]     Updating git repository `https://github.com/femtovg/femtovg`
[INFO] [stderr]     Updating git repository `https://github.com/glowcoil/raw-gl-context`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc88786b922c7dd696e8613346fea16fab909719d5b2df2bb3ec8ac0ffa62919
[INFO] running `Command { std: "docker" "start" "-a" "bc88786b922c7dd696e8613346fea16fab909719d5b2df2bb3ec8ac0ffa62919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc88786b922c7dd696e8613346fea16fab909719d5b2df2bb3ec8ac0ffa62919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc88786b922c7dd696e8613346fea16fab909719d5b2df2bb3ec8ac0ffa62919", kill_on_drop: false }`
[INFO] [stdout] bc88786b922c7dd696e8613346fea16fab909719d5b2df2bb3ec8ac0ffa62919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 499e5399e6eb364e1214b05af3f9b47442cbe6c64d5e45cdcbdeecff694d82c6
[INFO] running `Command { std: "docker" "start" "-a" "499e5399e6eb364e1214b05af3f9b47442cbe6c64d5e45cdcbdeecff694d82c6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling unicode-script v0.5.3
[INFO] [stderr]    Compiling unicode-bidi-mirroring v0.1.0
[INFO] [stderr]    Compiling unicode-ccc v0.1.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling glow v0.10.0
[INFO] [stderr]    Compiling imgref v1.9.1
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling lru v0.6.6
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling generational-arena v0.2.8
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling ringbuf v0.2.6
[INFO] [stderr]    Compiling triple_buffer v5.0.6
[INFO] [stderr]    Compiling keyboard-types v0.5.0
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling owned_ttf_parser v0.12.1
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling rustybuzz v0.4.0
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling raw-gl-context v0.1.2 (https://github.com/glowcoil/raw-gl-context#a5a1b597)
[INFO] [stderr]    Compiling femtovg v0.2.2 (https://github.com/femtovg/femtovg#e9a74da0)
[INFO] [stderr]    Compiling xcb-util v0.3.0
[INFO] [stderr]    Compiling baseview v0.1.0 (https://github.com/glowcoil/baseview.git?branch=copy-from-parent#35da66bd)
[INFO] [stderr]    Compiling hexodsp v0.1.0 (https://github.com/WeirdConstructor/HexoDSP.git#525c8d8c)
[INFO] [stderr]    Compiling hexotk v0.1.0 (https://github.com/WeirdConstructor/HexoTK.git#1426d80e)
[INFO] [stderr]    Compiling hexosynth v0.1.0-alpha-3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(generic_associated_types)]
[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 `hexosynth`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "499e5399e6eb364e1214b05af3f9b47442cbe6c64d5e45cdcbdeecff694d82c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499e5399e6eb364e1214b05af3f9b47442cbe6c64d5e45cdcbdeecff694d82c6", kill_on_drop: false }`
[INFO] [stdout] 499e5399e6eb364e1214b05af3f9b47442cbe6c64d5e45cdcbdeecff694d82c6
