[INFO] cloning repository https://github.com/DGriffin91/imgui_baseplug_baseview_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DGriffin91/imgui_baseplug_baseview_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDGriffin91%2Fimgui_baseplug_baseview_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDGriffin91%2Fimgui_baseplug_baseview_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35473cf7fe53f2a004b7d13a0addc744567402c3
[INFO] documenting DGriffin91/imgui_baseplug_baseview_test against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDGriffin91%2Fimgui_baseplug_baseview_test" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DGriffin91/imgui_baseplug_baseview_test on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DGriffin91/imgui_baseplug_baseview_test
[INFO] finished tweaking git repo https://github.com/DGriffin91/imgui_baseplug_baseview_test
[INFO] tweaked toml for git repo https://github.com/DGriffin91/imgui_baseplug_baseview_test written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DGriffin91/imgui_baseplug_baseview_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/wrl/baseplug.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustAudio/baseview`
[INFO] [stderr]     Updating git repository `https://github.com/BillyDM/imgui-baseview`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded imgui v0.7.0
[INFO] [stderr]   Downloaded gl v0.14.0
[INFO] [stderr]   Downloaded xcb-util v0.3.0
[INFO] [stderr]   Downloaded raw-gl-context v0.1.2
[INFO] [stderr]   Downloaded imgui-opengl-renderer v0.11.0
[INFO] [stderr]   Downloaded vst v0.2.1
[INFO] [stderr]   Downloaded xml-rs v0.8.3
[INFO] [stderr]   Downloaded keyboard-types v0.5.0
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded gl_generator v0.14.0
[INFO] [stderr]   Downloaded chlorine v1.0.7
[INFO] [stderr]   Downloaded imgui-sys v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.6
[INFO] [stderr]   Downloaded rtrb v0.1.3
[INFO] [stderr]   Downloaded khronos_api v3.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01b09e0a78ca84d4b0e0ac9ffe97a612d18a5eae9b4d8c951da84e9044dd8abf
[INFO] running `Command { std: "docker" "start" "-a" "01b09e0a78ca84d4b0e0ac9ffe97a612d18a5eae9b4d8c951da84e9044dd8abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01b09e0a78ca84d4b0e0ac9ffe97a612d18a5eae9b4d8c951da84e9044dd8abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b09e0a78ca84d4b0e0ac9ffe97a612d18a5eae9b4d8c951da84e9044dd8abf", kill_on_drop: false }`
[INFO] [stdout] 01b09e0a78ca84d4b0e0ac9ffe97a612d18a5eae9b4d8c951da84e9044dd8abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 381d1c249713a8675f131e1abb5540f5840a1f5da26485e6a40d604d3091f56f
[INFO] running `Command { std: "docker" "start" "-a" "381d1c249713a8675f131e1abb5540f5840a1f5da26485e6a40d604d3091f56f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking chlorine v1.0.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking vst2-sys v0.2.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking rtrb v0.1.3
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking log-panics v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking keyboard-types v0.5.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling imgui-sys v0.7.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling imgui-opengl-renderer v0.11.0
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking vst v0.2.1
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking raw-gl-context v0.1.2
[INFO] [stderr]     Checking simplelog v0.8.0
[INFO] [stderr]    Compiling baseplug-derive v0.1.0 (https://github.com/wrl/baseplug.git?branch=trunk#9cec68f3)
[INFO] [stderr]     Checking imgui v0.7.0
[INFO] [stderr]     Checking xcb-util v0.3.0
[INFO] [stderr]     Checking baseview v0.1.0 (https://github.com/RustAudio/baseview?branch=master#d399c127)
[INFO] [stderr]     Checking baseplug v0.1.0 (https://github.com/wrl/baseplug.git?branch=trunk#9cec68f3)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/baseplug-941e692cfa0aefee/9cec68f/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/baseplug-941e692cfa0aefee/9cec68f/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `baseplug` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "381d1c249713a8675f131e1abb5540f5840a1f5da26485e6a40d604d3091f56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381d1c249713a8675f131e1abb5540f5840a1f5da26485e6a40d604d3091f56f", kill_on_drop: false }`
[INFO] [stdout] 381d1c249713a8675f131e1abb5540f5840a1f5da26485e6a40d604d3091f56f