[INFO] cloning repository https://github.com/aakamenov/midi-mapper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aakamenov/midi-mapper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faakamenov%2Fmidi-mapper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faakamenov%2Fmidi-mapper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57bb02b4c43d0be0fd9d77d0a5635f925242a88c
[INFO] documenting aakamenov/midi-mapper against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faakamenov%2Fmidi-mapper" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aakamenov/midi-mapper on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/aakamenov/midi-mapper
[INFO] finished tweaking git repo https://github.com/aakamenov/midi-mapper
[INFO] tweaked toml for git repo https://github.com/aakamenov/midi-mapper written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aakamenov/midi-mapper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/aakamenov/microui-rs`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wmidi v4.0.6
[INFO] [stderr]   Downloaded femtovg v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 909351bec6a80ae1511c12df36d05bc05d9dfa70f50506f1dac347d2502cc20d
[INFO] running `Command { std: "docker" "start" "-a" "909351bec6a80ae1511c12df36d05bc05d9dfa70f50506f1dac347d2502cc20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "909351bec6a80ae1511c12df36d05bc05d9dfa70f50506f1dac347d2502cc20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909351bec6a80ae1511c12df36d05bc05d9dfa70f50506f1dac347d2502cc20d", kill_on_drop: false }`
[INFO] [stdout] 909351bec6a80ae1511c12df36d05bc05d9dfa70f50506f1dac347d2502cc20d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5d4c75b0cf6bcec580c35e41c06da9bdcf3c22d1dd802f67afad9c7b728464c
[INFO] running `Command { std: "docker" "start" "-a" "f5d4c75b0cf6bcec580c35e41c06da9bdcf3c22d1dd802f67afad9c7b728464c", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling cfg-expr v0.11.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking ttf-parser v0.18.1
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking strict-num v0.1.0
[INFO] [stderr]     Checking raw-window-handle v0.5.0
[INFO] [stderr]     Checking owned_ttf_parser v0.18.1
[INFO] [stderr]     Checking tiny-skia-path v0.8.3
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]     Checking memmap2 v0.5.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking ab_glyph v0.2.20
[INFO] [stderr]     Checking tiny-skia v0.8.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling system-deps v6.0.3
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]    Compiling winit v0.28.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.4.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.4.0
[INFO] [stderr]    Compiling wayland-sys v0.30.1
[INFO] [stderr]    Compiling glib-sys v0.15.10
[INFO] [stderr]    Compiling gobject-sys v0.15.10
[INFO] [stderr]    Compiling atk-sys v0.15.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling gio-sys v0.15.10
[INFO] [stderr]    Compiling gdk-sys v0.15.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.15.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.15.10
[INFO] [stderr]    Compiling pango-sys v0.15.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling gtk-sys v0.15.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]    Compiling glutin v0.30.4
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling ouroboros_macro v0.15.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling glutin-winit v0.3.0
[INFO] [stderr]     Checking aliasable v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustybuzz v0.7.0
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking calloop v0.10.5
[INFO] [stderr]     Checking rgb v0.8.34
[INFO] [stderr]    Compiling rfd v0.10.0
[INFO] [stderr]     Checking imgref v1.9.4
[INFO] [stderr]     Checking microui v0.1.0 (https://github.com/aakamenov/microui-rs?rev=ea69581#ea695814)
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/microui-rs-4d6ff15af6d84174/ea69581/microui/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(new_uninit)]
[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/microui-rs-4d6ff15af6d84174/ea69581/microui/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(variant_count)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lru v0.9.0
[INFO] [stderr]     Checking glow v0.12.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.0
[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 `microui` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f5d4c75b0cf6bcec580c35e41c06da9bdcf3c22d1dd802f67afad9c7b728464c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d4c75b0cf6bcec580c35e41c06da9bdcf3c22d1dd802f67afad9c7b728464c", kill_on_drop: false }`
[INFO] [stdout] f5d4c75b0cf6bcec580c35e41c06da9bdcf3c22d1dd802f67afad9c7b728464c
