[INFO] fetching crate rust-gl 0.1.7...
[INFO] checking rust-gl-0.1.7 against 1.55.0 for beta-1.56-3
[INFO] extracting crate rust-gl 0.1.7 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate rust-gl 0.1.7 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 crates.io crate rust-gl 0.1.7
[INFO] finished tweaking crates.io crate rust-gl 0.1.7
[INFO] tweaked toml for crates.io crate rust-gl 0.1.7 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded obj-rs v0.6.4
[INFO] [stderr]   Downloaded rust-gl-proc v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] 5fd0c9c4cf9da873a875cba96f5019f92fb39372830eaffd8d1c1b15d3b34b17
[INFO] running `Command { std: "docker" "start" "-a" "5fd0c9c4cf9da873a875cba96f5019f92fb39372830eaffd8d1c1b15d3b34b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fd0c9c4cf9da873a875cba96f5019f92fb39372830eaffd8d1c1b15d3b34b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fd0c9c4cf9da873a875cba96f5019f92fb39372830eaffd8d1c1b15d3b34b17", kill_on_drop: false }`
[INFO] [stdout] 5fd0c9c4cf9da873a875cba96f5019f92fb39372830eaffd8d1c1b15d3b34b17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc3dda70ae348bd0092ae2b5ca053e65c75ce3b94808a20377d96d8cfdb8cbb
[INFO] running `Command { std: "docker" "start" "-a" "dbc3dda70ae348bd0092ae2b5ca053e65c75ce3b94808a20377d96d8cfdb8cbb", 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] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling bumpalo v3.7.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling rust-gl-proc v0.1.6
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]     Checking js-sys v0.3.55
[INFO] [stderr]     Checking web-sys v0.3.55
[INFO] [stderr]     Checking obj-rs v0.6.4
[INFO] [stderr]     Checking rust-gl v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / #![feature(
[INFO] [stdout] 4 | |     array_map,
[INFO] [stdout] 5 | |     const_generics,
[INFO] [stdout] 6 | |     vec_spare_capacity,
[INFO] [stdout] 7 | |     maybe_uninit_uninit_array,
[INFO] [stdout] 8 | |     maybe_uninit_array_assume_init
[INFO] [stdout] 9 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / #![feature(
[INFO] [stdout] 4 | |     array_map,
[INFO] [stdout] 5 | |     const_generics,
[INFO] [stdout] 6 | |     vec_spare_capacity,
[INFO] [stdout] 7 | |     maybe_uninit_uninit_array,
[INFO] [stdout] 8 | |     maybe_uninit_array_assume_init
[INFO] [stdout] 9 | | )]
[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 `rust-gl` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "dbc3dda70ae348bd0092ae2b5ca053e65c75ce3b94808a20377d96d8cfdb8cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc3dda70ae348bd0092ae2b5ca053e65c75ce3b94808a20377d96d8cfdb8cbb", kill_on_drop: false }`
[INFO] [stdout] dbc3dda70ae348bd0092ae2b5ca053e65c75ce3b94808a20377d96d8cfdb8cbb
