[INFO] fetching crate lovm2_std 0.4.8...
[INFO] documenting lovm2_std-0.4.8 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate lovm2_std 0.4.8 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate lovm2_std 0.4.8 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 crates.io crate lovm2_std 0.4.8
[INFO] finished tweaking crates.io crate lovm2_std 0.4.8
[INFO] tweaked toml for crates.io crate lovm2_std 0.4.8 written to /workspace/builds/worker-55/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny_http v0.7.0
[INFO] [stderr]   Downloaded lovm2_module v0.1.0
[INFO] [stderr]   Downloaded httptest v0.14.0
[INFO] [stderr]   Downloaded lovm2_core v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] ff0652d9237881fc8b22209e1bcaedf4210cc3b635a1afd2d95e48f0b5588fde
[INFO] running `Command { std: "docker" "start" "-a" "ff0652d9237881fc8b22209e1bcaedf4210cc3b635a1afd2d95e48f0b5588fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff0652d9237881fc8b22209e1bcaedf4210cc3b635a1afd2d95e48f0b5588fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff0652d9237881fc8b22209e1bcaedf4210cc3b635a1afd2d95e48f0b5588fde", kill_on_drop: false }`
[INFO] [stdout] ff0652d9237881fc8b22209e1bcaedf4210cc3b635a1afd2d95e48f0b5588fde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37802a9bddd0a42a7ee5dfd8e3eb018ee9f43b0e5711b4161d62ede6dd9b5e50
[INFO] running `Command { std: "docker" "start" "-a" "37802a9bddd0a42a7ee5dfd8e3eb018ee9f43b0e5711b4161d62ede6dd9b5e50", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.45+curl-7.78.0
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tiny_http v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling lovm2_module v0.1.0
[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/lovm2_module-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[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 `lovm2_module`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "37802a9bddd0a42a7ee5dfd8e3eb018ee9f43b0e5711b4161d62ede6dd9b5e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37802a9bddd0a42a7ee5dfd8e3eb018ee9f43b0e5711b4161d62ede6dd9b5e50", kill_on_drop: false }`
[INFO] [stdout] 37802a9bddd0a42a7ee5dfd8e3eb018ee9f43b0e5711b4161d62ede6dd9b5e50
