[INFO] cloning repository https://github.com/redox-os/orbutils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redox-os/orbutils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Forbutils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Forbutils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd5fe9ff2130de9e11f6b38f25ddd7c67c16d339
[INFO] documenting redox-os/orbutils against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Forbutils" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redox-os/orbutils 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/redox-os/orbutils
[INFO] finished tweaking git repo https://github.com/redox-os/orbutils
[INFO] tweaked toml for git repo https://github.com/redox-os/orbutils written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/redox-os/orbutils already has a lockfile, it will not be regenerated
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15bd40c6814c160ed6dbdf0403a217e0449604fe1e8c16ddb94970cdd558f413
[INFO] running `Command { std: "docker" "start" "-a" "15bd40c6814c160ed6dbdf0403a217e0449604fe1e8c16ddb94970cdd558f413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15bd40c6814c160ed6dbdf0403a217e0449604fe1e8c16ddb94970cdd558f413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15bd40c6814c160ed6dbdf0403a217e0449604fe1e8c16ddb94970cdd558f413", kill_on_drop: false }`
[INFO] [stdout] 15bd40c6814c160ed6dbdf0403a217e0449604fe1e8c16ddb94970cdd558f413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9565fa871930035c5926b7e1654bc923029bc7e4a6b6824e1cd5be8926d95ae9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9565fa871930035c5926b7e1654bc923029bc7e4a6b6824e1cd5be8926d95ae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking resize v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling decimal v2.1.0 (https://github.com/alkis/decimal.git#83cfb19d)
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking redox_syscall v0.2.9
[INFO] [stderr]     Checking rust-argon2 v0.8.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num-bigint v0.3.2
[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/redox_syscall-0.2.9/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm)]
[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/registry/src/github.com-1ecc6299db9ec823/redox_syscall-0.2.9/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(llvm_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking stb_truetype v0.2.8
[INFO] [stderr]     Checking redox_liner v0.5.1
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking tiff v0.2.2
[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 `redox_syscall`
[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" "9565fa871930035c5926b7e1654bc923029bc7e4a6b6824e1cd5be8926d95ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9565fa871930035c5926b7e1654bc923029bc7e4a6b6824e1cd5be8926d95ae9", kill_on_drop: false }`
[INFO] [stdout] 9565fa871930035c5926b7e1654bc923029bc7e4a6b6824e1cd5be8926d95ae9
