[INFO] cloning repository https://github.com/redox-os/installer
[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/installer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Finstaller", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Finstaller'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2418286a2961e226b0da7fd0ae26fae0e334143e
[INFO] documenting redox-os/installer 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%2Fredox-os%2Finstaller" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redox-os/installer 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/redox-os/installer
[INFO] finished tweaking git repo https://github.com/redox-os/installer
[INFO] tweaked toml for git repo https://github.com/redox-os/installer written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/redox-os/installer 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://gitlab.redox-os.org/redox-os/ring.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkgar-keys v0.1.0
[INFO] [stderr]   Downloaded user-error v1.2.8
[INFO] [stderr]   Downloaded memsec v0.6.0
[INFO] [stderr]   Downloaded seckey v0.11.2
[INFO] [stderr]   Downloaded redox_users v0.4.2
[INFO] [stderr]   Downloaded sodiumoxide v0.2.6
[INFO] [stderr]   Downloaded pkgar v0.1.9
[INFO] [stderr]   Downloaded pkgar-core v0.1.0
[INFO] [stderr]   Downloaded libsodium-sys v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 576b55e0f2f377b6a8f63dec17a12bdbc3b9c1615f4a97cb384990e3518ca7e9
[INFO] running `Command { std: "docker" "start" "-a" "576b55e0f2f377b6a8f63dec17a12bdbc3b9c1615f4a97cb384990e3518ca7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "576b55e0f2f377b6a8f63dec17a12bdbc3b9c1615f4a97cb384990e3518ca7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "576b55e0f2f377b6a8f63dec17a12bdbc3b9c1615f4a97cb384990e3518ca7e9", kill_on_drop: false }`
[INFO] [stdout] 576b55e0f2f377b6a8f63dec17a12bdbc3b9c1615f4a97cb384990e3518ca7e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] a23e4b88bb4243cb16fe58ef41954b1aacbe4d17c2254b24e58d2ce53274a9f6
[INFO] running `Command { std: "docker" "start" "-a" "a23e4b88bb4243cb16fe58ef41954b1aacbe4d17c2254b24e58d2ce53274a9f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking user-error v1.2.8
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling redox_pkgutils v0.1.6
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking base64ct v1.1.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking redox_simple_endian v0.2.1
[INFO] [stderr]     Checking ordermap v0.2.13
[INFO] [stderr]     Checking bidir-map v0.6.0
[INFO] [stderr]     Checking version-compare v0.0.10
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking arg_parser v0.1.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking redox_syscall v0.2.12
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[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_simple_endian-0.2.1/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[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]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr] error: could not compile `redox_simple_endian` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a23e4b88bb4243cb16fe58ef41954b1aacbe4d17c2254b24e58d2ce53274a9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a23e4b88bb4243cb16fe58ef41954b1aacbe4d17c2254b24e58d2ce53274a9f6", kill_on_drop: false }`
[INFO] [stdout] a23e4b88bb4243cb16fe58ef41954b1aacbe4d17c2254b24e58d2ce53274a9f6