[INFO] fetching crate redoxer 0.2.22...
[INFO] testing redoxer-0.2.22 against 1.59.0 for beta-1.60-1
[INFO] extracting crate redoxer 0.2.22 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate redoxer 0.2.22 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate redoxer 0.2.22
[INFO] finished tweaking crates.io crate redoxer 0.2.22
[INFO] tweaked toml for crates.io crate redoxer 0.2.22 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate redoxer 0.2.22 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.127
[INFO] [stderr]   Downloaded fuse v0.3.1
[INFO] [stderr]   Downloaded serde v1.0.127
[INFO] [stderr]   Downloaded object v0.26.0
[INFO] [stderr]   Downloaded sodalite v0.3.0
[INFO] [stderr]   Downloaded blake3 v0.2.3
[INFO] [stderr]   Downloaded index-fixed v0.3.1
[INFO] [stderr]   Downloaded hyper-rustls v0.6.2
[INFO] [stderr]   Downloaded webpki-roots v0.15.0
[INFO] [stderr]   Downloaded ordermap v0.2.13
[INFO] [stderr]   Downloaded sha3 v0.8.2
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] [stderr]   Downloaded tar v0.4.35
[INFO] [stderr]   Downloaded redox_liner v0.5.1
[INFO] [stderr]   Downloaded pbr v1.0.4
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded version-compare v0.0.10
[INFO] [stderr]   Downloaded redox_pkgutils v0.1.6
[INFO] [stderr]   Downloaded arg_parser v0.1.0
[INFO] [stderr]   Downloaded bidir-map v0.6.0
[INFO] [stderr]   Downloaded redoxfs v0.4.3
[INFO] [stderr]   Downloaded pkgar v0.1.6
[INFO] [stderr]   Downloaded redox_installer v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c0a043e54f08bff3cd02b50f0cb8472a40d90905a43883f5e2acca1d7a20c85
[INFO] running `Command { std: "docker" "start" "-a" "6c0a043e54f08bff3cd02b50f0cb8472a40d90905a43883f5e2acca1d7a20c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c0a043e54f08bff3cd02b50f0cb8472a40d90905a43883f5e2acca1d7a20c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c0a043e54f08bff3cd02b50f0cb8472a40d90905a43883f5e2acca1d7a20c85", kill_on_drop: false }`
[INFO] [stdout] 6c0a043e54f08bff3cd02b50f0cb8472a40d90905a43883f5e2acca1d7a20c85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e16eb05613b680b0c3f876728ea62ecf6e05224a301751dbe42d1cb494fee15
[INFO] running `Command { std: "docker" "start" "-a" "4e16eb05613b680b0c3f876728ea62ecf6e05224a301751dbe42d1cb494fee15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling index-fixed v0.3.1
[INFO] [stderr]    Compiling redox_pkgutils v0.1.6
[INFO] [stderr]    Compiling ordermap v0.2.13
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling bidir-map v0.6.0
[INFO] [stderr]    Compiling arg_parser v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling redox_syscall v0.2.9
[INFO] [stderr]    Compiling sodalite v0.3.0
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[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:1:12
[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:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(llvm_asm)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[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` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4e16eb05613b680b0c3f876728ea62ecf6e05224a301751dbe42d1cb494fee15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e16eb05613b680b0c3f876728ea62ecf6e05224a301751dbe42d1cb494fee15", kill_on_drop: false }`
[INFO] [stdout] 4e16eb05613b680b0c3f876728ea62ecf6e05224a301751dbe42d1cb494fee15