[INFO] fetching crate redoxer 0.2.22...
[INFO] checking redoxer-0.2.22 against 1.55.0 for beta-1.56-3
[INFO] extracting crate redoxer 0.2.22 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate redoxer 0.2.22 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 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-49/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" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper-rustls v0.6.2
[INFO] [stderr]   Downloaded pbr v1.0.4
[INFO] [stderr]   Downloaded termion v1.5.6
[INFO] [stderr]   Downloaded webpki v0.18.1
[INFO] [stderr]   Downloaded untrusted v0.6.2
[INFO] [stderr]   Downloaded redox_installer v0.2.7
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded err-derive v0.2.4
[INFO] [stderr]   Downloaded fuse v0.3.1
[INFO] [stderr]   Downloaded webpki-roots v0.15.0
[INFO] [stderr]   Downloaded partition-identity v0.2.8
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] [stderr]   Downloaded hyper v0.10.16
[INFO] [stderr]   Downloaded pkgar v0.1.6
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded redox_liner v0.5.1
[INFO] [stderr]   Downloaded redoxfs v0.4.3
[INFO] [stderr]   Downloaded object v0.26.0
[INFO] [stderr]   Downloaded sha3 v0.8.2
[INFO] [stderr]   Downloaded blake3 v0.2.3
[INFO] [stderr]   Downloaded serde v1.0.127
[INFO] [stderr]   Downloaded tar v0.4.35
[INFO] [stderr]   Downloaded serde_derive v1.0.127
[INFO] [stderr]   Downloaded ring v0.13.5
[INFO] [stderr]   Downloaded arg_parser v0.1.0
[INFO] [stderr]   Downloaded redox_pkgutils v0.1.6
[INFO] [stderr]   Downloaded proc-mounts v0.2.4
[INFO] [stderr]   Downloaded ordermap v0.2.13
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded sodalite v0.3.0
[INFO] [stderr]   Downloaded bidir-map v0.6.0
[INFO] [stderr]   Downloaded index-fixed v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 72b84cebca8d8530b9c038e870a7b0b708768a15bf0c0c14add4b3ed1dbf2b18
[INFO] running `Command { std: "docker" "start" "-a" "72b84cebca8d8530b9c038e870a7b0b708768a15bf0c0c14add4b3ed1dbf2b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72b84cebca8d8530b9c038e870a7b0b708768a15bf0c0c14add4b3ed1dbf2b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b84cebca8d8530b9c038e870a7b0b708768a15bf0c0c14add4b3ed1dbf2b18", kill_on_drop: false }`
[INFO] [stdout] 72b84cebca8d8530b9c038e870a7b0b708768a15bf0c0c14add4b3ed1dbf2b18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 089a4a09b71be892349c83a97cddaa40cbd3f55b6f6bd6380ffef6c8b1fe44cf
[INFO] running `Command { std: "docker" "start" "-a" "089a4a09b71be892349c83a97cddaa40cbd3f55b6f6bd6380ffef6c8b1fe44cf", 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 syn v1.0.74
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking index-fixed v0.3.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]    Compiling redox_pkgutils v0.1.6
[INFO] [stderr]     Checking bidir-map v0.6.0
[INFO] [stderr]     Checking version-compare v0.0.10
[INFO] [stderr]     Checking ordermap v0.2.13
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking arg_parser v0.1.0
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking redox_syscall v0.2.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking sodalite v0.3.0
[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/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 petgraph v0.4.13
[INFO] [stderr]     Checking block-padding v0.1.5
[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" "089a4a09b71be892349c83a97cddaa40cbd3f55b6f6bd6380ffef6c8b1fe44cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089a4a09b71be892349c83a97cddaa40cbd3f55b6f6bd6380ffef6c8b1fe44cf", kill_on_drop: false }`
[INFO] [stdout] 089a4a09b71be892349c83a97cddaa40cbd3f55b6f6bd6380ffef6c8b1fe44cf
