[INFO] cloning repository https://github.com/alsmith151/bw_extract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alsmith151/bw_extract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falsmith151%2Fbw_extract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falsmith151%2Fbw_extract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b2bd2c0b9e3e41ad133bb498dd43bfca8181c5a
[INFO] documenting alsmith151/bw_extract 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%2Falsmith151%2Fbw_extract" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alsmith151/bw_extract 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/alsmith151/bw_extract
[INFO] finished tweaking git repo https://github.com/alsmith151/bw_extract
[INFO] tweaked toml for git repo https://github.com/alsmith151/bw_extract written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alsmith151/bw_extract 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f40420419d4c99f2feb107014d037eefeab1f35b26be2eaf38fa3dc6d175816b
[INFO] running `Command { std: "docker" "start" "-a" "f40420419d4c99f2feb107014d037eefeab1f35b26be2eaf38fa3dc6d175816b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f40420419d4c99f2feb107014d037eefeab1f35b26be2eaf38fa3dc6d175816b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40420419d4c99f2feb107014d037eefeab1f35b26be2eaf38fa3dc6d175816b", kill_on_drop: false }`
[INFO] [stdout] f40420419d4c99f2feb107014d037eefeab1f35b26be2eaf38fa3dc6d175816b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 221b7c96e8a6052a658e342c16f687e22903ec0089d551321b6e7fb4c329c80b
[INFO] running `Command { std: "docker" "start" "-a" "221b7c96e8a6052a658e342c16f687e22903ec0089d551321b6e7fb4c329c80b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling packed_simd_2 v0.3.4
[INFO] [stderr]    Compiling zstd-safe v3.0.1+zstd.1.4.9
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]    Compiling snap v1.0.4
[INFO] [stderr]    Compiling parquet v3.0.0
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking unsafe_unwrap v0.1.0
[INFO] [stderr]     Checking fast-float v0.1.0
[INFO] [stderr]    Compiling bio v0.33.0
[INFO] [stderr]     Checking wildmatch v1.1.0
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking triple_accel v0.3.4
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking memmap2 v0.2.1
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking byteordered v0.5.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking ahash v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking lexical v5.2.1
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking brotli-decompressor v2.3.1
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking thrift v0.13.0
[INFO] [stderr]     Checking num-bigint v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/lib.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     const_fn,
[INFO] [stdout]     |     ^^^^^^^^ feature has been removed
[INFO] [stdout]     |
[INFO] [stdout]     = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking ndarray v0.14.0
[INFO] [stderr]     Checking parquet-format v2.6.1
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zstd-sys v1.4.20+zstd.1.4.9
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling libdeflate-sys v0.5.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |     #[rustc_args_required_const(2)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.4/src/codegen/llvm.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     #[rustc_args_required_const(2)]
[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/packed_simd_2-0.3.4/src/lib.rs:202:1
[INFO] [stdout]     |
[INFO] [stdout] 202 | / #![feature(
[INFO] [stdout] 203 | |     repr_simd,
[INFO] [stdout] 204 | |     rustc_attrs,
[INFO] [stdout] 205 | |     const_fn,
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |     llvm_asm
[INFO] [stdout] 216 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking brotli v3.3.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking libdeflater v0.5.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.67/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=80ae619b3848e10f -C extra-filename=-80ae619b3848e10f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-540b6631119ce641.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1e3d75a5de3f2ca3.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-12009cf1a2496f6d.rmeta --cap-lints allow --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 14 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "221b7c96e8a6052a658e342c16f687e22903ec0089d551321b6e7fb4c329c80b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "221b7c96e8a6052a658e342c16f687e22903ec0089d551321b6e7fb4c329c80b", kill_on_drop: false }`
[INFO] [stdout] 221b7c96e8a6052a658e342c16f687e22903ec0089d551321b6e7fb4c329c80b
