[INFO] fetching crate iprs 0.0.4...
[INFO] documenting iprs-0.0.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate iprs 0.0.4 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate iprs 0.0.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iprs 0.0.4
[INFO] finished tweaking crates.io crate iprs 0.0.4
[INFO] tweaked toml for crates.io crate iprs 0.0.4 written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] crate crates.io crate iprs 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parse_int v0.4.0
[INFO] [stderr]   Downloaded multibase v0.8.0
[INFO] [stderr]   Downloaded md4 v0.9.0
[INFO] [stderr]   Downloaded signature v1.2.2
[INFO] [stderr]   Downloaded bs58 v0.3.1
[INFO] [stderr]   Downloaded ripemd320 v0.9.0
[INFO] [stderr]   Downloaded pin-project v0.4.26
[INFO] [stderr]   Downloaded unsigned-varint v0.5.1
[INFO] [stderr]   Downloaded curve25519-dalek v3.0.0
[INFO] [stderr]   Downloaded dns-lookup v1.0.4
[INFO] [stderr]   Downloaded ed25519 v1.0.2
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.8
[INFO] [stderr]   Downloaded asn1_der_derive v0.1.2
[INFO] [stderr]   Downloaded asn1_der v0.6.3
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.5
[INFO] [stderr]   Downloaded hmac-drbg v0.2.0
[INFO] [stderr]   Downloaded zeroize v1.1.1
[INFO] [stderr]   Downloaded blake2s_simd v0.5.10
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.8
[INFO] [stderr]   Downloaded threefish-cipher v0.3.1
[INFO] [stderr]   Downloaded pin-project-internal v0.4.26
[INFO] [stderr]   Downloaded k12 v0.1.0
[INFO] [stderr]   Downloaded skein-hash v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9785d823497072f3971fa272f855fa2e532eeaea3fd95a57bdc8a14c23abf17d
[INFO] running `Command { std: "docker" "start" "-a" "9785d823497072f3971fa272f855fa2e532eeaea3fd95a57bdc8a14c23abf17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9785d823497072f3971fa272f855fa2e532eeaea3fd95a57bdc8a14c23abf17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9785d823497072f3971fa272f855fa2e532eeaea3fd95a57bdc8a14c23abf17d", kill_on_drop: false }`
[INFO] [stdout] 9785d823497072f3971fa272f855fa2e532eeaea3fd95a57bdc8a14c23abf17d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9965cf9007d3a9b8f1b53251a083ccde7f42cb7307b3fe4ca2998863ac6c22e
[INFO] running `Command { std: "docker" "start" "-a" "c9965cf9007d3a9b8f1b53251a083ccde7f42cb7307b3fe4ca2998863ac6c22e", 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]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
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[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
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[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
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[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling data-encoding v2.3.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking fake-simd v0.1.2
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[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking ed25519 v1.0.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking digest v0.8.1
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[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking threefish-cipher v0.3.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking ripemd320 v0.9.0
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking k12 v0.1.0
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking md4 v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking skein-hash v0.3.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking dns-lookup v1.0.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking ctrlc v3.1.6
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling iprs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting iprs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[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 document `iprs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name iprs src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="libsecp256k1"' --cfg 'feature="secp256k1"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern asn1_der=/opt/rustwide/target/debug/deps/libasn1_der-476926a844ac73ff.rmeta --extern blake2b_simd=/opt/rustwide/target/debug/deps/libblake2b_simd-a3407e45af409ddb.rmeta --extern blake2s_simd=/opt/rustwide/target/debug/deps/libblake2s_simd-e09d0d145e5dec4f.rmeta --extern blake3=/opt/rustwide/target/debug/deps/libblake3-a525308cd7f02c6d.rmeta --extern bs58=/opt/rustwide/target/debug/deps/libbs58-7f38e4f76598205c.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-03b7e06c02724cc6.rmeta --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-6de52859a7e7050a.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-abbadff04bde3a32.rmeta --extern data_encoding_macro=/opt/rustwide/target/debug/deps/libdata_encoding_macro-cc70aef78c119b3c.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-4b4667f451199632.rmeta --extern dns_lookup=/opt/rustwide/target/debug/deps/libdns_lookup-97159cb32bae3349.rmeta --extern ed25519_dalek=/opt/rustwide/target/debug/deps/libed25519_dalek-f7e49dd1373bcf31.rmeta --extern k12=/opt/rustwide/target/debug/deps/libk12-933ffb59cea12b50.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern secp256k1=/opt/rustwide/target/debug/deps/libsecp256k1-05e8fa83b3eba9e0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f6acec9963427e47.rmeta --extern md4=/opt/rustwide/target/debug/deps/libmd4-17fc8c20690501ae.rmeta --extern md5=/opt/rustwide/target/debug/deps/libmd5-2321b753da7dc695.rmeta --extern multibase=/opt/rustwide/target/debug/deps/libmultibase-849d34c2cf14a6d3.rmeta --extern prost=/opt/rustwide/target/debug/deps/libprost-34525771de5ba7dc.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7455298c832aa5a4.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-8674842643d3e3f3.rmeta --extern ripemd160=/opt/rustwide/target/debug/deps/libripemd160-495b0654c5c89fa3.rmeta --extern ripemd320=/opt/rustwide/target/debug/deps/libripemd320-57a03181d85cc807.rmeta --extern sha1=/opt/rustwide/target/debug/deps/libsha1-2cd8d599facc17ea.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-ef89438a2daa3801.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-11aaabe4df1e885e.rmeta --extern skein_hash=/opt/rustwide/target/debug/deps/libskein_hash-06adf1b52b0d9758.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-4c3da3eb70ced332.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-40acfa0a3d39db3d.rmeta --cap-lints=warn --crate-version 0.0.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c9965cf9007d3a9b8f1b53251a083ccde7f42cb7307b3fe4ca2998863ac6c22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9965cf9007d3a9b8f1b53251a083ccde7f42cb7307b3fe4ca2998863ac6c22e", kill_on_drop: false }`
[INFO] [stdout] c9965cf9007d3a9b8f1b53251a083ccde7f42cb7307b3fe4ca2998863ac6c22e
