[INFO] cloning repository https://github.com/tracer-protocol/tracer-ome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tracer-protocol/tracer-ome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftracer-protocol%2Ftracer-ome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftracer-protocol%2Ftracer-ome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2400e042205678a8b6932389c8c90b53598d1cf8
[INFO] documenting tracer-protocol/tracer-ome against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftracer-protocol%2Ftracer-ome" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tracer-protocol/tracer-ome 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 git repo https://github.com/tracer-protocol/tracer-ome
[INFO] finished tweaking git repo https://github.com/tracer-protocol/tracer-ome
[INFO] tweaked toml for git repo https://github.com/tracer-protocol/tracer-ome written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tracer-protocol/tracer-ome 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]  Downloading crates ...
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded blocking v1.0.2
[INFO] [stderr]   Downloaded futures-sink v0.3.14
[INFO] [stderr]   Downloaded futures-task v0.3.14
[INFO] [stderr]   Downloaded tokio-util v0.6.6
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded warp v0.3.1
[INFO] [stderr]   Downloaded async-std v1.9.0
[INFO] [stderr]   Downloaded async-native-tls v0.3.3
[INFO] [stderr]   Downloaded async-mutex v1.4.0
[INFO] [stderr]   Downloaded async-io v1.4.0
[INFO] [stderr]   Downloaded reqwest v0.11.3
[INFO] [stderr]   Downloaded enum-display-derive v0.1.1
[INFO] [stderr]   Downloaded webpki v0.21.2
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] [stderr]   Downloaded soketto v0.4.2
[INFO] [stderr]   Downloaded tungstenite v0.12.0
[INFO] [stderr]   Downloaded ring v0.16.12
[INFO] [stderr]   Downloaded futures-util v0.3.14
[INFO] [stderr]   Downloaded atomic-waker v1.0.0
[INFO] [stderr]   Downloaded web3 v0.13.0
[INFO] [stderr]   Downloaded httparse v1.4.0
[INFO] [stderr]   Downloaded hyper v0.14.6
[INFO] [stderr]   Downloaded tokio-stream v0.1.5
[INFO] [stderr]   Downloaded input_buffer v0.4.0
[INFO] [stderr]   Downloaded tokio-tungstenite v0.13.0
[INFO] [stderr]   Downloaded async-lock v2.4.0
[INFO] [stderr]   Downloaded futures-timer v3.0.2
[INFO] [stderr]   Downloaded polling v2.0.3
[INFO] [stderr]   Downloaded derive_more v0.99.13
[INFO] [stderr]   Downloaded syn v1.0.70
[INFO] [stderr]   Downloaded wepoll-sys v3.0.1
[INFO] [stderr]   Downloaded gloo-timers v0.2.1
[INFO] [stderr]   Downloaded jsonrpc-core v14.2.0
[INFO] [stderr]   Downloaded cc v1.0.41
[INFO] [stderr]   Downloaded secp256k1-sys v0.1.2
[INFO] [stderr]   Downloaded secp256k1 v0.17.2
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded futures-channel v0.3.14
[INFO] [stderr]   Downloaded async-global-executor v2.0.2
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aed27338cd5acbc727689c53d15a8f9741acd1c0f95f0de238c90f5189e90db6
[INFO] running `Command { std: "docker" "start" "-a" "aed27338cd5acbc727689c53d15a8f9741acd1c0f95f0de238c90f5189e90db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aed27338cd5acbc727689c53d15a8f9741acd1c0f95f0de238c90f5189e90db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aed27338cd5acbc727689c53d15a8f9741acd1c0f95f0de238c90f5189e90db6", kill_on_drop: false }`
[INFO] [stdout] aed27338cd5acbc727689c53d15a8f9741acd1c0f95f0de238c90f5189e90db6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 04e7c6e5dd542cc50088e5b7777ad05e4480390d6b38386aa9e119bddb5f8284
[INFO] running `Command { std: "docker" "start" "-a" "04e7c6e5dd542cc50088e5b7777ad05e4480390d6b38386aa9e119bddb5f8284", 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]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking rlp v0.4.6
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking ring v0.16.12
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking impl-rlp v0.2.1
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]     Checking fixed-hash v0.6.1
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking tungstenite v0.12.0
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking async-io v1.4.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking parity-scale-codec v1.3.7
[INFO] [stderr]     Checking impl-serde v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking ethbloom v0.9.2
[INFO] [stderr]     Checking soketto v0.4.2
[INFO] [stderr]     Checking jsonrpc-core v14.2.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking tokio-tungstenite v0.13.0
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking impl-codec v0.4.2
[INFO] [stderr]     Checking primitive-types v0.7.3
[INFO] [stderr]     Checking ethereum-types v0.9.2
[INFO] [stderr]     Checking hyper v0.14.6
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking ethabi v12.0.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking warp v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking web3 v0.13.0
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]  Documenting tracer-ome v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(result_contains_err)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `tracer-ome`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tracer_ome src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern byte_slice_cast=/opt/rustwide/target/debug/deps/libbyte_slice_cast-79392fb0bd12ce86.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-bd8a801b2746a03c.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-b84f3c543312ebeb.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-04a6899c4133df5f.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-b21c91866a42cbf2.so --extern enum_display_derive=/opt/rustwide/target/debug/deps/libenum_display_derive-afdac6b9cf0c7868.so --extern ethabi=/opt/rustwide/target/debug/deps/libethabi-346fd3158c112238.rmeta --extern ethereum_types=/opt/rustwide/target/debug/deps/libethereum_types-e51d3109ab837b20.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-e6b019cdb61312b0.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-3303e62dbe377562.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-0219993a3d642127.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-ce1ecca8b11a3bfd.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-b6dcb7686c28a47c.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-78b8c5450d20d4be.rmeta --extern rlp=/opt/rustwide/target/debug/deps/librlp-69b4c05b0e69f710.rmeta --extern rustc_hex=/opt/rustwide/target/debug/deps/librustc_hex-e5c8edcdab5e9b31.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-fe5d22415b4df98f.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-667a8994aa4a3787.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-0d7aaf766a76aadc.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-5b2655cdd7babd98.rmeta --extern warp=/opt/rustwide/target/debug/deps/libwarp-68a1fdabfa1b8128.rmeta --extern web3=/opt/rustwide/target/debug/deps/libweb3-8218300138d9a10e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "04e7c6e5dd542cc50088e5b7777ad05e4480390d6b38386aa9e119bddb5f8284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e7c6e5dd542cc50088e5b7777ad05e4480390d6b38386aa9e119bddb5f8284", kill_on_drop: false }`
[INFO] [stdout] 04e7c6e5dd542cc50088e5b7777ad05e4480390d6b38386aa9e119bddb5f8284
