[INFO] cloning repository https://github.com/dave-nachman/bytelang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dave-nachman/bytelang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave-nachman%2Fbytelang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave-nachman%2Fbytelang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4e786c67b57e3cd5cbc287a0e458ea0ab92476e
[INFO] documenting dave-nachman/bytelang against try#958246c3cfeb0a72f9a664bc7c584741fa1a805b for pr-107291
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave-nachman%2Fbytelang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dave-nachman/bytelang on toolchain 958246c3cfeb0a72f9a664bc7c584741fa1a805b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+958246c3cfeb0a72f9a664bc7c584741fa1a805b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dave-nachman/bytelang
[INFO] finished tweaking git repo https://github.com/dave-nachman/bytelang
[INFO] tweaked toml for git repo https://github.com/dave-nachman/bytelang written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dave-nachman/bytelang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+958246c3cfeb0a72f9a664bc7c584741fa1a805b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+958246c3cfeb0a72f9a664bc7c584741fa1a805b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d040431ac8adae53b1ccf6b558b1ca7c6726f2dd3e204ac24bc60cf6b4b562dd
[INFO] running `Command { std: "docker" "start" "-a" "d040431ac8adae53b1ccf6b558b1ca7c6726f2dd3e204ac24bc60cf6b4b562dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d040431ac8adae53b1ccf6b558b1ca7c6726f2dd3e204ac24bc60cf6b4b562dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d040431ac8adae53b1ccf6b558b1ca7c6726f2dd3e204ac24bc60cf6b4b562dd", kill_on_drop: false }`
[INFO] [stdout] d040431ac8adae53b1ccf6b558b1ca7c6726f2dd3e204ac24bc60cf6b4b562dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+958246c3cfeb0a72f9a664bc7c584741fa1a805b" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d67b1d9f4b79b1c55f55e79fed5cfab3fa7dc65dcdd1c4a58f3c21e04faaeab
[INFO] running `Command { std: "docker" "start" "-a" "1d67b1d9f4b79b1c55f55e79fed5cfab3fa7dc65dcdd1c4a58f3c21e04faaeab", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling lalrpop-util v0.15.2
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling ena v0.5.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling lalrpop-snap v0.15.2
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling lalrpop v0.15.2
[INFO] [stderr]    Compiling bytelang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting bytelang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3887:5
[INFO] [stdout]      |
[INFO] [stdout] 3887 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3887 -     (__0)
[INFO] [stdout] 3887 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3898:5
[INFO] [stdout]      |
[INFO] [stdout] 3898 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3898 -     (__0)
[INFO] [stdout] 3898 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3909:5
[INFO] [stdout]      |
[INFO] [stdout] 3909 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3909 -     (__0)
[INFO] [stdout] 3909 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3920:5
[INFO] [stdout]      |
[INFO] [stdout] 3920 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3920 -     (__0)
[INFO] [stdout] 3920 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3931:5
[INFO] [stdout]      |
[INFO] [stdout] 3931 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3931 -     (__0)
[INFO] [stdout] 3931 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3942:5
[INFO] [stdout]      |
[INFO] [stdout] 3942 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3942 -     (__0)
[INFO] [stdout] 3942 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3966:5
[INFO] [stdout]      |
[INFO] [stdout] 3966 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3966 -     (__0)
[INFO] [stdout] 3966 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:3977:5
[INFO] [stdout]      |
[INFO] [stdout] 3977 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3977 -     (__0)
[INFO] [stdout] 3977 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:4023:5
[INFO] [stdout]      |
[INFO] [stdout] 4023 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4023 -     (__0)
[INFO] [stdout] 4023 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:4128:5
[INFO] [stdout]      |
[INFO] [stdout] 4128 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4128 -     (__0)
[INFO] [stdout] 4128 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/parser.rs:4141:5
[INFO] [stdout]      |
[INFO] [stdout] 4141 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4141 -     (__0)
[INFO] [stdout] 4141 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.61s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.15.2, lalrpop-snap v0.15.2
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1d67b1d9f4b79b1c55f55e79fed5cfab3fa7dc65dcdd1c4a58f3c21e04faaeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d67b1d9f4b79b1c55f55e79fed5cfab3fa7dc65dcdd1c4a58f3c21e04faaeab", kill_on_drop: false }`
[INFO] [stdout] 1d67b1d9f4b79b1c55f55e79fed5cfab3fa7dc65dcdd1c4a58f3c21e04faaeab