[INFO] cloning repository https://github.com/willcrichton/psiop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willcrichton/psiop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillcrichton%2Fpsiop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillcrichton%2Fpsiop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db083b110c0194dd60df203441023a4ade4624cf
[INFO] documenting willcrichton/psiop against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillcrichton%2Fpsiop" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willcrichton/psiop on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/willcrichton/psiop
[INFO] finished tweaking git repo https://github.com/willcrichton/psiop
[INFO] tweaked toml for git repo https://github.com/willcrichton/psiop written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/willcrichton/psiop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38d6bcdc00494b469104160c467a107632cc0a4a90acb035de41394c23c1cbf5
[INFO] running `Command { std: "docker" "start" "-a" "38d6bcdc00494b469104160c467a107632cc0a4a90acb035de41394c23c1cbf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38d6bcdc00494b469104160c467a107632cc0a4a90acb035de41394c23c1cbf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38d6bcdc00494b469104160c467a107632cc0a4a90acb035de41394c23c1cbf5", kill_on_drop: false }`
[INFO] [stdout] 38d6bcdc00494b469104160c467a107632cc0a4a90acb035de41394c23c1cbf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3e7355fb0caf0133b97c2d3c1315436b9ca5c9a53cb2d0e430a37da94d6c0fb
[INFO] running `Command { std: "docker" "start" "-a" "c3e7355fb0caf0133b97c2d3c1315436b9ca5c9a53cb2d0e430a37da94d6c0fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking peg v0.7.0
[INFO] [stderr]     Checking string-interner v0.12.2
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]  Documenting psiop 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(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 `psiop`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name psiop src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2b9a949fe003bb01 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-277327711cafc584.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern logos=/opt/rustwide/target/debug/deps/liblogos-ef1dd1d0ead899b6.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-968ec89f12a946c3.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-10adaac0df10b1d1.rmeta --extern peg=/opt/rustwide/target/debug/deps/libpeg-8f86edd45b0f1b66.rmeta --extern pretty=/opt/rustwide/target/debug/deps/libpretty-507407499b595b89.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-7313f661094e7418.rmeta --extern string_interner=/opt/rustwide/target/debug/deps/libstring_interner-a5ecb023cac643b8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c3e7355fb0caf0133b97c2d3c1315436b9ca5c9a53cb2d0e430a37da94d6c0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e7355fb0caf0133b97c2d3c1315436b9ca5c9a53cb2d0e430a37da94d6c0fb", kill_on_drop: false }`
[INFO] [stdout] c3e7355fb0caf0133b97c2d3c1315436b9ca5c9a53cb2d0e430a37da94d6c0fb