[INFO] cloning repository https://github.com/donkebap/tcfinder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/donkebap/tcfinder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonkebap%2Ftcfinder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonkebap%2Ftcfinder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33541e11966b8b1283340f0d9603b630efb56271
[INFO] documenting donkebap/tcfinder 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%2Fdonkebap%2Ftcfinder" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/donkebap/tcfinder 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/donkebap/tcfinder
[INFO] finished tweaking git repo https://github.com/donkebap/tcfinder
[INFO] tweaked toml for git repo https://github.com/donkebap/tcfinder written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/donkebap/tcfinder 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 2a4acb76eafbb7c34f6ad2584bf7b052bbbffd87bf9590dd2c93291261e278c9
[INFO] running `Command { std: "docker" "start" "-a" "2a4acb76eafbb7c34f6ad2584bf7b052bbbffd87bf9590dd2c93291261e278c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a4acb76eafbb7c34f6ad2584bf7b052bbbffd87bf9590dd2c93291261e278c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4acb76eafbb7c34f6ad2584bf7b052bbbffd87bf9590dd2c93291261e278c9", kill_on_drop: false }`
[INFO] [stdout] 2a4acb76eafbb7c34f6ad2584bf7b052bbbffd87bf9590dd2c93291261e278c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] bd90a24794da5586d4e862183e528183677c9745def35f58c44c877f0039b467
[INFO] running `Command { std: "docker" "start" "-a" "bd90a24794da5586d4e862183e528183677c9745def35f58c44c877f0039b467", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]    Compiling tcfinder v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]  Documenting tcfinder v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin, test, simd_ffi, repr_simd)]
[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 `tcfinder`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name tcfinder src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=d3d74a8bc8118832 -L dependency=/opt/rustwide/target/debug/deps --extern docopt=/opt/rustwide/target/debug/deps/libdocopt-84546a59bd6ffdcb.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-cd673c89943f1ce4.rmeta --extern pbr=/opt/rustwide/target/debug/deps/libpbr-fd48dd0e19e81a46.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-0499e1150891fe54.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-133015b43c1c35be.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b11e3f72ebeb33a0.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-a5109b7b6e15fc9b.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-39f06d14e7360399.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bd90a24794da5586d4e862183e528183677c9745def35f58c44c877f0039b467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd90a24794da5586d4e862183e528183677c9745def35f58c44c877f0039b467", kill_on_drop: false }`
[INFO] [stdout] bd90a24794da5586d4e862183e528183677c9745def35f58c44c877f0039b467