[INFO] cloning repository https://github.com/FauxFaux/pack2tri
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FauxFaux/pack2tri" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fpack2tri", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fpack2tri'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ee91a83ed70e9644394e2023a6b9022982b01a6
[INFO] documenting FauxFaux/pack2tri against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fpack2tri" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/pack2tri on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FauxFaux/pack2tri
[INFO] finished tweaking git repo https://github.com/FauxFaux/pack2tri
[INFO] tweaked toml for git repo https://github.com/FauxFaux/pack2tri written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/pack2tri already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded byteorder v0.4.2
[INFO] [stderr]   Downloaded argparse v0.2.1
[INFO] [stderr]   Downloaded num-bigint v0.1.37
[INFO] [stderr]   Downloaded num-rational v0.1.36
[INFO] [stderr]   Downloaded num v0.1.37
[INFO] [stderr]   Downloaded num-integer v0.1.33
[INFO] [stderr]   Downloaded num-complex v0.1.36
[INFO] [stderr]   Downloaded bit-vec v0.4.3
[INFO] [stderr]   Downloaded compress v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2114627c3f5ab5bfd5292a0a90b35fb7ba3970daddc808c84562487e7c491e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b2114627c3f5ab5bfd5292a0a90b35fb7ba3970daddc808c84562487e7c491e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2114627c3f5ab5bfd5292a0a90b35fb7ba3970daddc808c84562487e7c491e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2114627c3f5ab5bfd5292a0a90b35fb7ba3970daddc808c84562487e7c491e3", kill_on_drop: false }`
[INFO] [stdout] b2114627c3f5ab5bfd5292a0a90b35fb7ba3970daddc808c84562487e7c491e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b023b90f22ddf335cf4d265c2ddbed9aaa7930add686e8109bd2d8516abc401
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b023b90f22ddf335cf4d265c2ddbed9aaa7930add686e8109bd2d8516abc401", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-integer v0.1.33
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking num-complex v0.1.36
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking compress v0.1.2
[INFO] [stderr]  Documenting pack2tri v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]  --> src/bin/tri/mod.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type CharResult = Result<char, io::CharsError>;
[INFO] [stdout]   |                                        ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/search.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `pack2tri`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name search src/bin/search.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern argparse=/opt/rustwide/target/debug/deps/libargparse-93883f341f980b63.rmeta --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-6314a54b715c0ed5.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-25013ab44d798b82.rmeta --extern compress=/opt/rustwide/target/debug/deps/libcompress-2ef320a1ddbb3873.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-05ab22a8ca5c1f24.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-9feb0fef9260d5e2.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]  --> src/bin/tri/mod.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type CharResult = Result<char, io::CharsError>;
[INFO] [stdout]   |                                        ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/indexer.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(decode_utf8)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/indexer.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io)]
[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] Some errors have detailed explanations: E0412, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b023b90f22ddf335cf4d265c2ddbed9aaa7930add686e8109bd2d8516abc401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b023b90f22ddf335cf4d265c2ddbed9aaa7930add686e8109bd2d8516abc401", kill_on_drop: false }`
[INFO] [stdout] 4b023b90f22ddf335cf4d265c2ddbed9aaa7930add686e8109bd2d8516abc401