[INFO] fetching crate wtf-rlsr 1.1.1...
[INFO] documenting wtf-rlsr-1.1.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate wtf-rlsr 1.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wtf-rlsr 1.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wtf-rlsr 1.1.1
[INFO] finished tweaking crates.io crate wtf-rlsr 1.1.1
[INFO] tweaked toml for crates.io crate wtf-rlsr 1.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate wtf-rlsr 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16ee5a8be9286bf6d28d1a9dbc216f3eb48d7acc5082566d492c2c7d088f9c07
[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" "16ee5a8be9286bf6d28d1a9dbc216f3eb48d7acc5082566d492c2c7d088f9c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16ee5a8be9286bf6d28d1a9dbc216f3eb48d7acc5082566d492c2c7d088f9c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ee5a8be9286bf6d28d1a9dbc216f3eb48d7acc5082566d492c2c7d088f9c07", kill_on_drop: false }`
[INFO] [stdout] 16ee5a8be9286bf6d28d1a9dbc216f3eb48d7acc5082566d492c2c7d088f9c07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26d5043e0e9e28a2109ccda432991355f1a941b50366e75a5b88084c5e16ead4
[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" "26d5043e0e9e28a2109ccda432991355f1a941b50366e75a5b88084c5e16ead4", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking home v0.5.1
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking colored v1.9.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking git2 v0.10.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking proc-macro2 v1.0.7
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking dialoguer v0.5.0
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]     Checking syn v1.0.13
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling const-random-macro v0.1.6
[INFO] [stderr]     Checking git2-curl v0.11.0
[INFO] [stderr]     Checking const-random v0.1.6
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking which v3.1.0
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking cargo-platform v0.1.0
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking serde_ignored v0.1.1
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]     Checking crates-io v0.29.0
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Checking cargo v0.41.0
[INFO] [stderr]  Documenting wtf-rlsr v1.1.1 (/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(str_strip, try_trait)]
[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 `wtf-rlsr`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name wtf_rlsr 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 cargo=/opt/rustwide/target/debug/deps/libcargo-0a8a9006a7428e6b.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-279b99ef4551865f.rmeta --extern console=/opt/rustwide/target/debug/deps/libconsole-f31e613ea2e49d62.rmeta --extern dialoguer=/opt/rustwide/target/debug/deps/libdialoguer-9bac496ce4fba1cc.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-0077cb11dc92a5d0.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-30766e92e0e95faf.rmeta --extern fs_extra=/opt/rustwide/target/debug/deps/libfs_extra-5a9380f3e35b2011.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-d7852d9b48309ce4.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-057d1e4bc2673252.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-5426a245e774beb0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-69d9a7f018cb28c7.rmeta --extern pathdiff=/opt/rustwide/target/debug/deps/libpathdiff-4b2b9dc9b61050ba.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-3ecac7fdfa3996f5.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-8f77a8a3f04a6524.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-34d7fbcc1f61e61d.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-981c6a5f85578d4c.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6d00272afd0c7de3.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-433337e6869b52a2.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-a2abddace9c6a908.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-cf97644a183d8f70.rmeta --extern which=/opt/rustwide/target/debug/deps/libwhich-6771a07b7f839092.rmeta --cap-lints=warn --crate-version 1.1.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "26d5043e0e9e28a2109ccda432991355f1a941b50366e75a5b88084c5e16ead4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26d5043e0e9e28a2109ccda432991355f1a941b50366e75a5b88084c5e16ead4", kill_on_drop: false }`
[INFO] [stdout] 26d5043e0e9e28a2109ccda432991355f1a941b50366e75a5b88084c5e16ead4
