[INFO] cloning repository https://github.com/PsychicNoodles/khal-notify
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PsychicNoodles/khal-notify" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPsychicNoodles%2Fkhal-notify", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPsychicNoodles%2Fkhal-notify'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5122213c1c052cfdd57d8748107bf8c02d6d4fb4
[INFO] documenting PsychicNoodles/khal-notify against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPsychicNoodles%2Fkhal-notify" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PsychicNoodles/khal-notify on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PsychicNoodles/khal-notify
[INFO] finished tweaking git repo https://github.com/PsychicNoodles/khal-notify
[INFO] tweaked toml for git repo https://github.com/PsychicNoodles/khal-notify written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/PsychicNoodles/khal-notify already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cded17e719a7ed07fc9bd29d5511811e6bc7c13f1df98eafe1d029014bbe289
[INFO] running `Command { std: "docker" "start" "-a" "2cded17e719a7ed07fc9bd29d5511811e6bc7c13f1df98eafe1d029014bbe289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cded17e719a7ed07fc9bd29d5511811e6bc7c13f1df98eafe1d029014bbe289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cded17e719a7ed07fc9bd29d5511811e6bc7c13f1df98eafe1d029014bbe289", kill_on_drop: false }`
[INFO] [stdout] 2cded17e719a7ed07fc9bd29d5511811e6bc7c13f1df98eafe1d029014bbe289
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1e54f76de64a579049644d3776a23f8f38b880ee18464ba7bd4e7b90a51ab90
[INFO] running `Command { std: "docker" "start" "-a" "a1e54f76de64a579049644d3776a23f8f38b880ee18464ba7bd4e7b90a51ab90", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]  Documenting khal-notify v0.1.0 (/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(iter_intersperse)]
[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 `khal-notify`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name khal_notify src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-a62a4e09b7aef6f5.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-4d8b881af54b07b2.rmeta --extern opener=/opt/rustwide/target/debug/deps/libopener-7ac357d38b55804b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-fd7c22c517e8d025.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-3d67caca2a230063.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-d546c01217df3e36.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-a1110218a0fc0aa8.rmeta --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-53a71a7aed5f6543.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a1e54f76de64a579049644d3776a23f8f38b880ee18464ba7bd4e7b90a51ab90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e54f76de64a579049644d3776a23f8f38b880ee18464ba7bd4e7b90a51ab90", kill_on_drop: false }`
[INFO] [stdout] a1e54f76de64a579049644d3776a23f8f38b880ee18464ba7bd4e7b90a51ab90
