[INFO] cloning repository https://github.com/RagibHasin/ruetian-data-expander
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RagibHasin/ruetian-data-expander" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagibHasin%2Fruetian-data-expander", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagibHasin%2Fruetian-data-expander'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 180fc948e5d6f18e45966a6d6bb90e21afadb2e3
[INFO] documenting RagibHasin/ruetian-data-expander 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%2FRagibHasin%2Fruetian-data-expander" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RagibHasin/ruetian-data-expander 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/RagibHasin/ruetian-data-expander
[INFO] finished tweaking git repo https://github.com/RagibHasin/ruetian-data-expander
[INFO] tweaked toml for git repo https://github.com/RagibHasin/ruetian-data-expander written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/RagibHasin/ruetian-data-expander 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] [stderr] warning: unused manifest key: package.private
[INFO] [stderr]     Updating git repository `https://github.com/RagibHasin/ruetian-common`
[INFO] [stderr]     Updating git repository `https://github.com/RagibHasin/duration_utils-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] d1a2b7750ef36057509d19e8fc50c03d0fbdbf04c632af0aa391f95886fcc49d
[INFO] running `Command { std: "docker" "start" "-a" "d1a2b7750ef36057509d19e8fc50c03d0fbdbf04c632af0aa391f95886fcc49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1a2b7750ef36057509d19e8fc50c03d0fbdbf04c632af0aa391f95886fcc49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a2b7750ef36057509d19e8fc50c03d0fbdbf04c632af0aa391f95886fcc49d", kill_on_drop: false }`
[INFO] [stdout] d1a2b7750ef36057509d19e8fc50c03d0fbdbf04c632af0aa391f95886fcc49d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 312bca0257936c75b60534d2ebea43faa30fb46eebacd0f6e2f1696b37362343
[INFO] running `Command { std: "docker" "start" "-a" "312bca0257936c75b60534d2ebea43faa30fb46eebacd0f6e2f1696b37362343", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.private
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking strum v0.17.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking duration_utils v0.1.0 (https://github.com/RagibHasin/duration_utils-rs#180369d4)
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.2
[INFO] [stderr]     Checking num_enum v0.4.2
[INFO] [stderr]     Checking ruetian-common v0.1.0 (https://github.com/RagibHasin/ruetian-common#c6a09da8)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/ruetian-common-a6b16a2e8e9b5872/c6a09da/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(range_is_empty)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/ruetian-common-a6b16a2e8e9b5872/c6a09da/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 compile `ruetian-common` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "312bca0257936c75b60534d2ebea43faa30fb46eebacd0f6e2f1696b37362343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "312bca0257936c75b60534d2ebea43faa30fb46eebacd0f6e2f1696b37362343", kill_on_drop: false }`
[INFO] [stdout] 312bca0257936c75b60534d2ebea43faa30fb46eebacd0f6e2f1696b37362343
