[INFO] cloning repository https://github.com/souvik1997/radish
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/souvik1997/radish" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fradish", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fradish'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 398b7f0bba49ff0789344013632e1b4886e9f620
[INFO] documenting souvik1997/radish against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsouvik1997%2Fradish" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/souvik1997/radish on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/souvik1997/radish
[INFO] finished tweaking git repo https://github.com/souvik1997/radish
[INFO] tweaked toml for git repo https://github.com/souvik1997/radish written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/souvik1997/radish already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fdcaa352a5ddb15bd30db94fbc0f433b9ac4a5d06ffc74d4984a098fccbde82b
[INFO] running `Command { std: "docker" "start" "-a" "fdcaa352a5ddb15bd30db94fbc0f433b9ac4a5d06ffc74d4984a098fccbde82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdcaa352a5ddb15bd30db94fbc0f433b9ac4a5d06ffc74d4984a098fccbde82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcaa352a5ddb15bd30db94fbc0f433b9ac4a5d06ffc74d4984a098fccbde82b", kill_on_drop: false }`
[INFO] [stdout] fdcaa352a5ddb15bd30db94fbc0f433b9ac4a5d06ffc74d4984a098fccbde82b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d032b9c35f8be8e7452fe41de7f38ebd964ac6d7a46575db933e9795585da04
[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" "0d032b9c35f8be8e7452fe41de7f38ebd964ac6d7a46575db933e9795585da04", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking users v0.6.0
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.8.1
[INFO] [stderr]    Compiling rlua v0.10.2
[INFO] [stderr]    Compiling diesel_derives v1.0.0
[INFO] [stderr]     Checking diesel v1.0.0
[INFO] [stderr]  Documenting radish v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(collections_range)]
[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 `radish`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name radish 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 bitflags=/opt/rustwide/target/debug/deps/libbitflags-a89612c8cfb60e64.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-e9e44d8eab6e06bb.rmeta --extern diesel=/opt/rustwide/target/debug/deps/libdiesel-e2e18b93e2f0a9b6.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-732e50766ae135c1.rmeta --extern libsqlite3_sys=/opt/rustwide/target/debug/deps/liblibsqlite3_sys-40e3e825acc235fd.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-859282698aeee7e1.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-a37c6019fceb6152.rmeta --extern rlua=/opt/rustwide/target/debug/deps/librlua-cbb05369ac5f9310.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-63d00369ad36d2b0.rmeta --extern termion=/opt/rustwide/target/debug/deps/libtermion-2707e7f91fbba6f5.rmeta --extern unicode_normalization=/opt/rustwide/target/debug/deps/libunicode_normalization-ced22094ff7776bc.rmeta --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-ee4188535f9cdbd8.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-a2057a4e355c4da5.rmeta --extern users=/opt/rustwide/target/debug/deps/libusers-39f225d5070582bc.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "0d032b9c35f8be8e7452fe41de7f38ebd964ac6d7a46575db933e9795585da04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d032b9c35f8be8e7452fe41de7f38ebd964ac6d7a46575db933e9795585da04", kill_on_drop: false }`
[INFO] [stdout] 0d032b9c35f8be8e7452fe41de7f38ebd964ac6d7a46575db933e9795585da04