[INFO] cloning repository https://github.com/csm123199/aochelper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/csm123199/aochelper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsm123199%2Faochelper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsm123199%2Faochelper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 179006473113bfb2d0d576e52cb35117396e36c8
[INFO] documenting csm123199/aochelper 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%2Fcsm123199%2Faochelper" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/csm123199/aochelper 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/csm123199/aochelper
[INFO] finished tweaking git repo https://github.com/csm123199/aochelper
[INFO] tweaked toml for git repo https://github.com/csm123199/aochelper written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/csm123199/aochelper 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 315e6252191784fbd1048b86bb31687ca424c2eaf7fcb85ef2aa4085d3d4a687
[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" "315e6252191784fbd1048b86bb31687ca424c2eaf7fcb85ef2aa4085d3d4a687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "315e6252191784fbd1048b86bb31687ca424c2eaf7fcb85ef2aa4085d3d4a687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "315e6252191784fbd1048b86bb31687ca424c2eaf7fcb85ef2aa4085d3d4a687", kill_on_drop: false }`
[INFO] [stdout] 315e6252191784fbd1048b86bb31687ca424c2eaf7fcb85ef2aa4085d3d4a687
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f7c7cba79c34f4ec6f0fc1f3f087e9d8579f48c0c561e1c946a4e192d012e61d
[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" "f7c7cba79c34f4ec6f0fc1f3f087e9d8579f48c0c561e1c946a4e192d012e61d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking ptree v0.2.1
[INFO] [stderr]  Documenting aochelper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(termination_trait_lib)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_type_defaults)]
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `aochelper`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name aochelper 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 atty=/opt/rustwide/target/debug/deps/libatty-1dbddb0ef923b15b.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-689499087ea79543.rmeta --extern ptree=/opt/rustwide/target/debug/deps/libptree-c9727b247db06ceb.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "f7c7cba79c34f4ec6f0fc1f3f087e9d8579f48c0c561e1c946a4e192d012e61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c7cba79c34f4ec6f0fc1f3f087e9d8579f48c0c561e1c946a4e192d012e61d", kill_on_drop: false }`
[INFO] [stdout] f7c7cba79c34f4ec6f0fc1f3f087e9d8579f48c0c561e1c946a4e192d012e61d