[INFO] cloning repository https://github.com/ppedrot/kravanenn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ppedrot/kravanenn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fppedrot%2Fkravanenn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fppedrot%2Fkravanenn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61f089e2091d1f0c4eb57b2617532e7bee63508d
[INFO] documenting ppedrot/kravanenn 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%2Fppedrot%2Fkravanenn" "/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/ppedrot/kravanenn 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/ppedrot/kravanenn
[INFO] finished tweaking git repo https://github.com/ppedrot/kravanenn
[INFO] tweaked toml for git repo https://github.com/ppedrot/kravanenn written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ppedrot/kravanenn 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stdout] f12b2b6a04602a64800af109809ece39ca9fed1f8e95e2006441bbf3511e1857
[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" "f12b2b6a04602a64800af109809ece39ca9fed1f8e95e2006441bbf3511e1857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f12b2b6a04602a64800af109809ece39ca9fed1f8e95e2006441bbf3511e1857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12b2b6a04602a64800af109809ece39ca9fed1f8e95e2006441bbf3511e1857", kill_on_drop: false }`
[INFO] [stdout] f12b2b6a04602a64800af109809ece39ca9fed1f8e95e2006441bbf3511e1857
[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] 7d6fc309103fd2dab061591670be61512014d130c618a0374db10adfc6fdd9a4
[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" "7d6fc309103fd2dab061591670be61512014d130c618a0374db10adfc6fdd9a4", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.21
[INFO] [stderr]     Checking crossbeam v0.3.0
[INFO] [stderr]     Checking typed-arena v1.3.0
[INFO] [stderr]     Checking smallvec v0.5.0
[INFO] [stderr]     Checking light_arena v0.1.1
[INFO] [stderr]     Checking take_mut v0.2.0
[INFO] [stderr]     Checking fixedbitset v0.1.8
[INFO] [stderr]     Checking lazy-init v0.2.0
[INFO] [stderr]     Checking movecell v0.2.0
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Placer`, `std::ops::Place`, `std::ops::InPlace`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/light_arena-0.1.1/src/lib.rs:80:16
[INFO] [stdout]    |
[INFO] [stdout] 80 | use std::ops::{Placer, Place, InPlace};
[INFO] [stdout]    |                ^^^^^^  ^^^^^  ^^^^^^^ no `InPlace` in `ops`
[INFO] [stdout]    |                |       |
[INFO] [stdout]    |                |       no `Place` in `ops`
[INFO] [stdout]    |                no `Placer` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/light_arena-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(placement_in_syntax, placement_new_protocol)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `light_arena`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7d6fc309103fd2dab061591670be61512014d130c618a0374db10adfc6fdd9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6fc309103fd2dab061591670be61512014d130c618a0374db10adfc6fdd9a4", kill_on_drop: false }`
[INFO] [stdout] 7d6fc309103fd2dab061591670be61512014d130c618a0374db10adfc6fdd9a4