[INFO] fetching crate gene-seq-intersections 0.3.1...
[INFO] documenting gene-seq-intersections-0.3.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate gene-seq-intersections 0.3.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate gene-seq-intersections 0.3.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gene-seq-intersections 0.3.1
[INFO] finished tweaking crates.io crate gene-seq-intersections 0.3.1
[INFO] tweaked toml for crates.io crate gene-seq-intersections 0.3.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "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] 08c4570c787dad670eae7277844fc81422e11ddc4fd06be1a5bf55dd41ac9869
[INFO] running `Command { std: "docker" "start" "-a" "08c4570c787dad670eae7277844fc81422e11ddc4fd06be1a5bf55dd41ac9869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08c4570c787dad670eae7277844fc81422e11ddc4fd06be1a5bf55dd41ac9869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c4570c787dad670eae7277844fc81422e11ddc4fd06be1a5bf55dd41ac9869", kill_on_drop: false }`
[INFO] [stdout] 08c4570c787dad670eae7277844fc81422e11ddc4fd06be1a5bf55dd41ac9869
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 98ce49799ade1a01fe8627550f91bd2ed18f13ca2220840b7647f62e3f8799d7
[INFO] running `Command { std: "docker" "start" "-a" "98ce49799ade1a01fe8627550f91bd2ed18f13ca2220840b7647f62e3f8799d7", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking twox-hash v1.6.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking jobsteal v0.5.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]  Documenting gene-seq-intersections v0.3.1 (/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(integer_atomics)]
[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 `gene-seq-intersections`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name intersections 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-2fd431a7bc590d48.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-df1a99501436601c.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-7120a6cfc9ed8282.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-eb40d7f241f41d96.rmeta --extern jobsteal=/opt/rustwide/target/debug/deps/libjobsteal-786c8bb2da48b372.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-7716449a6325aa11.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-eb6cdf579abc545a.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5f078a3096470b53.so --extern twox_hash=/opt/rustwide/target/debug/deps/libtwox_hash-05bb81e0dba2fe21.rmeta --extern typed_arena=/opt/rustwide/target/debug/deps/libtyped_arena-7c1876b9605e2350.rmeta --cap-lints=warn --crate-version 0.3.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "98ce49799ade1a01fe8627550f91bd2ed18f13ca2220840b7647f62e3f8799d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ce49799ade1a01fe8627550f91bd2ed18f13ca2220840b7647f62e3f8799d7", kill_on_drop: false }`
[INFO] [stdout] 98ce49799ade1a01fe8627550f91bd2ed18f13ca2220840b7647f62e3f8799d7
