[INFO] fetching crate clear-coat 0.0.3...
[INFO] documenting clear-coat-0.0.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate clear-coat 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate clear-coat 0.0.3 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 crates.io crate clear-coat 0.0.3
[INFO] finished tweaking crates.io crate clear-coat 0.0.3
[INFO] tweaked toml for crates.io crate clear-coat 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e3148a1d4b34dc1b4282821a696f1b3412179fd33fb6161ad28d451fb49f6c07
[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" "e3148a1d4b34dc1b4282821a696f1b3412179fd33fb6161ad28d451fb49f6c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3148a1d4b34dc1b4282821a696f1b3412179fd33fb6161ad28d451fb49f6c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3148a1d4b34dc1b4282821a696f1b3412179fd33fb6161ad28d451fb49f6c07", kill_on_drop: false }`
[INFO] [stdout] e3148a1d4b34dc1b4282821a696f1b3412179fd33fb6161ad28d451fb49f6c07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ddd70885fbda3e8108694d08f6ac4fca5b0e65ccdef9a0673c5057953a6262d3
[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" "ddd70885fbda3e8108694d08f6ac4fca5b0e65ccdef9a0673c5057953a6262d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling iup-sys v0.0.3
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]  Documenting clear-coat v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::panic::RecoverSafe`
[INFO] [stdout]   --> src/callbacks.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::panic::{self, RecoverSafe};
[INFO] [stdout]    |                        ^^^^^^^^^^^ no `RecoverSafe` in `panic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(coerce_unsized)]
[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:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(std_panic)]
[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:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(recover)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `clear-coat`.
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name clear_coat 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 iup_sys=/opt/rustwide/target/debug/deps/libiup_sys-9a57a7af0d9c9c7a.rmeta --extern kernel32=/opt/rustwide/target/debug/deps/libkernel32-03c247914a1985c7.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-1ad3ad1e20beb97f.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-fcfb9adca229e348.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ddd70885fbda3e8108694d08f6ac4fca5b0e65ccdef9a0673c5057953a6262d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd70885fbda3e8108694d08f6ac4fca5b0e65ccdef9a0673c5057953a6262d3", kill_on_drop: false }`
[INFO] [stdout] ddd70885fbda3e8108694d08f6ac4fca5b0e65ccdef9a0673c5057953a6262d3