[INFO] crate sauron 0.10.0 is already in cache
[INFO] extracting crate sauron 0.10.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/sauron/0.10.0
[INFO] extracting crate sauron 0.10.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/sauron/0.10.0
[INFO] validating manifest of sauron-0.10.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sauron-0.10.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sauron-0.10.0
[INFO] finished frobbing sauron-0.10.0
[INFO] frobbed toml for sauron-0.10.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/sauron/0.10.0/Cargo.toml
[INFO] started frobbing sauron-0.10.0
[INFO] finished frobbing sauron-0.10.0
[INFO] frobbed toml for sauron-0.10.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/sauron/0.10.0/Cargo.toml
[INFO] crate sauron-0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sauron-0.10.0 against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/sauron/0.10.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e39a8dfdabb352363f10344f5926aa339af1d68de8b83601331860ea5e18ba8a
[INFO] running `"docker" "start" "-a" "e39a8dfdabb352363f10344f5926aa339af1d68de8b83601331860ea5e18ba8a"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.47
[INFO] [stderr]    Compiling bumpalo v2.4.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.47
[INFO] [stderr]    Compiling pulldown-cmark v0.5.2
[INFO] [stderr]     Checking sauron_vdom v0.10.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.47
[INFO] [stderr]    Compiling weedle v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.47
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.31
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.47
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.47
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.47
[INFO] [stderr]     Checking js-sys v0.3.24
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling web-sys v0.3.24
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.24
[INFO] [stderr]     Checking wasm-bindgen-test v0.2.47
[INFO] [stderr]     Checking sauron v0.10.0 (/opt/crater/workdir)
[INFO] [stderr] error: the feature `const_generics` is incomplete and may cause the compiler to crash
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/lib.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![deny(warnings)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(incomplete_features)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: the feature `const_generics` is incomplete and may cause the compiler to crash
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> src/lib.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![deny(warnings)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   = note: `#[deny(incomplete_features)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `sauron`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `sauron`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e39a8dfdabb352363f10344f5926aa339af1d68de8b83601331860ea5e18ba8a"`
[INFO] running `"docker" "rm" "-f" "e39a8dfdabb352363f10344f5926aa339af1d68de8b83601331860ea5e18ba8a"`
[INFO] [stdout] e39a8dfdabb352363f10344f5926aa339af1d68de8b83601331860ea5e18ba8a