[INFO] crate ast_node 0.2.0 is already in cache
[INFO] extracting crate ast_node 0.2.0 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/ast_node/0.2.0
[INFO] extracting crate ast_node 0.2.0 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/ast_node/0.2.0
[INFO] validating manifest of ast_node-0.2.0 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ast_node-0.2.0 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ast_node-0.2.0
[INFO] finished frobbing ast_node-0.2.0
[INFO] frobbed toml for ast_node-0.2.0 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/ast_node/0.2.0/Cargo.toml
[INFO] started frobbing ast_node-0.2.0
[INFO] finished frobbing ast_node-0.2.0
[INFO] frobbed toml for ast_node-0.2.0 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/ast_node/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ast_node-0.2.0 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/ast_node/0.2.0:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4734993d038394b8b2f89031b926761a157072340923c7e461f396a84da3c861
[INFO] running `"docker" "start" "-a" "4734993d038394b8b2f89031b926761a157072340923c7e461f396a84da3c861"`
[INFO] [stderr]     Checking rustc-ap-graphviz v297.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v297.0.0
[INFO] [stderr]    Compiling rustc-ap-syntax v297.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_cratesio_shim v297.0.0
[INFO] [stderr]     Checking rustc-ap-serialize v297.0.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking rustc-rayon v0.1.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v297.0.0
[INFO] [stderr]     Checking rustc-ap-arena v297.0.0
[INFO] [stderr]     Checking rustc-ap-syntax_pos v297.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v297.0.0
[INFO] [stderr]     Checking pmutil v0.2.0
[INFO] [stderr]     Checking darling_core v0.7.0
[INFO] [stderr] error[E0133]: initializing type with `rustc_layout_scalar_valid_range` attr is unsafe and requires unsafe function or block
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_target-297.0.0/abi/mod.rs:830:1
[INFO] [stderr]     |
[INFO] [stderr] 830 | / newtype_index! {
[INFO] [stderr] 831 | |     pub struct VariantIdx { .. }
[INFO] [stderr] 832 | | }
[INFO] [stderr]     | |_^ initializing type with `rustc_layout_scalar_valid_range` attr
[INFO] [stderr]     |
[INFO] [stderr]     = note: initializing a layout restricted type's field with a value outside the valid range is undefined behavior
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0133`.
[INFO] [stderr] error: Could not compile `rustc-ap-rustc_target`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4734993d038394b8b2f89031b926761a157072340923c7e461f396a84da3c861"`
[INFO] running `"docker" "rm" "-f" "4734993d038394b8b2f89031b926761a157072340923c7e461f396a84da3c861"`
[INFO] [stdout] 4734993d038394b8b2f89031b926761a157072340923c7e461f396a84da3c861