[INFO] crate overflower 0.4.6 is already in cache
[INFO] extracting crate overflower 0.4.6 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/overflower/0.4.6
[INFO] extracting crate overflower 0.4.6 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/overflower/0.4.6
[INFO] validating manifest of overflower-0.4.6 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of overflower-0.4.6 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing overflower-0.4.6
[INFO] finished frobbing overflower-0.4.6
[INFO] frobbed toml for overflower-0.4.6 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/overflower/0.4.6/Cargo.toml
[INFO] started frobbing overflower-0.4.6
[INFO] finished frobbing overflower-0.4.6
[INFO] frobbed toml for overflower-0.4.6 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/overflower/0.4.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking overflower-0.4.6 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/overflower/0.4.6:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ae0eece53e64c7f49c47c6d8dbb71929fc3130f178881728fe578452df03569d
[INFO] running `"docker" "start" "-a" "ae0eece53e64c7f49c47c6d8dbb71929fc3130f178881728fe578452df03569d"`
[INFO] [stderr]    Compiling overflower_support v0.1.5
[INFO] [stderr]     Checking overflower v0.4.6 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `syntax::ast::NestedMetaItemKind`
[INFO] [stderr]   --> src/lib.rs:13:57
[INFO] [stderr]    |
[INFO] [stderr] 13 |                   LitKind, Mac, MetaItem, MetaItemKind, NestedMetaItemKind,
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                                         |
[INFO] [stderr]    |                                                         no `NestedMetaItemKind` in `ast`
[INFO] [stderr]    |                                                         help: a similar name exists in the module: `NestedMetaItem`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `syntax::fold`, `syntax::fold`
[INFO] [stderr]   --> src/lib.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 | use syntax::fold::{self, Folder};
[INFO] [stderr]    |             ^^^^   ^^^^ no `fold` in the root
[INFO] [stderr]    |             |
[INFO] [stderr]    |             could not find `fold` in `syntax`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `syntax::ext::build::AstBuilder`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use syntax::ext::build::AstBuilder;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `overflower`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `syntax::ast::NestedMetaItemKind`
[INFO] [stderr]   --> src/lib.rs:13:57
[INFO] [stderr]    |
[INFO] [stderr] 13 |                   LitKind, Mac, MetaItem, MetaItemKind, NestedMetaItemKind,
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                                         |
[INFO] [stderr]    |                                                         no `NestedMetaItemKind` in `ast`
[INFO] [stderr]    |                                                         help: a similar name exists in the module: `NestedMetaItem`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `syntax::fold`, `syntax::fold`
[INFO] [stderr]   --> src/lib.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 | use syntax::fold::{self, Folder};
[INFO] [stderr]    |             ^^^^   ^^^^ no `fold` in the root
[INFO] [stderr]    |             |
[INFO] [stderr]    |             could not find `fold` in `syntax`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `syntax::ext::build::AstBuilder`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use syntax::ext::build::AstBuilder;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `overflower`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ae0eece53e64c7f49c47c6d8dbb71929fc3130f178881728fe578452df03569d"`
[INFO] running `"docker" "rm" "-f" "ae0eece53e64c7f49c47c6d8dbb71929fc3130f178881728fe578452df03569d"`
[INFO] [stdout] ae0eece53e64c7f49c47c6d8dbb71929fc3130f178881728fe578452df03569d