[INFO] crate overflower 0.4.6 is already in cache
[INFO] extracting crate overflower 0.4.6 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/overflower/0.4.6
[INFO] extracting crate overflower 0.4.6 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/overflower/0.4.6
[INFO] validating manifest of overflower-0.4.6 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 overflower-0.4.6 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 overflower-0.4.6
[INFO] finished frobbing overflower-0.4.6
[INFO] frobbed toml for overflower-0.4.6 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/overflower/0.4.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 overflower-0.4.6 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4a29d935cf3a8a24cc7afe35eabffff58254f3c7a814b1c0920510a0c0dc9b46
[INFO] running `"docker" "start" "-a" "4a29d935cf3a8a24cc7afe35eabffff58254f3c7a814b1c0920510a0c0dc9b46"`
[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" "4a29d935cf3a8a24cc7afe35eabffff58254f3c7a814b1c0920510a0c0dc9b46"`
[INFO] running `"docker" "rm" "-f" "4a29d935cf3a8a24cc7afe35eabffff58254f3c7a814b1c0920510a0c0dc9b46"`
[INFO] [stdout] 4a29d935cf3a8a24cc7afe35eabffff58254f3c7a814b1c0920510a0c0dc9b46