[INFO] crate spaces 4.1.0 is already in cache
[INFO] extracting crate spaces 4.1.0 into work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/spaces/4.1.0
[INFO] extracting crate spaces 4.1.0 into work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/spaces/4.1.0
[INFO] validating manifest of spaces-4.1.0 on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of spaces-4.1.0 on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing spaces-4.1.0
[INFO] finished frobbing spaces-4.1.0
[INFO] frobbed toml for spaces-4.1.0 written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/spaces/4.1.0/Cargo.toml
[INFO] started frobbing spaces-4.1.0
[INFO] finished frobbing spaces-4.1.0
[INFO] frobbed toml for spaces-4.1.0 written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/spaces/4.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking spaces-4.1.0 against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-0/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/spaces/4.1.0:/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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cbbdeedc99450eb24566da426624895f6ab5b312dca5e89de586a501c064ab44
[INFO] running `"docker" "start" "-a" "cbbdeedc99450eb24566da426624895f6ab5b312dca5e89de586a501c064ab44"`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking spaces v4.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/continuous/reals.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{BoundedSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/continuous/interval.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/binary.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, FiniteSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/ordinal.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, FiniteSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/naturals.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, Space, Card};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/integers.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, Space, Card};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/partition.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{BoundedSpace, FiniteSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/product/pair.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/product/named.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/product/linear.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{Space, Card, Surjection, Vector};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/core/space.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::Card;
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/continuous/reals.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{BoundedSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/continuous/interval.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/binary.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, FiniteSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/ordinal.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, FiniteSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/naturals.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, Space, Card};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/integers.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::{BoundedSpace, Space, Card};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/discrete/partition.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{BoundedSpace, FiniteSpace, Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/product/pair.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]   --> src/product/pair.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     use core::{Space, Card, Surjection};
[INFO] [stderr]    |         ^^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr]    = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]   --> src/macros.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         mod $module;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | import_all!(core);
[INFO] [stderr]    | ------------------ in this macro invocation
[INFO] [stderr]    = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/product/named.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{Space, Card, Surjection};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]    --> src/product/named.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |     use core::{Space, Card, Surjection};
[INFO] [stderr]     |         ^^^^ ambiguous name
[INFO] [stderr]     |
[INFO] [stderr]     = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]    --> src/macros.rs:12:9
[INFO] [stderr]     |
[INFO] [stderr] 12  |         mod $module;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:14:1
[INFO] [stderr]     |
[INFO] [stderr] 14  | import_all!(core);
[INFO] [stderr]     | ------------------ in this macro invocation
[INFO] [stderr]     = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/product/linear.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::{Space, Card, Surjection, Vector};
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]    --> src/product/linear.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |     use core::{Space, Card, Surjection};
[INFO] [stderr]     |         ^^^^ ambiguous name
[INFO] [stderr]     |
[INFO] [stderr]     = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]    --> src/macros.rs:12:9
[INFO] [stderr]     |
[INFO] [stderr] 12  |         mod $module;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:14:1
[INFO] [stderr]     |
[INFO] [stderr] 14  | import_all!(core);
[INFO] [stderr]     | ------------------ in this macro invocation
[INFO] [stderr]     = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `core` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
[INFO] [stderr]  --> src/core/space.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::Card;
[INFO] [stderr]   |     ^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` could refer to a built-in extern crate
[INFO] [stderr] note: `core` could also refer to the module defined here
[INFO] [stderr]  --> src/macros.rs:12:9
[INFO] [stderr]   |
[INFO] [stderr] 12|         mod $module;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   | 
[INFO] [stderr]  ::: src/lib.rs:14:1
[INFO] [stderr]   |
[INFO] [stderr] 14| import_all!(core);
[INFO] [stderr]   | ------------------ in this macro invocation
[INFO] [stderr]   = help: use `crate::core` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: Could not compile `spaces`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: Could not compile `spaces`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cbbdeedc99450eb24566da426624895f6ab5b312dca5e89de586a501c064ab44"`
[INFO] running `"docker" "rm" "-f" "cbbdeedc99450eb24566da426624895f6ab5b312dca5e89de586a501c064ab44"`
[INFO] [stdout] cbbdeedc99450eb24566da426624895f6ab5b312dca5e89de586a501c064ab44