[INFO] fetching crate chalk-engine 0.9.0...
[INFO] extracting crate chalk-engine 0.9.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/chalk-engine/0.9.0
[INFO] extracting crate chalk-engine 0.9.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/chalk-engine/0.9.0
[INFO] validating manifest of chalk-engine-0.9.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chalk-engine-0.9.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chalk-engine-0.9.0
[INFO] finished frobbing chalk-engine-0.9.0
[INFO] frobbed toml for chalk-engine-0.9.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/chalk-engine/0.9.0/Cargo.toml
[INFO] started frobbing chalk-engine-0.9.0
[INFO] finished frobbing chalk-engine-0.9.0
[INFO] frobbed toml for chalk-engine-0.9.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/chalk-engine/0.9.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chalk-macros v0.1.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chalk-engine-0.9.0 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/chalk-engine/0.9.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 13e393c74bff8c8c2e31c5024522f3ba8e52d9fe692442a04e926dd4632adfac
[INFO] running `"docker" "start" "-a" "13e393c74bff8c8c2e31c5024522f3ba8e52d9fe692442a04e926dd4632adfac"`
[INFO] [stderr]    Compiling stacker v0.1.5
[INFO] [stderr]    Compiling chalk-macros v0.1.0
[INFO] [stderr]    Compiling chalk-engine v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stack.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / /// The StackIndex identifies the position of a table's goal in the
[INFO] [stderr] 12 | | /// stack of goals that are actively being processed. Note that once a
[INFO] [stderr] 13 | | /// table is completely evaluated, it may be popped from the stack,
[INFO] [stderr] 14 | | /// and hence no longer have a stack index.
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr] 15 | / index_struct! {
[INFO] [stderr] 16 | |     pub(crate) struct StackIndex {
[INFO] [stderr] 17 | |         value: usize,
[INFO] [stderr] 18 | |     }
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lib.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | / /// The StackIndex identifies the position of a table's goal in the
[INFO] [stderr] 88 | | /// stack of goals that are actively being processed. Note that once a
[INFO] [stderr] 89 | | /// table is completely evaluated, it may be popped from the stack,
[INFO] [stderr] 90 | | /// and hence no longer have a stack index.
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr] 91 | / index_struct! {
[INFO] [stderr] 92 | |     struct StackIndex {
[INFO] [stderr] 93 | |         value: usize,
[INFO] [stderr] 94 | |     }
[INFO] [stderr] 95 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/logic.rs:565:17
[INFO] [stderr]     |
[INFO] [stderr] 565 |             let mut delayed_literals: FxHashSet<_> = delayed_literals.into_iter()
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `non_modrs_mods` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:54:12
[INFO] [stderr]    |
[INFO] [stderr] 54 | #![feature(non_modrs_mods)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `"docker" "inspect" "13e393c74bff8c8c2e31c5024522f3ba8e52d9fe692442a04e926dd4632adfac"`
[INFO] running `"docker" "rm" "-f" "13e393c74bff8c8c2e31c5024522f3ba8e52d9fe692442a04e926dd4632adfac"`
[INFO] [stdout] 13e393c74bff8c8c2e31c5024522f3ba8e52d9fe692442a04e926dd4632adfac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/chalk-engine/0.9.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 707f1078d6a42df15a88593ca9ede5ebcb2693faf1aeef6f74a1bef62e858e01
[INFO] running `"docker" "start" "-a" "707f1078d6a42df15a88593ca9ede5ebcb2693faf1aeef6f74a1bef62e858e01"`
[INFO] [stderr]    Compiling chalk-engine v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stack.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / /// The StackIndex identifies the position of a table's goal in the
[INFO] [stderr] 12 | | /// stack of goals that are actively being processed. Note that once a
[INFO] [stderr] 13 | | /// table is completely evaluated, it may be popped from the stack,
[INFO] [stderr] 14 | | /// and hence no longer have a stack index.
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr] 15 | / index_struct! {
[INFO] [stderr] 16 | |     pub(crate) struct StackIndex {
[INFO] [stderr] 17 | |         value: usize,
[INFO] [stderr] 18 | |     }
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lib.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | / /// The StackIndex identifies the position of a table's goal in the
[INFO] [stderr] 88 | | /// stack of goals that are actively being processed. Note that once a
[INFO] [stderr] 89 | | /// table is completely evaluated, it may be popped from the stack,
[INFO] [stderr] 90 | | /// and hence no longer have a stack index.
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr] 91 | / index_struct! {
[INFO] [stderr] 92 | |     struct StackIndex {
[INFO] [stderr] 93 | |         value: usize,
[INFO] [stderr] 94 | |     }
[INFO] [stderr] 95 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/logic.rs:565:17
[INFO] [stderr]     |
[INFO] [stderr] 565 |             let mut delayed_literals: FxHashSet<_> = delayed_literals.into_iter()
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `non_modrs_mods` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:54:12
[INFO] [stderr]    |
[INFO] [stderr] 54 | #![feature(non_modrs_mods)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `"docker" "inspect" "707f1078d6a42df15a88593ca9ede5ebcb2693faf1aeef6f74a1bef62e858e01"`
[INFO] running `"docker" "rm" "-f" "707f1078d6a42df15a88593ca9ede5ebcb2693faf1aeef6f74a1bef62e858e01"`
[INFO] [stdout] 707f1078d6a42df15a88593ca9ede5ebcb2693faf1aeef6f74a1bef62e858e01
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/chalk-engine/0.9.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] bb966a931d4e345bcd09b655008f70cbe28eec10c457e5005e49657f6726c9b0
[INFO] running `"docker" "start" "-a" "bb966a931d4e345bcd09b655008f70cbe28eec10c457e5005e49657f6726c9b0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chalk_engine-86dbfd240de3ad38
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chalk-engine
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Minimums (line 208) ... ok
[INFO] [stdout] test src/forest.rs - forest::Forest<C, CO>::top_of_stack_is_coinductive_from (line 90) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bb966a931d4e345bcd09b655008f70cbe28eec10c457e5005e49657f6726c9b0"`
[INFO] running `"docker" "rm" "-f" "bb966a931d4e345bcd09b655008f70cbe28eec10c457e5005e49657f6726c9b0"`
[INFO] [stdout] bb966a931d4e345bcd09b655008f70cbe28eec10c457e5005e49657f6726c9b0