[INFO] updating cached repository ThatsGobbles/taggu-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ThatsGobbles/taggu-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ThatsGobbles/taggu-rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ThatsGobbles/taggu-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ThatsGobbles/taggu-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ThatsGobbles/taggu-rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ThatsGobbles/taggu-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ThatsGobbles/taggu-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5a400888540da38362bbec2a1a450916aea5024d [INFO] sha for GitHub repo ThatsGobbles/taggu-rust: 5a400888540da38362bbec2a1a450916aea5024d [INFO] validating manifest of ThatsGobbles/taggu-rust on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ThatsGobbles/taggu-rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ThatsGobbles/taggu-rust [INFO] finished frobbing ThatsGobbles/taggu-rust [INFO] frobbed toml for ThatsGobbles/taggu-rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ThatsGobbles/taggu-rust/Cargo.toml [INFO] started frobbing ThatsGobbles/taggu-rust [INFO] finished frobbing ThatsGobbles/taggu-rust [INFO] frobbed toml for ThatsGobbles/taggu-rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ThatsGobbles/taggu-rust/Cargo.toml [INFO] crate ThatsGobbles/taggu-rust has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing ThatsGobbles/taggu-rust against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ThatsGobbles/taggu-rust:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"` [INFO] [stdout] 0782f1968ac979eed24d3eaabd394cf8f96ce37e3657136bf8c788111de3a8c2 [INFO] running `"docker" "start" "-a" "0782f1968ac979eed24d3eaabd394cf8f96ce37e3657136bf8c788111de3a8c2"` [INFO] [stderr] Compiling maplit v1.0.0 [INFO] [stderr] Compiling tempdir v0.3.5 [INFO] [stderr] Compiling env_logger v0.4.3 [INFO] [stderr] Compiling error-chain v0.12.0 [INFO] [stderr] Compiling taggu v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Metadata` [INFO] [stderr] --> src/metadata/reader/mod.rs:7:16 [INFO] [stderr] | [INFO] [stderr] 7 | use metadata::{Metadata, MetaTarget, PathMetaListing}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] error[E0720]: opaque type expands to a recursive type [INFO] [stderr] --> src/metadata/mod.rs:149:63 [INFO] [stderr] | [INFO] [stderr] 149 | pub fn iter_over<'a>(&'a self, mis: MappingIterScheme) -> impl Iterator { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expands to self-referential type [INFO] [stderr] | [INFO] [stderr] = note: expanded type is `generator::GenConverter::gen_to_iter::It<[generator@src/metadata/mod.rs:150:23: 184:10 self:&'a metadata::MetaValue, mis:metadata::MappingIterScheme for<'r, 's, 't0, 't1, 't2, 't3, 't4, 't5, 't6, 't7, 't8, 't9, 't10, 't11, 't12, 't13, 't14, 't15, 't16, 't17, 't18, 't19, 't20, 't21, 't22, 't23, 't24, 't25, 't26, 't27, 't28, 't29, 't30, 't31, 't32, 't33, 't34, 't35> {&'r metadata::MetaValue, metadata::MetaValue, &'s std::string::String, (), &'t0 std::vec::Vec, fn(&'t1 std::vec::Vec) -> <&'t1 std::vec::Vec as std::iter::IntoIterator>::IntoIter {<&'t1 std::vec::Vec as std::iter::IntoIterator>::into_iter}, std::slice::Iter<'t2, metadata::MetaValue>, std::slice::Iter<'t3, metadata::MetaValue>, &'t4 metadata::MetaValue, &'t5 metadata::MetaValue, fn(std::boxed::Box) -> as std::iter::IntoIterator>::IntoIter { as std::iter::IntoIterator>::into_iter}, fn(impl std::iter::Iterator) -> std::boxed::Box {std::boxed::Box::::new}, &'t8 metadata::MetaValue, metadata::MappingIterScheme, impl std::iter::Iterator, std::boxed::Box, &'t11 std::string::String, &'t12 std::string::String, std::string::String, &'t13 std::string::String, &'t14 std::collections::BTreeMap, fn(&'t15 std::collections::BTreeMap) -> <&'t15 std::collections::BTreeMap as std::iter::IntoIterator>::IntoIter {<&'t15 std::collections::BTreeMap as std::iter::IntoIterator>::into_iter}, std::collections::btree_map::Iter<'t16, metadata::MetaKey, metadata::MetaValue>, std::collections::btree_map::Iter<'t17, metadata::MetaKey, metadata::MetaValue>, (&'t18 metadata::MetaKey, &'t19 metadata::MetaValue), &'t20 metadata::MetaKey, &'t21 metadata::MetaValue, fn(std::boxed::Box) -> as std::iter::IntoIterator>::IntoIter { as std::iter::IntoIterator>::into_iter}, fn(impl std::iter::Iterator) -> std::boxed::Box {std::boxed::Box::::new}, metadata::MetaKey, &'t24 metadata::MetaKey, impl std::iter::Iterator, std::boxed::Box, &'t27 std::string::String, &'t28 std::string::String, fn(std::boxed::Box) -> as std::iter::IntoIterator>::IntoIter { as std::iter::IntoIterator>::into_iter}, fn(impl std::iter::Iterator) -> std::boxed::Box {std::boxed::Box::::new}, &'t31 metadata::MetaValue, impl std::iter::Iterator, std::boxed::Box, &'t34 std::string::String, &'t35 std::string::String}]>` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0720`. [INFO] [stderr] error: Could not compile `taggu`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "0782f1968ac979eed24d3eaabd394cf8f96ce37e3657136bf8c788111de3a8c2"` [INFO] running `"docker" "rm" "-f" "0782f1968ac979eed24d3eaabd394cf8f96ce37e3657136bf8c788111de3a8c2"` [INFO] [stdout] 0782f1968ac979eed24d3eaabd394cf8f96ce37e3657136bf8c788111de3a8c2