[INFO] fetching crate joinery 2.0.0...
[INFO] testing joinery-2.0.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate joinery 2.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate joinery 2.0.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate joinery 2.0.0
[INFO] finished tweaking crates.io crate joinery 2.0.0
[INFO] tweaked toml for crates.io crate joinery 2.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfc6f6d96c88a5e61ee3766cac1694a7e4d7ba518f7201b109e45022850cb8e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bfc6f6d96c88a5e61ee3766cac1694a7e4d7ba518f7201b109e45022850cb8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfc6f6d96c88a5e61ee3766cac1694a7e4d7ba518f7201b109e45022850cb8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc6f6d96c88a5e61ee3766cac1694a7e4d7ba518f7201b109e45022850cb8e3", kill_on_drop: false }`
[INFO] [stdout] bfc6f6d96c88a5e61ee3766cac1694a7e4d7ba518f7201b109e45022850cb8e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39af36104ff3b7dce02332faf059769ad924c8c08341aaab6ef94f794b221e3f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "39af36104ff3b7dce02332faf059769ad924c8c08341aaab6ef94f794b221e3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling joinery v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "39af36104ff3b7dce02332faf059769ad924c8c08341aaab6ef94f794b221e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39af36104ff3b7dce02332faf059769ad924c8c08341aaab6ef94f794b221e3f", kill_on_drop: false }`
[INFO] [stdout] 39af36104ff3b7dce02332faf059769ad924c8c08341aaab6ef94f794b221e3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80426cd027bd942e76269d604e01d840aab822a1fd8d8270c86311602049cd64
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "80426cd027bd942e76269d604e01d840aab822a1fd8d8270c86311602049cd64", kill_on_drop: false }`
[INFO] [stderr]    Compiling joinery v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "80426cd027bd942e76269d604e01d840aab822a1fd8d8270c86311602049cd64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80426cd027bd942e76269d604e01d840aab822a1fd8d8270c86311602049cd64", kill_on_drop: false }`
[INFO] [stdout] 80426cd027bd942e76269d604e01d840aab822a1fd8d8270c86311602049cd64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 029f5af75ed025119b98abe7828110985816cb76a4fbf74b0f082d3be9fd9409
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "029f5af75ed025119b98abe7828110985816cb76a4fbf74b0f082d3be9fd9409", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 26 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/joinery-4b4cffa2600f932a)
[INFO] [stdout] test iter::tests::empty_iter ... ok
[INFO] [stdout] test iter::tests::large_size_hint ... ok
[INFO] [stdout] test iter::tests::partial_iteration ... ok
[INFO] [stdout] test iter::tests::regular_size_hint ... ok
[INFO] [stdout] test join::tests::empty ... ok
[INFO] [stdout] test iter::tests::single ... ok
[INFO] [stdout] test join::tests::join_via_separator ... ok
[INFO] [stdout] test iter::tests::threshold_size_hint ... ok
[INFO] [stdout] test iter::tests::try_fold ... ok
[INFO] [stdout] test join::tests::simple_join ... ok
[INFO] [stdout] test join::tests::iter ... ok
[INFO] [stdout] test join::tests::single ... ok
[INFO] [stdout] test join::tests::ref_iter ... ok
[INFO] [stdout] test separators::test_comma ... ok
[INFO] [stdout] test separators::test_dot ... ok
[INFO] [stdout] test separators::test_no_separator ... ok
[INFO] [stdout] test separators::test_slash ... ok
[INFO] [stdout] test separators::test_space ... ok
[INFO] [stdout] test separators::test_underscore ... ok
[INFO] [stdout] test iter::tests::partial_fold ... ok
[INFO] [stdout] test iter::tests::fold ... ok
[INFO] [stdout] test iter::tests::partial_try_fold ... ok
[INFO] [stdout] test iter::tests::few ... ok
[INFO] [stdout] test separators::test_comma_space ... ok
[INFO] [stderr]    Doc-tests joinery
[INFO] [stdout] test separators::test_dash ... ok
[INFO] [stdout] test separators::test_tab ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/join.rs - join::Join (line 126) ... FAILED
[INFO] [stdout] test src/iter.rs - iter::JoinIter<I, S>::is_sep_next (line 247) ... ok
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinableIterator::join_concat (line 83) ... ok
[INFO] [stdout] test src/join.rs - join::Join (line 108) ... ok
[INFO] [stdout] test src/join.rs - join::Joinable::join_with (line 21) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinableIterator::join_with (line 64) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinIter<I, S>::peek (line 275) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinIter<I, S>::peek_element (line 305) ... ok
[INFO] [stdout] test src/join.rs - join::Separator (line 69) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinableIterator::iter_join_with (line 102) ... ok
[INFO] [stdout] test src/separators.rs - separators::NoSeparator (line 23) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinIter (line 207) ... ok
[INFO] [stdout] test src/lib.rs - (line 43) ... ok
[INFO] [stdout] test src/iter.rs - iter::JoinIter (line 191) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/join.rs - join::Joinable::join_concat (line 37) ... ok
[INFO] [stdout] test src/lib.rs - (line 74) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/join.rs - join::Join (line 126) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/join.rs:133:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert_eq!(join_iter.next(), Some(JoinItem::Element(&0)));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected integer, found `&{integer}`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<JoinItem<{integer}, &str>>`
[INFO] [stdout]               found enum `Option<JoinItem<&{integer}, _>>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/join.rs:134:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert_eq!(join_iter.next(), Some(JoinItem::Separator(&", ")));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `str`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<JoinItem<{integer}, &str>>`
[INFO] [stdout]               found enum `Option<JoinItem<_, &&str>>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/join.rs:135:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | assert_eq!(join_iter.next(), Some(JoinItem::Element(&1)));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected integer, found `&{integer}`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<JoinItem<{integer}, &str>>`
[INFO] [stdout]               found enum `Option<JoinItem<&{integer}, _>>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/join.rs:136:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | assert_eq!(join_iter.next(), Some(JoinItem::Separator(&", ")));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `str`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<JoinItem<{integer}, &str>>`
[INFO] [stdout]               found enum `Option<JoinItem<_, &&str>>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/join.rs:137:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | assert_eq!(join_iter.next(), Some(JoinItem::Element(&2)));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected integer, found `&{integer}`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<JoinItem<{integer}, &str>>`
[INFO] [stdout]               found enum `Option<JoinItem<&{integer}, _>>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/join.rs - join::Join (line 126)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 18 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "029f5af75ed025119b98abe7828110985816cb76a4fbf74b0f082d3be9fd9409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "029f5af75ed025119b98abe7828110985816cb76a4fbf74b0f082d3be9fd9409", kill_on_drop: false }`
[INFO] [stdout] 029f5af75ed025119b98abe7828110985816cb76a4fbf74b0f082d3be9fd9409