[INFO] fetching crate shoulda_core 0.1.12...
[INFO] testing shoulda_core-0.1.12 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate shoulda_core 0.1.12 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate shoulda_core 0.1.12 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shoulda_core 0.1.12
[INFO] finished tweaking crates.io crate shoulda_core 0.1.12
[INFO] tweaked toml for crates.io crate shoulda_core 0.1.12 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.2.1
[INFO] [stderr]   Downloaded const_env_impl v0.1.2
[INFO] [stderr]   Downloaded const_env v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c11885f37d13aaa3bb62dead9e5f152502b518d61af4bf7776ee1a3d6a6fdbc
[INFO] running `Command { std: "docker" "start" "-a" "0c11885f37d13aaa3bb62dead9e5f152502b518d61af4bf7776ee1a3d6a6fdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c11885f37d13aaa3bb62dead9e5f152502b518d61af4bf7776ee1a3d6a6fdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c11885f37d13aaa3bb62dead9e5f152502b518d61af4bf7776ee1a3d6a6fdbc", kill_on_drop: false }`
[INFO] [stdout] 0c11885f37d13aaa3bb62dead9e5f152502b518d61af4bf7776ee1a3d6a6fdbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dc5414a785b99ecca665c709b7cd793734a2bc24d2b3b93b72fc2140dc7e1de5
[INFO] running `Command { std: "docker" "start" "-a" "dc5414a785b99ecca665c709b7cd793734a2bc24d2b3b93b72fc2140dc7e1de5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling const_env_impl v0.1.2
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling const_env v0.1.2
[INFO] [stderr]    Compiling shoulda_core v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.66s
[INFO] running `Command { std: "docker" "inspect" "dc5414a785b99ecca665c709b7cd793734a2bc24d2b3b93b72fc2140dc7e1de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5414a785b99ecca665c709b7cd793734a2bc24d2b3b93b72fc2140dc7e1de5", kill_on_drop: false }`
[INFO] [stdout] dc5414a785b99ecca665c709b7cd793734a2bc24d2b3b93b72fc2140dc7e1de5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7404d7a8fa41632d42839f653be627dfafe826e40c9379996bd2d3d4d2ac5632
[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" "7404d7a8fa41632d42839f653be627dfafe826e40c9379996bd2d3d4d2ac5632", kill_on_drop: false }`
[INFO] [stderr]    Compiling shoulda_core v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "7404d7a8fa41632d42839f653be627dfafe826e40c9379996bd2d3d4d2ac5632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7404d7a8fa41632d42839f653be627dfafe826e40c9379996bd2d3d4d2ac5632", kill_on_drop: false }`
[INFO] [stdout] 7404d7a8fa41632d42839f653be627dfafe826e40c9379996bd2d3d4d2ac5632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84f11aea2b4ac22a0a4ad9ffc9866a2ce711305e233216e3f6f3292d7696c6c7
[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" "84f11aea2b4ac22a0a4ad9ffc9866a2ce711305e233216e3f6f3292d7696c6c7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shoulda_core-3808e919dcf24642)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::contains ... ok
[INFO] [stdout] test specifics::iter::tests::should_not_contain_sequence ... ok
[INFO] [stdout] test tests::should_panic_on_fail ... ok
[INFO] [stdout] test specifics::iter::tests::should_contains ... ok
[INFO] [stdout] test tests::tuples ... ok
[INFO] [stdout] test specifics::iter::tests::should_contain_sequence ... ok
[INFO] [stdout] test specifics::iter::tests::should_not_contain ... ok
[INFO] [stdout] test tests::vec_cow_i32 ... ok
[INFO] [stdout] test tests::vec_cow_str ... ok
[INFO] [stdout] test specifics::iter::tests::should_contain ... ok
[INFO] [stdout] test tests::float_diff_changes ... ok
[INFO] [stdout] test specifics::iter::tests::should_not_contains ... ok
[INFO] [stdout] test tests::operation_order_dependent ... ok
[INFO] [stdout] test tests::of_type ... ok
[INFO] [stdout] test tests::or_operation ... ok
[INFO] [stdout] test tests::panic_catching ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shoulda_core
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "84f11aea2b4ac22a0a4ad9ffc9866a2ce711305e233216e3f6f3292d7696c6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f11aea2b4ac22a0a4ad9ffc9866a2ce711305e233216e3f6f3292d7696c6c7", kill_on_drop: false }`
[INFO] [stdout] 84f11aea2b4ac22a0a4ad9ffc9866a2ce711305e233216e3f6f3292d7696c6c7