[INFO] fetching crate shoulda_core 0.1.4...
[INFO] testing shoulda_core-0.1.4 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate shoulda_core 0.1.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate shoulda_core 0.1.4 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 shoulda_core 0.1.4
[INFO] finished tweaking crates.io crate shoulda_core 0.1.4
[INFO] tweaked toml for crates.io crate shoulda_core 0.1.4 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 6aa0c3406ecf9d715528ab68e3dc334f17deb1cacf13351cfd33d8963a39ece1
[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" "6aa0c3406ecf9d715528ab68e3dc334f17deb1cacf13351cfd33d8963a39ece1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aa0c3406ecf9d715528ab68e3dc334f17deb1cacf13351cfd33d8963a39ece1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa0c3406ecf9d715528ab68e3dc334f17deb1cacf13351cfd33d8963a39ece1", kill_on_drop: false }`
[INFO] [stdout] 6aa0c3406ecf9d715528ab68e3dc334f17deb1cacf13351cfd33d8963a39ece1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] bb3c07782d30f98f58724427482d5d09a1068bc20901dc9441f8de07f48d0a1f
[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" "bb3c07782d30f98f58724427482d5d09a1068bc20901dc9441f8de07f48d0a1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling shoulda_core v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "bb3c07782d30f98f58724427482d5d09a1068bc20901dc9441f8de07f48d0a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb3c07782d30f98f58724427482d5d09a1068bc20901dc9441f8de07f48d0a1f", kill_on_drop: false }`
[INFO] [stdout] bb3c07782d30f98f58724427482d5d09a1068bc20901dc9441f8de07f48d0a1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] c926baaf945e58c91fea6e6b192e114092fd238de543da6b3dbb886e48f3bf2d
[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" "c926baaf945e58c91fea6e6b192e114092fd238de543da6b3dbb886e48f3bf2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shoulda_core v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::specifics::panic::Expression`
[INFO] [stdout]  --> src/tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::specifics::panic::Expression;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "c926baaf945e58c91fea6e6b192e114092fd238de543da6b3dbb886e48f3bf2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c926baaf945e58c91fea6e6b192e114092fd238de543da6b3dbb886e48f3bf2d", kill_on_drop: false }`
[INFO] [stdout] c926baaf945e58c91fea6e6b192e114092fd238de543da6b3dbb886e48f3bf2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] f564ffb73563a8b41f8ee1e9365b011ab64beda6ee622aa0571fc765fbcd44d4
[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" "f564ffb73563a8b41f8ee1e9365b011ab64beda6ee622aa0571fc765fbcd44d4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stderr] warning: unused import: `crate::specifics::panic::Expression`
[INFO] [stderr]  --> src/tests.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::specifics::panic::Expression;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shoulda_core-cd26c0a396ada10b)
[INFO] [stdout] test specifics::iter::tests::should_contain ... ok
[INFO] [stdout] test specifics::iter::tests::should_contain_sequence ... ok
[INFO] [stdout] test specifics::iter::tests::should_not_contain_sequence ... ok
[INFO] [stdout] test specifics::iter::tests::should_not_contains ... ok
[INFO] [stdout] test specifics::iter::tests::should_not_contain ... ok
[INFO] [stdout] test tests::float_diff_changes ... ok
[INFO] [stdout] test tests::operation_order_dependent ... ok
[INFO] [stdout] test tests::or_operation ... ok
[INFO] [stdout] test tests::panic_catching ... ok
[INFO] [stdout] test tests::should_panic_on_fail ... ok
[INFO] [stdout] test tests::vec_cow_i32 ... ok
[INFO] [stdout] test tests::vec_cow_str ... ok
[INFO] [stdout] test tests::contains ... ok
[INFO] [stdout] test specifics::iter::tests::should_contains ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 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" "f564ffb73563a8b41f8ee1e9365b011ab64beda6ee622aa0571fc765fbcd44d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f564ffb73563a8b41f8ee1e9365b011ab64beda6ee622aa0571fc765fbcd44d4", kill_on_drop: false }`
[INFO] [stdout] f564ffb73563a8b41f8ee1e9365b011ab64beda6ee622aa0571fc765fbcd44d4