[INFO] fetching crate slots 0.3.1...
[INFO] testing slots-0.3.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate slots 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate slots 0.3.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slots 0.3.1
[INFO] finished tweaking crates.io crate slots 0.3.1
[INFO] tweaked toml for crates.io crate slots 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3949b063e538f251992e7014b36e42b4404e85cea56c604686d486b70b1c4e2
[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" "b3949b063e538f251992e7014b36e42b4404e85cea56c604686d486b70b1c4e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3949b063e538f251992e7014b36e42b4404e85cea56c604686d486b70b1c4e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3949b063e538f251992e7014b36e42b4404e85cea56c604686d486b70b1c4e2", kill_on_drop: false }`
[INFO] [stdout] b3949b063e538f251992e7014b36e42b4404e85cea56c604686d486b70b1c4e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca441a28506e25f7c65379f9e656c445945a568dba99856e26c251795b7bcfb4
[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" "ca441a28506e25f7c65379f9e656c445945a568dba99856e26c251795b7bcfb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling slots v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "ca441a28506e25f7c65379f9e656c445945a568dba99856e26c251795b7bcfb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca441a28506e25f7c65379f9e656c445945a568dba99856e26c251795b7bcfb4", kill_on_drop: false }`
[INFO] [stdout] ca441a28506e25f7c65379f9e656c445945a568dba99856e26c251795b7bcfb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6c462d2113a6eef4a2bddc5abd286f3fa91a52e34ff7d7c2248b561b645c744
[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" "b6c462d2113a6eef4a2bddc5abd286f3fa91a52e34ff7d7c2248b561b645c744", kill_on_drop: false }`
[INFO] [stderr]    Compiling slots v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "b6c462d2113a6eef4a2bddc5abd286f3fa91a52e34ff7d7c2248b561b645c744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c462d2113a6eef4a2bddc5abd286f3fa91a52e34ff7d7c2248b561b645c744", kill_on_drop: false }`
[INFO] [stdout] b6c462d2113a6eef4a2bddc5abd286f3fa91a52e34ff7d7c2248b561b645c744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cce75bf19df8c726a2eebdb9216b9ccc66cb8bb61ec5b325491ffb17648bc0c
[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" "4cce75bf19df8c726a2eebdb9216b9ccc66cb8bb61ec5b325491ffb17648bc0c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slots-e87e17f26d00ab18
[INFO] [stdout] test iterator::iter_test::sanity_check ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-da591a9a865e0a25
[INFO] [stdout] test iterator::iter_test::test_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test key_can_be_used_to_read_value ... ok
[INFO] [stdout] test size_can_be_1 ... ok
[INFO] [stdout] test store_returns_err_when_full ... ok
[INFO] [stdout] test cant_read_outside_bounds ... ok
[INFO] [stdout] test trying_to_read_missing_element_returns_none ... ok
[INFO] [stdout] test elements_can_be_modified_using_key ... ok
[INFO] [stdout] test capacity_and_count ... ok
[INFO] [stdout] test index_can_be_used_to_read_value ... ok
[INFO] [stdout] test trying_to_read_deleted_element_returns_none ... ok
[INFO] [stdout] test zero_sized_collection ... ok
[INFO] [stderr]    Doc-tests slots
[INFO] [stdout] test use_across_slots_verify ... ok
[INFO] [stdout] test is_compact ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/slots.rs - slots (line 62) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::is_full (line 276) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted (line 21) ... ok
[INFO] [stdout] test src/slots.rs - slots (line 16) ... ok
[INFO] [stdout] test src/slots.rs - slots (line 122) ... ok
[INFO] [stdout] test src/slots.rs - slots (line 43) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::try_read (line 340) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::iter (line 221) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::capacity (line 131) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::count (line 258) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::capacity (line 245) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::read (line 315) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::count (line 144) ... ok
[INFO] [stdout] test src/slots.rs - slots (line 79) ... ok
[INFO] [stdout] test src/slots.rs - slots::Slots<IT, N>::modify (line 367) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::iter (line 92) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::iter_mut (line 111) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::is_full (line 162) ... ok
[INFO] [stdout] test src/slots.rs - slots (line 105) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::modify (line 281) ... ok
[INFO] [stdout] test src/unrestricted.rs - unrestricted::UnrestrictedSlots<IT, N>::read (line 246) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.84s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4cce75bf19df8c726a2eebdb9216b9ccc66cb8bb61ec5b325491ffb17648bc0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cce75bf19df8c726a2eebdb9216b9ccc66cb8bb61ec5b325491ffb17648bc0c", kill_on_drop: false }`
[INFO] [stdout] 4cce75bf19df8c726a2eebdb9216b9ccc66cb8bb61ec5b325491ffb17648bc0c