[INFO] fetching crate ordnung 0.0.1...
[INFO] testing ordnung-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ordnung 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ordnung 0.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ordnung 0.0.1
[INFO] finished tweaking crates.io crate ordnung 0.0.1
[INFO] tweaked toml for crates.io crate ordnung 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9facdad56ff7db7d8a18f27177b6cc7a287b268c95589aca8d15fa49ea4e8cf6
[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" "9facdad56ff7db7d8a18f27177b6cc7a287b268c95589aca8d15fa49ea4e8cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9facdad56ff7db7d8a18f27177b6cc7a287b268c95589aca8d15fa49ea4e8cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9facdad56ff7db7d8a18f27177b6cc7a287b268c95589aca8d15fa49ea4e8cf6", kill_on_drop: false }`
[INFO] [stdout] 9facdad56ff7db7d8a18f27177b6cc7a287b268c95589aca8d15fa49ea4e8cf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15d1bd8713d4f11182aad0a3b64449e658957ebf7e6a712ec241de6fed2127de
[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" "15d1bd8713d4f11182aad0a3b64449e658957ebf7e6a712ec241de6fed2127de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling const-random v0.1.13
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling ordnung v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/compact.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         ManuallyDrop::new(core::mem::replace(self, Self::from_stdvec_unchecked(stdvec)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.98s
[INFO] running `Command { std: "docker" "inspect" "15d1bd8713d4f11182aad0a3b64449e658957ebf7e6a712ec241de6fed2127de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d1bd8713d4f11182aad0a3b64449e658957ebf7e6a712ec241de6fed2127de", kill_on_drop: false }`
[INFO] [stdout] 15d1bd8713d4f11182aad0a3b64449e658957ebf7e6a712ec241de6fed2127de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e14f6e799dc98e0b31b426e4f329529b6ef5a3a83ae86a91dc6e3077a599c24
[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" "6e14f6e799dc98e0b31b426e4f329529b6ef5a3a83ae86a91dc6e3077a599c24", kill_on_drop: false }`
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/compact.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         ManuallyDrop::new(core::mem::replace(self, Self::from_stdvec_unchecked(stdvec)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ordnung v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/compact.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         ManuallyDrop::new(core::mem::replace(self, Self::from_stdvec_unchecked(stdvec)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "6e14f6e799dc98e0b31b426e4f329529b6ef5a3a83ae86a91dc6e3077a599c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e14f6e799dc98e0b31b426e4f329529b6ef5a3a83ae86a91dc6e3077a599c24", kill_on_drop: false }`
[INFO] [stdout] 6e14f6e799dc98e0b31b426e4f329529b6ef5a3a83ae86a91dc6e3077a599c24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ffa4875618e335b4ec9a21b51c6f9218ffa1d6de14fdcb9ffc80a9970f79dc9a
[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" "ffa4875618e335b4ec9a21b51c6f9218ffa1d6de14fdcb9ffc80a9970f79dc9a", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stderr]    --> src/compact.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |         ManuallyDrop::new(core::mem::replace(self, Self::from_stdvec_unchecked(stdvec)));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stderr]    --> src/compact.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |         ManuallyDrop::new(core::mem::replace(self, Self::from_stdvec_unchecked(stdvec)));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ordnung-4103e0ef169da405
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests ordnung
[INFO] [stdout] test tests::simple ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/compact.rs - compact (line 4) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::contains_key (line 224) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::get (line 196) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::insert (line 157) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::get_mut (line 252) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::iter_mut (line 439) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::iter (line 407) ... ok
[INFO] [stdout] test src/lib.rs - Map<K, V>::remove (line 309) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ffa4875618e335b4ec9a21b51c6f9218ffa1d6de14fdcb9ffc80a9970f79dc9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa4875618e335b4ec9a21b51c6f9218ffa1d6de14fdcb9ffc80a9970f79dc9a", kill_on_drop: false }`
[INFO] [stdout] ffa4875618e335b4ec9a21b51c6f9218ffa1d6de14fdcb9ffc80a9970f79dc9a