[INFO] fetching crate index-ext 0.0.2...
[INFO] testing index-ext-0.0.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate index-ext 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate index-ext 0.0.2 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 index-ext 0.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate index-ext 0.0.2
[INFO] tweaked toml for crates.io crate index-ext 0.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate index-ext 0.0.2 already has a lockfile, it will not be regenerated
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 10f635131f770c594b8e62b9ab7b19bbd0decd8c3183f31f06c07d9cb8ef9d82
[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" "10f635131f770c594b8e62b9ab7b19bbd0decd8c3183f31f06c07d9cb8ef9d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10f635131f770c594b8e62b9ab7b19bbd0decd8c3183f31f06c07d9cb8ef9d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f635131f770c594b8e62b9ab7b19bbd0decd8c3183f31f06c07d9cb8ef9d82", kill_on_drop: false }`
[INFO] [stdout] 10f635131f770c594b8e62b9ab7b19bbd0decd8c3183f31f06c07d9cb8ef9d82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4cd91e816ff74c429fb47be6175d5f158c6765c4ff86590a765382d4f55e1ee1
[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" "4cd91e816ff74c429fb47be6175d5f158c6765c4ff86590a765382d4f55e1ee1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling index-ext v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/tag.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         core::mem::ManuallyDrop::new(t);
[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 6.00s
[INFO] running `Command { std: "docker" "inspect" "4cd91e816ff74c429fb47be6175d5f158c6765c4ff86590a765382d4f55e1ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd91e816ff74c429fb47be6175d5f158c6765c4ff86590a765382d4f55e1ee1", kill_on_drop: false }`
[INFO] [stdout] 4cd91e816ff74c429fb47be6175d5f158c6765c4ff86590a765382d4f55e1ee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 75cd1bb0ae584a7a9778fb30dfc14bc69e67d2d72ebef0d5c539faf096272111
[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" "75cd1bb0ae584a7a9778fb30dfc14bc69e67d2d72ebef0d5c539faf096272111", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/tag.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         core::mem::ManuallyDrop::new(t);
[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 index-ext v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/tag.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         core::mem::ManuallyDrop::new(t);
[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 5.10s
[INFO] running `Command { std: "docker" "inspect" "75cd1bb0ae584a7a9778fb30dfc14bc69e67d2d72ebef0d5c539faf096272111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75cd1bb0ae584a7a9778fb30dfc14bc69e67d2d72ebef0d5c539faf096272111", kill_on_drop: false }`
[INFO] [stdout] 75cd1bb0ae584a7a9778fb30dfc14bc69e67d2d72ebef0d5c539faf096272111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e326339eab7ca78df5b7642f424092a46cbff26d8bb2bb59e3f5948a7008fda5
[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" "e326339eab7ca78df5b7642f424092a46cbff26d8bb2bb59e3f5948a7008fda5", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stderr]    --> src/tag.rs:474:9
[INFO] [stderr]     |
[INFO] [stderr] 474 |         core::mem::ManuallyDrop::new(t);
[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/tag.rs:474:9
[INFO] [stderr]     |
[INFO] [stderr] 474 |         core::mem::ManuallyDrop::new(t);
[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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/index_ext-16340ec107524b22
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test::unchecked ... ok
[INFO] [stdout] test tag::tests::basics ... ok
[INFO] [stdout] test test::index_with_all ... ok
[INFO] [stdout] test test::str_indices ... ok
[INFO] [stdout] test test::panics_with_length_u8 ... ok
[INFO] [stdout] test test::panics_with_length_u128 ... ok
[INFO] [stdout] test test::panics_with_length_i8 ... ok
[INFO] [stdout] test test::panics_with_length_u32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests index-ext
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - (line 28) ... ignored
[INFO] [stdout] test src/tag.rs - tag (line 845) ... ok
[INFO] [stdout] test src/tag.rs - tag (line 872) ... ok
[INFO] [stdout] test src/int.rs - int::Int (line 233) ... ok
[INFO] [stdout] test src/tag.rs - tag (line 27) ... ok
[INFO] [stdout] test src/lib.rs - Int::get_int_mut (line 131) ... ok
[INFO] [stdout] test src/int.rs - int::sealed (line 35) ... ok
[INFO] [stdout] test src/lib.rs - Int::get_int_unchecked (line 159) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - Int::get_int (line 109) ... ok
[INFO] [stdout] test src/lib.rs - Int::get_int_unchecked_mut (line 183) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e326339eab7ca78df5b7642f424092a46cbff26d8bb2bb59e3f5948a7008fda5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e326339eab7ca78df5b7642f424092a46cbff26d8bb2bb59e3f5948a7008fda5", kill_on_drop: false }`
[INFO] [stdout] e326339eab7ca78df5b7642f424092a46cbff26d8bb2bb59e3f5948a7008fda5