[INFO] fetching crate quartet 0.2.0...
[INFO] testing quartet-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate quartet 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate quartet 0.2.0 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 quartet 0.2.0
[INFO] finished tweaking crates.io crate quartet 0.2.0
[INFO] tweaked toml for crates.io crate quartet 0.2.0 written to /workspace/builds/worker-10/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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 41b30b7db0eaf840919e16e54837826fb87cb8c09fbdeaad57c1cb8e8ccc4ae0
[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" "41b30b7db0eaf840919e16e54837826fb87cb8c09fbdeaad57c1cb8e8ccc4ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41b30b7db0eaf840919e16e54837826fb87cb8c09fbdeaad57c1cb8e8ccc4ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b30b7db0eaf840919e16e54837826fb87cb8c09fbdeaad57c1cb8e8ccc4ae0", kill_on_drop: false }`
[INFO] [stdout] 41b30b7db0eaf840919e16e54837826fb87cb8c09fbdeaad57c1cb8e8ccc4ae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b870902d45382f6e9ec0f6223af9718a5c8f8d8d3167ce0303399c78f110208c
[INFO] running `Command { std: "docker" "start" "-a" "b870902d45382f6e9ec0f6223af9718a5c8f8d8d3167ce0303399c78f110208c", kill_on_drop: false }`
[INFO] [stderr]    Compiling quartet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "b870902d45382f6e9ec0f6223af9718a5c8f8d8d3167ce0303399c78f110208c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b870902d45382f6e9ec0f6223af9718a5c8f8d8d3167ce0303399c78f110208c", kill_on_drop: false }`
[INFO] [stdout] b870902d45382f6e9ec0f6223af9718a5c8f8d8d3167ce0303399c78f110208c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 399f7d1a37fa92a4c7d8819420f77e03a3bf5e88ebe86aeabedd5a19d7db0c1e
[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" "399f7d1a37fa92a4c7d8819420f77e03a3bf5e88ebe86aeabedd5a19d7db0c1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling quartet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "399f7d1a37fa92a4c7d8819420f77e03a3bf5e88ebe86aeabedd5a19d7db0c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399f7d1a37fa92a4c7d8819420f77e03a3bf5e88ebe86aeabedd5a19d7db0c1e", kill_on_drop: false }`
[INFO] [stdout] 399f7d1a37fa92a4c7d8819420f77e03a3bf5e88ebe86aeabedd5a19d7db0c1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] ccaffa6d610e71152ad435798ed4c423e0256b664a200905c48873a0204a670f
[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" "ccaffa6d610e71152ad435798ed4c423e0256b664a200905c48873a0204a670f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quartet-865c6aae7b3e4de2
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_nibslice::get_range_oob_exclude_both ... ok
[INFO] [stdout] test test_nibslice::iter ... ok
[INFO] [stdout] test test_nibslice::index_to_1 ... ok
[INFO] [stdout] test test_nibslice::index_range ... ok
[INFO] [stdout] test test_nibslice::index_2 ... ok
[INFO] [stdout] test test_nibslice::index_single ... ok
[INFO] [stdout] test test_nibslice::index_middle ... ok
[INFO] [stdout] test test_nibslice::index_3 ... ok
[INFO] [stdout] test test_nibslice::build_ok ... ok
[INFO] [stdout] test test_nibslice::index_range_bad ... ok
[INFO] [stdout] test test_nibslice::index_oob ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests quartet
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - NibSlice::try_nibble (line 116) ... ok
[INFO] [stdout] test src/lib.rs - NibSlice::nibble (line 96) ... ok
[INFO] [stdout] test src/lib.rs - doctest (line 574) ... ok
[INFO] [stdout] test src/lib.rs - NibSlice::index (line 74) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ccaffa6d610e71152ad435798ed4c423e0256b664a200905c48873a0204a670f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccaffa6d610e71152ad435798ed4c423e0256b664a200905c48873a0204a670f", kill_on_drop: false }`
[INFO] [stdout] ccaffa6d610e71152ad435798ed4c423e0256b664a200905c48873a0204a670f