[INFO] fetching crate enum_to_u8_slice_derive 0.2.0...
[INFO] testing enum_to_u8_slice_derive-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate enum_to_u8_slice_derive 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate enum_to_u8_slice_derive 0.2.0 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 enum_to_u8_slice_derive 0.2.0
[INFO] finished tweaking crates.io crate enum_to_u8_slice_derive 0.2.0
[INFO] tweaked toml for crates.io crate enum_to_u8_slice_derive 0.2.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] fbf43ae195d3de2ec6f2bad9c6e1170c21ccb1b4ef71c5e0c7cafc51c2b09025
[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" "fbf43ae195d3de2ec6f2bad9c6e1170c21ccb1b4ef71c5e0c7cafc51c2b09025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbf43ae195d3de2ec6f2bad9c6e1170c21ccb1b4ef71c5e0c7cafc51c2b09025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf43ae195d3de2ec6f2bad9c6e1170c21ccb1b4ef71c5e0c7cafc51c2b09025", kill_on_drop: false }`
[INFO] [stdout] fbf43ae195d3de2ec6f2bad9c6e1170c21ccb1b4ef71c5e0c7cafc51c2b09025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 7caa49a3921fb0f49b28c5891492dd5cd8f44c166756b8bc7f703adcef023f73
[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" "7caa49a3921fb0f49b28c5891492dd5cd8f44c166756b8bc7f703adcef023f73", kill_on_drop: false }`
[INFO] [stderr]    Compiling enum_to_u8_slice_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "7caa49a3921fb0f49b28c5891492dd5cd8f44c166756b8bc7f703adcef023f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7caa49a3921fb0f49b28c5891492dd5cd8f44c166756b8bc7f703adcef023f73", kill_on_drop: false }`
[INFO] [stdout] 7caa49a3921fb0f49b28c5891492dd5cd8f44c166756b8bc7f703adcef023f73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 0226b35bbd5cfb1c978911fc361f0d5163939167e985e3f4a76c8ea0ee36c485
[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" "0226b35bbd5cfb1c978911fc361f0d5163939167e985e3f4a76c8ea0ee36c485", kill_on_drop: false }`
[INFO] [stderr]    Compiling enum_to_u8_slice_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "0226b35bbd5cfb1c978911fc361f0d5163939167e985e3f4a76c8ea0ee36c485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0226b35bbd5cfb1c978911fc361f0d5163939167e985e3f4a76c8ea0ee36c485", kill_on_drop: false }`
[INFO] [stdout] 0226b35bbd5cfb1c978911fc361f0d5163939167e985e3f4a76c8ea0ee36c485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f58e39d9e527fbbcd26023e89f5435ee3af08ace275579922fcf72c5a0887bdc
[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" "f58e39d9e527fbbcd26023e89f5435ee3af08ace275579922fcf72c5a0887bdc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/enum_to_u8_slice_derive-e8eceec913a6eba4
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests enum_to_u8_slice_derive
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f58e39d9e527fbbcd26023e89f5435ee3af08ace275579922fcf72c5a0887bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f58e39d9e527fbbcd26023e89f5435ee3af08ace275579922fcf72c5a0887bdc", kill_on_drop: false }`
[INFO] [stdout] f58e39d9e527fbbcd26023e89f5435ee3af08ace275579922fcf72c5a0887bdc