[INFO] fetching crate ref-cast-impl 1.0.6...
[INFO] testing ref-cast-impl-1.0.6 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate ref-cast-impl 1.0.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ref-cast-impl 1.0.6 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 ref-cast-impl 1.0.6
[INFO] finished tweaking crates.io crate ref-cast-impl 1.0.6
[INFO] tweaked toml for crates.io crate ref-cast-impl 1.0.6 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] 0494cf25fb030db136abdd06da4359ebc3ccc99bf3fe02e40a45097cd047b3b7
[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" "0494cf25fb030db136abdd06da4359ebc3ccc99bf3fe02e40a45097cd047b3b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0494cf25fb030db136abdd06da4359ebc3ccc99bf3fe02e40a45097cd047b3b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0494cf25fb030db136abdd06da4359ebc3ccc99bf3fe02e40a45097cd047b3b7", kill_on_drop: false }`
[INFO] [stdout] 0494cf25fb030db136abdd06da4359ebc3ccc99bf3fe02e40a45097cd047b3b7
[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] [stdout] eada23ec3d10489befc1cd03dae1972a18d48657d5673d94ae8dc50ba334ed4a
[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" "eada23ec3d10489befc1cd03dae1972a18d48657d5673d94ae8dc50ba334ed4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "eada23ec3d10489befc1cd03dae1972a18d48657d5673d94ae8dc50ba334ed4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eada23ec3d10489befc1cd03dae1972a18d48657d5673d94ae8dc50ba334ed4a", kill_on_drop: false }`
[INFO] [stdout] eada23ec3d10489befc1cd03dae1972a18d48657d5673d94ae8dc50ba334ed4a
[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] b4142090fd3925dd7a01f61bcd8c7cb8a258a8c3b47c45c1eb2aef9421cdebe9
[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" "b4142090fd3925dd7a01f61bcd8c7cb8a258a8c3b47c45c1eb2aef9421cdebe9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "b4142090fd3925dd7a01f61bcd8c7cb8a258a8c3b47c45c1eb2aef9421cdebe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4142090fd3925dd7a01f61bcd8c7cb8a258a8c3b47c45c1eb2aef9421cdebe9", kill_on_drop: false }`
[INFO] [stdout] b4142090fd3925dd7a01f61bcd8c7cb8a258a8c3b47c45c1eb2aef9421cdebe9
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e00da65aab34ef6415134527740cd04fe6c67589fc6bd9dc3fd0c7aca8b38f23
[INFO] running `Command { std: "docker" "start" "-a" "e00da65aab34ef6415134527740cd04fe6c67589fc6bd9dc3fd0c7aca8b38f23", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ref_cast_impl-75553606d377787e
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ref-cast-impl
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e00da65aab34ef6415134527740cd04fe6c67589fc6bd9dc3fd0c7aca8b38f23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e00da65aab34ef6415134527740cd04fe6c67589fc6bd9dc3fd0c7aca8b38f23", kill_on_drop: false }`
[INFO] [stdout] e00da65aab34ef6415134527740cd04fe6c67589fc6bd9dc3fd0c7aca8b38f23