[INFO] crate ref-cast-impl 1.0.2 is already in cache
[INFO] testing ref-cast-impl-1.0.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate ref-cast-impl 1.0.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ref-cast-impl 1.0.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ref-cast-impl 1.0.2
[INFO] finished tweaking crates.io crate ref-cast-impl 1.0.2
[INFO] tweaked toml for crates.io crate ref-cast-impl 1.0.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab04b14ec4910e37274aa52b8c8d44e766dd932b53643ece2777f8f132274673
[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" "ab04b14ec4910e37274aa52b8c8d44e766dd932b53643ece2777f8f132274673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab04b14ec4910e37274aa52b8c8d44e766dd932b53643ece2777f8f132274673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab04b14ec4910e37274aa52b8c8d44e766dd932b53643ece2777f8f132274673", kill_on_drop: false }`
[INFO] [stdout] ab04b14ec4910e37274aa52b8c8d44e766dd932b53643ece2777f8f132274673
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18a4c533af411739ea393404f04e4ae2f16ae7c1627bad6faa2e8e284a3fd94f
[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" "18a4c533af411739ea393404f04e4ae2f16ae7c1627bad6faa2e8e284a3fd94f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast-impl v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "18a4c533af411739ea393404f04e4ae2f16ae7c1627bad6faa2e8e284a3fd94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a4c533af411739ea393404f04e4ae2f16ae7c1627bad6faa2e8e284a3fd94f", kill_on_drop: false }`
[INFO] [stdout] 18a4c533af411739ea393404f04e4ae2f16ae7c1627bad6faa2e8e284a3fd94f
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--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] f69dc05d08bf798e4b5da49fedfe6bdc0532cef466b674edcd25b3c4b3344e34
[INFO] running `Command { std: "docker" "start" "-a" "f69dc05d08bf798e4b5da49fedfe6bdc0532cef466b674edcd25b3c4b3344e34", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast-impl v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "f69dc05d08bf798e4b5da49fedfe6bdc0532cef466b674edcd25b3c4b3344e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69dc05d08bf798e4b5da49fedfe6bdc0532cef466b674edcd25b3c4b3344e34", kill_on_drop: false }`
[INFO] [stdout] f69dc05d08bf798e4b5da49fedfe6bdc0532cef466b674edcd25b3c4b3344e34
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cae0f044c18adb0afb14a6ebbc3b2b7ccaab64380475b4ab0f553248ad4e1cf7
[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" "cae0f044c18adb0afb14a6ebbc3b2b7ccaab64380475b4ab0f553248ad4e1cf7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ref_cast_impl-11a8263f05e2f3e0
[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
[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" "cae0f044c18adb0afb14a6ebbc3b2b7ccaab64380475b4ab0f553248ad4e1cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae0f044c18adb0afb14a6ebbc3b2b7ccaab64380475b4ab0f553248ad4e1cf7", kill_on_drop: false }`
[INFO] [stdout] cae0f044c18adb0afb14a6ebbc3b2b7ccaab64380475b4ab0f553248ad4e1cf7