[INFO] fetching crate ref_filter_map 1.0.1...
[INFO] testing ref_filter_map-1.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate ref_filter_map 1.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ref_filter_map 1.0.1 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_filter_map 1.0.1
[INFO] finished tweaking crates.io crate ref_filter_map 1.0.1
[INFO] tweaked toml for crates.io crate ref_filter_map 1.0.1 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] dac02a517143ee300fb2f1f30fa68357ebdf8fc9c7e577901b45c67d52bb886f
[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" "dac02a517143ee300fb2f1f30fa68357ebdf8fc9c7e577901b45c67d52bb886f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dac02a517143ee300fb2f1f30fa68357ebdf8fc9c7e577901b45c67d52bb886f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac02a517143ee300fb2f1f30fa68357ebdf8fc9c7e577901b45c67d52bb886f", kill_on_drop: false }`
[INFO] [stdout] dac02a517143ee300fb2f1f30fa68357ebdf8fc9c7e577901b45c67d52bb886f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bb57d63a128dc265a43bb33ec410b7e32bc821815eaa4cfb6f2087ff58cd3a04
[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" "bb57d63a128dc265a43bb33ec410b7e32bc821815eaa4cfb6f2087ff58cd3a04", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref_filter_map v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "bb57d63a128dc265a43bb33ec410b7e32bc821815eaa4cfb6f2087ff58cd3a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb57d63a128dc265a43bb33ec410b7e32bc821815eaa4cfb6f2087ff58cd3a04", kill_on_drop: false }`
[INFO] [stdout] bb57d63a128dc265a43bb33ec410b7e32bc821815eaa4cfb6f2087ff58cd3a04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 146625ca2697f827290e74e50a04e18d93b9fc9fe56edf832344bdc0fd201a23
[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" "146625ca2697f827290e74e50a04e18d93b9fc9fe56edf832344bdc0fd201a23", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref_filter_map v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "146625ca2697f827290e74e50a04e18d93b9fc9fe56edf832344bdc0fd201a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146625ca2697f827290e74e50a04e18d93b9fc9fe56edf832344bdc0fd201a23", kill_on_drop: false }`
[INFO] [stdout] 146625ca2697f827290e74e50a04e18d93b9fc9fe56edf832344bdc0fd201a23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 17d8332cfdb14866c85d2004129c4253d25394c6ca4de2d5456abd6ba704996d
[INFO] running `Command { std: "docker" "start" "-a" "17d8332cfdb14866c85d2004129c4253d25394c6ca4de2d5456abd6ba704996d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ref_filter_map-7a8e2f86f0be2e34
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ref_filter_map
[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 3 tests
[INFO] [stdout] test lib.rs - ref_mut_filter_map (line 77) ... ok
[INFO] [stdout] test lib.rs - (line 7) ... ok
[INFO] [stdout] test lib.rs - ref_filter_map (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.70s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17d8332cfdb14866c85d2004129c4253d25394c6ca4de2d5456abd6ba704996d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d8332cfdb14866c85d2004129c4253d25394c6ca4de2d5456abd6ba704996d", kill_on_drop: false }`
[INFO] [stdout] 17d8332cfdb14866c85d2004129c4253d25394c6ca4de2d5456abd6ba704996d