[INFO] fetching crate hash-db 0.15.2...
[INFO] testing hash-db-0.15.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate hash-db 0.15.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate hash-db 0.15.2 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 hash-db 0.15.2
[INFO] finished tweaking crates.io crate hash-db 0.15.2
[INFO] tweaked toml for crates.io crate hash-db 0.15.2 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 223c90d05c9f5d0dd7fa626bb2d1ca3be47f8b07be1f89708111fcd012e7d450
[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" "223c90d05c9f5d0dd7fa626bb2d1ca3be47f8b07be1f89708111fcd012e7d450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "223c90d05c9f5d0dd7fa626bb2d1ca3be47f8b07be1f89708111fcd012e7d450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223c90d05c9f5d0dd7fa626bb2d1ca3be47f8b07be1f89708111fcd012e7d450", kill_on_drop: false }`
[INFO] [stdout] 223c90d05c9f5d0dd7fa626bb2d1ca3be47f8b07be1f89708111fcd012e7d450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ca7a1bbf3e3b98e32cff0f6d5c0512603c6da4d043f731935b63dd4845cba5f9
[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" "ca7a1bbf3e3b98e32cff0f6d5c0512603c6da4d043f731935b63dd4845cba5f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling hash-db v0.15.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "ca7a1bbf3e3b98e32cff0f6d5c0512603c6da4d043f731935b63dd4845cba5f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7a1bbf3e3b98e32cff0f6d5c0512603c6da4d043f731935b63dd4845cba5f9", kill_on_drop: false }`
[INFO] [stdout] ca7a1bbf3e3b98e32cff0f6d5c0512603c6da4d043f731935b63dd4845cba5f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 5dc403aad2884ead75484e93689afa62a5d62de42a46d642e7e8ad19377a5d68
[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" "5dc403aad2884ead75484e93689afa62a5d62de42a46d642e7e8ad19377a5d68", kill_on_drop: false }`
[INFO] [stderr]    Compiling hash-db v0.15.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "5dc403aad2884ead75484e93689afa62a5d62de42a46d642e7e8ad19377a5d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc403aad2884ead75484e93689afa62a5d62de42a46d642e7e8ad19377a5d68", kill_on_drop: false }`
[INFO] [stdout] 5dc403aad2884ead75484e93689afa62a5d62de42a46d642e7e8ad19377a5d68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 445308c3a458d4f01a904fe6a1d137d4c9418a7acc0d86f97ff41f6b681e42dd
[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" "445308c3a458d4f01a904fe6a1d137d4c9418a7acc0d86f97ff41f6b681e42dd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hash_db-50ece342d11e49fb
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hash-db
[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" "445308c3a458d4f01a904fe6a1d137d4c9418a7acc0d86f97ff41f6b681e42dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "445308c3a458d4f01a904fe6a1d137d4c9418a7acc0d86f97ff41f6b681e42dd", kill_on_drop: false }`
[INFO] [stdout] 445308c3a458d4f01a904fe6a1d137d4c9418a7acc0d86f97ff41f6b681e42dd