[INFO] fetching crate volatile_unique_id 0.1.1...
[INFO] testing volatile_unique_id-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate volatile_unique_id 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate volatile_unique_id 0.1.1 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 volatile_unique_id 0.1.1
[INFO] finished tweaking crates.io crate volatile_unique_id 0.1.1
[INFO] tweaked toml for crates.io crate volatile_unique_id 0.1.1 written to /workspace/builds/worker-12/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-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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 2097b2cdf3ff45119aed0e8e64dfa7f022c244e91a24d883647b688af5c37899
[INFO] running `Command { std: "docker" "start" "-a" "2097b2cdf3ff45119aed0e8e64dfa7f022c244e91a24d883647b688af5c37899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2097b2cdf3ff45119aed0e8e64dfa7f022c244e91a24d883647b688af5c37899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2097b2cdf3ff45119aed0e8e64dfa7f022c244e91a24d883647b688af5c37899", kill_on_drop: false }`
[INFO] [stdout] 2097b2cdf3ff45119aed0e8e64dfa7f022c244e91a24d883647b688af5c37899
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 056246f6abbef80300d8c0f8b365904ddf294cdf58770bd6c03396b0a1e7e616
[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" "056246f6abbef80300d8c0f8b365904ddf294cdf58770bd6c03396b0a1e7e616", kill_on_drop: false }`
[INFO] [stderr]    Compiling volatile_unique_id v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "056246f6abbef80300d8c0f8b365904ddf294cdf58770bd6c03396b0a1e7e616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "056246f6abbef80300d8c0f8b365904ddf294cdf58770bd6c03396b0a1e7e616", kill_on_drop: false }`
[INFO] [stdout] 056246f6abbef80300d8c0f8b365904ddf294cdf58770bd6c03396b0a1e7e616
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfcdb97d10c2289135c4be6e4ad440b24bf39fe881363cb7eb590b2dd2897fb3
[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" "cfcdb97d10c2289135c4be6e4ad440b24bf39fe881363cb7eb590b2dd2897fb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling volatile_unique_id v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "cfcdb97d10c2289135c4be6e4ad440b24bf39fe881363cb7eb590b2dd2897fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfcdb97d10c2289135c4be6e4ad440b24bf39fe881363cb7eb590b2dd2897fb3", kill_on_drop: false }`
[INFO] [stdout] cfcdb97d10c2289135c4be6e4ad440b24bf39fe881363cb7eb590b2dd2897fb3
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9d0017da1099a3661968c25854572cbe4a07b93821e7a5b01e5b4b45e154ec2b
[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" "9d0017da1099a3661968c25854572cbe4a07b93821e7a5b01e5b4b45e154ec2b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/volatile_unique_id-8437ea9c2252e55c
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::returning_ids_will_allow_them_to_be_reallocated ... ok
[INFO] [stdout] test tests::allocate_ids_no_duplicates ... ok
[INFO] [stderr]    Doc-tests volatile_unique_id
[INFO] [stdout] test tests::dont_return_ownership_if_live_reference ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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" "9d0017da1099a3661968c25854572cbe4a07b93821e7a5b01e5b4b45e154ec2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0017da1099a3661968c25854572cbe4a07b93821e7a5b01e5b4b45e154ec2b", kill_on_drop: false }`
[INFO] [stdout] 9d0017da1099a3661968c25854572cbe4a07b93821e7a5b01e5b4b45e154ec2b