[INFO] fetching crate ff-uint_derive 0.1.4...
[INFO] testing ff-uint_derive-0.1.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ff-uint_derive 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ff-uint_derive 0.1.4 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 ff-uint_derive 0.1.4
[INFO] finished tweaking crates.io crate ff-uint_derive 0.1.4
[INFO] tweaked toml for crates.io crate ff-uint_derive 0.1.4 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fef50d2d58d2c5df1c5fca42de3addb41f4d91c073f81f5de388157fbb4340f2
[INFO] running `Command { std: "docker" "start" "-a" "fef50d2d58d2c5df1c5fca42de3addb41f4d91c073f81f5de388157fbb4340f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fef50d2d58d2c5df1c5fca42de3addb41f4d91c073f81f5de388157fbb4340f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fef50d2d58d2c5df1c5fca42de3addb41f4d91c073f81f5de388157fbb4340f2", kill_on_drop: false }`
[INFO] [stdout] fef50d2d58d2c5df1c5fca42de3addb41f4d91c073f81f5de388157fbb4340f2
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 505c0c1928deb904a0a121b2058159d3e823416100fe54a31b9cef0f4d18fd4c
[INFO] running `Command { std: "docker" "start" "-a" "505c0c1928deb904a0a121b2058159d3e823416100fe54a31b9cef0f4d18fd4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling ff-uint_derive v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.56s
[INFO] running `Command { std: "docker" "inspect" "505c0c1928deb904a0a121b2058159d3e823416100fe54a31b9cef0f4d18fd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "505c0c1928deb904a0a121b2058159d3e823416100fe54a31b9cef0f4d18fd4c", kill_on_drop: false }`
[INFO] [stdout] 505c0c1928deb904a0a121b2058159d3e823416100fe54a31b9cef0f4d18fd4c
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4db6ecac0d3876eb1507ba39cc3069e6195cf49ebaa9c800c27235c26d28b5be
[INFO] running `Command { std: "docker" "start" "-a" "4db6ecac0d3876eb1507ba39cc3069e6195cf49ebaa9c800c27235c26d28b5be", kill_on_drop: false }`
[INFO] [stderr]    Compiling ff-uint_derive v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "4db6ecac0d3876eb1507ba39cc3069e6195cf49ebaa9c800c27235c26d28b5be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4db6ecac0d3876eb1507ba39cc3069e6195cf49ebaa9c800c27235c26d28b5be", kill_on_drop: false }`
[INFO] [stdout] 4db6ecac0d3876eb1507ba39cc3069e6195cf49ebaa9c800c27235c26d28b5be
[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] a4010f7243a7a86b40777bdad9f6f239e9afa4e2f818ac4b2ca0cfe9c044cac1
[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" "a4010f7243a7a86b40777bdad9f6f239e9afa4e2f818ac4b2ca0cfe9c044cac1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ff_uint_derive-c0a91ab0aee3a3db
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests ff-uint_derive
[INFO] [stdout] test test_exp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "a4010f7243a7a86b40777bdad9f6f239e9afa4e2f818ac4b2ca0cfe9c044cac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4010f7243a7a86b40777bdad9f6f239e9afa4e2f818ac4b2ca0cfe9c044cac1", kill_on_drop: false }`
[INFO] [stdout] a4010f7243a7a86b40777bdad9f6f239e9afa4e2f818ac4b2ca0cfe9c044cac1