[INFO] fetching crate cfg_feature_groups 0.1.1...
[INFO] testing cfg_feature_groups-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cfg_feature_groups 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cfg_feature_groups 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 cfg_feature_groups 0.1.1
[INFO] finished tweaking crates.io crate cfg_feature_groups 0.1.1
[INFO] tweaked toml for crates.io crate cfg_feature_groups 0.1.1 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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 4601d8830c0cc767b21dd0d164c03d70e94c5fca1894e79c4859f7cac04bf906
[INFO] running `Command { std: "docker" "start" "-a" "4601d8830c0cc767b21dd0d164c03d70e94c5fca1894e79c4859f7cac04bf906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4601d8830c0cc767b21dd0d164c03d70e94c5fca1894e79c4859f7cac04bf906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4601d8830c0cc767b21dd0d164c03d70e94c5fca1894e79c4859f7cac04bf906", kill_on_drop: false }`
[INFO] [stdout] 4601d8830c0cc767b21dd0d164c03d70e94c5fca1894e79c4859f7cac04bf906
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 9a38809a26c1c5c1267d268c9121b9983941e30607ad028bff549ae3daa7cbd6
[INFO] running `Command { std: "docker" "start" "-a" "9a38809a26c1c5c1267d268c9121b9983941e30607ad028bff549ae3daa7cbd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cfg_feature_groups v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.46s
[INFO] running `Command { std: "docker" "inspect" "9a38809a26c1c5c1267d268c9121b9983941e30607ad028bff549ae3daa7cbd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a38809a26c1c5c1267d268c9121b9983941e30607ad028bff549ae3daa7cbd6", kill_on_drop: false }`
[INFO] [stdout] 9a38809a26c1c5c1267d268c9121b9983941e30607ad028bff549ae3daa7cbd6
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c8cf42d7d7a358bb8081e5b69372d4eabb0719482fbbfa4d56bba09f77fb5c4
[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" "4c8cf42d7d7a358bb8081e5b69372d4eabb0719482fbbfa4d56bba09f77fb5c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg_feature_groups v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "4c8cf42d7d7a358bb8081e5b69372d4eabb0719482fbbfa4d56bba09f77fb5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8cf42d7d7a358bb8081e5b69372d4eabb0719482fbbfa4d56bba09f77fb5c4", kill_on_drop: false }`
[INFO] [stdout] 4c8cf42d7d7a358bb8081e5b69372d4eabb0719482fbbfa4d56bba09f77fb5c4
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 254d20b228addc21a310c863c510c1f3ec51d7de504e00840a98b41135d1ad82
[INFO] running `Command { std: "docker" "start" "-a" "254d20b228addc21a310c863c510c1f3ec51d7de504e00840a98b41135d1ad82", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[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] [stderr]      Running /opt/rustwide/target/debug/deps/cfg_feature_groups-6b8328ecf9b6bf1d
[INFO] [stderr]    Doc-tests cfg_feature_groups
[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" "254d20b228addc21a310c863c510c1f3ec51d7de504e00840a98b41135d1ad82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254d20b228addc21a310c863c510c1f3ec51d7de504e00840a98b41135d1ad82", kill_on_drop: false }`
[INFO] [stdout] 254d20b228addc21a310c863c510c1f3ec51d7de504e00840a98b41135d1ad82