[INFO] fetching crate grouping_by 0.2.1...
[INFO] testing grouping_by-0.2.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate grouping_by 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate grouping_by 0.2.1 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 grouping_by 0.2.1
[INFO] finished tweaking crates.io crate grouping_by 0.2.1
[INFO] tweaked toml for crates.io crate grouping_by 0.2.1 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4379fa051405de1eee3980b61991523a53b79ea781c6feddef0320a6429e450f
[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" "4379fa051405de1eee3980b61991523a53b79ea781c6feddef0320a6429e450f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4379fa051405de1eee3980b61991523a53b79ea781c6feddef0320a6429e450f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4379fa051405de1eee3980b61991523a53b79ea781c6feddef0320a6429e450f", kill_on_drop: false }`
[INFO] [stdout] 4379fa051405de1eee3980b61991523a53b79ea781c6feddef0320a6429e450f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c28684560a67168139547279b68b3a1761ee68fe9c986701519ca4d5b4c29893
[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" "c28684560a67168139547279b68b3a1761ee68fe9c986701519ca4d5b4c29893", kill_on_drop: false }`
[INFO] [stderr]    Compiling grouping_by v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "c28684560a67168139547279b68b3a1761ee68fe9c986701519ca4d5b4c29893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28684560a67168139547279b68b3a1761ee68fe9c986701519ca4d5b4c29893", kill_on_drop: false }`
[INFO] [stdout] c28684560a67168139547279b68b3a1761ee68fe9c986701519ca4d5b4c29893
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 562457d99343a5105b7192b80747c9ea0b93d48b965eef1c7a21699e35aaeb4d
[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" "562457d99343a5105b7192b80747c9ea0b93d48b965eef1c7a21699e35aaeb4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling grouping_by v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `Command { std: "docker" "inspect" "562457d99343a5105b7192b80747c9ea0b93d48b965eef1c7a21699e35aaeb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "562457d99343a5105b7192b80747c9ea0b93d48b965eef1c7a21699e35aaeb4d", kill_on_drop: false }`
[INFO] [stdout] 562457d99343a5105b7192b80747c9ea0b93d48b965eef1c7a21699e35aaeb4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 9433a6a150f5fa7b3bc741c8054c0d7c00e0b71fbb7f36ecfb97f924e833c90b
[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" "9433a6a150f5fa7b3bc741c8054c0d7c00e0b71fbb7f36ecfb97f924e833c90b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/grouping_by-02e89dafc9ba747a
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/common-41c3ed832d5867c4
[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 9 tests
[INFO] [stdout] test grouping_by_min ... ok
[INFO] [stdout] test grouping_by_max ... ok
[INFO] [stdout] test test_counter ... ok
[INFO] [stdout] test test_counter_num ... ok
[INFO] [stdout] test test_grouping_by ... ok
[INFO] [stdout] test test_grouping_by_num_set ... ok
[INFO] [stdout] test test_grouping_by_set ... ok
[INFO] [stdout] test test_grouping_by_summing ... ok
[INFO] [stdout] test test_grouping_by_num ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests grouping_by
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - GroupingBy::grouping_by_max (line 131) ... ok
[INFO] [stdout] test src/lib.rs - GroupingBy::summing (line 215) ... ok
[INFO] [stdout] test src/lib.rs - GroupingBy::grouping_by_min (line 173) ... ok
[INFO] [stdout] test src/lib.rs - GroupingBy::counter (line 103) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - GroupingBy::grouping_by_as_set (line 78) ... ok
[INFO] [stdout] test src/lib.rs - GroupingBy::grouping_by (line 52) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9433a6a150f5fa7b3bc741c8054c0d7c00e0b71fbb7f36ecfb97f924e833c90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9433a6a150f5fa7b3bc741c8054c0d7c00e0b71fbb7f36ecfb97f924e833c90b", kill_on_drop: false }`
[INFO] [stdout] 9433a6a150f5fa7b3bc741c8054c0d7c00e0b71fbb7f36ecfb97f924e833c90b