[INFO] fetching crate combomatic 0.0.0...
[INFO] testing combomatic-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate combomatic 0.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate combomatic 0.0.0 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 combomatic 0.0.0
[INFO] finished tweaking crates.io crate combomatic 0.0.0
[INFO] tweaked toml for crates.io crate combomatic 0.0.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 092172955b765594f9e9f28538b1789f78e3960c31e0eeefac2fb3e362253ca8
[INFO] running `Command { std: "docker" "start" "-a" "092172955b765594f9e9f28538b1789f78e3960c31e0eeefac2fb3e362253ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "092172955b765594f9e9f28538b1789f78e3960c31e0eeefac2fb3e362253ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "092172955b765594f9e9f28538b1789f78e3960c31e0eeefac2fb3e362253ca8", kill_on_drop: false }`
[INFO] [stdout] 092172955b765594f9e9f28538b1789f78e3960c31e0eeefac2fb3e362253ca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c9e25ef3a95c295e331677af4fb50447406aa48c546f34347da7a98fe249e16f
[INFO] running `Command { std: "docker" "start" "-a" "c9e25ef3a95c295e331677af4fb50447406aa48c546f34347da7a98fe249e16f", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling combomatic v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.66s
[INFO] running `Command { std: "docker" "inspect" "c9e25ef3a95c295e331677af4fb50447406aa48c546f34347da7a98fe249e16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e25ef3a95c295e331677af4fb50447406aa48c546f34347da7a98fe249e16f", kill_on_drop: false }`
[INFO] [stdout] c9e25ef3a95c295e331677af4fb50447406aa48c546f34347da7a98fe249e16f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 93504eefc96a6a6990f19225845403ffba68751de3ffaf58478d09480e841753
[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" "93504eefc96a6a6990f19225845403ffba68751de3ffaf58478d09480e841753", kill_on_drop: false }`
[INFO] [stderr]    Compiling combomatic v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "93504eefc96a6a6990f19225845403ffba68751de3ffaf58478d09480e841753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93504eefc96a6a6990f19225845403ffba68751de3ffaf58478d09480e841753", kill_on_drop: false }`
[INFO] [stdout] 93504eefc96a6a6990f19225845403ffba68751de3ffaf58478d09480e841753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 469ae5f7e240ddb81dc2a32c1267e98ccfecaee3636820330570be29e136c63c
[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" "469ae5f7e240ddb81dc2a32c1267e98ccfecaee3636820330570be29e136c63c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/combomatic-51f64c83bb763f55
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::modular_distance_misc ... ok
[INFO] [stdout] test tests::range_one ... ok
[INFO] [stdout] test tests::range_zero ... ok
[INFO] [stdout] test tests::range_one_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "469ae5f7e240ddb81dc2a32c1267e98ccfecaee3636820330570be29e136c63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469ae5f7e240ddb81dc2a32c1267e98ccfecaee3636820330570be29e136c63c", kill_on_drop: false }`
[INFO] [stdout] 469ae5f7e240ddb81dc2a32c1267e98ccfecaee3636820330570be29e136c63c