[INFO] crate discrimination-tree 0.2.1 is already in cache
[INFO] testing discrimination-tree-0.2.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate discrimination-tree 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate discrimination-tree 0.2.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate discrimination-tree 0.2.1
[INFO] finished tweaking crates.io crate discrimination-tree 0.2.1
[INFO] tweaked toml for crates.io crate discrimination-tree 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aa7df55580041106ab59d7eb4f4c695da0e337517827776754df93becce9fcd
[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" "7aa7df55580041106ab59d7eb4f4c695da0e337517827776754df93becce9fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa7df55580041106ab59d7eb4f4c695da0e337517827776754df93becce9fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa7df55580041106ab59d7eb4f4c695da0e337517827776754df93becce9fcd", kill_on_drop: false }`
[INFO] [stdout] 7aa7df55580041106ab59d7eb4f4c695da0e337517827776754df93becce9fcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89bf6f10cf9580f91e5b1ad8a377df6099cbae28ad8e0d4a9dcfa196ec64faf4
[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" "89bf6f10cf9580f91e5b1ad8a377df6099cbae28ad8e0d4a9dcfa196ec64faf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling discrimination-tree v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "89bf6f10cf9580f91e5b1ad8a377df6099cbae28ad8e0d4a9dcfa196ec64faf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89bf6f10cf9580f91e5b1ad8a377df6099cbae28ad8e0d4a9dcfa196ec64faf4", kill_on_drop: false }`
[INFO] [stdout] 89bf6f10cf9580f91e5b1ad8a377df6099cbae28ad8e0d4a9dcfa196ec64faf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa0e2b472e8e1ea111e4636ffb6aa681b6a0c5b7fcb5519dc9f906db14c4e231
[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" "aa0e2b472e8e1ea111e4636ffb6aa681b6a0c5b7fcb5519dc9f906db14c4e231", kill_on_drop: false }`
[INFO] [stderr]    Compiling discrimination-tree v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "aa0e2b472e8e1ea111e4636ffb6aa681b6a0c5b7fcb5519dc9f906db14c4e231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0e2b472e8e1ea111e4636ffb6aa681b6a0c5b7fcb5519dc9f906db14c4e231", kill_on_drop: false }`
[INFO] [stdout] aa0e2b472e8e1ea111e4636ffb6aa681b6a0c5b7fcb5519dc9f906db14c4e231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9967010f46d8d31bef64775218b4ea4209a2a24c92ff1ee6c50feb9c1f3c92e
[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" "e9967010f46d8d31bef64775218b4ea4209a2a24c92ff1ee6c50feb9c1f3c92e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/discrimination_tree-ff51c5265de913fd
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests discrimination-tree
[INFO] [stdout] test tests::var_var ... ok
[INFO] [stdout] test tests::insertion ... ok
[INFO] [stdout] test tests::unification ... ok
[INFO] [stdout] test tests::generalisation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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" "e9967010f46d8d31bef64775218b4ea4209a2a24c92ff1ee6c50feb9c1f3c92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9967010f46d8d31bef64775218b4ea4209a2a24c92ff1ee6c50feb9c1f3c92e", kill_on_drop: false }`
[INFO] [stdout] e9967010f46d8d31bef64775218b4ea4209a2a24c92ff1ee6c50feb9c1f3c92e