[INFO] fetching crate diffs 0.4.0...
[INFO] testing diffs-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate diffs 0.4.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate diffs 0.4.0 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 diffs 0.4.0
[INFO] finished tweaking crates.io crate diffs 0.4.0
[INFO] tweaked toml for crates.io crate diffs 0.4.0 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 9e99860c3b2b26919a1fccd53561898820a2884fd6d2794279905c515440b595
[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" "9e99860c3b2b26919a1fccd53561898820a2884fd6d2794279905c515440b595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e99860c3b2b26919a1fccd53561898820a2884fd6d2794279905c515440b595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e99860c3b2b26919a1fccd53561898820a2884fd6d2794279905c515440b595", kill_on_drop: false }`
[INFO] [stdout] 9e99860c3b2b26919a1fccd53561898820a2884fd6d2794279905c515440b595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 386af9702cbf843ba73d80f39dacc54c0f75b554bbe22181a8cb0ef087d34404
[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" "386af9702cbf843ba73d80f39dacc54c0f75b554bbe22181a8cb0ef087d34404", kill_on_drop: false }`
[INFO] [stderr]    Compiling diffs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "386af9702cbf843ba73d80f39dacc54c0f75b554bbe22181a8cb0ef087d34404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386af9702cbf843ba73d80f39dacc54c0f75b554bbe22181a8cb0ef087d34404", kill_on_drop: false }`
[INFO] [stdout] 386af9702cbf843ba73d80f39dacc54c0f75b554bbe22181a8cb0ef087d34404
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 0146111ed8b99a2aeb51005d150617c9e5eab3cd23df52bf7926f6af5d968bec
[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" "0146111ed8b99a2aeb51005d150617c9e5eab3cd23df52bf7926f6af5d968bec", kill_on_drop: false }`
[INFO] [stderr]    Compiling diffs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "0146111ed8b99a2aeb51005d150617c9e5eab3cd23df52bf7926f6af5d968bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0146111ed8b99a2aeb51005d150617c9e5eab3cd23df52bf7926f6af5d968bec", kill_on_drop: false }`
[INFO] [stdout] 0146111ed8b99a2aeb51005d150617c9e5eab3cd23df52bf7926f6af5d968bec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d0c3c6bacded4d33ff02a52d5c1086df2d23d98b50451606ad36427887527b2f
[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" "d0c3c6bacded4d33ff02a52d5c1086df2d23d98b50451606ad36427887527b2f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/diffs-c02b5a9678a5cd75
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test myers::test_modulo ... ok
[INFO] [stdout] test replace::myers ... ok
[INFO] [stdout] test test::test_diff ... ok
[INFO] [stdout] test test::test_contiguous ... ok
[INFO] [stdout] test patience::patience ... ok
[INFO] [stdout] test test::test_replace ... ok
[INFO] [stderr]    Doc-tests diffs
[INFO] [stdout] test test::test_pat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 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" "d0c3c6bacded4d33ff02a52d5c1086df2d23d98b50451606ad36427887527b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c3c6bacded4d33ff02a52d5c1086df2d23d98b50451606ad36427887527b2f", kill_on_drop: false }`
[INFO] [stdout] d0c3c6bacded4d33ff02a52d5c1086df2d23d98b50451606ad36427887527b2f