[INFO] fetching crate substr 1.0.0...
[INFO] testing substr-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate substr 1.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate substr 1.0.0 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 substr 1.0.0
[INFO] finished tweaking crates.io crate substr 1.0.0
[INFO] tweaked toml for crates.io crate substr 1.0.0 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] de373b113207acd40bd32e7f7f07e2e7848acf42c5c2890ae30c46bf9c16064f
[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" "de373b113207acd40bd32e7f7f07e2e7848acf42c5c2890ae30c46bf9c16064f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de373b113207acd40bd32e7f7f07e2e7848acf42c5c2890ae30c46bf9c16064f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de373b113207acd40bd32e7f7f07e2e7848acf42c5c2890ae30c46bf9c16064f", kill_on_drop: false }`
[INFO] [stdout] de373b113207acd40bd32e7f7f07e2e7848acf42c5c2890ae30c46bf9c16064f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] be539c5f17c7381430b4909c8fc3fd1f4ab314aed543614327d28c1f0a3973bc
[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" "be539c5f17c7381430b4909c8fc3fd1f4ab314aed543614327d28c1f0a3973bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling substr v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "be539c5f17c7381430b4909c8fc3fd1f4ab314aed543614327d28c1f0a3973bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be539c5f17c7381430b4909c8fc3fd1f4ab314aed543614327d28c1f0a3973bc", kill_on_drop: false }`
[INFO] [stdout] be539c5f17c7381430b4909c8fc3fd1f4ab314aed543614327d28c1f0a3973bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 198ce7f5cf901d4eacd7ecc97505e8e2b7d0aa69b4be1a475214dc4740c33d77
[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" "198ce7f5cf901d4eacd7ecc97505e8e2b7d0aa69b4be1a475214dc4740c33d77", kill_on_drop: false }`
[INFO] [stderr]    Compiling substr v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "198ce7f5cf901d4eacd7ecc97505e8e2b7d0aa69b4be1a475214dc4740c33d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "198ce7f5cf901d4eacd7ecc97505e8e2b7d0aa69b4be1a475214dc4740c33d77", kill_on_drop: false }`
[INFO] [stdout] 198ce7f5cf901d4eacd7ecc97505e8e2b7d0aa69b4be1a475214dc4740c33d77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 25a28434c7d740b909102b2af3592c30aeed4d7c233a7b437fd48c35be2bd0bf
[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" "25a28434c7d740b909102b2af3592c30aeed4d7c233a7b437fd48c35be2bd0bf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/substr-26ac29b79b4daced
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::empty_equality ... ok
[INFO] [stdout] test tests::find_substr ... ok
[INFO] [stdout] test tests::equality ... ok
[INFO] [stdout] test tests::equality_with_different_parents ... ok
[INFO] [stdout] test tests::to_range ... ok
[INFO] [stdout] test tests::roundtrip_without_contained_child ... ok
[INFO] [stdout] test tests::roundtrip_with_different_parent ... ok
[INFO] [stdout] test tests::roundtrip_with_contained_child ... ok
[INFO] [stdout] test tests::from_range ... ok
[INFO] [stdout] test tests::roundtrip_preserves_ptr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests substr
[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" "25a28434c7d740b909102b2af3592c30aeed4d7c233a7b437fd48c35be2bd0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25a28434c7d740b909102b2af3592c30aeed4d7c233a7b437fd48c35be2bd0bf", kill_on_drop: false }`
[INFO] [stdout] 25a28434c7d740b909102b2af3592c30aeed4d7c233a7b437fd48c35be2bd0bf