[INFO] fetching crate guppy-summaries 0.3.1...
[INFO] testing guppy-summaries-0.3.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate guppy-summaries 0.3.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate guppy-summaries 0.3.1 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 guppy-summaries 0.3.1
[INFO] finished tweaking crates.io crate guppy-summaries 0.3.1
[INFO] tweaked toml for crates.io crate guppy-summaries 0.3.1 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 1cb551735b68bac40a4793c0d9b22493c995150ec241f2773bdd86532f52d2e8
[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" "1cb551735b68bac40a4793c0d9b22493c995150ec241f2773bdd86532f52d2e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb551735b68bac40a4793c0d9b22493c995150ec241f2773bdd86532f52d2e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb551735b68bac40a4793c0d9b22493c995150ec241f2773bdd86532f52d2e8", kill_on_drop: false }`
[INFO] [stdout] 1cb551735b68bac40a4793c0d9b22493c995150ec241f2773bdd86532f52d2e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 127bdafcb060085d67e5c332d6c8e34951971d62670272f1e2f7fa49a27d9556
[INFO] running `Command { std: "docker" "start" "-a" "127bdafcb060085d67e5c332d6c8e34951971d62670272f1e2f7fa49a27d9556", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.10.1
[INFO] [stderr]    Compiling diffus v0.9.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling guppy-summaries v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.16s
[INFO] running `Command { std: "docker" "inspect" "127bdafcb060085d67e5c332d6c8e34951971d62670272f1e2f7fa49a27d9556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "127bdafcb060085d67e5c332d6c8e34951971d62670272f1e2f7fa49a27d9556", kill_on_drop: false }`
[INFO] [stdout] 127bdafcb060085d67e5c332d6c8e34951971d62670272f1e2f7fa49a27d9556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4f7c2b65b11e058b2c341252ab59e6aff2a866c00fc679bab3c83390c1d41c77
[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" "4f7c2b65b11e058b2c341252ab59e6aff2a866c00fc679bab3c83390c1d41c77", kill_on_drop: false }`
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling guppy-summaries v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.80s
[INFO] running `Command { std: "docker" "inspect" "4f7c2b65b11e058b2c341252ab59e6aff2a866c00fc679bab3c83390c1d41c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7c2b65b11e058b2c341252ab59e6aff2a866c00fc679bab3c83390c1d41c77", kill_on_drop: false }`
[INFO] [stdout] 4f7c2b65b11e058b2c341252ab59e6aff2a866c00fc679bab3c83390c1d41c77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ec1d67fc867d0a345694e393d00527ad1919525c1ed341ce444dfc3549ad937f
[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" "ec1d67fc867d0a345694e393d00527ad1919525c1ed341ce444dfc3549ad937f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guppy_summaries-d83240be39e028de
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test unit_tests::basic_tests::basic_roundtrip ... ok
[INFO] [stdout] test unit_tests::basic_tests::empty_roundtrip ... ok
[INFO] [stdout] test unit_tests::basic_tests::test_serialization ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests guppy-summaries
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec1d67fc867d0a345694e393d00527ad1919525c1ed341ce444dfc3549ad937f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1d67fc867d0a345694e393d00527ad1919525c1ed341ce444dfc3549ad937f", kill_on_drop: false }`
[INFO] [stdout] ec1d67fc867d0a345694e393d00527ad1919525c1ed341ce444dfc3549ad937f