[INFO] fetching crate serde-ext 0.1.1...
[INFO] testing serde-ext-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate serde-ext 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate serde-ext 0.1.1 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 serde-ext 0.1.1
[INFO] finished tweaking crates.io crate serde-ext 0.1.1
[INFO] tweaked toml for crates.io crate serde-ext 0.1.1 written to /workspace/builds/worker-9/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-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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 35c0dea7fcea5c221dde3c39701be60efc1d41cb5163d8ee5cba266b3b916a74
[INFO] running `Command { std: "docker" "start" "-a" "35c0dea7fcea5c221dde3c39701be60efc1d41cb5163d8ee5cba266b3b916a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35c0dea7fcea5c221dde3c39701be60efc1d41cb5163d8ee5cba266b3b916a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35c0dea7fcea5c221dde3c39701be60efc1d41cb5163d8ee5cba266b3b916a74", kill_on_drop: false }`
[INFO] [stdout] 35c0dea7fcea5c221dde3c39701be60efc1d41cb5163d8ee5cba266b3b916a74
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 1c775e98c295bcc06d6fdc981c4b2fd0e2d1c3ef33d151098a37d56dfa50ea9c
[INFO] running `Command { std: "docker" "start" "-a" "1c775e98c295bcc06d6fdc981c4b2fd0e2d1c3ef33d151098a37d56dfa50ea9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling serde-ext-macros v0.1.1
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling serde-ext v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.27s
[INFO] running `Command { std: "docker" "inspect" "1c775e98c295bcc06d6fdc981c4b2fd0e2d1c3ef33d151098a37d56dfa50ea9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c775e98c295bcc06d6fdc981c4b2fd0e2d1c3ef33d151098a37d56dfa50ea9c", kill_on_drop: false }`
[INFO] [stdout] 1c775e98c295bcc06d6fdc981c4b2fd0e2d1c3ef33d151098a37d56dfa50ea9c
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c45ffe0125564cbf9744953dbc328a1ea96e4bae2b4a73032d4c421279636b3
[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" "1c45ffe0125564cbf9744953dbc328a1ea96e4bae2b4a73032d4c421279636b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-ext v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "1c45ffe0125564cbf9744953dbc328a1ea96e4bae2b4a73032d4c421279636b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c45ffe0125564cbf9744953dbc328a1ea96e4bae2b4a73032d4c421279636b3", kill_on_drop: false }`
[INFO] [stdout] 1c45ffe0125564cbf9744953dbc328a1ea96e4bae2b4a73032d4c421279636b3
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 73f05cb25cdae882e93ecb0a37d5db9f954d11cc1a7f789cf1e6d9a1a4c04748
[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" "73f05cb25cdae882e93ecb0a37d5db9f954d11cc1a7f789cf1e6d9a1a4c04748", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_ext-5694aeecd463f84e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde-ext
[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" "73f05cb25cdae882e93ecb0a37d5db9f954d11cc1a7f789cf1e6d9a1a4c04748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f05cb25cdae882e93ecb0a37d5db9f954d11cc1a7f789cf1e6d9a1a4c04748", kill_on_drop: false }`
[INFO] [stdout] 73f05cb25cdae882e93ecb0a37d5db9f954d11cc1a7f789cf1e6d9a1a4c04748