[INFO] fetching crate rlua_serde 0.4.0...
[INFO] testing rlua_serde-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rlua_serde 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rlua_serde 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 rlua_serde 0.4.0
[INFO] finished tweaking crates.io crate rlua_serde 0.4.0
[INFO] tweaked toml for crates.io crate rlua_serde 0.4.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b51641c527e18f2a65dde63f381c4095bd959c241a5a1b18310a64b0a3a3b53
[INFO] running `Command { std: "docker" "start" "-a" "3b51641c527e18f2a65dde63f381c4095bd959c241a5a1b18310a64b0a3a3b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b51641c527e18f2a65dde63f381c4095bd959c241a5a1b18310a64b0a3a3b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b51641c527e18f2a65dde63f381c4095bd959c241a5a1b18310a64b0a3a3b53", kill_on_drop: false }`
[INFO] [stdout] 3b51641c527e18f2a65dde63f381c4095bd959c241a5a1b18310a64b0a3a3b53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6a980caa944a8402dc9a768ea33b087add6fce324c5e71a54ba4a81bf0be146d
[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" "6a980caa944a8402dc9a768ea33b087add6fce324c5e71a54ba4a81bf0be146d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling rlua_serde v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.99s
[INFO] running `Command { std: "docker" "inspect" "6a980caa944a8402dc9a768ea33b087add6fce324c5e71a54ba4a81bf0be146d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a980caa944a8402dc9a768ea33b087add6fce324c5e71a54ba4a81bf0be146d", kill_on_drop: false }`
[INFO] [stdout] 6a980caa944a8402dc9a768ea33b087add6fce324c5e71a54ba4a81bf0be146d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] d73d40f71a83c3d13a5fdc2a23235cba8ba94536b23c3fd24e84b4fef9e47d07
[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" "d73d40f71a83c3d13a5fdc2a23235cba8ba94536b23c3fd24e84b4fef9e47d07", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlua_serde v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "d73d40f71a83c3d13a5fdc2a23235cba8ba94536b23c3fd24e84b4fef9e47d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73d40f71a83c3d13a5fdc2a23235cba8ba94536b23c3fd24e84b4fef9e47d07", kill_on_drop: false }`
[INFO] [stdout] d73d40f71a83c3d13a5fdc2a23235cba8ba94536b23c3fd24e84b4fef9e47d07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 29f6d044870738413d69ccd6ae3e8acecd1d910dbd433fa452ca15c9de5a2cbd
[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" "29f6d044870738413d69ccd6ae3e8acecd1d910dbd433fa452ca15c9de5a2cbd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rlua_serde-a757cf4a79bbc883
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test de::tests::test_tuple ... ok
[INFO] [stderr]    Doc-tests rlua_serde
[INFO] [stdout] test de::tests::test_struct ... ok
[INFO] [stdout] test ser::tests::test_struct ... ok
[INFO] [stdout] test de::tests::test_enum ... ok
[INFO] [stdout] test ser::tests::test_num ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... 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" "29f6d044870738413d69ccd6ae3e8acecd1d910dbd433fa452ca15c9de5a2cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29f6d044870738413d69ccd6ae3e8acecd1d910dbd433fa452ca15c9de5a2cbd", kill_on_drop: false }`
[INFO] [stdout] 29f6d044870738413d69ccd6ae3e8acecd1d910dbd433fa452ca15c9de5a2cbd