[INFO] fetching crate webcomponent 0.6.1...
[INFO] testing webcomponent-0.6.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate webcomponent 0.6.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate webcomponent 0.6.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webcomponent 0.6.1
[INFO] finished tweaking crates.io crate webcomponent 0.6.1
[INFO] tweaked toml for crates.io crate webcomponent 0.6.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded js v0.2.12
[INFO] [stderr]   Downloaded cstring v0.0.5
[INFO] [stderr]   Downloaded callback v0.5.2
[INFO] [stderr]   Downloaded spin v0.7.0
[INFO] [stderr]   Downloaded cty v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "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] b5c187fe46e7c91eb80037ae44c6cf6dc59e630676c87a7d620aa49ad9b5324b
[INFO] running `Command { std: "docker" "start" "-a" "b5c187fe46e7c91eb80037ae44c6cf6dc59e630676c87a7d620aa49ad9b5324b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5c187fe46e7c91eb80037ae44c6cf6dc59e630676c87a7d620aa49ad9b5324b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5c187fe46e7c91eb80037ae44c6cf6dc59e630676c87a7d620aa49ad9b5324b", kill_on_drop: false }`
[INFO] [stdout] b5c187fe46e7c91eb80037ae44c6cf6dc59e630676c87a7d620aa49ad9b5324b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bba0bc747a10ca66ed263b9f6cff6e301fd4d7821c8df38c0555f38bdd0faf02
[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" "bba0bc747a10ca66ed263b9f6cff6e301fd4d7821c8df38c0555f38bdd0faf02", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling spin v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cstring v0.0.5
[INFO] [stderr]    Compiling callback v0.5.2
[INFO] [stderr]    Compiling js v0.2.12
[INFO] [stderr]    Compiling webcomponent v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "bba0bc747a10ca66ed263b9f6cff6e301fd4d7821c8df38c0555f38bdd0faf02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba0bc747a10ca66ed263b9f6cff6e301fd4d7821c8df38c0555f38bdd0faf02", kill_on_drop: false }`
[INFO] [stdout] bba0bc747a10ca66ed263b9f6cff6e301fd4d7821c8df38c0555f38bdd0faf02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4e3d08f5708b78105b955058ff2a158d4c74a58c642f7f394fec74572768e21
[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" "c4e3d08f5708b78105b955058ff2a158d4c74a58c642f7f394fec74572768e21", kill_on_drop: false }`
[INFO] [stderr]    Compiling webcomponent v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "c4e3d08f5708b78105b955058ff2a158d4c74a58c642f7f394fec74572768e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e3d08f5708b78105b955058ff2a158d4c74a58c642f7f394fec74572768e21", kill_on_drop: false }`
[INFO] [stdout] c4e3d08f5708b78105b955058ff2a158d4c74a58c642f7f394fec74572768e21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 48f389d8ef3bf953ef13e64ddc7fefcec2e37554bdaf2ba75af62ceac6e9fc7d
[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" "48f389d8ef3bf953ef13e64ddc7fefcec2e37554bdaf2ba75af62ceac6e9fc7d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/webcomponent-256124f73c82f563
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/webcomponent-256124f73c82f563` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "48f389d8ef3bf953ef13e64ddc7fefcec2e37554bdaf2ba75af62ceac6e9fc7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48f389d8ef3bf953ef13e64ddc7fefcec2e37554bdaf2ba75af62ceac6e9fc7d", kill_on_drop: false }`
[INFO] [stdout] 48f389d8ef3bf953ef13e64ddc7fefcec2e37554bdaf2ba75af62ceac6e9fc7d