[INFO] fetching crate web_canvas 0.0.7...
[INFO] testing web_canvas-0.0.7 against 1.60.0 for beta-1.61-1
[INFO] extracting crate web_canvas 0.0.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate web_canvas 0.0.7 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web_canvas 0.0.7
[INFO] finished tweaking crates.io crate web_canvas 0.0.7
[INFO] tweaked toml for crates.io crate web_canvas 0.0.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] e0e32abac0cb3e8d06b7d77213ee50ef5c60ff6263c444b7eeacafe9c78c54b3
[INFO] running `Command { std: "docker" "start" "-a" "e0e32abac0cb3e8d06b7d77213ee50ef5c60ff6263c444b7eeacafe9c78c54b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0e32abac0cb3e8d06b7d77213ee50ef5c60ff6263c444b7eeacafe9c78c54b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e32abac0cb3e8d06b7d77213ee50ef5c60ff6263c444b7eeacafe9c78c54b3", kill_on_drop: false }`
[INFO] [stdout] e0e32abac0cb3e8d06b7d77213ee50ef5c60ff6263c444b7eeacafe9c78c54b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 883d361e2fb9ab4b24b09f5182a9d0632b92ca8231d06b2a1ae92564235d8830
[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" "883d361e2fb9ab4b24b09f5182a9d0632b92ca8231d06b2a1ae92564235d8830", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cstring v0.0.5
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling callback v0.5.3
[INFO] [stderr]    Compiling js v0.3.0
[INFO] [stderr]    Compiling web_canvas v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.16s
[INFO] running `Command { std: "docker" "inspect" "883d361e2fb9ab4b24b09f5182a9d0632b92ca8231d06b2a1ae92564235d8830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883d361e2fb9ab4b24b09f5182a9d0632b92ca8231d06b2a1ae92564235d8830", kill_on_drop: false }`
[INFO] [stdout] 883d361e2fb9ab4b24b09f5182a9d0632b92ca8231d06b2a1ae92564235d8830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] 500ec2cc3f03db79ebbcd6d8eed6876553fa775644f6aca0cdfd40e4749cc242
[INFO] running `Command { std: "docker" "start" "-a" "500ec2cc3f03db79ebbcd6d8eed6876553fa775644f6aca0cdfd40e4749cc242", kill_on_drop: false }`
[INFO] [stderr]    Compiling web_canvas v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "500ec2cc3f03db79ebbcd6d8eed6876553fa775644f6aca0cdfd40e4749cc242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "500ec2cc3f03db79ebbcd6d8eed6876553fa775644f6aca0cdfd40e4749cc242", kill_on_drop: false }`
[INFO] [stdout] 500ec2cc3f03db79ebbcd6d8eed6876553fa775644f6aca0cdfd40e4749cc242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] 2789093043ad9257b4ac82ffdd8b5354c3ffc10e4a0de00a04d80bffe4935a55
[INFO] running `Command { std: "docker" "start" "-a" "2789093043ad9257b4ac82ffdd8b5354c3ffc10e4a0de00a04d80bffe4935a55", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/web_canvas-241ff678e3a59de2)
[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/web_canvas-241ff678e3a59de2` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "2789093043ad9257b4ac82ffdd8b5354c3ffc10e4a0de00a04d80bffe4935a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2789093043ad9257b4ac82ffdd8b5354c3ffc10e4a0de00a04d80bffe4935a55", kill_on_drop: false }`
[INFO] [stdout] 2789093043ad9257b4ac82ffdd8b5354c3ffc10e4a0de00a04d80bffe4935a55