[INFO] fetching crate web_canvas 0.0.7...
[INFO] testing web_canvas-0.0.7 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate web_canvas 0.0.7 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate web_canvas 0.0.7 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cad5a6f1913da3dc44a9d1cac59a95247fb793c0aa322e44e4683eaea6fce90
[INFO] running `Command { std: "docker" "start" "-a" "4cad5a6f1913da3dc44a9d1cac59a95247fb793c0aa322e44e4683eaea6fce90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cad5a6f1913da3dc44a9d1cac59a95247fb793c0aa322e44e4683eaea6fce90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cad5a6f1913da3dc44a9d1cac59a95247fb793c0aa322e44e4683eaea6fce90", kill_on_drop: false }`
[INFO] [stdout] 4cad5a6f1913da3dc44a9d1cac59a95247fb793c0aa322e44e4683eaea6fce90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8df6e1a1a395186c0f9eb49f6f6c166336e59338f126970c9b5faa03911c5c41
[INFO] running `Command { std: "docker" "start" "-a" "8df6e1a1a395186c0f9eb49f6f6c166336e59338f126970c9b5faa03911c5c41", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling cty v0.2.1
[INFO] [stderr]    Compiling cstring v0.0.5
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling spin v0.9.0
[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 1.49s
[INFO] running `Command { std: "docker" "inspect" "8df6e1a1a395186c0f9eb49f6f6c166336e59338f126970c9b5faa03911c5c41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df6e1a1a395186c0f9eb49f6f6c166336e59338f126970c9b5faa03911c5c41", kill_on_drop: false }`
[INFO] [stdout] 8df6e1a1a395186c0f9eb49f6f6c166336e59338f126970c9b5faa03911c5c41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6b7e86483ceaae8b1c4e01ebc14f43db3f93b68d19c40f383e412c1e473e170
[INFO] running `Command { std: "docker" "start" "-a" "a6b7e86483ceaae8b1c4e01ebc14f43db3f93b68d19c40f383e412c1e473e170", kill_on_drop: false }`
[INFO] [stderr]    Compiling web_canvas v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "a6b7e86483ceaae8b1c4e01ebc14f43db3f93b68d19c40f383e412c1e473e170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b7e86483ceaae8b1c4e01ebc14f43db3f93b68d19c40f383e412c1e473e170", kill_on_drop: false }`
[INFO] [stdout] a6b7e86483ceaae8b1c4e01ebc14f43db3f93b68d19c40f383e412c1e473e170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2aa98c0261da23177d25c0d5a93acc02bda2d18184ebc8c2c4bee2277d1b6721
[INFO] running `Command { std: "docker" "start" "-a" "2aa98c0261da23177d25c0d5a93acc02bda2d18184ebc8c2c4bee2277d1b6721", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/web_canvas-882d852f9b5e5617)
[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-882d852f9b5e5617` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "2aa98c0261da23177d25c0d5a93acc02bda2d18184ebc8c2c4bee2277d1b6721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa98c0261da23177d25c0d5a93acc02bda2d18184ebc8c2c4bee2277d1b6721", kill_on_drop: false }`
[INFO] [stdout] 2aa98c0261da23177d25c0d5a93acc02bda2d18184ebc8c2c4bee2277d1b6721