[INFO] cloning repository https://github.com/rust-qt/examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-qt/examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-qt%2Fexamples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-qt%2Fexamples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8109f3451da8268d8f2432b2220386ebb8889e10
[INFO] testing rust-qt/examples against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-qt%2Fexamples" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-qt/examples on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rust-qt/examples
[INFO] finished tweaking git repo https://github.com/rust-qt/examples
[INFO] tweaked toml for git repo https://github.com/rust-qt/examples written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-qt/examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term-painter v0.2.4
[INFO] [stderr]   Downloaded qt_ritual_build v0.5.0
[INFO] [stderr]   Downloaded failure v0.1.7
[INFO] [stderr]   Downloaded qt_qml v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.12
[INFO] [stderr]   Downloaded qt_ui_tools v0.5.0
[INFO] [stderr]   Downloaded cpp_core v0.6.0
[INFO] [stderr]   Downloaded ritual_build v0.4.0
[INFO] [stderr]   Downloaded qt_3d_core v0.5.0
[INFO] [stderr]   Downloaded qt_3d_logic v0.5.0
[INFO] [stderr]   Downloaded serde v1.0.105
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded bincode v1.2.1
[INFO] [stderr]   Downloaded serde_derive v1.0.105
[INFO] [stderr]   Downloaded qt_ritual_common v0.4.0
[INFO] [stderr]   Downloaded pathdiff v0.1.0
[INFO] [stderr]   Downloaded ritual_common v0.4.0
[INFO] [stderr]   Downloaded qt_macros v0.1.0
[INFO] [stderr]   Downloaded qt_3d_input v0.5.0
[INFO] [stderr]   Downloaded qt_charts v0.5.0
[INFO] [stderr]   Downloaded qt_3d_render v0.5.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.34
[INFO] [stderr]   Downloaded qt_3d_extras v0.5.0
[INFO] [stderr]   Downloaded qt_widgets v0.5.0
[INFO] [stderr]   Downloaded qt_core v0.5.0
[INFO] [stderr]   Downloaded qt_gui v0.5.0
[INFO] [stderr]   Downloaded dunce v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b893499a09686d938fc0e1408710306d1fb45e493e668c5745fbd513712b99e
[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" "4b893499a09686d938fc0e1408710306d1fb45e493e668c5745fbd513712b99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b893499a09686d938fc0e1408710306d1fb45e493e668c5745fbd513712b99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b893499a09686d938fc0e1408710306d1fb45e493e668c5745fbd513712b99e", kill_on_drop: false }`
[INFO] [stdout] 4b893499a09686d938fc0e1408710306d1fb45e493e668c5745fbd513712b99e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] ddaf94b1a6a8d1b888fd1e78c171ba484781c9eeef746ff974baca29e9e4a7cf
[INFO] running `Command { std: "docker" "start" "-a" "ddaf94b1a6a8d1b888fd1e78c171ba484781c9eeef746ff974baca29e9e4a7cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling dunce v1.0.0
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling shell-words v0.1.0
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling cpp_core v0.6.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling qt_macros v0.1.0
[INFO] [stderr]    Compiling ritual_common v0.4.0
[INFO] [stderr]    Compiling ritual_build v0.4.0
[INFO] [stderr]    Compiling qt_ritual_common v0.4.0
[INFO] [stderr]    Compiling qt_ritual_build v0.5.0
[INFO] [stderr]    Compiling qt_core v0.5.0
[INFO] [stderr]    Compiling qt_gui v0.5.0
[INFO] [stderr]    Compiling qt_widgets v0.5.0
[INFO] [stderr]    Compiling qt_3d_core v0.5.0
[INFO] [stderr]    Compiling qt_3d_logic v0.5.0
[INFO] [stderr]    Compiling qt_3d_input v0.5.0
[INFO] [stderr]    Compiling qt_3d_render v0.5.0
[INFO] [stderr]    Compiling qt_ui_tools v0.5.0
[INFO] [stderr]    Compiling qt_charts v0.5.0
[INFO] [stderr]    Compiling qt_3d_extras v0.5.0
[INFO] [stderr]    Compiling qt_qml v0.5.0
[INFO] [stderr]    Compiling hello_qml v0.0.0 (/opt/rustwide/workdir/qml/hello_qml)
[INFO] [stderr]    Compiling todo_list v0.0.0 (/opt/rustwide/workdir/widgets/todo_list)
[INFO] [stderr] error: could not compile `todo_list`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 widgets/todo_list/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=9afd56edf2fc2dba -C extra-filename=-9afd56edf2fc2dba --out-dir /opt/rustwide/target/debug/build/todo_list-9afd56edf2fc2dba -L dependency=/opt/rustwide/target/debug/deps --extern qt_ritual_build=/opt/rustwide/target/debug/deps/libqt_ritual_build-904fc1251eb9ac76.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-acaec5cae4725b16/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ddaf94b1a6a8d1b888fd1e78c171ba484781c9eeef746ff974baca29e9e4a7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddaf94b1a6a8d1b888fd1e78c171ba484781c9eeef746ff974baca29e9e4a7cf", kill_on_drop: false }`
[INFO] [stdout] ddaf94b1a6a8d1b888fd1e78c171ba484781c9eeef746ff974baca29e9e4a7cf