[INFO] fetching crate gui 0.6.0...
[INFO] testing gui-0.6.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate gui 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gui 0.6.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gui 0.6.0
[INFO] finished tweaking crates.io crate gui 0.6.0
[INFO] tweaked toml for crates.io crate gui 0.6.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c769eabb5a7495c64bf52c305b2e29445b4b0c42b5536c2ba9fa61760bb1962d
[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" "c769eabb5a7495c64bf52c305b2e29445b4b0c42b5536c2ba9fa61760bb1962d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c769eabb5a7495c64bf52c305b2e29445b4b0c42b5536c2ba9fa61760bb1962d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c769eabb5a7495c64bf52c305b2e29445b4b0c42b5536c2ba9fa61760bb1962d", kill_on_drop: false }`
[INFO] [stdout] c769eabb5a7495c64bf52c305b2e29445b4b0c42b5536c2ba9fa61760bb1962d
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 99007f9dffb26750fafba20b4f34e1104ef0cf8013a33805f84c4f824f7a92bf
[INFO] running `Command { std: "docker" "start" "-a" "99007f9dffb26750fafba20b4f34e1104ef0cf8013a33805f84c4f824f7a92bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling gui-derive v0.6.0
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.83s
[INFO] running `Command { std: "docker" "inspect" "99007f9dffb26750fafba20b4f34e1104ef0cf8013a33805f84c4f824f7a92bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99007f9dffb26750fafba20b4f34e1104ef0cf8013a33805f84c4f824f7a92bf", kill_on_drop: false }`
[INFO] [stdout] 99007f9dffb26750fafba20b4f34e1104ef0cf8013a33805f84c4f824f7a92bf
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] e0219f2a3a18fdb288a33840e393b4c55eaec1445f5fa7524c304451d9e59d13
[INFO] running `Command { std: "docker" "start" "-a" "e0219f2a3a18fdb288a33840e393b4c55eaec1445f5fa7524c304451d9e59d13", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/test_ui.rs:107:42
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stdout]     |                                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "e0219f2a3a18fdb288a33840e393b4c55eaec1445f5fa7524c304451d9e59d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0219f2a3a18fdb288a33840e393b4c55eaec1445f5fa7524c304451d9e59d13", kill_on_drop: false }`
[INFO] [stdout] e0219f2a3a18fdb288a33840e393b4c55eaec1445f5fa7524c304451d9e59d13
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86c1c457660cb06bf10ae3cf42db014938096255ad44c4c9682af2d8ec44ab94
[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" "86c1c457660cb06bf10ae3cf42db014938096255ad44c4c9682af2d8ec44ab94", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/test_ui.rs:107:42
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stderr]     |                                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stderr]     |                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `gui` (test "test_ui") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gui-ff3713a97d593322)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_events.rs (/opt/rustwide/target/debug/deps/test_events-5fef9e8dac43397f)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test event_handling_with_focus ... ok
[INFO] [stdout] test events_bubble_up_when_unhandled ... ok
[INFO] [stdout] test hook_events_return_value ... ok
[INFO] [stdout] test targeted_event_returned_on_no_focus ... ok
[INFO] [stdout] test hook_events_handler ... ok
[INFO] [stdout] test hook_can_send_message ... ok
[INFO] [stdout] test hook_emitted_events ... ok
[INFO] [stdout] test event_propagation ... ok
[INFO] [stdout] test hook_event_merging - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_message.rs (/opt/rustwide/target/debug/deps/test_message-7a80cf9c29cea84c)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test call_message ... ok
[INFO] [stdout] test no_handler ... ok
[INFO] [stdout] test forward_message ... ok
[INFO] [stdout] test repeated_send_receive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_render.rs (/opt/rustwide/target/debug/deps/test_render-096e9d5dcc27833c)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test bounding_box_is_properly_sized ... ok
[INFO] [stdout] test render_honors_visibility_flag ... ok
[INFO] [stdout] test render_is_called_for_each_widget ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_ui.rs (/opt/rustwide/target/debug/deps/test_ui-0638527a2167214c)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test debug_format ... ok
[INFO] [stdout] test correct_ids ... ok
[INFO] [stdout] test creation_order_is_child_order ... ok
[INFO] [stdout] test event_based_widget_creation ... ok
[INFO] [stdout] test focus_makes_widget_visible ... ok
[INFO] [stdout] test focus_changes_child_order ... ok
[INFO] [stdout] test focus_widget ... ok
[INFO] [stdout] test hide_changes_child_order ... ok
[INFO] [stdout] test no_initial_focus ... ok
[INFO] [stdout] test recursive_widget_creation ... ok
[INFO] [stdout] test repeated_show_preserves_order ... ok
[INFO] [stdout] test recursive_widget_operations ... ok
[INFO] [stdout] test visibility_fun ... ok
[INFO] [stdout] test moving_widget_creation ... ok
[INFO] [stdout] test repeated_hide_preserves_order ... ok
[INFO] [stdout] test incorrect_widget_id - should panic ... ok
[INFO] [stdout] test share_ids_between_ui_objects - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gui
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/renderer.rs - renderer::Renderer::render (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "86c1c457660cb06bf10ae3cf42db014938096255ad44c4c9682af2d8ec44ab94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c1c457660cb06bf10ae3cf42db014938096255ad44c4c9682af2d8ec44ab94", kill_on_drop: false }`
[INFO] [stdout] 86c1c457660cb06bf10ae3cf42db014938096255ad44c4c9682af2d8ec44ab94