[INFO] fetching crate mech-notebook 0.2.47...
[INFO] testing mech-notebook-0.2.47 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mech-notebook 0.2.47 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mech-notebook 0.2.47
[INFO] finished tweaking crates.io crate mech-notebook 0.2.47
[INFO] tweaked toml for crates.io crate mech-notebook 0.2.47 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mech-notebook 0.2.47 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mech-notebook 0.2.47 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tabled_derive v0.10.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.29
[INFO] [stderr]   Downloaded nt-time v0.8.1
[INFO] [stderr]   Downloaded zbus_xml v4.0.0
[INFO] [stderr]   Downloaded cc v1.2.26
[INFO] [stderr]   Downloaded zbus-lockstep-macros v0.4.4
[INFO] [stderr]   Downloaded nalgebra-macros v0.2.2
[INFO] [stderr]   Downloaded bit-vec v0.7.0
[INFO] [stderr]   Downloaded accesskit_macos v0.18.1
[INFO] [stderr]   Downloaded egui-wgpu v0.31.1
[INFO] [stderr]   Downloaded type-map v0.5.1
[INFO] [stderr]   Downloaded accesskit_winit v0.23.1
[INFO] [stderr]   Downloaded accesskit_windows v0.24.1
[INFO] [stderr]   Downloaded wgpu-types v24.0.0
[INFO] [stderr]   Downloaded atspi-common v0.6.0
[INFO] [stderr]   Downloaded epaint v0.31.1
[INFO] [stderr]   Downloaded eframe v0.31.1
[INFO] [stderr]   Downloaded async-compression v0.4.23
[INFO] [stderr]   Downloaded wgpu v24.0.5
[INFO] [stderr]   Downloaded quick-xml v0.30.0
[INFO] [stderr]   Downloaded clap_builder v4.5.39
[INFO] [stderr]   Downloaded wgpu-core v24.0.5
[INFO] [stderr]   Downloaded reqwest v0.12.19
[INFO] [stderr]   Downloaded tabled v0.18.0
[INFO] [stderr]   Downloaded mech v0.2.47
[INFO] [stderr]   Downloaded wgpu-hal v24.0.4
[INFO] [stderr]   Downloaded egui v0.31.1
[INFO] [stderr]   Downloaded mech-io v0.2.47
[INFO] [stderr]   Downloaded mech-core v0.2.47
[INFO] [stderr]   Downloaded clap v4.5.39
[INFO] [stderr]   Downloaded mech-interpreter v0.2.47
[INFO] [stderr]   Downloaded notify v8.0.0
[INFO] [stderr]   Downloaded webbrowser v1.0.5
[INFO] [stderr]   Downloaded emath v0.31.1
[INFO] [stderr]   Downloaded windows-registry v0.5.2
[INFO] [stderr]   Downloaded gpu-descriptor v0.3.2
[INFO] [stderr]   Downloaded winit v0.30.11
[INFO] [stderr]   Downloaded sevenz-rust v0.6.1
[INFO] [stderr]   Downloaded atspi-connection v0.6.0
[INFO] [stderr]   Downloaded zbus-lockstep v0.4.4
[INFO] [stderr]   Downloaded naga v24.0.0
[INFO] [stderr]   Downloaded epaint_default_fonts v0.31.1
[INFO] [stderr]   Downloaded accesskit_unix v0.13.1
[INFO] [stderr]   Downloaded immutable-chunkmap v2.0.6
[INFO] [stderr]   Downloaded mech-combinatorics v0.2.47
[INFO] [stderr]   Downloaded bit-set v0.6.0
[INFO] [stderr]   Downloaded accesskit_atspi_common v0.10.1
[INFO] [stderr]   Downloaded atspi-proxies v0.6.0
[INFO] [stderr]   Downloaded accesskit_consumer v0.26.0
[INFO] [stderr]   Downloaded egui-winit v0.31.1
[INFO] [stderr]   Downloaded mech-math v0.2.47
[INFO] [stderr]   Downloaded mech-stats v0.2.47
[INFO] [stderr]   Downloaded filetime_creation v0.2.0
[INFO] [stderr]   Downloaded lzma-rust v0.1.7
[INFO] [stderr]   Downloaded atspi v0.22.0
[INFO] [stderr]   Downloaded mech-logic v0.2.47
[INFO] [stderr]   Downloaded mech-matrix v0.2.47
[INFO] [stderr]   Downloaded mech-range v0.2.47
[INFO] [stderr]   Downloaded nom-unicode v0.4.0
[INFO] [stderr]   Downloaded papergrid v0.14.0
[INFO] [stderr]   Downloaded egui_glow v0.31.1
[INFO] [stderr]   Downloaded ecolor v0.31.1
[INFO] [stderr]   Downloaded metal v0.31.0
[INFO] [stderr]   Downloaded mech-syntax v0.2.47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 089f4a1f0702d3dc8360a348efddeeefd49a742d3dd3aedadd733744822c1631
[INFO] running `Command { std: "docker" "start" "-a" "089f4a1f0702d3dc8360a348efddeeefd49a742d3dd3aedadd733744822c1631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "089f4a1f0702d3dc8360a348efddeeefd49a742d3dd3aedadd733744822c1631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089f4a1f0702d3dc8360a348efddeeefd49a742d3dd3aedadd733744822c1631", kill_on_drop: false }`
[INFO] [stdout] 089f4a1f0702d3dc8360a348efddeeefd49a742d3dd3aedadd733744822c1631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e3dbd1ece5f01154951b6c79132874db2fa401141cce18b6d1daceb5e22fcc3
[INFO] running `Command { std: "docker" "start" "-a" "5e3dbd1ece5f01154951b6c79132874db2fa401141cce18b6d1daceb5e22fcc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
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[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]    Compiling rustix v1.0.7
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[INFO] [stderr]    Compiling async-fs v2.1.2
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[INFO] [stderr]    Compiling nalgebra v0.33.2
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[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stderr]    Compiling calloop v0.13.0
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[INFO] [stderr]    Compiling cursor-icon v1.2.0
[INFO] [stderr]    Compiling xkeysym v0.2.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.19.2
[INFO] [stderr]    Compiling xcursor v0.3.8
[INFO] [stderr]    Compiling wayland-cursor v0.31.10
[INFO] [stderr]    Compiling calloop-wayland-source v0.3.0
[INFO] [stderr]    Compiling wayland-csd-frame v0.3.0
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling memmap2 v0.9.5
[INFO] [stderr]    Compiling strict-num v0.1.1
[INFO] [stderr]    Compiling tiny-skia-path v0.11.4
[INFO] [stderr]    Compiling as-raw-xcb-connection v1.0.1
[INFO] [stderr]    Compiling x11rb-protocol v0.13.1
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling zbus v4.4.0
[INFO] [stderr]    Compiling tiny-skia v0.11.4
[INFO] [stderr]    Compiling immutable-chunkmap v2.0.6
[INFO] [stderr]    Compiling emath v0.31.1
[INFO] [stderr]    Compiling winit v0.30.11
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling ecolor v0.31.1
[INFO] [stderr]    Compiling wayland-protocols-wlr v0.3.8
[INFO] [stderr]    Compiling wayland-protocols-plasma v0.3.8
[INFO] [stderr]    Compiling accesskit_consumer v0.26.0
[INFO] [stderr]    Compiling mech-core v0.2.47
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mech-core-0.2.47/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(concat_idents)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.90.0; see <https://github.com/rust-lang/rust/pull/142704> for more information
[INFO] [stdout]   = note: use the `${concat(..)}` metavariable expression instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sctk-adwaita v0.10.1
[INFO] [stderr]    Compiling xkbcommon-dl v0.4.2
[INFO] [stderr]    Compiling h2 v0.4.10
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mech-core-0.2.47/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(get_mut_unchecked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mech-core-0.2.47/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(concat_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mech-core-0.2.47/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(iter_intersperse)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mech-core-0.2.47/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(extract_if)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mech-core-0.2.47/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(step_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling glutin_egl_sys v0.7.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.6.1
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling dpi v0.1.2
[INFO] [stderr]    Compiling smol_str v0.2.2
[INFO] [stderr]    Compiling epaint_default_fonts v0.31.1
[INFO] [stderr]    Compiling atspi-common v0.6.0
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling epaint v0.31.1
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr] error: could not compile `zbus` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.90.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name zbus --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-4.4.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="async-executor"' --cfg 'feature="async-fs"' --cfg 'feature="async-io"' --cfg 'feature="async-lock"' --cfg 'feature="async-task"' --cfg 'feature="blocking"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("async-executor", "async-fs", "async-io", "async-lock", "async-task", "blocking", "bus-impl", "chrono", "default", "heapless", "option-as-array", "p2p", "time", "tokio", "tokio-vsock", "url", "uuid", "vsock"))' -C metadata=c6cbd4e2a949e4ce -C extra-filename=-2205ac3f7897bc9d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_broadcast=/opt/rustwide/target/debug/deps/libasync_broadcast-1760da63529fc8fc.rmeta --extern async_executor=/opt/rustwide/target/debug/deps/libasync_executor-c687ff006dde80cc.rmeta --extern async_fs=/opt/rustwide/target/debug/deps/libasync_fs-8953ec93d8c9c9d5.rmeta --extern async_io=/opt/rustwide/target/debug/deps/libasync_io-d349280925ee490a.rmeta --extern async_lock=/opt/rustwide/target/debug/deps/libasync_lock-735ba17206af7e6b.rmeta --extern async_task=/opt/rustwide/target/debug/deps/libasync_task-5f2c5f54f23daafe.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-0ccba553d0e39b16.so --extern blocking=/opt/rustwide/target/debug/deps/libblocking-bf4a10507de5ed3d.rmeta --extern enumflags2=/opt/rustwide/target/debug/deps/libenumflags2-2ca1356d99637b13.rmeta --extern event_listener=/opt/rustwide/target/debug/deps/libevent_listener-78a909f8ec4b1348.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-cfb76736a56aefc1.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-1a3e7f43fc6dbf4d.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-2f0a61c848d345a3.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-ca926d8cc80c7033.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-78b8e6f8de7528b2.rmeta --extern ordered_stream=/opt/rustwide/target/debug/deps/libordered_stream-f77e0453c1241967.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0244073fdfe69551.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c6c4770d9fc2dc75.rmeta --extern serde_repr=/opt/rustwide/target/debug/deps/libserde_repr-605ab6286b4ac734.so --extern sha1=/opt/rustwide/target/debug/deps/libsha1-9a26e6d34e4d220c.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-55654f80d66897c1.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-a009a26f210f2f42.rmeta --extern xdg_home=/opt/rustwide/target/debug/deps/libxdg_home-784047acd134c366.rmeta --extern zbus_macros=/opt/rustwide/target/debug/deps/libzbus_macros-a75f23ef4d882556.so --extern zbus_names=/opt/rustwide/target/debug/deps/libzbus_names-e0832961943b8816.rmeta --extern zvariant=/opt/rustwide/target/debug/deps/libzvariant-bee1c8a1887c1cbf.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mech-core` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "5e3dbd1ece5f01154951b6c79132874db2fa401141cce18b6d1daceb5e22fcc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3dbd1ece5f01154951b6c79132874db2fa401141cce18b6d1daceb5e22fcc3", kill_on_drop: false }`
[INFO] [stdout] 5e3dbd1ece5f01154951b6c79132874db2fa401141cce18b6d1daceb5e22fcc3