[INFO] fetching crate rustzx-core 0.16.0...
[INFO] checking rustzx-core-0.16.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rustzx-core 0.16.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rustzx-core 0.16.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustzx-core 0.16.0
[INFO] finished tweaking crates.io crate rustzx-core 0.16.0
[INFO] tweaked toml for crates.io crate rustzx-core 0.16.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding darling v0.10.2 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_core v0.10.2 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_macro v0.10.2 (latest: v0.20.8)
[INFO] [stderr]       Adding from_variants v0.6.0 (latest: v1.0.2)
[INFO] [stderr]       Adding from_variants_impl v0.6.0 (latest: v1.0.2)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding spin v0.5.2 (latest: v0.9.8)
[INFO] [stderr]       Adding strsim v0.9.3 (latest: v0.11.1)
[INFO] [stderr]       Adding strum v0.22.0 (latest: v0.26.2)
[INFO] [stderr]       Adding strum_macros v0.22.0 (latest: v0.26.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aym v0.16.0
[INFO] [stderr]   Downloaded strum v0.22.0
[INFO] [stderr]   Downloaded displaydoc v0.2.4
[INFO] [stderr]   Downloaded enum_dispatch v0.3.13
[INFO] [stderr]   Downloaded rustzx-z80 v0.16.0
[INFO] [stderr]   Downloaded strum_macros v0.22.0
[INFO] [stderr]   Downloaded from_variants_impl v0.6.0
[INFO] [stderr]   Downloaded from_variants v0.6.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72f0c008c97594d19fde9b014c49f568be27ab743bd5856f214ec075ac469845
[INFO] running `Command { std: "docker" "start" "-a" "72f0c008c97594d19fde9b014c49f568be27ab743bd5856f214ec075ac469845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72f0c008c97594d19fde9b014c49f568be27ab743bd5856f214ec075ac469845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f0c008c97594d19fde9b014c49f568be27ab743bd5856f214ec075ac469845", kill_on_drop: false }`
[INFO] [stdout] 72f0c008c97594d19fde9b014c49f568be27ab743bd5856f214ec075ac469845
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b39aeac27fdd3a81900a1119928d8b5fead18ba21c0696b0668331ce2103fd9
[INFO] running `Command { std: "docker" "start" "-a" "1b39aeac27fdd3a81900a1119928d8b5fead18ba21c0696b0668331ce2103fd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking rustzx-z80 v0.16.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling from_variants_impl v0.6.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]    Compiling displaydoc v0.2.4
[INFO] [stderr]     Checking from_variants v0.6.0
[INFO] [stderr]     Checking rustzx-core v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "1b39aeac27fdd3a81900a1119928d8b5fead18ba21c0696b0668331ce2103fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b39aeac27fdd3a81900a1119928d8b5fead18ba21c0696b0668331ce2103fd9", kill_on_drop: false }`
[INFO] [stdout] 1b39aeac27fdd3a81900a1119928d8b5fead18ba21c0696b0668331ce2103fd9
[INFO] checking rustzx-core-0.16.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate rustzx-core 0.16.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rustzx-core 0.16.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustzx-core 0.16.0
[INFO] finished tweaking crates.io crate rustzx-core 0.16.0
[INFO] tweaked toml for crates.io crate rustzx-core 0.16.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 869a920f4e6bf2d176cfef95a2787756a16387c5d4ada005d8b6affa8118bc5a
[INFO] running `Command { std: "docker" "start" "-a" "869a920f4e6bf2d176cfef95a2787756a16387c5d4ada005d8b6affa8118bc5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "869a920f4e6bf2d176cfef95a2787756a16387c5d4ada005d8b6affa8118bc5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "869a920f4e6bf2d176cfef95a2787756a16387c5d4ada005d8b6affa8118bc5a", kill_on_drop: false }`
[INFO] [stdout] 869a920f4e6bf2d176cfef95a2787756a16387c5d4ada005d8b6affa8118bc5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 952d41dfd42ba73d0128d5ca0508804aca777d0e2e67f19a80597d8bc08afb42
[INFO] running `Command { std: "docker" "start" "-a" "952d41dfd42ba73d0128d5ca0508804aca777d0e2e67f19a80597d8bc08afb42", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking rustzx-z80 v0.16.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling from_variants_impl v0.6.0
[INFO] [stderr]    Compiling displaydoc v0.2.4
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking from_variants v0.6.0
[INFO] [stderr]     Checking rustzx-core v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/zx/controller.rs:255:13
[INFO] [stdout]     |
[INFO] [stdout] 255 | /             if clocks % 2 == 0 {
[INFO] [stdout] 256 | |                 return self.memory.read(bitmap_line_addr(row) + col as u16);
[INFO] [stdout] 257 | |             } else {
[INFO] [stdout] 258 | |                 let byte = (row / 8) * 32 + col;
[INFO] [stdout] 259 | |                 return self.memory.read(0x5800 + byte as u16);
[INFO] [stdout] 260 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/zx/controller.rs:255:13
[INFO] [stdout]     |
[INFO] [stdout] 255 | /             if clocks % 2 == 0 {
[INFO] [stdout] 256 | |                 return self.memory.read(bitmap_line_addr(row) + col as u16);
[INFO] [stdout] 257 | |             } else {
[INFO] [stdout] 258 | |                 let byte = (row / 8) * 32 + col;
[INFO] [stdout] 259 | |                 return self.memory.read(0x5800 + byte as u16);
[INFO] [stdout] 260 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustzx-core` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustzx-core` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "952d41dfd42ba73d0128d5ca0508804aca777d0e2e67f19a80597d8bc08afb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952d41dfd42ba73d0128d5ca0508804aca777d0e2e67f19a80597d8bc08afb42", kill_on_drop: false }`
[INFO] [stdout] 952d41dfd42ba73d0128d5ca0508804aca777d0e2e67f19a80597d8bc08afb42