[INFO] cloning repository https://github.com/Astavie/fastnes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Astavie/fastnes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAstavie%2Ffastnes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAstavie%2Ffastnes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0892362b2c6b18710b135de589076ea5a412a17a
[INFO] checking Astavie/fastnes against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAstavie%2Ffastnes" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Astavie/fastnes 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 git repo https://github.com/Astavie/fastnes
[INFO] finished tweaking git repo https://github.com/Astavie/fastnes
[INFO] tweaked toml for git repo https://github.com/Astavie/fastnes written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Astavie/fastnes 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enumset v1.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7959a5dcb8c06559683b9a94afa091ca81f6990f1998a61a2e72095653acddee
[INFO] running `Command { std: "docker" "start" "-a" "7959a5dcb8c06559683b9a94afa091ca81f6990f1998a61a2e72095653acddee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7959a5dcb8c06559683b9a94afa091ca81f6990f1998a61a2e72095653acddee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7959a5dcb8c06559683b9a94afa091ca81f6990f1998a61a2e72095653acddee", kill_on_drop: false }`
[INFO] [stdout] 7959a5dcb8c06559683b9a94afa091ca81f6990f1998a61a2e72095653acddee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a0bc12c89c52fb78f403050d58acd1b2ca4e4a3b53e541ce09a24bb9fceb5cb9
[INFO] running `Command { std: "docker" "start" "-a" "a0bc12c89c52fb78f403050d58acd1b2ca4e4a3b53e541ce09a24bb9fceb5cb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling enumset_derive v0.8.1
[INFO] [stderr]     Checking enumset v1.1.2
[INFO] [stderr]     Checking fastnes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DummyPPU` is never constructed
[INFO] [stdout]   --> src/ppu.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct DummyPPU;
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "a0bc12c89c52fb78f403050d58acd1b2ca4e4a3b53e541ce09a24bb9fceb5cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0bc12c89c52fb78f403050d58acd1b2ca4e4a3b53e541ce09a24bb9fceb5cb9", kill_on_drop: false }`
[INFO] [stdout] a0bc12c89c52fb78f403050d58acd1b2ca4e4a3b53e541ce09a24bb9fceb5cb9
[INFO] checking Astavie/fastnes against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAstavie%2Ffastnes" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Astavie/fastnes 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 git repo https://github.com/Astavie/fastnes
[INFO] finished tweaking git repo https://github.com/Astavie/fastnes
[INFO] tweaked toml for git repo https://github.com/Astavie/fastnes written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Astavie/fastnes 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c711ffb920dd73cd5a1c86630d79346ef0e822bf61d5b02f1b70c2c36ac30e39
[INFO] running `Command { std: "docker" "start" "-a" "c711ffb920dd73cd5a1c86630d79346ef0e822bf61d5b02f1b70c2c36ac30e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c711ffb920dd73cd5a1c86630d79346ef0e822bf61d5b02f1b70c2c36ac30e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c711ffb920dd73cd5a1c86630d79346ef0e822bf61d5b02f1b70c2c36ac30e39", kill_on_drop: false }`
[INFO] [stdout] c711ffb920dd73cd5a1c86630d79346ef0e822bf61d5b02f1b70c2c36ac30e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c6cdfc205bab34cd6335762c9e7758d8c27ff59bafc39f6178897bb46dc1a876
[INFO] running `Command { std: "docker" "start" "-a" "c6cdfc205bab34cd6335762c9e7758d8c27ff59bafc39f6178897bb46dc1a876", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling enumset_derive v0.8.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/enumset_derive-0.8.1/src/lib.rs:212:21
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     error(expr.span(), "Enum discriminants must not be negative.")?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type for type parameter `T` declared on the function `error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/enumset_derive-0.8.1/src/lib.rs:283:13
[INFO] [stdout]     |
[INFO] [stdout] 283 | /             error(
[INFO] [stdout] 284 | |                 largest_discriminant_span,
[INFO] [stdout] 285 | |                 "`repr` is too small to contain the largest discriminant.",
[INFO] [stdout] 286 | |             )?;
[INFO] [stdout]     | |_____________^ cannot infer type for type parameter `T` declared on the function `error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enumset_derive` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "c6cdfc205bab34cd6335762c9e7758d8c27ff59bafc39f6178897bb46dc1a876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6cdfc205bab34cd6335762c9e7758d8c27ff59bafc39f6178897bb46dc1a876", kill_on_drop: false }`
[INFO] [stdout] c6cdfc205bab34cd6335762c9e7758d8c27ff59bafc39f6178897bb46dc1a876