[INFO] fetching crate endbasic-rpi 0.10.0...
[INFO] checking endbasic-rpi-0.10.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate endbasic-rpi 0.10.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate endbasic-rpi 0.10.0 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 endbasic-rpi 0.10.0
[INFO] finished tweaking crates.io crate endbasic-rpi 0.10.0
[INFO] tweaked toml for crates.io crate endbasic-rpi 0.10.0 written to /workspace/builds/worker-3-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 58 packages
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.2.0)
[INFO] [stderr]       Adding async-recursion v0.3.2 (latest: v1.1.0)
[INFO] [stderr]       Adding endian-type v0.1.2 (latest: v0.2.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.2.0)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding rppal v0.11.3 (latest: v0.17.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 rppal v0.11.3
[INFO] [stderr]   Downloaded endbasic-core v0.10.0
[INFO] [stderr]   Downloaded endbasic-std v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6d450047a316ec21a3a41ff785dbadbec8f2c1cba0c3254f42b451e8b58c0687
[INFO] running `Command { std: "docker" "start" "-a" "6d450047a316ec21a3a41ff785dbadbec8f2c1cba0c3254f42b451e8b58c0687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d450047a316ec21a3a41ff785dbadbec8f2c1cba0c3254f42b451e8b58c0687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d450047a316ec21a3a41ff785dbadbec8f2c1cba0c3254f42b451e8b58c0687", kill_on_drop: false }`
[INFO] [stdout] 6d450047a316ec21a3a41ff785dbadbec8f2c1cba0c3254f42b451e8b58c0687
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b9f1fb4a2b895403eb20f53766e942acdfe1c0e1cfda41e367d145b8ecf86e66
[INFO] running `Command { std: "docker" "start" "-a" "b9f1fb4a2b895403eb20f53766e942acdfe1c0e1cfda41e367d145b8ecf86e66", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking endbasic-core v0.10.0
[INFO] [stderr]     Checking endbasic-std v0.10.0
[INFO] [stderr]     Checking endbasic-rpi v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.33s
[INFO] running `Command { std: "docker" "inspect" "b9f1fb4a2b895403eb20f53766e942acdfe1c0e1cfda41e367d145b8ecf86e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f1fb4a2b895403eb20f53766e942acdfe1c0e1cfda41e367d145b8ecf86e66", kill_on_drop: false }`
[INFO] [stdout] b9f1fb4a2b895403eb20f53766e942acdfe1c0e1cfda41e367d145b8ecf86e66
[INFO] checking endbasic-rpi-0.10.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate endbasic-rpi 0.10.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate endbasic-rpi 0.10.0 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 endbasic-rpi 0.10.0
[INFO] finished tweaking crates.io crate endbasic-rpi 0.10.0
[INFO] tweaked toml for crates.io crate endbasic-rpi 0.10.0 written to /workspace/builds/worker-3-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2c5043fca9114f8c6d6b58c59fb0ea072188b67a3cacbaeb374f5361e2400433
[INFO] running `Command { std: "docker" "start" "-a" "2c5043fca9114f8c6d6b58c59fb0ea072188b67a3cacbaeb374f5361e2400433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c5043fca9114f8c6d6b58c59fb0ea072188b67a3cacbaeb374f5361e2400433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5043fca9114f8c6d6b58c59fb0ea072188b67a3cacbaeb374f5361e2400433", kill_on_drop: false }`
[INFO] [stdout] 2c5043fca9114f8c6d6b58c59fb0ea072188b67a3cacbaeb374f5361e2400433
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 00969ced0561efb6dbe2db0649e7f396a71f276bc3b64b7acc44b87a61cb0e12
[INFO] running `Command { std: "docker" "start" "-a" "00969ced0561efb6dbe2db0649e7f396a71f276bc3b64b7acc44b87a61cb0e12", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.13.0/src/future.rs:469:27
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                           ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err::<F, _>(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                                  ++++++++
[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 `futures-lite` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "00969ced0561efb6dbe2db0649e7f396a71f276bc3b64b7acc44b87a61cb0e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00969ced0561efb6dbe2db0649e7f396a71f276bc3b64b7acc44b87a61cb0e12", kill_on_drop: false }`
[INFO] [stdout] 00969ced0561efb6dbe2db0649e7f396a71f276bc3b64b7acc44b87a61cb0e12