[INFO] fetching crate blocks_iterator 1.0.4...
[INFO] checking blocks_iterator-1.0.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate blocks_iterator 1.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate blocks_iterator 1.0.4 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 blocks_iterator 1.0.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate blocks_iterator 1.0.4
[INFO] tweaked toml for crates.io crate blocks_iterator 1.0.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate blocks_iterator 1.0.4 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.44
[INFO] [stderr]   Downloaded thiserror v1.0.44
[INFO] [stderr]   Downloaded cc v1.0.81
[INFO] [stderr]   Downloaded tempfile v3.7.0
[INFO] [stderr]   Downloaded target-lexicon v0.12.11
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded serde v1.0.181
[INFO] [stderr]   Downloaded rocksdb v0.18.0
[INFO] [stderr]   Downloaded redb v1.0.5
[INFO] [stderr]   Downloaded bitcoin v0.30.1
[INFO] [stderr]   Downloaded serde_derive v1.0.181
[INFO] [stderr]   Downloaded bitcoinconsensus v0.20.2-0.5.0
[INFO] [stderr]   Downloaded bitcoinconsensus v0.19.2-0.4.1
[INFO] [stderr]   Downloaded regex-automata v0.3.4
[INFO] [stderr]   Downloaded rustix v0.38.6
[INFO] [stderr]   Downloaded blake3 v1.4.1
[INFO] [stderr]   Downloaded bindgen v0.65.1
[INFO] [stderr]   Downloaded prettyplease v0.2.12
[INFO] [stderr]   Downloaded bitcoin_slices v0.6.2
[INFO] [stderr]   Downloaded librocksdb-sys v0.6.3+6.28.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6d5ba8330aea042307823703eb82a06b3a5228d65dd7aba03ececaf9242194b0
[INFO] running `Command { std: "docker" "start" "-a" "6d5ba8330aea042307823703eb82a06b3a5228d65dd7aba03ececaf9242194b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d5ba8330aea042307823703eb82a06b3a5228d65dd7aba03ececaf9242194b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d5ba8330aea042307823703eb82a06b3a5228d65dd7aba03ececaf9242194b0", kill_on_drop: false }`
[INFO] [stdout] 6d5ba8330aea042307823703eb82a06b3a5228d65dd7aba03ececaf9242194b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c61b67c8671f100177f5871f3b992a1abea509ec3cd16879945132e91eb9eba5
[INFO] running `Command { std: "docker" "start" "-a" "c61b67c8671f100177f5871f3b992a1abea509ec3cd16879945132e91eb9eba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling bitcoin-private v0.1.0
[INFO] [stderr]    Compiling serde v1.0.181
[INFO] [stderr]    Compiling serde_derive v1.0.181
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]    Compiling bitcoin v0.30.1
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]    Compiling rustix v0.38.6
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking regex-automata v0.3.4
[INFO] [stderr]    Compiling cc v1.0.81
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking is-terminal v0.4.7
[INFO] [stderr]    Compiling secp256k1-sys v0.8.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tempfile v3.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]     Checking bitcoin_hashes v0.12.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking secp256k1 v0.27.0
[INFO] [stderr]     Checking bitcoin_slices v0.6.2
[INFO] [stderr]     Checking blocks_iterator v1.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.78s
[INFO] running `Command { std: "docker" "inspect" "c61b67c8671f100177f5871f3b992a1abea509ec3cd16879945132e91eb9eba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61b67c8671f100177f5871f3b992a1abea509ec3cd16879945132e91eb9eba5", kill_on_drop: false }`
[INFO] [stdout] c61b67c8671f100177f5871f3b992a1abea509ec3cd16879945132e91eb9eba5
[INFO] checking blocks_iterator-1.0.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate blocks_iterator 1.0.4 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate blocks_iterator 1.0.4 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 blocks_iterator 1.0.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate blocks_iterator 1.0.4
[INFO] tweaked toml for crates.io crate blocks_iterator 1.0.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate blocks_iterator 1.0.4 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 11ab8a33f519fe6d81f4524b606e0ef79cc9b2ab0a347f85f1bd7a704715fec8
[INFO] running `Command { std: "docker" "start" "-a" "11ab8a33f519fe6d81f4524b606e0ef79cc9b2ab0a347f85f1bd7a704715fec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11ab8a33f519fe6d81f4524b606e0ef79cc9b2ab0a347f85f1bd7a704715fec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ab8a33f519fe6d81f4524b606e0ef79cc9b2ab0a347f85f1bd7a704715fec8", kill_on_drop: false }`
[INFO] [stdout] 11ab8a33f519fe6d81f4524b606e0ef79cc9b2ab0a347f85f1bd7a704715fec8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a47f4b0e523540559b32dd40f2e2fc6544a1255d27a7558f1b106cd151330f90
[INFO] running `Command { std: "docker" "start" "-a" "a47f4b0e523540559b32dd40f2e2fc6544a1255d27a7558f1b106cd151330f90", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.181
[INFO] [stderr]    Compiling bitcoin-private v0.1.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.181
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling bitcoin v0.30.1
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.181/src/lib_precompiled.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a47f4b0e523540559b32dd40f2e2fc6544a1255d27a7558f1b106cd151330f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a47f4b0e523540559b32dd40f2e2fc6544a1255d27a7558f1b106cd151330f90", kill_on_drop: false }`
[INFO] [stdout] a47f4b0e523540559b32dd40f2e2fc6544a1255d27a7558f1b106cd151330f90