[INFO] fetching crate diatom-std-core 0.1.1...
[INFO] checking diatom-std-core-0.1.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate diatom-std-core 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate diatom-std-core 0.1.1 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 diatom-std-core 0.1.1
[INFO] finished tweaking crates.io crate diatom-std-core 0.1.1
[INFO] tweaked toml for crates.io crate diatom-std-core 0.1.1 written to /workspace/builds/worker-0-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 36 packages
[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 more-asserts v0.3.1
[INFO] [stderr]   Downloaded diatom-core v0.6.1
[INFO] [stderr]   Downloaded bimap v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6164b1e50a30ca6f7d4efbe407df867d94417bc27a0c1d1f9f2fd7f684f94f2a
[INFO] running `Command { std: "docker" "start" "-a" "6164b1e50a30ca6f7d4efbe407df867d94417bc27a0c1d1f9f2fd7f684f94f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6164b1e50a30ca6f7d4efbe407df867d94417bc27a0c1d1f9f2fd7f684f94f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6164b1e50a30ca6f7d4efbe407df867d94417bc27a0c1d1f9f2fd7f684f94f2a", kill_on_drop: false }`
[INFO] [stdout] 6164b1e50a30ca6f7d4efbe407df867d94417bc27a0c1d1f9f2fd7f684f94f2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c1c7bd33686a0561d088f48efb603d4895773e6261dbb30c41495ab122f5b0ba
[INFO] running `Command { std: "docker" "start" "-a" "c1c7bd33686a0561d088f48efb603d4895773e6261dbb30c41495ab122f5b0ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking more-asserts v0.3.1
[INFO] [stderr]     Checking bimap v0.6.3
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking diatom-core v0.6.1
[INFO] [stderr]     Checking diatom-std-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "c1c7bd33686a0561d088f48efb603d4895773e6261dbb30c41495ab122f5b0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c7bd33686a0561d088f48efb603d4895773e6261dbb30c41495ab122f5b0ba", kill_on_drop: false }`
[INFO] [stdout] c1c7bd33686a0561d088f48efb603d4895773e6261dbb30c41495ab122f5b0ba
[INFO] checking diatom-std-core-0.1.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate diatom-std-core 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate diatom-std-core 0.1.1 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 diatom-std-core 0.1.1
[INFO] finished tweaking crates.io crate diatom-std-core 0.1.1
[INFO] tweaked toml for crates.io crate diatom-std-core 0.1.1 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0135ca269a7c2b4560bd6cbc4c54ecd500a4fb0f60ddd73b09d412af0a41c9b1
[INFO] running `Command { std: "docker" "start" "-a" "0135ca269a7c2b4560bd6cbc4c54ecd500a4fb0f60ddd73b09d412af0a41c9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0135ca269a7c2b4560bd6cbc4c54ecd500a4fb0f60ddd73b09d412af0a41c9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0135ca269a7c2b4560bd6cbc4c54ecd500a4fb0f60ddd73b09d412af0a41c9b1", kill_on_drop: false }`
[INFO] [stdout] 0135ca269a7c2b4560bd6cbc4c54ecd500a4fb0f60ddd73b09d412af0a41c9b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 530501ec11d9101374c9cffdb5b909c57e3c9d02d2f352ac0fad9b02db5f768d
[INFO] running `Command { std: "docker" "start" "-a" "530501ec11d9101374c9cffdb5b909c57e3c9d02d2f352ac0fad9b02db5f768d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking bimap v0.6.3
[INFO] [stderr]     Checking more-asserts v0.3.1
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking diatom-core v0.6.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/diatom-core-0.6.1/src/frontend/parser/mod.rs:1067:25
[INFO] [stdout]      |
[INFO] [stdout] 1067 | /                         match op {
[INFO] [stdout] 1068 | |                             OpPostfix::Call => {
[INFO] [stdout] 1069 | |                                 iter.next();
[INFO] [stdout] 1070 | |                                 let previous_loc = iter.loc();
[INFO] [stdout] ...    |
[INFO] [stdout] 1123 | |                             }
[INFO] [stdout] 1124 | |                         };
[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 `diatom-core` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "530501ec11d9101374c9cffdb5b909c57e3c9d02d2f352ac0fad9b02db5f768d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530501ec11d9101374c9cffdb5b909c57e3c9d02d2f352ac0fad9b02db5f768d", kill_on_drop: false }`
[INFO] [stdout] 530501ec11d9101374c9cffdb5b909c57e3c9d02d2f352ac0fad9b02db5f768d