[INFO] fetching crate diar 2.3.0...
[INFO] checking diar-2.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate diar 2.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate diar 2.3.0 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 diar 2.3.0
[INFO] finished tweaking crates.io crate diar 2.3.0
[INFO] tweaked toml for crates.io crate diar 2.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate diar 2.3.0 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 serde_bytes v0.11.2
[INFO] [stderr]   Downloaded serde_derive v1.0.100
[INFO] [stderr]   Downloaded historian v4.0.3
[INFO] [stderr]   Downloaded fuzzy-matcher v0.3.4
[INFO] [stderr]   Downloaded bincode v1.1.4
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded serde v1.0.100
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded rayon-core v1.7.0
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded rayon v1.3.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded skim v0.8.1
[INFO] [stderr]   Downloaded tuikit v0.3.2
[INFO] [stderr]   Downloaded utf8parse v0.1.1
[INFO] [stderr]   Downloaded vte v0.3.3
[INFO] [stderr]   Downloaded sled v0.27.0
[INFO] [stderr]   Downloaded pagecache v0.19.2
[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] d9352bbd874f5a1e3acd225fd38eb615a55cb13eff9df1cdcc7b779ff14c11d9
[INFO] running `Command { std: "docker" "start" "-a" "d9352bbd874f5a1e3acd225fd38eb615a55cb13eff9df1cdcc7b779ff14c11d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9352bbd874f5a1e3acd225fd38eb615a55cb13eff9df1cdcc7b779ff14c11d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9352bbd874f5a1e3acd225fd38eb615a55cb13eff9df1cdcc7b779ff14c11d9", kill_on_drop: false }`
[INFO] [stdout] d9352bbd874f5a1e3acd225fd38eb615a55cb13eff9df1cdcc7b779ff14c11d9
[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] 9f33317bca0e5ec00cfcc7a741df8110ace4ae99b912671dfb57dd6bc5bdaa0d
[INFO] running `Command { std: "docker" "start" "-a" "9f33317bca0e5ec00cfcc7a741df8110ace4ae99b912671dfb57dd6bc5bdaa0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking historian v4.0.3
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking fuzzy-matcher v0.3.4
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking tuikit v0.3.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.100
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking skim v0.8.1
[INFO] [stderr]     Checking serde_bytes v0.11.2
[INFO] [stderr]     Checking pagecache v0.19.2
[INFO] [stderr]     Checking sled v0.27.0
[INFO] [stderr]     Checking diar v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.48s
[INFO] running `Command { std: "docker" "inspect" "9f33317bca0e5ec00cfcc7a741df8110ace4ae99b912671dfb57dd6bc5bdaa0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f33317bca0e5ec00cfcc7a741df8110ace4ae99b912671dfb57dd6bc5bdaa0d", kill_on_drop: false }`
[INFO] [stdout] 9f33317bca0e5ec00cfcc7a741df8110ace4ae99b912671dfb57dd6bc5bdaa0d
[INFO] checking diar-2.3.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate diar 2.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate diar 2.3.0 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 diar 2.3.0
[INFO] finished tweaking crates.io crate diar 2.3.0
[INFO] tweaked toml for crates.io crate diar 2.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate diar 2.3.0 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-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] dc040bcb93e76b38617d22ec754d29989f25c395eda4ad5e00cf9df45208fd78
[INFO] running `Command { std: "docker" "start" "-a" "dc040bcb93e76b38617d22ec754d29989f25c395eda4ad5e00cf9df45208fd78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc040bcb93e76b38617d22ec754d29989f25c395eda4ad5e00cf9df45208fd78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc040bcb93e76b38617d22ec754d29989f25c395eda4ad5e00cf9df45208fd78", kill_on_drop: false }`
[INFO] [stdout] dc040bcb93e76b38617d22ec754d29989f25c395eda4ad5e00cf9df45208fd78
[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] 43367dc1cbbbb9881b047ae7caeb8572539191b7c5d5e45d71a2e3c290328da4
[INFO] running `Command { std: "docker" "start" "-a" "43367dc1cbbbb9881b047ae7caeb8572539191b7c5d5e45d71a2e3c290328da4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking historian v4.0.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking fuzzy-matcher v0.3.4
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.11/src/format/parse.rs:423:21
[INFO] [stdout]     |
[INFO] [stdout] 423 |                     Err(INVALID)?;
[INFO] [stdout]     |                     ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 423 |                     Err::<T, format::ParseError>(INVALID)?;
[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 `chrono` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.7/src/exec.rs:836:13
[INFO] [stdout]     |
[INFO] [stdout] 836 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 837 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 838 | |                 self.cache.value(),
[INFO] [stdout] 839 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 850 | |                 Quit => return Some(Quit),
[INFO] [stdout] 851 | |             };
[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 `regex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "43367dc1cbbbb9881b047ae7caeb8572539191b7c5d5e45d71a2e3c290328da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43367dc1cbbbb9881b047ae7caeb8572539191b7c5d5e45d71a2e3c290328da4", kill_on_drop: false }`
[INFO] [stdout] 43367dc1cbbbb9881b047ae7caeb8572539191b7c5d5e45d71a2e3c290328da4