[INFO] cloning repository https://github.com/atravkovs/tscn_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/atravkovs/tscn_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatravkovs%2Ftscn_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatravkovs%2Ftscn_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35432ec35fb874c1871d8eb4d7598e0f6ce0d904
[INFO] checking atravkovs/tscn_parser against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatravkovs%2Ftscn_parser" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/atravkovs/tscn_parser 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/atravkovs/tscn_parser
[INFO] finished tweaking git repo https://github.com/atravkovs/tscn_parser
[INFO] tweaked toml for git repo https://github.com/atravkovs/tscn_parser written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/atravkovs/tscn_parser 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 thread_local v1.1.2
[INFO] [stderr]   Downloaded nalgebra v0.24.0
[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] 36dc665ccac8fd48394517fb82c5c1ecf16ff0559bb236341c6d543607a54b68
[INFO] running `Command { std: "docker" "start" "-a" "36dc665ccac8fd48394517fb82c5c1ecf16ff0559bb236341c6d543607a54b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36dc665ccac8fd48394517fb82c5c1ecf16ff0559bb236341c6d543607a54b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36dc665ccac8fd48394517fb82c5c1ecf16ff0559bb236341c6d543607a54b68", kill_on_drop: false }`
[INFO] [stdout] 36dc665ccac8fd48394517fb82c5c1ecf16ff0559bb236341c6d543607a54b68
[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] c8ac970650d7b5c05c9a8cdb0360f9d6f0e69d3d44e16eb4aedc818990bffb02
[INFO] running `Command { std: "docker" "start" "-a" "c8ac970650d7b5c05c9a8cdb0360f9d6f0e69d3d44e16eb4aedc818990bffb02", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking simba v0.3.1
[INFO] [stderr]     Checking rand_distr v0.3.0
[INFO] [stderr]     Checking nalgebra v0.24.0
[INFO] [stderr]     Checking tscn-parser v0.5.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "c8ac970650d7b5c05c9a8cdb0360f9d6f0e69d3d44e16eb4aedc818990bffb02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ac970650d7b5c05c9a8cdb0360f9d6f0e69d3d44e16eb4aedc818990bffb02", kill_on_drop: false }`
[INFO] [stdout] c8ac970650d7b5c05c9a8cdb0360f9d6f0e69d3d44e16eb4aedc818990bffb02
[INFO] checking atravkovs/tscn_parser against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatravkovs%2Ftscn_parser" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/atravkovs/tscn_parser 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/atravkovs/tscn_parser
[INFO] finished tweaking git repo https://github.com/atravkovs/tscn_parser
[INFO] tweaked toml for git repo https://github.com/atravkovs/tscn_parser written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/atravkovs/tscn_parser 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] 3e607afa33afd552ea4a2012d1232eec6c7dbc227350eca814b9d0b931fda3fd
[INFO] running `Command { std: "docker" "start" "-a" "3e607afa33afd552ea4a2012d1232eec6c7dbc227350eca814b9d0b931fda3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e607afa33afd552ea4a2012d1232eec6c7dbc227350eca814b9d0b931fda3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e607afa33afd552ea4a2012d1232eec6c7dbc227350eca814b9d0b931fda3fd", kill_on_drop: false }`
[INFO] [stdout] 3e607afa33afd552ea4a2012d1232eec6c7dbc227350eca814b9d0b931fda3fd
[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] 5f155afd830e4d941cfa4d814403cd9b18fd5f753b5c16aa669db864b97c7ad7
[INFO] running `Command { std: "docker" "start" "-a" "5f155afd830e4d941cfa4d814403cd9b18fd5f753b5c16aa669db864b97c7ad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking simba v0.3.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand_distr v0.3.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.3/src/exec.rs:841:13
[INFO] [stdout]     |
[INFO] [stdout] 841 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 842 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 843 | |                 self.cache.value(),
[INFO] [stdout] 844 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 855 | |                 Quit => return Some(Quit),
[INFO] [stdout] 856 | |             };
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5f155afd830e4d941cfa4d814403cd9b18fd5f753b5c16aa669db864b97c7ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f155afd830e4d941cfa4d814403cd9b18fd5f753b5c16aa669db864b97c7ad7", kill_on_drop: false }`
[INFO] [stdout] 5f155afd830e4d941cfa4d814403cd9b18fd5f753b5c16aa669db864b97c7ad7