[INFO] cloning repository https://github.com/zKevz/GrowRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zKevz/GrowRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FzKevz%2FGrowRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FzKevz%2FGrowRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c76d21f28a38d70d450a5e1223e09b6c11f8cef2
[INFO] checking zKevz/GrowRust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FzKevz%2FGrowRust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zKevz/GrowRust 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/zKevz/GrowRust
[INFO] finished tweaking git repo https://github.com/zKevz/GrowRust
[INFO] tweaked toml for git repo https://github.com/zKevz/GrowRust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zKevz/GrowRust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cexpr v0.2.3
[INFO] [stderr]   Downloaded which v1.0.5
[INFO] [stderr]   Downloaded clang-sys v0.22.0
[INFO] [stderr]   Downloaded bindgen v0.35.0
[INFO] [stderr]   Downloaded enet-sys v0.2.3
[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] 28c9199e92e377911db26be44bf96b8ce35fce913a12ac75d8e7a6dc7fc0f116
[INFO] running `Command { std: "docker" "start" "-a" "28c9199e92e377911db26be44bf96b8ce35fce913a12ac75d8e7a6dc7fc0f116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28c9199e92e377911db26be44bf96b8ce35fce913a12ac75d8e7a6dc7fc0f116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c9199e92e377911db26be44bf96b8ce35fce913a12ac75d8e7a6dc7fc0f116", kill_on_drop: false }`
[INFO] [stdout] 28c9199e92e377911db26be44bf96b8ce35fce913a12ac75d8e7a6dc7fc0f116
[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] dc2ca3bc53f91c27bd8e0fecaf63ae0735788ed36689b74d050ff0c525acee3f
[INFO] running `Command { std: "docker" "start" "-a" "dc2ca3bc53f91c27bd8e0fecaf63ae0735788ed36689b74d050ff0c525acee3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling clang-sys v0.22.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling bindgen v0.35.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling enet-sys v0.2.3
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v3.2.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "dc2ca3bc53f91c27bd8e0fecaf63ae0735788ed36689b74d050ff0c525acee3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc2ca3bc53f91c27bd8e0fecaf63ae0735788ed36689b74d050ff0c525acee3f", kill_on_drop: false }`
[INFO] [stdout] dc2ca3bc53f91c27bd8e0fecaf63ae0735788ed36689b74d050ff0c525acee3f
[INFO] checking zKevz/GrowRust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FzKevz%2FGrowRust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zKevz/GrowRust 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/zKevz/GrowRust
[INFO] finished tweaking git repo https://github.com/zKevz/GrowRust
[INFO] tweaked toml for git repo https://github.com/zKevz/GrowRust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zKevz/GrowRust 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] 04d516d255a1a245b1e425221ccc16a6409d2b4469b2903deff3c54c8f52f9e2
[INFO] running `Command { std: "docker" "start" "-a" "04d516d255a1a245b1e425221ccc16a6409d2b4469b2903deff3c54c8f52f9e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d516d255a1a245b1e425221ccc16a6409d2b4469b2903deff3c54c8f52f9e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d516d255a1a245b1e425221ccc16a6409d2b4469b2903deff3c54c8f52f9e2", kill_on_drop: false }`
[INFO] [stdout] 04d516d255a1a245b1e425221ccc16a6409d2b4469b2903deff3c54c8f52f9e2
[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] cb23f928ef026d72a05d9652f7972c261e3bb778f52a18a8d5c4a597ed8d95d8
[INFO] running `Command { std: "docker" "start" "-a" "cb23f928ef026d72a05d9652f7972c261e3bb778f52a18a8d5c4a597ed8d95d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling clang-sys v0.22.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling bindgen v0.35.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.11/src/exec.rs:756:13
[INFO] [stdout]     |
[INFO] [stdout] 756 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 757 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 758 | |                 self.cache,
[INFO] [stdout] 759 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 766 | |                 Quit => return Some(Quit),
[INFO] [stdout] 767 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.4/src/exec.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 849 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 850 | |                 self.cache.value(),
[INFO] [stdout] 851 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 862 | |                 Quit => return Some(Quit),
[INFO] [stdout] 863 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking getrandom v0.2.4
[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] [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" "cb23f928ef026d72a05d9652f7972c261e3bb778f52a18a8d5c4a597ed8d95d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb23f928ef026d72a05d9652f7972c261e3bb778f52a18a8d5c4a597ed8d95d8", kill_on_drop: false }`
[INFO] [stdout] cb23f928ef026d72a05d9652f7972c261e3bb778f52a18a8d5c4a597ed8d95d8