[INFO] cloning repository https://github.com/jackkav/frank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackkav/frank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackkav%2Ffrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackkav%2Ffrank'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ffe3598acc00f900e9f746a1cb5ebf0630ed862
[INFO] checking jackkav/frank against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackkav%2Ffrank" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackkav/frank 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/jackkav/frank
[INFO] finished tweaking git repo https://github.com/jackkav/frank
[INFO] tweaked toml for git repo https://github.com/jackkav/frank written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jackkav/frank 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 libdbus-sys v0.2.1
[INFO] [stderr]   Downloaded anyhow v1.0.31
[INFO] [stderr]   Downloaded slab v0.1.3
[INFO] [stderr]   Downloaded mac-notification-sys v0.3.0
[INFO] [stderr]   Downloaded dbus v0.6.5
[INFO] [stderr]   Downloaded walkdir v0.1.8
[INFO] [stderr]   Downloaded rustfix v0.5.1
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded mio v0.5.1
[INFO] [stderr]   Downloaded bytes v0.3.0
[INFO] [stderr]   Downloaded miow v0.1.5
[INFO] [stderr]   Downloaded notify v2.6.3
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded notify-rust v3.6.3
[INFO] [stderr]   Downloaded cargo-testify v0.3.0
[INFO] [stderr]   Downloaded inotify v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 21f56f446f5f60470bb12b6ce8c3a493dd2be3150cbe02fa74db725b389c1505
[INFO] running `Command { std: "docker" "start" "-a" "21f56f446f5f60470bb12b6ce8c3a493dd2be3150cbe02fa74db725b389c1505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21f56f446f5f60470bb12b6ce8c3a493dd2be3150cbe02fa74db725b389c1505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f56f446f5f60470bb12b6ce8c3a493dd2be3150cbe02fa74db725b389c1505", kill_on_drop: false }`
[INFO] [stdout] 21f56f446f5f60470bb12b6ce8c3a493dd2be3150cbe02fa74db725b389c1505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fad0970d8e1bb589fa6f1262b1b39974ce65506b3a90172049b6086d540d634d
[INFO] running `Command { std: "docker" "start" "-a" "fad0970d8e1bb589fa6f1262b1b39974ce65506b3a90172049b6086d540d634d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking ryu v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking inotify v0.2.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking notify v2.6.3
[INFO] [stderr]     Checking notify-rust v3.6.3
[INFO] [stderr]     Checking cargo-testify v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stderr]     Checking frank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:65:53
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Err(err) => panic!("Couldn't read: {}", err.description()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:65:53
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Err(err) => panic!("Couldn't read: {}", err.description()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_letter` is never used
[INFO] [stdout]   --> tests/test_string_parsing.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn is_letter(letter: u8) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "fad0970d8e1bb589fa6f1262b1b39974ce65506b3a90172049b6086d540d634d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fad0970d8e1bb589fa6f1262b1b39974ce65506b3a90172049b6086d540d634d", kill_on_drop: false }`
[INFO] [stdout] fad0970d8e1bb589fa6f1262b1b39974ce65506b3a90172049b6086d540d634d
[INFO] checking jackkav/frank against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackkav%2Ffrank" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackkav/frank 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/jackkav/frank
[INFO] finished tweaking git repo https://github.com/jackkav/frank
[INFO] tweaked toml for git repo https://github.com/jackkav/frank written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jackkav/frank 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c30b37ef377e4bb7e04aa24bb2599f191129148e2a642a97c7a82317a9861589
[INFO] running `Command { std: "docker" "start" "-a" "c30b37ef377e4bb7e04aa24bb2599f191129148e2a642a97c7a82317a9861589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c30b37ef377e4bb7e04aa24bb2599f191129148e2a642a97c7a82317a9861589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30b37ef377e4bb7e04aa24bb2599f191129148e2a642a97c7a82317a9861589", kill_on_drop: false }`
[INFO] [stdout] c30b37ef377e4bb7e04aa24bb2599f191129148e2a642a97c7a82317a9861589
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1f828031d04834d1053d390798eabacc6c62f2e12eac93a0ee2fcf552f31d524
[INFO] running `Command { std: "docker" "start" "-a" "1f828031d04834d1053d390798eabacc6c62f2e12eac93a0ee2fcf552f31d524", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking inotify v0.2.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking error-chain v0.10.0
[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]     Checking notify v2.6.3
[INFO] [stderr]     Checking notify-rust v3.6.3
[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" "1f828031d04834d1053d390798eabacc6c62f2e12eac93a0ee2fcf552f31d524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f828031d04834d1053d390798eabacc6c62f2e12eac93a0ee2fcf552f31d524", kill_on_drop: false }`
[INFO] [stdout] 1f828031d04834d1053d390798eabacc6c62f2e12eac93a0ee2fcf552f31d524