[INFO] cloning repository https://github.com/dcminter/zoomies
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcminter/zoomies" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcminter%2Fzoomies", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcminter%2Fzoomies'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9390a33d13fa4491832cc94e2f303393a75e86da
[INFO] checking dcminter/zoomies against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcminter%2Fzoomies" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dcminter/zoomies 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/dcminter/zoomies
[INFO] finished tweaking git repo https://github.com/dcminter/zoomies
[INFO] tweaked toml for git repo https://github.com/dcminter/zoomies written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dcminter/zoomies 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 system-deps v3.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bab9cd85a7c6333266a92be53618e33db0acb4b8f7b35d8ff2f70cf5993fedd3
[INFO] running `Command { std: "docker" "start" "-a" "bab9cd85a7c6333266a92be53618e33db0acb4b8f7b35d8ff2f70cf5993fedd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bab9cd85a7c6333266a92be53618e33db0acb4b8f7b35d8ff2f70cf5993fedd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab9cd85a7c6333266a92be53618e33db0acb4b8f7b35d8ff2f70cf5993fedd3", kill_on_drop: false }`
[INFO] [stdout] bab9cd85a7c6333266a92be53618e33db0acb4b8f7b35d8ff2f70cf5993fedd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aa0596a59b45a363ccb885eda0d388faeeb25e7cc25a1af2fec89d9d43590546
[INFO] running `Command { std: "docker" "start" "-a" "aa0596a59b45a363ccb885eda0d388faeeb25e7cc25a1af2fec89d9d43590546", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling cfg-expr v0.7.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling gio v0.14.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]    Compiling gtk v0.14.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling glib-macros v0.14.1
[INFO] [stderr]    Compiling gtk3-macros v0.14.0
[INFO] [stderr]    Compiling system-deps v3.1.2
[INFO] [stderr]    Compiling glib-sys v0.14.0
[INFO] [stderr]    Compiling gobject-sys v0.14.0
[INFO] [stderr]    Compiling gio-sys v0.14.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.14.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.14.0
[INFO] [stderr]    Compiling pango-sys v0.14.0
[INFO] [stderr]    Compiling gdk-sys v0.14.0
[INFO] [stderr]    Compiling atk-sys v0.14.0
[INFO] [stderr]    Compiling gtk-sys v0.14.0
[INFO] [stderr]     Checking glib v0.14.2
[INFO] [stderr]    Compiling v4l2-sys-mit v0.2.0
[INFO] [stderr]     Checking v4l v0.12.1
[INFO] [stderr]     Checking cairo-rs v0.14.1
[INFO] [stderr]     Checking pango v0.14.0
[INFO] [stderr]     Checking atk v0.14.0
[INFO] [stderr]     Checking gdk-pixbuf v0.14.0
[INFO] [stderr]     Checking gdk v0.14.0
[INFO] [stderr]     Checking zoomies v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.39s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "aa0596a59b45a363ccb885eda0d388faeeb25e7cc25a1af2fec89d9d43590546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0596a59b45a363ccb885eda0d388faeeb25e7cc25a1af2fec89d9d43590546", kill_on_drop: false }`
[INFO] [stdout] aa0596a59b45a363ccb885eda0d388faeeb25e7cc25a1af2fec89d9d43590546
[INFO] checking dcminter/zoomies against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcminter%2Fzoomies" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dcminter/zoomies 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/dcminter/zoomies
[INFO] finished tweaking git repo https://github.com/dcminter/zoomies
[INFO] tweaked toml for git repo https://github.com/dcminter/zoomies written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dcminter/zoomies 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8608496f68c857f690feeafc08aecb6e99c8480b126d0fd6a7ba340bb44fa2e3
[INFO] running `Command { std: "docker" "start" "-a" "8608496f68c857f690feeafc08aecb6e99c8480b126d0fd6a7ba340bb44fa2e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8608496f68c857f690feeafc08aecb6e99c8480b126d0fd6a7ba340bb44fa2e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8608496f68c857f690feeafc08aecb6e99c8480b126d0fd6a7ba340bb44fa2e3", kill_on_drop: false }`
[INFO] [stdout] 8608496f68c857f690feeafc08aecb6e99c8480b126d0fd6a7ba340bb44fa2e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 382f71c8bdc5ccf087d95ba73c73d5ae9660ea6ad2a7a3863cee378d10744db8
[INFO] running `Command { std: "docker" "start" "-a" "382f71c8bdc5ccf087d95ba73c73d5ae9660ea6ad2a7a3863cee378d10744db8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling cfg-expr v0.7.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[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] [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" "382f71c8bdc5ccf087d95ba73c73d5ae9660ea6ad2a7a3863cee378d10744db8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "382f71c8bdc5ccf087d95ba73c73d5ae9660ea6ad2a7a3863cee378d10744db8", kill_on_drop: false }`
[INFO] [stdout] 382f71c8bdc5ccf087d95ba73c73d5ae9660ea6ad2a7a3863cee378d10744db8