[INFO] cloning repository https://github.com/mtsmfm/split-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtsmfm/split-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtsmfm%2Fsplit-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtsmfm%2Fsplit-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45ee4d430ebd16bc0fce7581b38f38d1bb23fbbb
[INFO] checking mtsmfm/split-test against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtsmfm%2Fsplit-test" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mtsmfm/split-test 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/mtsmfm/split-test
[INFO] finished tweaking git repo https://github.com/mtsmfm/split-test
[INFO] tweaked toml for git repo https://github.com/mtsmfm/split-test written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mtsmfm/split-test 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 assert_cmd v1.0.7
[INFO] [stderr]   Downloaded predicates v2.0.0
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] eab3ccd339ddf09b5884586b11063034d84c6680fa379074fa5bf1ee24018003
[INFO] running `Command { std: "docker" "start" "-a" "eab3ccd339ddf09b5884586b11063034d84c6680fa379074fa5bf1ee24018003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eab3ccd339ddf09b5884586b11063034d84c6680fa379074fa5bf1ee24018003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eab3ccd339ddf09b5884586b11063034d84c6680fa379074fa5bf1ee24018003", kill_on_drop: false }`
[INFO] [stdout] eab3ccd339ddf09b5884586b11063034d84c6680fa379074fa5bf1ee24018003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7de0d02f90e1a7acd3f49dcee1d6be6ec79ea257c0d934e3fc33aa7f4988e440
[INFO] running `Command { std: "docker" "start" "-a" "7de0d02f90e1a7acd3f49dcee1d6be6ec79ea257c0d934e3fc33aa7f4988e440", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking predicates v2.0.0
[INFO] [stderr]     Checking assert_cmd v1.0.7
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking split-test v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.51s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[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" "7de0d02f90e1a7acd3f49dcee1d6be6ec79ea257c0d934e3fc33aa7f4988e440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7de0d02f90e1a7acd3f49dcee1d6be6ec79ea257c0d934e3fc33aa7f4988e440", kill_on_drop: false }`
[INFO] [stdout] 7de0d02f90e1a7acd3f49dcee1d6be6ec79ea257c0d934e3fc33aa7f4988e440
[INFO] checking mtsmfm/split-test against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtsmfm%2Fsplit-test" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mtsmfm/split-test 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/mtsmfm/split-test
[INFO] finished tweaking git repo https://github.com/mtsmfm/split-test
[INFO] tweaked toml for git repo https://github.com/mtsmfm/split-test written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mtsmfm/split-test 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 74183fe366bb3ce37101f5c2c3a67a4cfb7d0ed40307e58e7e0396ee057934f8
[INFO] running `Command { std: "docker" "start" "-a" "74183fe366bb3ce37101f5c2c3a67a4cfb7d0ed40307e58e7e0396ee057934f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74183fe366bb3ce37101f5c2c3a67a4cfb7d0ed40307e58e7e0396ee057934f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74183fe366bb3ce37101f5c2c3a67a4cfb7d0ed40307e58e7e0396ee057934f8", kill_on_drop: false }`
[INFO] [stdout] 74183fe366bb3ce37101f5c2c3a67a4cfb7d0ed40307e58e7e0396ee057934f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] af522e915809b14f30883ba96d1b3b1d336cea33b2d056f6e8f983e72c4752ad
[INFO] running `Command { std: "docker" "start" "-a" "af522e915809b14f30883ba96d1b3b1d336cea33b2d056f6e8f983e72c4752ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.2/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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "af522e915809b14f30883ba96d1b3b1d336cea33b2d056f6e8f983e72c4752ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af522e915809b14f30883ba96d1b3b1d336cea33b2d056f6e8f983e72c4752ad", kill_on_drop: false }`
[INFO] [stdout] af522e915809b14f30883ba96d1b3b1d336cea33b2d056f6e8f983e72c4752ad