[INFO] cloning repository https://github.com/agu3rra/book_cli_rust_ch3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agu3rra/book_cli_rust_ch3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagu3rra%2Fbook_cli_rust_ch3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagu3rra%2Fbook_cli_rust_ch3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fb98dbc1816250f26e82a471084eaf640939bd2
[INFO] checking agu3rra/book_cli_rust_ch3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagu3rra%2Fbook_cli_rust_ch3" "/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/agu3rra/book_cli_rust_ch3 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/agu3rra/book_cli_rust_ch3
[INFO] finished tweaking git repo https://github.com/agu3rra/book_cli_rust_ch3
[INFO] tweaked toml for git repo https://github.com/agu3rra/book_cli_rust_ch3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/agu3rra/book_cli_rust_ch3 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] 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] adac4000ea11a98ebd7b5cc085bd8e3ef624a2a33cb17417874ac0ea83215742
[INFO] running `Command { std: "docker" "start" "-a" "adac4000ea11a98ebd7b5cc085bd8e3ef624a2a33cb17417874ac0ea83215742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adac4000ea11a98ebd7b5cc085bd8e3ef624a2a33cb17417874ac0ea83215742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adac4000ea11a98ebd7b5cc085bd8e3ef624a2a33cb17417874ac0ea83215742", kill_on_drop: false }`
[INFO] [stdout] adac4000ea11a98ebd7b5cc085bd8e3ef624a2a33cb17417874ac0ea83215742
[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] df336048896d7df4ccaf392e1fecf12d45498365950afba583861f9681f83bb7
[INFO] running `Command { std: "docker" "start" "-a" "df336048896d7df4ccaf392e1fecf12d45498365950afba583861f9681f83bb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking catr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `Command { std: "docker" "inspect" "df336048896d7df4ccaf392e1fecf12d45498365950afba583861f9681f83bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df336048896d7df4ccaf392e1fecf12d45498365950afba583861f9681f83bb7", kill_on_drop: false }`
[INFO] [stdout] df336048896d7df4ccaf392e1fecf12d45498365950afba583861f9681f83bb7
[INFO] checking agu3rra/book_cli_rust_ch3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagu3rra%2Fbook_cli_rust_ch3" "/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/agu3rra/book_cli_rust_ch3 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/agu3rra/book_cli_rust_ch3
[INFO] finished tweaking git repo https://github.com/agu3rra/book_cli_rust_ch3
[INFO] tweaked toml for git repo https://github.com/agu3rra/book_cli_rust_ch3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/agu3rra/book_cli_rust_ch3 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] [stderr]     Blocking waiting for file lock on package cache
[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] e6b85e077c0855e6061bc768d62a57ccfa8a515529c003f8302fc41ea449b7c5
[INFO] running `Command { std: "docker" "start" "-a" "e6b85e077c0855e6061bc768d62a57ccfa8a515529c003f8302fc41ea449b7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6b85e077c0855e6061bc768d62a57ccfa8a515529c003f8302fc41ea449b7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b85e077c0855e6061bc768d62a57ccfa8a515529c003f8302fc41ea449b7c5", kill_on_drop: false }`
[INFO] [stdout] e6b85e077c0855e6061bc768d62a57ccfa8a515529c003f8302fc41ea449b7c5
[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] d3f648f649a7b50969369bae5b370817f187a5bad32682ae9a68b42db9d66b74
[INFO] running `Command { std: "docker" "start" "-a" "d3f648f649a7b50969369bae5b370817f187a5bad32682ae9a68b42db9d66b74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.5/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]     Checking bstr v0.2.17
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[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" "d3f648f649a7b50969369bae5b370817f187a5bad32682ae9a68b42db9d66b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f648f649a7b50969369bae5b370817f187a5bad32682ae9a68b42db9d66b74", kill_on_drop: false }`
[INFO] [stdout] d3f648f649a7b50969369bae5b370817f187a5bad32682ae9a68b42db9d66b74