[INFO] cloning repository https://github.com/daniel-mueller/rust-cli-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daniel-mueller/rust-cli-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-mueller%2Frust-cli-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-mueller%2Frust-cli-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 619e9e5e8ca094747723d58e809b248e90ad4521 [INFO] checking daniel-mueller/rust-cli-tutorial against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-mueller%2Frust-cli-tutorial" "/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/daniel-mueller/rust-cli-tutorial 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/daniel-mueller/rust-cli-tutorial [INFO] finished tweaking git repo https://github.com/daniel-mueller/rust-cli-tutorial [INFO] tweaked toml for git repo https://github.com/daniel-mueller/rust-cli-tutorial written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/daniel-mueller/rust-cli-tutorial 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 treeline v0.1.0 [INFO] [stderr] Downloaded normalize-line-endings v0.2.2 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded structopt-derive v0.2.14 [INFO] [stderr] Downloaded redox_syscall v0.1.50 [INFO] [stderr] Downloaded autocfg v0.1.1 [INFO] [stderr] Downloaded structopt v0.2.14 [INFO] [stderr] Downloaded rand_os v0.1.1 [INFO] [stderr] Downloaded escargot v0.3.1 [INFO] [stderr] Downloaded predicates v1.0.0 [INFO] [stderr] Downloaded serde_derive v1.0.84 [INFO] [stderr] Downloaded serde v1.0.84 [INFO] [stderr] Downloaded syn v0.15.24 [INFO] [stderr] Downloaded regex-syntax v0.6.4 [INFO] [stderr] Downloaded libc v0.2.46 [INFO] [stderr] Downloaded serde_json v1.0.34 [INFO] [stderr] Downloaded rand v0.6.4 [INFO] [stderr] Downloaded assert_cmd v0.10.2 [INFO] [stderr] Downloaded float-cmp v0.4.0 [INFO] [stderr] Downloaded aho-corasick v0.6.9 [INFO] [stderr] Downloaded memchr v2.1.2 [INFO] [stderr] Downloaded proc-macro2 v0.4.24 [INFO] [stderr] Downloaded tempfile v3.0.5 [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] 043a254140d45cc18560bba6fca980c6b006f5f5fd926722d3c7e1209dfbab32 [INFO] running `Command { std: "docker" "start" "-a" "043a254140d45cc18560bba6fca980c6b006f5f5fd926722d3c7e1209dfbab32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "043a254140d45cc18560bba6fca980c6b006f5f5fd926722d3c7e1209dfbab32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "043a254140d45cc18560bba6fca980c6b006f5f5fd926722d3c7e1209dfbab32", kill_on_drop: false }` [INFO] [stdout] 043a254140d45cc18560bba6fca980c6b006f5f5fd926722d3c7e1209dfbab32 [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] 3f3e699da2839e41ba8d9df547933288f81d5a1c5e6a02241d61edef2208a75e [INFO] running `Command { std: "docker" "start" "-a" "3f3e699da2839e41ba8d9df547933288f81d5a1c5e6a02241d61edef2208a75e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.46 [INFO] [stderr] Compiling proc-macro2 v0.4.24 [INFO] [stderr] Compiling autocfg v0.1.1 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling cc v1.0.28 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling serde v1.0.84 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Checking rustc-demangle v0.1.13 [INFO] [stderr] Compiling memchr v2.1.2 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking strsim v0.7.0 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking regex-syntax v0.6.4 [INFO] [stderr] Compiling escargot v0.3.1 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking normalize-line-endings v0.2.2 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking rand_os v0.1.1 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Compiling syn v0.15.24 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking float-cmp v0.4.0 [INFO] [stderr] Checking tempfile v3.0.5 [INFO] [stderr] Checking predicates v1.0.0 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling serde_derive v1.0.84 [INFO] [stderr] Compiling structopt-derive v0.2.14 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking structopt v0.2.14 [INFO] [stderr] Checking exitfailure v0.5.1 [INFO] [stderr] Checking grrs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking serde_json v1.0.34 [INFO] [stderr] Checking assert_cmd v0.10.2 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/cli.rs:8:42 [INFO] [stdout] | [INFO] [stdout] 8 | fn file_doesnt_exist() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 8 | fn file_doesnt_exist() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/cli.rs:19:45 [INFO] [stdout] | [INFO] [stdout] 19 | fn find_content_in_file() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 19 | fn find_content_in_file() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.05s [INFO] running `Command { std: "docker" "inspect" "3f3e699da2839e41ba8d9df547933288f81d5a1c5e6a02241d61edef2208a75e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f3e699da2839e41ba8d9df547933288f81d5a1c5e6a02241d61edef2208a75e", kill_on_drop: false }` [INFO] [stdout] 3f3e699da2839e41ba8d9df547933288f81d5a1c5e6a02241d61edef2208a75e [INFO] checking daniel-mueller/rust-cli-tutorial against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-mueller%2Frust-cli-tutorial" "/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/daniel-mueller/rust-cli-tutorial 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/daniel-mueller/rust-cli-tutorial [INFO] finished tweaking git repo https://github.com/daniel-mueller/rust-cli-tutorial [INFO] tweaked toml for git repo https://github.com/daniel-mueller/rust-cli-tutorial written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/daniel-mueller/rust-cli-tutorial 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] 7899d9fff97b7af6a37ed1c07ffae23e340c738267de8d7f5cd48374eaa237d1 [INFO] running `Command { std: "docker" "start" "-a" "7899d9fff97b7af6a37ed1c07ffae23e340c738267de8d7f5cd48374eaa237d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7899d9fff97b7af6a37ed1c07ffae23e340c738267de8d7f5cd48374eaa237d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7899d9fff97b7af6a37ed1c07ffae23e340c738267de8d7f5cd48374eaa237d1", kill_on_drop: false }` [INFO] [stdout] 7899d9fff97b7af6a37ed1c07ffae23e340c738267de8d7f5cd48374eaa237d1 [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] 1775dd04319bc00e742a98e0d5e104a1d9daecdcaf15ed303157a109d4759e42 [INFO] running `Command { std: "docker" "start" "-a" "1775dd04319bc00e742a98e0d5e104a1d9daecdcaf15ed303157a109d4759e42", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.46 [INFO] [stderr] Compiling proc-macro2 v0.4.24 [INFO] [stderr] Compiling autocfg v0.1.1 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling cc v1.0.28 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking rustc-demangle v0.1.13 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling serde v1.0.84 [INFO] [stderr] Compiling memchr v2.1.2 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.7.0 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.6.4 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling escargot v0.3.1 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking normalize-line-endings v0.2.2 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking rand_os v0.1.1 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Compiling syn v0.15.24 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking float-cmp v0.4.0 [INFO] [stderr] Checking tempfile v3.0.5 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.1.0/src/exec.rs:754:13 [INFO] [stdout] | [INFO] [stdout] 754 | / match dfa::Fsm::reverse( [INFO] [stdout] 755 | | &self.ro.dfa_reverse, [INFO] [stdout] 756 | | self.cache, [INFO] [stdout] 757 | | false, [INFO] [stdout] ... | [INFO] [stdout] 764 | | Quit => return Some(Quit), [INFO] [stdout] 765 | | }; [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" "1775dd04319bc00e742a98e0d5e104a1d9daecdcaf15ed303157a109d4759e42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1775dd04319bc00e742a98e0d5e104a1d9daecdcaf15ed303157a109d4759e42", kill_on_drop: false }` [INFO] [stdout] 1775dd04319bc00e742a98e0d5e104a1d9daecdcaf15ed303157a109d4759e42