[INFO] cloning repository https://github.com/danielq987/todo-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielq987/todo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielq987%2Ftodo-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielq987%2Ftodo-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3533c85f9f9796397f6105a475c423c8f6035803 [INFO] checking danielq987/todo-rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielq987%2Ftodo-rust" "/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/danielq987/todo-rust 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/danielq987/todo-rust [INFO] finished tweaking git repo https://github.com/danielq987/todo-rust [INFO] tweaked toml for git repo https://github.com/danielq987/todo-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/danielq987/todo-rust 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 tabular v0.1.4 [INFO] [stderr] Downloaded confy v0.4.0 [INFO] [stderr] Downloaded yaml-rust v0.3.5 [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] a6d639d178338c67243f826497bbb9a92096135bb73bc6552fe45c0e93c42b15 [INFO] running `Command { std: "docker" "start" "-a" "a6d639d178338c67243f826497bbb9a92096135bb73bc6552fe45c0e93c42b15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a6d639d178338c67243f826497bbb9a92096135bb73bc6552fe45c0e93c42b15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6d639d178338c67243f826497bbb9a92096135bb73bc6552fe45c0e93c42b15", kill_on_drop: false }` [INFO] [stdout] a6d639d178338c67243f826497bbb9a92096135bb73bc6552fe45c0e93c42b15 [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] 08c80084a0b3f577f5f992861f7949eac5dab2fd745074cea510f615fed363fc [INFO] running `Command { std: "docker" "start" "-a" "08c80084a0b3f577f5f992861f7949eac5dab2fd745074cea510f615fed363fc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking tabular v0.1.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking dirs-sys v0.3.6 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking directories v2.0.2 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking serde v1.0.130 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking confy v0.4.0 [INFO] [stderr] Checking todo-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `project`, `context`, `creation_date`, `completion_date`, and `due` are never read [INFO] [stdout] --> src/lib.rs:55:2 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Todo { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 55 | project: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 56 | context: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 57 | is_completed: bool, [INFO] [stdout] 58 | creation_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 59 | completion_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 60 | due: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Todo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `to_string` is never used [INFO] [stdout] --> src/lib.rs:117:5 [INFO] [stdout] | [INFO] [stdout] 63 | impl Todo { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 117 | fn to_string(&self) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `project`, `context`, `creation_date`, `completion_date`, and `due` are never read [INFO] [stdout] --> src/lib.rs:55:2 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Todo { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 55 | project: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 56 | context: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 57 | is_completed: bool, [INFO] [stdout] 58 | creation_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 59 | completion_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 60 | due: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Todo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `to_string` is never used [INFO] [stdout] --> src/lib.rs:117:5 [INFO] [stdout] | [INFO] [stdout] 63 | impl Todo { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 117 | fn to_string(&self) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | mod lib; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | mod lib; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `project`, `context`, `creation_date`, `completion_date`, and `due` are never read [INFO] [stdout] --> src/lib.rs:55:2 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Todo { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 55 | project: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 56 | context: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 57 | is_completed: bool, [INFO] [stdout] 58 | creation_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 59 | completion_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 60 | due: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Todo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `to_string` is never used [INFO] [stdout] --> src/lib.rs:117:5 [INFO] [stdout] | [INFO] [stdout] 63 | impl Todo { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 117 | fn to_string(&self) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `project`, `context`, `creation_date`, `completion_date`, and `due` are never read [INFO] [stdout] --> src/lib.rs:55:2 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Todo { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 55 | project: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 56 | context: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 57 | is_completed: bool, [INFO] [stdout] 58 | creation_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 59 | completion_date: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 60 | due: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Todo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `to_string` is never used [INFO] [stdout] --> src/lib.rs:117:5 [INFO] [stdout] | [INFO] [stdout] 63 | impl Todo { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 117 | fn to_string(&self) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.28s [INFO] running `Command { std: "docker" "inspect" "08c80084a0b3f577f5f992861f7949eac5dab2fd745074cea510f615fed363fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08c80084a0b3f577f5f992861f7949eac5dab2fd745074cea510f615fed363fc", kill_on_drop: false }` [INFO] [stdout] 08c80084a0b3f577f5f992861f7949eac5dab2fd745074cea510f615fed363fc [INFO] checking danielq987/todo-rust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielq987%2Ftodo-rust" "/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/danielq987/todo-rust 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/danielq987/todo-rust [INFO] finished tweaking git repo https://github.com/danielq987/todo-rust [INFO] tweaked toml for git repo https://github.com/danielq987/todo-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/danielq987/todo-rust 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] cea72458cce544b8e966b3973860ea01b68c3a2538d0cd9abe93c59ff20ed2c0 [INFO] running `Command { std: "docker" "start" "-a" "cea72458cce544b8e966b3973860ea01b68c3a2538d0cd9abe93c59ff20ed2c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cea72458cce544b8e966b3973860ea01b68c3a2538d0cd9abe93c59ff20ed2c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cea72458cce544b8e966b3973860ea01b68c3a2538d0cd9abe93c59ff20ed2c0", kill_on_drop: false }` [INFO] [stdout] cea72458cce544b8e966b3973860ea01b68c3a2538d0cd9abe93c59ff20ed2c0 [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] 35adcb96a3486c0071dd91e1267c8eea253241420ff18f6324dfb1a246c0f695 [INFO] running `Command { std: "docker" "start" "-a" "35adcb96a3486c0071dd91e1267c8eea253241420ff18f6324dfb1a246c0f695", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking tabular v0.1.4 [INFO] [stderr] Checking regex v1.5.4 [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] [stderr] Compiling quote v1.0.9 [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" "35adcb96a3486c0071dd91e1267c8eea253241420ff18f6324dfb1a246c0f695", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35adcb96a3486c0071dd91e1267c8eea253241420ff18f6324dfb1a246c0f695", kill_on_drop: false }` [INFO] [stdout] 35adcb96a3486c0071dd91e1267c8eea253241420ff18f6324dfb1a246c0f695