[INFO] cloning repository https://github.com/letaron/rumake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/letaron/rumake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletaron%2Frumake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletaron%2Frumake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7308b76dc5964c5579802ff5c0b3340e3741583e
[INFO] checking letaron/rumake against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletaron%2Frumake" "/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/letaron/rumake 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/letaron/rumake
[INFO] finished tweaking git repo https://github.com/letaron/rumake
[INFO] tweaked toml for git repo https://github.com/letaron/rumake written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/letaron/rumake 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 regex v1.2.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.10
[INFO] [stderr]   Downloaded shellwords v1.0.0
[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] 99f753b27422e2fa27962dfe1806f11864722bf5a966d330833233f7dc0dd556
[INFO] running `Command { std: "docker" "start" "-a" "99f753b27422e2fa27962dfe1806f11864722bf5a966d330833233f7dc0dd556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99f753b27422e2fa27962dfe1806f11864722bf5a966d330833233f7dc0dd556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99f753b27422e2fa27962dfe1806f11864722bf5a966d330833233f7dc0dd556", kill_on_drop: false }`
[INFO] [stdout] 99f753b27422e2fa27962dfe1806f11864722bf5a966d330833233f7dc0dd556
[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] bafbaf836ba32725199c1df0063031d9a7eeb57eb8ca127180986c3d9a943ecd
[INFO] running `Command { std: "docker" "start" "-a" "bafbaf836ba32725199c1df0063031d9a7eeb57eb8ca127180986c3d9a943ecd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking shellwords v1.0.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]     Checking rumake v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `shellwords` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use shellwords;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `shellwords` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `shellwords` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use shellwords;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `shellwords` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Task {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 20 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` 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: field `name` is never read
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Variable {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 26 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Variable` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Task {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 20 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` 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: field `name` is never read
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Variable {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 26 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Variable` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "bafbaf836ba32725199c1df0063031d9a7eeb57eb8ca127180986c3d9a943ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bafbaf836ba32725199c1df0063031d9a7eeb57eb8ca127180986c3d9a943ecd", kill_on_drop: false }`
[INFO] [stdout] bafbaf836ba32725199c1df0063031d9a7eeb57eb8ca127180986c3d9a943ecd
[INFO] checking letaron/rumake against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletaron%2Frumake" "/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/letaron/rumake 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/letaron/rumake
[INFO] finished tweaking git repo https://github.com/letaron/rumake
[INFO] tweaked toml for git repo https://github.com/letaron/rumake written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/letaron/rumake 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] b8cdcecdd82ca3da91451ca2aa80f2b1722b84d69cd0e4d50b36ca551dee9175
[INFO] running `Command { std: "docker" "start" "-a" "b8cdcecdd82ca3da91451ca2aa80f2b1722b84d69cd0e4d50b36ca551dee9175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8cdcecdd82ca3da91451ca2aa80f2b1722b84d69cd0e4d50b36ca551dee9175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8cdcecdd82ca3da91451ca2aa80f2b1722b84d69cd0e4d50b36ca551dee9175", kill_on_drop: false }`
[INFO] [stdout] b8cdcecdd82ca3da91451ca2aa80f2b1722b84d69cd0e4d50b36ca551dee9175
[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] 2048a50a90970564919bf6b30860fd69dcb489e8d4fe37504929e24c66af365b
[INFO] running `Command { std: "docker" "start" "-a" "2048a50a90970564919bf6b30860fd69dcb489e8d4fe37504929e24c66af365b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.2.0/src/exec.rs:795:13
[INFO] [stdout]     |
[INFO] [stdout] 795 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 796 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 797 | |                 self.cache,
[INFO] [stdout] 798 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 809 | |                 Quit => return Some(Quit),
[INFO] [stdout] 810 | |             };
[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] running `Command { std: "docker" "inspect" "2048a50a90970564919bf6b30860fd69dcb489e8d4fe37504929e24c66af365b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2048a50a90970564919bf6b30860fd69dcb489e8d4fe37504929e24c66af365b", kill_on_drop: false }`
[INFO] [stdout] 2048a50a90970564919bf6b30860fd69dcb489e8d4fe37504929e24c66af365b