[INFO] cloning repository https://github.com/rp-/vedirect-prom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rp-/vedirect-prom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frp-%2Fvedirect-prom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frp-%2Fvedirect-prom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a12d398bb26e433f7093dce31df71bb69e5e90f2
[INFO] checking rp-/vedirect-prom against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frp-%2Fvedirect-prom" "/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/rp-/vedirect-prom 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/rp-/vedirect-prom
[INFO] finished tweaking git repo https://github.com/rp-/vedirect-prom
[INFO] tweaked toml for git repo https://github.com/rp-/vedirect-prom written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rp-/vedirect-prom 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny_http v0.11.0
[INFO] [stderr]   Downloaded vedirect v0.2.0
[INFO] [stderr]   Downloaded serialport v4.1.0
[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] df814e7b43932eb410ba798f147bca25c2e63ca034f9f13a6bc8d26f88253675
[INFO] running `Command { std: "docker" "start" "-a" "df814e7b43932eb410ba798f147bca25c2e63ca034f9f13a6bc8d26f88253675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df814e7b43932eb410ba798f147bca25c2e63ca034f9f13a6bc8d26f88253675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df814e7b43932eb410ba798f147bca25c2e63ca034f9f13a6bc8d26f88253675", kill_on_drop: false }`
[INFO] [stdout] df814e7b43932eb410ba798f147bca25c2e63ca034f9f13a6bc8d26f88253675
[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] 9afdff8c0607a134bd0b6db2e81c882880bd1f8a375b37188e58392f06782ba0
[INFO] running `Command { std: "docker" "start" "-a" "9afdff8c0607a134bd0b6db2e81c882880bd1f8a375b37188e58392f06782ba0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking dtoa v1.0.2
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking strum v0.24.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking tiny_http v0.11.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling strum_macros v0.24.0
[INFO] [stderr]    Compiling prometheus-client-derive-text-encode v0.2.0
[INFO] [stderr]     Checking prometheus-client v0.15.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking serialport v4.1.0
[INFO] [stderr]     Checking vedirect v0.2.0
[INFO] [stderr]     Checking vedirect-prom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "9afdff8c0607a134bd0b6db2e81c882880bd1f8a375b37188e58392f06782ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9afdff8c0607a134bd0b6db2e81c882880bd1f8a375b37188e58392f06782ba0", kill_on_drop: false }`
[INFO] [stdout] 9afdff8c0607a134bd0b6db2e81c882880bd1f8a375b37188e58392f06782ba0
[INFO] checking rp-/vedirect-prom against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frp-%2Fvedirect-prom" "/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/rp-/vedirect-prom 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] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/rp-/vedirect-prom
[INFO] finished tweaking git repo https://github.com/rp-/vedirect-prom
[INFO] tweaked toml for git repo https://github.com/rp-/vedirect-prom written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rp-/vedirect-prom 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] 01af8d6f70805e27c8f87a50396797cd88b6698e58cff74240b194e289f42fd4
[INFO] running `Command { std: "docker" "start" "-a" "01af8d6f70805e27c8f87a50396797cd88b6698e58cff74240b194e289f42fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01af8d6f70805e27c8f87a50396797cd88b6698e58cff74240b194e289f42fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01af8d6f70805e27c8f87a50396797cd88b6698e58cff74240b194e289f42fd4", kill_on_drop: false }`
[INFO] [stdout] 01af8d6f70805e27c8f87a50396797cd88b6698e58cff74240b194e289f42fd4
[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] a09c4d651a367bc1a12704cf1c998cd7a418c864184fd4298318ff5d09ac964d
[INFO] running `Command { std: "docker" "start" "-a" "a09c4d651a367bc1a12704cf1c998cd7a418c864184fd4298318ff5d09ac964d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking dtoa v1.0.2
[INFO] [stderr]     Checking strum v0.24.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking tiny_http v0.11.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling strum_macros v0.24.0
[INFO] [stderr]    Compiling prometheus-client-derive-text-encode v0.2.0
[INFO] [stderr]     Checking prometheus-client v0.15.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking serialport v4.1.0
[INFO] [stderr]     Checking vedirect v0.2.0
[INFO] [stderr]     Checking vedirect-prom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed for `JoinHandle<_>`
[INFO] [stdout]    --> src/main.rs:89:9
[INFO] [stdout]     |
[INFO] [stdout] 89  |       let vedirect_reader_handle = thread::spawn(move || {
[INFO] [stdout]     |  _________^^^^^^^^^^^^^^^^^^^^^^___-
[INFO] [stdout] 90  | |         println!("port: {}", vedirect_sport);
[INFO] [stdout] 91  | |
[INFO] [stdout] 92  | |         let mut port = serialport::new(vedirect_sport, 19_200)
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |         }
[INFO] [stdout] 177 | |     });
[INFO] [stdout]     | |______- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: consider giving `vedirect_reader_handle` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]     |
[INFO] [stdout] 89  |     let vedirect_reader_handle: JoinHandle<_> = thread::spawn(move || {
[INFO] [stdout]     |                               +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `JoinHandle<_>`
[INFO] [stdout]    --> src/main.rs:89:9
[INFO] [stdout]     |
[INFO] [stdout] 89  |       let vedirect_reader_handle = thread::spawn(move || {
[INFO] [stdout]     |  _________^^^^^^^^^^^^^^^^^^^^^^___-
[INFO] [stdout] 90  | |         println!("port: {}", vedirect_sport);
[INFO] [stdout] 91  | |
[INFO] [stdout] 92  | |         let mut port = serialport::new(vedirect_sport, 19_200)
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |         }
[INFO] [stdout] 177 | |     });
[INFO] [stdout]     | |______- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: consider giving `vedirect_reader_handle` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]     |
[INFO] [stdout] 89  |     let vedirect_reader_handle: JoinHandle<_> = thread::spawn(move || {
[INFO] [stdout]     |                               +++++++++++++++
[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 E0283`.
[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 E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vedirect-prom` (bin "vedirect-prom") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `vedirect-prom` (bin "vedirect-prom" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a09c4d651a367bc1a12704cf1c998cd7a418c864184fd4298318ff5d09ac964d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a09c4d651a367bc1a12704cf1c998cd7a418c864184fd4298318ff5d09ac964d", kill_on_drop: false }`
[INFO] [stdout] a09c4d651a367bc1a12704cf1c998cd7a418c864184fd4298318ff5d09ac964d