[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-yzs15
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-yzs15" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-yzs15", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-yzs15'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c9df603b17cb37206a45727751b98942d177ef4
[INFO] checking LearningOS/rust-rustlings-yzs15 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-yzs15" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-yzs15 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/LearningOS/rust-rustlings-yzs15
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-yzs15
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-yzs15 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-yzs15 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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b4296e2508cfc3157e01b177fdfd48874e8152adbf1a447f0159e0137cdbe8c4
[INFO] running `Command { std: "docker" "start" "-a" "b4296e2508cfc3157e01b177fdfd48874e8152adbf1a447f0159e0137cdbe8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4296e2508cfc3157e01b177fdfd48874e8152adbf1a447f0159e0137cdbe8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4296e2508cfc3157e01b177fdfd48874e8152adbf1a447f0159e0137cdbe8c4", kill_on_drop: false }`
[INFO] [stdout] b4296e2508cfc3157e01b177fdfd48874e8152adbf1a447f0159e0137cdbe8c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] db6ad2810dd1bab412f2cc858812e3d42575924cc790d0d1827fdabc99b914a0
[INFO] running `Command { std: "docker" "start" "-a" "db6ad2810dd1bab412f2cc858812e3d42575924cc790d0d1827fdabc99b914a0", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "db6ad2810dd1bab412f2cc858812e3d42575924cc790d0d1827fdabc99b914a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6ad2810dd1bab412f2cc858812e3d42575924cc790d0d1827fdabc99b914a0", kill_on_drop: false }`
[INFO] [stdout] db6ad2810dd1bab412f2cc858812e3d42575924cc790d0d1827fdabc99b914a0
[INFO] checking LearningOS/rust-rustlings-yzs15 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-yzs15" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-yzs15 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/LearningOS/rust-rustlings-yzs15
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-yzs15
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-yzs15 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-yzs15 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0b5d42a445cb1f156139c45037d5aee43989409679f28504dfe51a4967cf1c91
[INFO] running `Command { std: "docker" "start" "-a" "0b5d42a445cb1f156139c45037d5aee43989409679f28504dfe51a4967cf1c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b5d42a445cb1f156139c45037d5aee43989409679f28504dfe51a4967cf1c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5d42a445cb1f156139c45037d5aee43989409679f28504dfe51a4967cf1c91", kill_on_drop: false }`
[INFO] [stdout] 0b5d42a445cb1f156139c45037d5aee43989409679f28504dfe51a4967cf1c91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cf13d92bc4644c130c328a9cebd7b421f51d69a01e60945def01c780eb47f323
[INFO] running `Command { std: "docker" "start" "-a" "cf13d92bc4644c130c328a9cebd7b421f51d69a01e60945def01c780eb47f323", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking serde v1.0.129
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.0/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[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 `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 334 |           buf_get_impl!(self, u16::from_be_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 354 |           buf_get_impl!(self, u16::from_le_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 374 |           buf_get_impl!(self, i16::from_be_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 394 |           buf_get_impl!(self, i16::from_le_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 414 |           buf_get_impl!(self, u32::from_be_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 434 |           buf_get_impl!(self, u32::from_le_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 454 |           buf_get_impl!(self, i32::from_be_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 474 |           buf_get_impl!(self, i32::from_le_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 494 |           buf_get_impl!(self, u64::from_be_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 514 |           buf_get_impl!(self, u64::from_le_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 534 |           buf_get_impl!(self, i64::from_be_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 554 |           buf_get_impl!(self, i64::from_le_bytes);
[INFO] [stdout]     |           --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 574 |           buf_get_impl!(self, u128::from_be_bytes);
[INFO] [stdout]     |           ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 594 |           buf_get_impl!(self, u128::from_le_bytes);
[INFO] [stdout]     |           ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 614 |           buf_get_impl!(self, i128::from_be_bytes);
[INFO] [stdout]     |           ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-1.2.1/src/buf/buf_impl.rs:23:9
[INFO] [stdout]     |
[INFO] [stdout] 23  | /         if let Some(ret) = ret {
[INFO] [stdout] 24  | |             // if the direct conversion was possible, advance and return
[INFO] [stdout] 25  | |             $this.advance(SIZE);
[INFO] [stdout] 26  | |             return ret;
[INFO] [stdout] ...   |
[INFO] [stdout] 31  | |             return $typ::$conv(buf);
[INFO] [stdout] 32  | |         }
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 634 |           buf_get_impl!(self, i128::from_le_bytes);
[INFO] [stdout]     |           ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `buf_get_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bytes` (lib) due to 17 previous errors
[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] [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" "cf13d92bc4644c130c328a9cebd7b421f51d69a01e60945def01c780eb47f323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf13d92bc4644c130c328a9cebd7b421f51d69a01e60945def01c780eb47f323", kill_on_drop: false }`
[INFO] [stdout] cf13d92bc4644c130c328a9cebd7b421f51d69a01e60945def01c780eb47f323