[INFO] cloning repository https://github.com/ayush-shrivastava003/neptune
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ayush-shrivastava003/neptune" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayush-shrivastava003%2Fneptune", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayush-shrivastava003%2Fneptune'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe39bac9d672fd1cc196a84ba38271af5be35a5d
[INFO] checking ayush-shrivastava003/neptune against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayush-shrivastava003%2Fneptune" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ayush-shrivastava003/neptune 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/ayush-shrivastava003/neptune
[INFO] finished tweaking git repo https://github.com/ayush-shrivastava003/neptune
[INFO] tweaked toml for git repo https://github.com/ayush-shrivastava003/neptune written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ayush-shrivastava003/neptune 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 line-col v0.2.1
[INFO] [stderr]   Downloaded fd-lock v3.0.6
[INFO] [stderr]   Downloaded io-lifetimes v0.7.3
[INFO] [stderr]   Downloaded rustix v0.35.9
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded rustyline v10.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f5d1082b150f42b244e77c5712d5ecc8339e1d8e0521d565f6eecb29070fdabe
[INFO] running `Command { std: "docker" "start" "-a" "f5d1082b150f42b244e77c5712d5ecc8339e1d8e0521d565f6eecb29070fdabe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5d1082b150f42b244e77c5712d5ecc8339e1d8e0521d565f6eecb29070fdabe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d1082b150f42b244e77c5712d5ecc8339e1d8e0521d565f6eecb29070fdabe", kill_on_drop: false }`
[INFO] [stdout] f5d1082b150f42b244e77c5712d5ecc8339e1d8e0521d565f6eecb29070fdabe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 10b104114abf123995473e505652ef72dbe2a65e0c62a67bc956a4a26e58be21
[INFO] running `Command { std: "docker" "start" "-a" "10b104114abf123995473e505652ef72dbe2a65e0c62a67bc956a4a26e58be21", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling io-lifetimes v0.7.3
[INFO] [stderr]    Compiling rustix v0.35.9
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking line-col v0.2.1
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fd-lock v3.0.6
[INFO] [stderr]     Checking rustyline v10.0.0
[INFO] [stderr]     Checking neptune v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "10b104114abf123995473e505652ef72dbe2a65e0c62a67bc956a4a26e58be21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b104114abf123995473e505652ef72dbe2a65e0c62a67bc956a4a26e58be21", kill_on_drop: false }`
[INFO] [stdout] 10b104114abf123995473e505652ef72dbe2a65e0c62a67bc956a4a26e58be21
[INFO] checking ayush-shrivastava003/neptune against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayush-shrivastava003%2Fneptune" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ayush-shrivastava003/neptune 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/ayush-shrivastava003/neptune
[INFO] finished tweaking git repo https://github.com/ayush-shrivastava003/neptune
[INFO] tweaked toml for git repo https://github.com/ayush-shrivastava003/neptune written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ayush-shrivastava003/neptune 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b7353534d055247bb8e2a375d20a0ccf3c580436b05600727a6a7bfe4934216f
[INFO] running `Command { std: "docker" "start" "-a" "b7353534d055247bb8e2a375d20a0ccf3c580436b05600727a6a7bfe4934216f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7353534d055247bb8e2a375d20a0ccf3c580436b05600727a6a7bfe4934216f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7353534d055247bb8e2a375d20a0ccf3c580436b05600727a6a7bfe4934216f", kill_on_drop: false }`
[INFO] [stdout] b7353534d055247bb8e2a375d20a0ccf3c580436b05600727a6a7bfe4934216f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fe43031f20ccc65c8c6a0136741c8a49f4d9a5fc46fc4a592f32118184bfb926
[INFO] running `Command { std: "docker" "start" "-a" "fe43031f20ccc65c8c6a0136741c8a49f4d9a5fc46fc4a592f32118184bfb926", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling io-lifetimes v0.7.3
[INFO] [stderr]    Compiling rustix v0.35.9
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking line-col v0.2.1
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fd-lock v3.0.6
[INFO] [stderr]     Checking rustyline v10.0.0
[INFO] [stderr]     Checking neptune v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]   --> src/function.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |                         return Ok(v)
[INFO] [stdout]    |                         ^^^^^^^^^^^^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]   --> src/function.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |                         return Ok(v)
[INFO] [stdout]    |                         ^^^^^^^^^^^^ cannot satisfy `_ -> _`
[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 E0284`.
[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 E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neptune` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `neptune` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fe43031f20ccc65c8c6a0136741c8a49f4d9a5fc46fc4a592f32118184bfb926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe43031f20ccc65c8c6a0136741c8a49f4d9a5fc46fc4a592f32118184bfb926", kill_on_drop: false }`
[INFO] [stdout] fe43031f20ccc65c8c6a0136741c8a49f4d9a5fc46fc4a592f32118184bfb926