[INFO] cloning repository https://github.com/gahooa/sud999
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gahooa/sud999" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgahooa%2Fsud999", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgahooa%2Fsud999'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e2c5634ad84350b265e41e1b6edd3c27d9d0bfa
[INFO] checking gahooa/sud999 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgahooa%2Fsud999" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gahooa/sud999 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/gahooa/sud999
[INFO] finished tweaking git repo https://github.com/gahooa/sud999
[INFO] tweaked toml for git repo https://github.com/gahooa/sud999 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gahooa/sud999 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]  Downloading crates ...
[INFO] [stderr]   Downloaded mlua v0.6.6
[INFO] [stderr]   Downloaded lua-src v543.1.0
[INFO] [stderr]   Downloaded luajit-src v210.3.1+restycd2285f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a7e66ee165d65f491c120b924c27ed6bbbbc08a8d23cfedfdaa77ce79cd0ddca
[INFO] running `Command { std: "docker" "start" "-a" "a7e66ee165d65f491c120b924c27ed6bbbbc08a8d23cfedfdaa77ce79cd0ddca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7e66ee165d65f491c120b924c27ed6bbbbc08a8d23cfedfdaa77ce79cd0ddca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e66ee165d65f491c120b924c27ed6bbbbc08a8d23cfedfdaa77ce79cd0ddca", kill_on_drop: false }`
[INFO] [stdout] a7e66ee165d65f491c120b924c27ed6bbbbc08a8d23cfedfdaa77ce79cd0ddca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1165d3af37322b882538e8dc343b13cf398a790765ba3db46bbea743ef7364ca
[INFO] running `Command { std: "docker" "start" "-a" "1165d3af37322b882538e8dc343b13cf398a790765ba3db46bbea743ef7364ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling lua-src v543.1.0
[INFO] [stderr]    Compiling luajit-src v210.3.1+restycd2285f
[INFO] [stderr]    Compiling mlua v0.6.6
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking rust5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `depth` is never read
[INFO] [stdout]   --> src/suduko/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Board{
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     depth: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Board` has a derived impl for the trait `Clone`, 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 `verbose` is never read
[INFO] [stdout]    --> src/suduko/mod.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 238 | struct Game {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 241 |     verbose: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `depth` is never read
[INFO] [stdout]   --> src/suduko/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Board{
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     depth: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Board` has a derived impl for the trait `Clone`, 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 `verbose` is never read
[INFO] [stdout]    --> src/suduko/mod.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 238 | struct Game {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 241 |     verbose: bool,
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "1165d3af37322b882538e8dc343b13cf398a790765ba3db46bbea743ef7364ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1165d3af37322b882538e8dc343b13cf398a790765ba3db46bbea743ef7364ca", kill_on_drop: false }`
[INFO] [stdout] 1165d3af37322b882538e8dc343b13cf398a790765ba3db46bbea743ef7364ca
[INFO] checking gahooa/sud999 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgahooa%2Fsud999" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gahooa/sud999 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/gahooa/sud999
[INFO] finished tweaking git repo https://github.com/gahooa/sud999
[INFO] tweaked toml for git repo https://github.com/gahooa/sud999 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gahooa/sud999 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 572efb76d84a9c5229808cdb6f190f757a8e71499abd6e3762beca8a4058b7d2
[INFO] running `Command { std: "docker" "start" "-a" "572efb76d84a9c5229808cdb6f190f757a8e71499abd6e3762beca8a4058b7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "572efb76d84a9c5229808cdb6f190f757a8e71499abd6e3762beca8a4058b7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "572efb76d84a9c5229808cdb6f190f757a8e71499abd6e3762beca8a4058b7d2", kill_on_drop: false }`
[INFO] [stdout] 572efb76d84a9c5229808cdb6f190f757a8e71499abd6e3762beca8a4058b7d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6cf97c09e7fc73eddd7bff5d417e63fdfb846f7863abd0019549d6d243ab1224
[INFO] running `Command { std: "docker" "start" "-a" "6cf97c09e7fc73eddd7bff5d417e63fdfb846f7863abd0019549d6d243ab1224", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling lua-src v543.1.0
[INFO] [stderr]    Compiling luajit-src v210.3.1+restycd2285f
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling mlua v0.6.6
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mlua-0.6.6/src/lua.rs:2298:14
[INFO] [stdout]      |
[INFO] [stdout] 2298 |         self.call(())?;
[INFO] [stdout]      |              ^^^^ cannot infer type of the type parameter `R` declared on the method `call`
[INFO] [stdout]      |
[INFO] [stdout]      = note: cannot satisfy `_: FromLuaMulti<'_>`
[INFO] [stdout]      = help: the following types implement trait `FromLuaMulti<'lua>`:
[INFO] [stdout]                ()
[INFO] [stdout]                (A,)
[INFO] [stdout]                (B, A)
[INFO] [stdout]                (B, C, A)
[INFO] [stdout]                (B, C, D, A)
[INFO] [stdout]                (B, C, D, E, A)
[INFO] [stdout]                (B, C, D, E, F, A)
[INFO] [stdout]                (B, C, D, E, F, G, A)
[INFO] [stdout]              and 11 others
[INFO] [stdout] note: required by a bound in `Chunk::<'lua, 'a>::call`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mlua-0.6.6/src/lua.rs:2376:41
[INFO] [stdout]      |
[INFO] [stdout] 2376 |     pub fn call<A: ToLuaMulti<'lua>, R: FromLuaMulti<'lua>>(self, args: A) -> Result<R> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^^^^^ required by this bound in `Chunk::<'lua, 'a>::call`
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]      |
[INFO] [stdout] 2298 |         self.call::<(), R>(())?;
[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] [stderr] error: could not compile `mlua` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6cf97c09e7fc73eddd7bff5d417e63fdfb846f7863abd0019549d6d243ab1224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cf97c09e7fc73eddd7bff5d417e63fdfb846f7863abd0019549d6d243ab1224", kill_on_drop: false }`
[INFO] [stdout] 6cf97c09e7fc73eddd7bff5d417e63fdfb846f7863abd0019549d6d243ab1224