[INFO] fetching crate lua_cdtk 0.1.0...
[INFO] checking lua_cdtk-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate lua_cdtk 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate lua_cdtk 0.1.0 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 crates.io crate lua_cdtk 0.1.0
[INFO] finished tweaking crates.io crate lua_cdtk 0.1.0
[INFO] tweaked toml for crates.io crate lua_cdtk 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate lua_cdtk 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colorize v0.1.0
[INFO] [stderr]   Downloaded mlua v0.8.3
[INFO] [stderr]   Downloaded lua-src v544.0.1
[INFO] [stderr]   Downloaded luajit-src v210.4.1+restyaa7a722
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 04a91b074a01a4469b077df39e09f81ad57c7afa0f1975622d4aaea90559a94d
[INFO] running `Command { std: "docker" "start" "-a" "04a91b074a01a4469b077df39e09f81ad57c7afa0f1975622d4aaea90559a94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04a91b074a01a4469b077df39e09f81ad57c7afa0f1975622d4aaea90559a94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a91b074a01a4469b077df39e09f81ad57c7afa0f1975622d4aaea90559a94d", kill_on_drop: false }`
[INFO] [stdout] 04a91b074a01a4469b077df39e09f81ad57c7afa0f1975622d4aaea90559a94d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d5396100f8b7ef269c0acf3bb9e616d4b578be5c129001fb329f27c1ebcc4074
[INFO] running `Command { std: "docker" "start" "-a" "d5396100f8b7ef269c0acf3bb9e616d4b578be5c129001fb329f27c1ebcc4074", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking colorize v0.1.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking num-bigint v0.4.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling luajit-src v210.4.1+restyaa7a722
[INFO] [stderr]    Compiling lua-src v544.0.1
[INFO] [stderr]    Compiling mlua v0.8.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking lua_cdtk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num::{self};
[INFO] [stdout]   |           ^^^^ the item `num` 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 `num` is imported redundantly
[INFO] [stdout]  --> src/main.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num::{self};
[INFO] [stdout]   |           ^^^^ the item `num` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.14s
[INFO] running `Command { std: "docker" "inspect" "d5396100f8b7ef269c0acf3bb9e616d4b578be5c129001fb329f27c1ebcc4074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5396100f8b7ef269c0acf3bb9e616d4b578be5c129001fb329f27c1ebcc4074", kill_on_drop: false }`
[INFO] [stdout] d5396100f8b7ef269c0acf3bb9e616d4b578be5c129001fb329f27c1ebcc4074
[INFO] checking lua_cdtk-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate lua_cdtk 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate lua_cdtk 0.1.0 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 crates.io crate lua_cdtk 0.1.0
[INFO] finished tweaking crates.io crate lua_cdtk 0.1.0
[INFO] tweaked toml for crates.io crate lua_cdtk 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate lua_cdtk 0.1.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 33631d019b71880dc6786bfe5b7be6b6d2cec8fffcb9c73221aaaa10c9009d0a
[INFO] running `Command { std: "docker" "start" "-a" "33631d019b71880dc6786bfe5b7be6b6d2cec8fffcb9c73221aaaa10c9009d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33631d019b71880dc6786bfe5b7be6b6d2cec8fffcb9c73221aaaa10c9009d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33631d019b71880dc6786bfe5b7be6b6d2cec8fffcb9c73221aaaa10c9009d0a", kill_on_drop: false }`
[INFO] [stdout] 33631d019b71880dc6786bfe5b7be6b6d2cec8fffcb9c73221aaaa10c9009d0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c002fa204d359b6c9480564ccca77b32aecec3ed9a3ce78c60d52c346aa54e10
[INFO] running `Command { std: "docker" "start" "-a" "c002fa204d359b6c9480564ccca77b32aecec3ed9a3ce78c60d52c346aa54e10", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking colorize v0.1.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling lua-src v544.0.1
[INFO] [stderr]    Compiling luajit-src v210.4.1+restyaa7a722
[INFO] [stderr]    Compiling mlua v0.8.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mlua-0.8.3/src/chunk.rs:289:14
[INFO] [stdout]     |
[INFO] [stdout] 289 |         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-0.8.3/src/chunk.rs:354:41
[INFO] [stdout]     |
[INFO] [stdout] 354 |     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] 289 |         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" "c002fa204d359b6c9480564ccca77b32aecec3ed9a3ce78c60d52c346aa54e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c002fa204d359b6c9480564ccca77b32aecec3ed9a3ce78c60d52c346aa54e10", kill_on_drop: false }`
[INFO] [stdout] c002fa204d359b6c9480564ccca77b32aecec3ed9a3ce78c60d52c346aa54e10