[INFO] cloning repository https://github.com/Joakker/lua-json5
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Joakker/lua-json5" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoakker%2Flua-json5", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoakker%2Flua-json5'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 014fcab8093b48b3932dd0d51ae2d98bbb578d67
[INFO] checking Joakker/lua-json5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoakker%2Flua-json5" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Joakker/lua-json5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Joakker/lua-json5
[INFO] finished tweaking git repo https://github.com/Joakker/lua-json5
[INFO] tweaked toml for git repo https://github.com/Joakker/lua-json5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Joakker/lua-json5 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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 mlua_derive v0.9.0
[INFO] [stderr]   Downloaded mlua-sys v0.3.2
[INFO] [stderr]   Downloaded mlua v0.9.1
[INFO] [stderr]   Downloaded syn v2.0.33
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8dc89cb3d5fa1cbc95edcd667c7dad36ee8f3c5fc84f2a20a37a7aa1fd71245
[INFO] running `Command { std: "docker" "start" "-a" "b8dc89cb3d5fa1cbc95edcd667c7dad36ee8f3c5fc84f2a20a37a7aa1fd71245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8dc89cb3d5fa1cbc95edcd667c7dad36ee8f3c5fc84f2a20a37a7aa1fd71245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8dc89cb3d5fa1cbc95edcd667c7dad36ee8f3c5fc84f2a20a37a7aa1fd71245", kill_on_drop: false }`
[INFO] [stdout] b8dc89cb3d5fa1cbc95edcd667c7dad36ee8f3c5fc84f2a20a37a7aa1fd71245
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0607a7a944254095065bd99b2a84c84602eff8b36229547b91843fb46f3db713
[INFO] running `Command { std: "docker" "start" "-a" "0607a7a944254095065bd99b2a84c84602eff8b36229547b91843fb46f3db713", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]     Checking bstr v1.6.2
[INFO] [stderr]    Compiling aho-corasick v1.0.5
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling mlua-sys v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling mlua_derive v0.9.0
[INFO] [stderr]     Checking mlua v0.9.1
[INFO] [stderr]     Checking lua-json5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `Command { std: "docker" "inspect" "0607a7a944254095065bd99b2a84c84602eff8b36229547b91843fb46f3db713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0607a7a944254095065bd99b2a84c84602eff8b36229547b91843fb46f3db713", kill_on_drop: false }`
[INFO] [stdout] 0607a7a944254095065bd99b2a84c84602eff8b36229547b91843fb46f3db713
[INFO] checking Joakker/lua-json5 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoakker%2Flua-json5" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Joakker/lua-json5 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Joakker/lua-json5
[INFO] finished tweaking git repo https://github.com/Joakker/lua-json5
[INFO] tweaked toml for git repo https://github.com/Joakker/lua-json5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Joakker/lua-json5 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74ea62bc6b1350cf564b38510f292fca59aaab80468f8e9dac4f0d086a661d8d
[INFO] running `Command { std: "docker" "start" "-a" "74ea62bc6b1350cf564b38510f292fca59aaab80468f8e9dac4f0d086a661d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74ea62bc6b1350cf564b38510f292fca59aaab80468f8e9dac4f0d086a661d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ea62bc6b1350cf564b38510f292fca59aaab80468f8e9dac4f0d086a661d8d", kill_on_drop: false }`
[INFO] [stdout] 74ea62bc6b1350cf564b38510f292fca59aaab80468f8e9dac4f0d086a661d8d
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e873556b1f17df42b4635d3d9b83ccb04dbf9c94086b16cbe683bb18ab98950e
[INFO] running `Command { std: "docker" "start" "-a" "e873556b1f17df42b4635d3d9b83ccb04dbf9c94086b16cbe683bb18ab98950e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling aho-corasick v1.0.5
[INFO] [stderr]     Checking bstr v1.6.2
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling mlua-sys v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling mlua_derive v0.9.0
[INFO] [stderr]     Checking mlua v0.9.1
[INFO] [stdout] error[E0277]: the trait bound `!: FromLuaMulti<'_>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mlua-0.9.1/src/chunk.rs:318:14
[INFO] [stdout]     |
[INFO] [stdout] 318 |         self.call(())?;
[INFO] [stdout]     |              ^^^^ the trait `FromLua<'_>` is not implemented for `!`, which is required by `!: FromLuaMulti<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other 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 for `!` to implement `FromLuaMulti<'_>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mlua-0.9.1/src/multi.rs:58:30
[INFO] [stdout]     |
[INFO] [stdout] 58  | impl<'lua, T: FromLua<'lua>> FromLuaMulti<'lua> for T {
[INFO] [stdout]     |               -------------  ^^^^^^^^^^^^^^^^^^     ^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               unsatisfied trait bound introduced here
[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-0.9.1/src/chunk.rs:379:43
[INFO] [stdout]     |
[INFO] [stdout] 379 |     pub fn call<A: IntoLuaMulti<'lua>, R: FromLuaMulti<'lua>>(self, args: A) -> Result<R> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^ required by this bound in `Chunk::<'lua, 'a>::call`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mlua` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e873556b1f17df42b4635d3d9b83ccb04dbf9c94086b16cbe683bb18ab98950e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e873556b1f17df42b4635d3d9b83ccb04dbf9c94086b16cbe683bb18ab98950e", kill_on_drop: false }`
[INFO] [stdout] e873556b1f17df42b4635d3d9b83ccb04dbf9c94086b16cbe683bb18ab98950e