[INFO] cloning repository https://github.com/jugglerchris/rlua_luarocks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jugglerchris/rlua_luarocks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjugglerchris%2Frlua_luarocks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjugglerchris%2Frlua_luarocks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56e6a6d7233949d7c9df925dd34d0b1caa1a212e
[INFO] checking jugglerchris/rlua_luarocks against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjugglerchris%2Frlua_luarocks" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jugglerchris/rlua_luarocks
[INFO] finished tweaking git repo https://github.com/jugglerchris/rlua_luarocks
[INFO] tweaked toml for git repo https://github.com/jugglerchris/rlua_luarocks written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jugglerchris/rlua_luarocks on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jugglerchris/rlua_luarocks 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rlua-lua54-sys v0.1.6
[INFO] [stderr]   Downloaded rlua v0.19.7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 304096e515886399440fc7051b39b8ba9e6ffd133f21a3a2685a378950b5a5c4
[INFO] running `Command { std: "docker" "start" "-a" "304096e515886399440fc7051b39b8ba9e6ffd133f21a3a2685a378950b5a5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304096e515886399440fc7051b39b8ba9e6ffd133f21a3a2685a378950b5a5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304096e515886399440fc7051b39b8ba9e6ffd133f21a3a2685a378950b5a5c4", kill_on_drop: false }`
[INFO] [stdout] 304096e515886399440fc7051b39b8ba9e6ffd133f21a3a2685a378950b5a5c4
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dba031dc29133c07304fbccbfd8056f638a3fdcf1a4c4205919f687e8701de0
[INFO] running `Command { std: "docker" "start" "-a" "2dba031dc29133c07304fbccbfd8056f638a3fdcf1a4c4205919f687e8701de0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlua v0.19.7
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling rlua_luarocks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rlua-lua54-sys v0.1.6
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stdout] warning: unused import: `Value`
[INFO] [stdout]  --> src/main.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rlua::{Lua, MultiValue, Value, ToLua};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Value`
[INFO] [stdout]  --> src/main.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rlua::{Lua, MultiValue, Value, ToLua};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     std::mem::forget(_funcs);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^------^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&[*const extern "C" fn()]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 11 -     std::mem::forget(_funcs);
[INFO] [stdout] 11 +     let _ = _funcs;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     std::mem::forget(_funcs);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^------^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&[*const extern "C" fn()]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 11 -     std::mem::forget(_funcs);
[INFO] [stdout] 11 +     let _ = _funcs;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.61s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rlua v0.19.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "2dba031dc29133c07304fbccbfd8056f638a3fdcf1a4c4205919f687e8701de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dba031dc29133c07304fbccbfd8056f638a3fdcf1a4c4205919f687e8701de0", kill_on_drop: false }`
[INFO] [stdout] 2dba031dc29133c07304fbccbfd8056f638a3fdcf1a4c4205919f687e8701de0