[INFO] cloning repository https://github.com/FuzzyLitchi/lua
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FuzzyLitchi/lua" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuzzyLitchi%2Flua", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuzzyLitchi%2Flua'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f98778d122dd540a55122e881b1a18a30cf453f
[INFO] checking FuzzyLitchi/lua against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuzzyLitchi%2Flua" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FuzzyLitchi/lua on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FuzzyLitchi/lua
[INFO] finished tweaking git repo https://github.com/FuzzyLitchi/lua
[INFO] tweaked toml for git repo https://github.com/FuzzyLitchi/lua written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/FuzzyLitchi/lua already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5e34f551b4e2bcaa35ded164e583353fda83abae1a868d640bafba727573291
[INFO] running `Command { std: "docker" "start" "-a" "d5e34f551b4e2bcaa35ded164e583353fda83abae1a868d640bafba727573291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5e34f551b4e2bcaa35ded164e583353fda83abae1a868d640bafba727573291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e34f551b4e2bcaa35ded164e583353fda83abae1a868d640bafba727573291", kill_on_drop: false }`
[INFO] [stdout] d5e34f551b4e2bcaa35ded164e583353fda83abae1a868d640bafba727573291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e66b31d6fdb0276cfa25a1e99e9911df21f4b3c5b950b07bccddc3f38122ac64
[INFO] running `Command { std: "docker" "start" "-a" "e66b31d6fdb0276cfa25a1e99e9911df21f4b3c5b950b07bccddc3f38122ac64", kill_on_drop: false }`
[INFO] [stderr]     Checking lua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/tokenizer.rs:90:49
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn try_match_token(&mut self, matcher: &Matcher) -> Option<Token> {
[INFO] [stdout]    |                                                 ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:29:22
[INFO] [stdout]    |
[INFO] [stdout] 29 |     matchers: Vec<Rc<Matcher>>,
[INFO] [stdout]    |                      ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:50:39
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn matchers(&self) -> &Vec<Rc<Matcher>> {
[INFO] [stdout]    |                                       ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:54:51
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn matchers_mut(&mut self) -> &mut Vec<Rc<Matcher>> {
[INFO] [stdout]    |                                                   ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/tokenizer.rs:90:49
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn try_match_token(&mut self, matcher: &Matcher) -> Option<Token> {
[INFO] [stdout]    |                                                 ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:29:22
[INFO] [stdout]    |
[INFO] [stdout] 29 |     matchers: Vec<Rc<Matcher>>,
[INFO] [stdout]    |                      ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:50:39
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn matchers(&self) -> &Vec<Rc<Matcher>> {
[INFO] [stdout]    |                                       ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:54:51
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn matchers_mut(&mut self) -> &mut Vec<Rc<Matcher>> {
[INFO] [stdout]    |                                                   ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matchers`
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn matchers(&self) -> &Vec<Rc<Matcher>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stdout] warning: associated function is never used: `matchers`
[INFO] [stdout]   --> src/lua/lexer/lexer.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn matchers(&self) -> &Vec<Rc<Matcher>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e66b31d6fdb0276cfa25a1e99e9911df21f4b3c5b950b07bccddc3f38122ac64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e66b31d6fdb0276cfa25a1e99e9911df21f4b3c5b950b07bccddc3f38122ac64", kill_on_drop: false }`
[INFO] [stdout] e66b31d6fdb0276cfa25a1e99e9911df21f4b3c5b950b07bccddc3f38122ac64