[INFO] cloning repository https://github.com/Lapz/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lapz/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab169a8937bcb2afaa414e492495dc0880999425
[INFO] testing Lapz/lox against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Flox" "/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/Lapz/lox on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lapz/lox
[INFO] finished tweaking git repo https://github.com/Lapz/lox
[INFO] tweaked toml for git repo https://github.com/Lapz/lox written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Lapz/lox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] addd0ca6266ae7bd9b24e275b9ba9c787d5a3dfa25a6beb223890c683b565154
[INFO] running `Command { std: "docker" "start" "-a" "addd0ca6266ae7bd9b24e275b9ba9c787d5a3dfa25a6beb223890c683b565154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "addd0ca6266ae7bd9b24e275b9ba9c787d5a3dfa25a6beb223890c683b565154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "addd0ca6266ae7bd9b24e275b9ba9c787d5a3dfa25a6beb223890c683b565154", kill_on_drop: false }`
[INFO] [stdout] addd0ca6266ae7bd9b24e275b9ba9c787d5a3dfa25a6beb223890c683b565154
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d4e2141dc0a605c6eaf2daa01eeef106266e347c57f01e02a33a5cb39579f707
[INFO] running `Command { std: "docker" "start" "-a" "d4e2141dc0a605c6eaf2daa01eeef106266e347c57f01e02a33a5cb39579f707", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/compiler.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |     prefix: HashMap<RuleToken, &'a PrefixParser>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn PrefixParser`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/compiler.rs:23:35
[INFO] [stdout]    |
[INFO] [stdout] 23 |     infix: HashMap<RuleToken, &'a InfixParser>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn InfixParser`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `IndexParselet: InfixParser` is not satisfied
[INFO] [stdout]   --> src/compiler.rs:96:44
[INFO] [stdout]    |
[INFO] [stdout] 96 |         compiler.infix(RuleToken::LBracket,&IndexParselet(Precedence::Call));
[INFO] [stdout]    |                  -----                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `InfixParser` is not implemented for `IndexParselet`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  required by a bound introduced by this call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d4e2141dc0a605c6eaf2daa01eeef106266e347c57f01e02a33a5cb39579f707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e2141dc0a605c6eaf2daa01eeef106266e347c57f01e02a33a5cb39579f707", kill_on_drop: false }`
[INFO] [stdout] d4e2141dc0a605c6eaf2daa01eeef106266e347c57f01e02a33a5cb39579f707