[INFO] cloning repository https://github.com/gavinmorrow/lox-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gavinmorrow/lox-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavinmorrow%2Flox-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavinmorrow%2Flox-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9555d36d1c452f60614f4b9fb43718a1a8e9e2be
[INFO] checking gavinmorrow/lox-rs against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavinmorrow%2Flox-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gavinmorrow/lox-rs
[INFO] finished tweaking git repo https://github.com/gavinmorrow/lox-rs
[INFO] tweaked toml for git repo https://github.com/gavinmorrow/lox-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gavinmorrow/lox-rs on toolchain b6bca0d7327839b5e3f7a7779947cb9113d08917
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gavinmorrow/lox-rs 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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41b0d5e33522178eddb191c3187cda8102693d25258f7010b73a54c3bac2c470
[INFO] running `Command { std: "docker" "start" "-a" "41b0d5e33522178eddb191c3187cda8102693d25258f7010b73a54c3bac2c470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41b0d5e33522178eddb191c3187cda8102693d25258f7010b73a54c3bac2c470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b0d5e33522178eddb191c3187cda8102693d25258f7010b73a54c3bac2c470", kill_on_drop: false }`
[INFO] [stdout] 41b0d5e33522178eddb191c3187cda8102693d25258f7010b73a54c3bac2c470
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Zstrict-projection-item-bounds" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b8ce92fafd2fc508ac3be984f6a6865db688dfc2666821055fe66777aae57fb
[INFO] running `Command { std: "docker" "start" "-a" "3b8ce92fafd2fc508ac3be984f6a6865db688dfc2666821055fe66777aae57fb", kill_on_drop: false }`
[INFO] [stderr]     Checking lox-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/main.rs:256:22
[INFO] [stdout]     |
[INFO] [stdout] 256 |     impl<T: Iterator<Item = Token>> Parser<Peekable<T>> {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<T as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/main.rs:256:22
[INFO] [stdout]     |
[INFO] [stdout] 256 |     impl<T: Iterator<Item = Token>> Parser<Peekable<T>> {
[INFO] [stdout]     |                      ^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<T as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/main.rs:257:65
[INFO] [stdout]     |
[INFO] [stdout] 257 |         pub fn new<I: IntoIterator<IntoIter = T>>(tokens: I) -> Self {
[INFO] [stdout]     |                                                                 ^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<T as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/main.rs:257:65
[INFO] [stdout]     |
[INFO] [stdout] 257 |         pub fn new<I: IntoIterator<IntoIter = T>>(tokens: I) -> Self {
[INFO] [stdout]     |                                                                 ^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<T as Iterator>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox-rs` (bin "lox-rs" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lox-rs` (bin "lox-rs") due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b8ce92fafd2fc508ac3be984f6a6865db688dfc2666821055fe66777aae57fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b8ce92fafd2fc508ac3be984f6a6865db688dfc2666821055fe66777aae57fb", kill_on_drop: false }`
[INFO] [stdout] 3b8ce92fafd2fc508ac3be984f6a6865db688dfc2666821055fe66777aae57fb