[INFO] cloning repository https://github.com/makanai5610/LanguageImplementationPatterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/makanai5610/LanguageImplementationPatterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2FLanguageImplementationPatterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2FLanguageImplementationPatterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1984705de2aa0f778843876e77f943f4b4e55c4
[INFO] checking makanai5610/LanguageImplementationPatterns against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2FLanguageImplementationPatterns" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/makanai5610/LanguageImplementationPatterns 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/makanai5610/LanguageImplementationPatterns
[INFO] finished tweaking git repo https://github.com/makanai5610/LanguageImplementationPatterns
[INFO] tweaked toml for git repo https://github.com/makanai5610/LanguageImplementationPatterns written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/makanai5610/LanguageImplementationPatterns 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6154dcb22abfc21598515f7d2e208bb4e023dc0e7828b6570cee494273cc5d43
[INFO] running `Command { std: "docker" "start" "-a" "6154dcb22abfc21598515f7d2e208bb4e023dc0e7828b6570cee494273cc5d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6154dcb22abfc21598515f7d2e208bb4e023dc0e7828b6570cee494273cc5d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6154dcb22abfc21598515f7d2e208bb4e023dc0e7828b6570cee494273cc5d43", kill_on_drop: false }`
[INFO] [stdout] 6154dcb22abfc21598515f7d2e208bb4e023dc0e7828b6570cee494273cc5d43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 38c566235576ed76c34ca2f4c566294966b3395d04ffe3d6fac70ff9bd5bf7db
[INFO] running `Command { std: "docker" "start" "-a" "38c566235576ed76c34ca2f4c566294966b3395d04ffe3d6fac70ff9bd5bf7db", kill_on_drop: false }`
[INFO] [stderr]     Checking ll1_recursive_descent_lexer v0.1.0 (/opt/rustwide/workdir/LL1RecursiveDescentLexer)
[INFO] [stderr]     Checking ll1_recursive_descent_parser v0.1.0 (/opt/rustwide/workdir/LL1RecursiveDescentParser)
[INFO] [stderr]     Checking language_implementation_patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ll1_recursive_descent_lexer` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ll1_recursive_descent_lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_lexer` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ll1_recursive_descent_parser` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ll1_recursive_descent_parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_parser` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ll1_recursive_descent_lexer` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ll1_recursive_descent_lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_lexer` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ll1_recursive_descent_parser` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ll1_recursive_descent_parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_parser` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "38c566235576ed76c34ca2f4c566294966b3395d04ffe3d6fac70ff9bd5bf7db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c566235576ed76c34ca2f4c566294966b3395d04ffe3d6fac70ff9bd5bf7db", kill_on_drop: false }`
[INFO] [stdout] 38c566235576ed76c34ca2f4c566294966b3395d04ffe3d6fac70ff9bd5bf7db
[INFO] checking makanai5610/LanguageImplementationPatterns against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2FLanguageImplementationPatterns" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/makanai5610/LanguageImplementationPatterns on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/makanai5610/LanguageImplementationPatterns
[INFO] finished tweaking git repo https://github.com/makanai5610/LanguageImplementationPatterns
[INFO] tweaked toml for git repo https://github.com/makanai5610/LanguageImplementationPatterns written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/makanai5610/LanguageImplementationPatterns 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5381ee9838cbf556319b865b6b3ac92c3eacbf456703632c025933c5557951dd
[INFO] running `Command { std: "docker" "start" "-a" "5381ee9838cbf556319b865b6b3ac92c3eacbf456703632c025933c5557951dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5381ee9838cbf556319b865b6b3ac92c3eacbf456703632c025933c5557951dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5381ee9838cbf556319b865b6b3ac92c3eacbf456703632c025933c5557951dd", kill_on_drop: false }`
[INFO] [stdout] 5381ee9838cbf556319b865b6b3ac92c3eacbf456703632c025933c5557951dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f11f5262cbc32975f29aea7f1b3d33b5fbcc2308e9a18d70ce4e302bb9d61823
[INFO] running `Command { std: "docker" "start" "-a" "f11f5262cbc32975f29aea7f1b3d33b5fbcc2308e9a18d70ce4e302bb9d61823", kill_on_drop: false }`
[INFO] [stderr]     Checking ll1_recursive_descent_lexer v0.1.0 (/opt/rustwide/workdir/LL1RecursiveDescentLexer)
[INFO] [stderr]     Checking ll1_recursive_descent_parser v0.1.0 (/opt/rustwide/workdir/LL1RecursiveDescentParser)
[INFO] [stderr]     Checking language_implementation_patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ll1_recursive_descent_lexer` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ll1_recursive_descent_lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_lexer` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ll1_recursive_descent_parser` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ll1_recursive_descent_parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_parser` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ll1_recursive_descent_lexer` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ll1_recursive_descent_lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_lexer` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ll1_recursive_descent_parser` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ll1_recursive_descent_parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the item `ll1_recursive_descent_parser` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "f11f5262cbc32975f29aea7f1b3d33b5fbcc2308e9a18d70ce4e302bb9d61823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f11f5262cbc32975f29aea7f1b3d33b5fbcc2308e9a18d70ce4e302bb9d61823", kill_on_drop: false }`
[INFO] [stdout] f11f5262cbc32975f29aea7f1b3d33b5fbcc2308e9a18d70ce4e302bb9d61823