[INFO] cloning repository https://github.com/LioQing/ya_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LioQing/ya_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioQing%2Fya_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioQing%2Fya_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc490cf23eb655e6fead079d5575e48e280b1163
[INFO] checking LioQing/ya_lang against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioQing%2Fya_lang" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LioQing/ya_lang 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/LioQing/ya_lang
[INFO] finished tweaking git repo https://github.com/LioQing/ya_lang
[INFO] tweaked toml for git repo https://github.com/LioQing/ya_lang written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LioQing/ya_lang 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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6708a91decf6ce32b5a101b4ceeb6ff6beb408c1f12b619de7880ff051c0894a
[INFO] running `Command { std: "docker" "start" "-a" "6708a91decf6ce32b5a101b4ceeb6ff6beb408c1f12b619de7880ff051c0894a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6708a91decf6ce32b5a101b4ceeb6ff6beb408c1f12b619de7880ff051c0894a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6708a91decf6ce32b5a101b4ceeb6ff6beb408c1f12b619de7880ff051c0894a", kill_on_drop: false }`
[INFO] [stdout] 6708a91decf6ce32b5a101b4ceeb6ff6beb408c1f12b619de7880ff051c0894a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] efc0822a64fce2a07d1fd6aebdb9df7daa381f69caa64ed0a3370a3f6afda216
[INFO] running `Command { std: "docker" "start" "-a" "efc0822a64fce2a07d1fd6aebdb9df7daa381f69caa64ed0a3370a3f6afda216", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking token v0.1.0 (/opt/rustwide/workdir/core/token)
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking ya-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir/core/lexer)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> core/lexer/src/lib.rs:131:27
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 prefix = p.clone().to_owned();
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> core/lexer/src/lib.rs:131:27
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 prefix = p.clone().to_owned();
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking syn-parser v0.1.0 (/opt/rustwide/workdir/core/syn-parser)
[INFO] [stderr]     Checking sem-parser v0.1.0 (/opt/rustwide/workdir/core/sem-parser)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `Command { std: "docker" "inspect" "efc0822a64fce2a07d1fd6aebdb9df7daa381f69caa64ed0a3370a3f6afda216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc0822a64fce2a07d1fd6aebdb9df7daa381f69caa64ed0a3370a3f6afda216", kill_on_drop: false }`
[INFO] [stdout] efc0822a64fce2a07d1fd6aebdb9df7daa381f69caa64ed0a3370a3f6afda216
[INFO] checking LioQing/ya_lang against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioQing%2Fya_lang" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LioQing/ya_lang 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/LioQing/ya_lang
[INFO] finished tweaking git repo https://github.com/LioQing/ya_lang
[INFO] tweaked toml for git repo https://github.com/LioQing/ya_lang written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LioQing/ya_lang 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 26c897d638c3a949a4a2b380496ae213f1ecd96151d024bd34eaa5ca07b335f5
[INFO] running `Command { std: "docker" "start" "-a" "26c897d638c3a949a4a2b380496ae213f1ecd96151d024bd34eaa5ca07b335f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26c897d638c3a949a4a2b380496ae213f1ecd96151d024bd34eaa5ca07b335f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c897d638c3a949a4a2b380496ae213f1ecd96151d024bd34eaa5ca07b335f5", kill_on_drop: false }`
[INFO] [stdout] 26c897d638c3a949a4a2b380496ae213f1ecd96151d024bd34eaa5ca07b335f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 231f647ab4cda489ec271bafcdf85398dbd1911a5fa4e27a1fa80ad585bda236
[INFO] running `Command { std: "docker" "start" "-a" "231f647ab4cda489ec271bafcdf85398dbd1911a5fa4e27a1fa80ad585bda236", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking token v0.1.0 (/opt/rustwide/workdir/core/token)
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking ya-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir/core/lexer)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> core/lexer/src/lib.rs:131:27
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 prefix = p.clone().to_owned();
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> core/lexer/src/lib.rs:131:27
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 prefix = p.clone().to_owned();
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking syn-parser v0.1.0 (/opt/rustwide/workdir/core/syn-parser)
[INFO] [stderr]     Checking sem-parser v0.1.0 (/opt/rustwide/workdir/core/sem-parser)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "231f647ab4cda489ec271bafcdf85398dbd1911a5fa4e27a1fa80ad585bda236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "231f647ab4cda489ec271bafcdf85398dbd1911a5fa4e27a1fa80ad585bda236", kill_on_drop: false }`
[INFO] [stdout] 231f647ab4cda489ec271bafcdf85398dbd1911a5fa4e27a1fa80ad585bda236