[INFO] fetching crate guarding_core 0.2.7...
[INFO] checking guarding_core-0.2.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate guarding_core 0.2.7 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate guarding_core 0.2.7 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 crates.io crate guarding_core 0.2.7
[INFO] finished tweaking crates.io crate guarding_core 0.2.7
[INFO] tweaked toml for crates.io crate guarding_core 0.2.7 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded guarding_parser v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 09352cd82269437c273be4d3d61b0b095f297f5b923d621445a06a8398f6951c
[INFO] running `Command { std: "docker" "start" "-a" "09352cd82269437c273be4d3d61b0b095f297f5b923d621445a06a8398f6951c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09352cd82269437c273be4d3d61b0b095f297f5b923d621445a06a8398f6951c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09352cd82269437c273be4d3d61b0b095f297f5b923d621445a06a8398f6951c", kill_on_drop: false }`
[INFO] [stdout] 09352cd82269437c273be4d3d61b0b095f297f5b923d621445a06a8398f6951c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2c6233378b96296c1f9b79e961331d54ce0c3e24c7322129aafabe5a739d9699
[INFO] running `Command { std: "docker" "start" "-a" "2c6233378b96296c1f9b79e961331d54ce0c3e24c7322129aafabe5a739d9699", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking pest v2.7.9
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking guarding_parser v0.2.6
[INFO] [stderr]     Checking guarding_core v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.27s
[INFO] running `Command { std: "docker" "inspect" "2c6233378b96296c1f9b79e961331d54ce0c3e24c7322129aafabe5a739d9699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6233378b96296c1f9b79e961331d54ce0c3e24c7322129aafabe5a739d9699", kill_on_drop: false }`
[INFO] [stdout] 2c6233378b96296c1f9b79e961331d54ce0c3e24c7322129aafabe5a739d9699
[INFO] checking guarding_core-0.2.7 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate guarding_core 0.2.7 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate guarding_core 0.2.7 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 crates.io crate guarding_core 0.2.7
[INFO] finished tweaking crates.io crate guarding_core 0.2.7
[INFO] tweaked toml for crates.io crate guarding_core 0.2.7 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6816eea377f6bd07c392b9a175baa64a3cd12afe91eeca98d586ac7e50384136
[INFO] running `Command { std: "docker" "start" "-a" "6816eea377f6bd07c392b9a175baa64a3cd12afe91eeca98d586ac7e50384136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6816eea377f6bd07c392b9a175baa64a3cd12afe91eeca98d586ac7e50384136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6816eea377f6bd07c392b9a175baa64a3cd12afe91eeca98d586ac7e50384136", kill_on_drop: false }`
[INFO] [stdout] 6816eea377f6bd07c392b9a175baa64a3cd12afe91eeca98d586ac7e50384136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9b29da1dc4eb1e2dcd3aa5ea1561c1f81115d7a22a14bd8f967542b71f1c4bb9
[INFO] running `Command { std: "docker" "start" "-a" "9b29da1dc4eb1e2dcd3aa5ea1561c1f81115d7a22a14bd8f967542b71f1c4bb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking pest v2.7.9
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking guarding_parser v0.2.6
[INFO] [stderr]     Checking guarding_core v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.51s
[INFO] running `Command { std: "docker" "inspect" "9b29da1dc4eb1e2dcd3aa5ea1561c1f81115d7a22a14bd8f967542b71f1c4bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b29da1dc4eb1e2dcd3aa5ea1561c1f81115d7a22a14bd8f967542b71f1c4bb9", kill_on_drop: false }`
[INFO] [stdout] 9b29da1dc4eb1e2dcd3aa5ea1561c1f81115d7a22a14bd8f967542b71f1c4bb9