[INFO] fetching crate lessanvil 1.0.2...
[INFO] checking lessanvil-1.0.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lessanvil 1.0.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate lessanvil 1.0.2 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 lessanvil 1.0.2
[INFO] finished tweaking crates.io crate lessanvil 1.0.2
[INFO] tweaked toml for crates.io crate lessanvil 1.0.2 written to /workspace/builds/worker-3-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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 39 packages
[INFO] [stderr]       Adding fastanvil v0.28.0 (latest: v0.31.0)
[INFO] [stderr]       Adding num_enum v0.5.11 (latest: v0.7.2)
[INFO] [stderr]       Adding num_enum_derive v0.5.11 (latest: v0.7.2)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fastanvil v0.28.0
[INFO] [stderr]   Downloaded fastnbt v2.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7f797b09ee2b003c55e42a4774117b78c1019f5cce1cc033e8ee2d000691e6de
[INFO] running `Command { std: "docker" "start" "-a" "7f797b09ee2b003c55e42a4774117b78c1019f5cce1cc033e8ee2d000691e6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f797b09ee2b003c55e42a4774117b78c1019f5cce1cc033e8ee2d000691e6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f797b09ee2b003c55e42a4774117b78c1019f5cce1cc033e8ee2d000691e6de", kill_on_drop: false }`
[INFO] [stdout] 7f797b09ee2b003c55e42a4774117b78c1019f5cce1cc033e8ee2d000691e6de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d2679fb13fea783f8fbcf44d9456ee36ed192f55f044d07489998aa32d10aa6f
[INFO] running `Command { std: "docker" "start" "-a" "d2679fb13fea783f8fbcf44d9456ee36ed192f55f044d07489998aa32d10aa6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking fastnbt v2.5.0
[INFO] [stderr]     Checking fastanvil v0.28.0
[INFO] [stderr]     Checking lessanvil v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.96s
[INFO] running `Command { std: "docker" "inspect" "d2679fb13fea783f8fbcf44d9456ee36ed192f55f044d07489998aa32d10aa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2679fb13fea783f8fbcf44d9456ee36ed192f55f044d07489998aa32d10aa6f", kill_on_drop: false }`
[INFO] [stdout] d2679fb13fea783f8fbcf44d9456ee36ed192f55f044d07489998aa32d10aa6f