[INFO] fetching crate valence_lang 0.2.0-alpha.1+mc.1.20.1...
[INFO] checking valence_lang-0.2.0-alpha.1+mc.1.20.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate valence_lang 0.2.0-alpha.1+mc.1.20.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate valence_lang 0.2.0-alpha.1+mc.1.20.1 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 valence_lang 0.2.0-alpha.1+mc.1.20.1
[INFO] finished tweaking crates.io crate valence_lang 0.2.0-alpha.1+mc.1.20.1
[INFO] tweaked toml for crates.io crate valence_lang 0.2.0-alpha.1+mc.1.20.1 written to /workspace/builds/worker-6-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 packages
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded valence_build_utils v0.2.0-alpha.1+mc.1.20.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9a8b6b16a87f246f7cf21bd1e1e6b880e802b83cee776bee8bb5bdc93a22794b
[INFO] running `Command { std: "docker" "start" "-a" "9a8b6b16a87f246f7cf21bd1e1e6b880e802b83cee776bee8bb5bdc93a22794b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a8b6b16a87f246f7cf21bd1e1e6b880e802b83cee776bee8bb5bdc93a22794b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a8b6b16a87f246f7cf21bd1e1e6b880e802b83cee776bee8bb5bdc93a22794b", kill_on_drop: false }`
[INFO] [stdout] 9a8b6b16a87f246f7cf21bd1e1e6b880e802b83cee776bee8bb5bdc93a22794b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 85c32d2d8c632078727c6bde0c5c9fcd7fa7f7a62296160f1d1ac05048a8ec97
[INFO] running `Command { std: "docker" "start" "-a" "85c32d2d8c632078727c6bde0c5c9fcd7fa7f7a62296160f1d1ac05048a8ec97", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling valence_build_utils v0.2.0-alpha.1+mc.1.20.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling valence_lang v0.2.0-alpha.1+mc.1.20.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.53s
[INFO] running `Command { std: "docker" "inspect" "85c32d2d8c632078727c6bde0c5c9fcd7fa7f7a62296160f1d1ac05048a8ec97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c32d2d8c632078727c6bde0c5c9fcd7fa7f7a62296160f1d1ac05048a8ec97", kill_on_drop: false }`
[INFO] [stdout] 85c32d2d8c632078727c6bde0c5c9fcd7fa7f7a62296160f1d1ac05048a8ec97