[INFO] fetching crate matrix-protos-rust 0.1.0...
[INFO] checking matrix-protos-rust-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate matrix-protos-rust 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate matrix-protos-rust 0.1.0 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 matrix-protos-rust 0.1.0
[INFO] finished tweaking crates.io crate matrix-protos-rust 0.1.0
[INFO] tweaked toml for crates.io crate matrix-protos-rust 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate matrix-protos-rust 0.1.0 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] [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]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.77
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.77
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.27
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.77
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.77
[INFO] [stderr]   Downloaded protobuf-codegen v2.25.1
[INFO] [stderr]   Downloaded protobuf v2.25.1
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.77
[INFO] [stderr]   Downloaded web-sys v0.3.54
[INFO] [stderr]   Downloaded tinyvec v1.4.0
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.25.1
[INFO] [stderr]   Downloaded js-sys v0.3.54
[INFO] [stderr]   Downloaded flate2 v1.0.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 51dd879964773efef8ba780564233ab2b7db65ed5096258c259ac5c648c03e39
[INFO] running `Command { std: "docker" "start" "-a" "51dd879964773efef8ba780564233ab2b7db65ed5096258c259ac5c648c03e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51dd879964773efef8ba780564233ab2b7db65ed5096258c259ac5c648c03e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51dd879964773efef8ba780564233ab2b7db65ed5096258c259ac5c648c03e39", kill_on_drop: false }`
[INFO] [stdout] 51dd879964773efef8ba780564233ab2b7db65ed5096258c259ac5c648c03e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0b66a81e8f760281914abfe38efa473877d1473903976e9a1c113689128f40cb
[INFO] running `Command { std: "docker" "start" "-a" "0b66a81e8f760281914abfe38efa473877d1473903976e9a1c113689128f40cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]     Checking matrix-protos-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "0b66a81e8f760281914abfe38efa473877d1473903976e9a1c113689128f40cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b66a81e8f760281914abfe38efa473877d1473903976e9a1c113689128f40cb", kill_on_drop: false }`
[INFO] [stdout] 0b66a81e8f760281914abfe38efa473877d1473903976e9a1c113689128f40cb
[INFO] checking matrix-protos-rust-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate matrix-protos-rust 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate matrix-protos-rust 0.1.0 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 matrix-protos-rust 0.1.0
[INFO] finished tweaking crates.io crate matrix-protos-rust 0.1.0
[INFO] tweaked toml for crates.io crate matrix-protos-rust 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate matrix-protos-rust 0.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] eb59174cc62c3f5870fe97cd1b86c9f184af814c7447a1def5b5e8c8826da1c4
[INFO] running `Command { std: "docker" "start" "-a" "eb59174cc62c3f5870fe97cd1b86c9f184af814c7447a1def5b5e8c8826da1c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb59174cc62c3f5870fe97cd1b86c9f184af814c7447a1def5b5e8c8826da1c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb59174cc62c3f5870fe97cd1b86c9f184af814c7447a1def5b5e8c8826da1c4", kill_on_drop: false }`
[INFO] [stdout] eb59174cc62c3f5870fe97cd1b86c9f184af814c7447a1def5b5e8c8826da1c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8fc98a0d87379267eaa86f217d4f2ec2c17715c407d7a7e22c43ea2dfc5707c3
[INFO] running `Command { std: "docker" "start" "-a" "8fc98a0d87379267eaa86f217d4f2ec2c17715c407d7a7e22c43ea2dfc5707c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]     Checking matrix-protos-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.42s
[INFO] running `Command { std: "docker" "inspect" "8fc98a0d87379267eaa86f217d4f2ec2c17715c407d7a7e22c43ea2dfc5707c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc98a0d87379267eaa86f217d4f2ec2c17715c407d7a7e22c43ea2dfc5707c3", kill_on_drop: false }`
[INFO] [stdout] 8fc98a0d87379267eaa86f217d4f2ec2c17715c407d7a7e22c43ea2dfc5707c3