[INFO] fetching crate tectonic_engine_xdvipdfmx 0.4.1...
[INFO] checking tectonic_engine_xdvipdfmx-0.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tectonic_engine_xdvipdfmx 0.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate tectonic_engine_xdvipdfmx 0.4.1 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 tectonic_engine_xdvipdfmx 0.4.1
[INFO] finished tweaking crates.io crate tectonic_engine_xdvipdfmx 0.4.1
[INFO] tweaked toml for crates.io crate tectonic_engine_xdvipdfmx 0.4.1 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]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding jni-sys v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding windows-sys v0.45.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.42.2 (latest: v0.52.4)
[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 tectonic_errors v0.2.1
[INFO] [stderr]   Downloaded tectonic_status_base v0.2.1
[INFO] [stderr]   Downloaded app_dirs2 v2.5.5
[INFO] [stderr]   Downloaded tectonic_io_base v0.4.3
[INFO] [stderr]   Downloaded tectonic_bridge_flate v0.1.7
[INFO] [stderr]   Downloaded tectonic_bridge_core v0.4.1
[INFO] [stderr]   Downloaded tectonic_cfg_support v0.1.4
[INFO] [stderr]   Downloaded tectonic_pdf_io v0.4.1
[INFO] [stderr]   Downloaded tectonic_dep_support v0.1.1
[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] d8393b0aca4196805e1e8ca90d9ea9b460cbb2507e9bafb686b8123eb4ea734b
[INFO] running `Command { std: "docker" "start" "-a" "d8393b0aca4196805e1e8ca90d9ea9b460cbb2507e9bafb686b8123eb4ea734b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8393b0aca4196805e1e8ca90d9ea9b460cbb2507e9bafb686b8123eb4ea734b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8393b0aca4196805e1e8ca90d9ea9b460cbb2507e9bafb686b8123eb4ea734b", kill_on_drop: false }`
[INFO] [stdout] d8393b0aca4196805e1e8ca90d9ea9b460cbb2507e9bafb686b8123eb4ea734b
[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] 0e5899fdc52ccaefc84f2cb3e7fbdc40aa35930764188ec2879ef5bff9cf7e6c
[INFO] running `Command { std: "docker" "start" "-a" "0e5899fdc52ccaefc84f2cb3e7fbdc40aa35930764188ec2879ef5bff9cf7e6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling tectonic_bridge_core v0.4.1
[INFO] [stderr]    Compiling tectonic_bridge_flate v0.1.7
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]    Compiling tectonic_dep_support v0.1.1
[INFO] [stderr]    Compiling tectonic_cfg_support v0.1.4
[INFO] [stderr]    Compiling tectonic_engine_xdvipdfmx v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tectonic_errors v0.2.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tectonic_status_base v0.2.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking app_dirs2 v2.5.5
[INFO] [stderr]    Compiling tectonic_pdf_io v0.4.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking tectonic_io_base v0.4.3
[INFO] [stderr] warning: tectonic_engine_xdvipdfmx@0.4.1: Compiler version doesn't include clang or GCC: "cc" "--version"
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.76s
[INFO] running `Command { std: "docker" "inspect" "0e5899fdc52ccaefc84f2cb3e7fbdc40aa35930764188ec2879ef5bff9cf7e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e5899fdc52ccaefc84f2cb3e7fbdc40aa35930764188ec2879ef5bff9cf7e6c", kill_on_drop: false }`
[INFO] [stdout] 0e5899fdc52ccaefc84f2cb3e7fbdc40aa35930764188ec2879ef5bff9cf7e6c
[INFO] checking tectonic_engine_xdvipdfmx-0.4.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tectonic_engine_xdvipdfmx 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate tectonic_engine_xdvipdfmx 0.4.1 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 tectonic_engine_xdvipdfmx 0.4.1
[INFO] finished tweaking crates.io crate tectonic_engine_xdvipdfmx 0.4.1
[INFO] tweaked toml for crates.io crate tectonic_engine_xdvipdfmx 0.4.1 written to /workspace/builds/worker-6-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]     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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 81fdf481f86e1d74e2565a2504cb55dd5eaf1bc367bd270aa887cb70c2ad971c
[INFO] running `Command { std: "docker" "start" "-a" "81fdf481f86e1d74e2565a2504cb55dd5eaf1bc367bd270aa887cb70c2ad971c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81fdf481f86e1d74e2565a2504cb55dd5eaf1bc367bd270aa887cb70c2ad971c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fdf481f86e1d74e2565a2504cb55dd5eaf1bc367bd270aa887cb70c2ad971c", kill_on_drop: false }`
[INFO] [stdout] 81fdf481f86e1d74e2565a2504cb55dd5eaf1bc367bd270aa887cb70c2ad971c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d9eac3665701f013de9028fbf7cd79d6c950d4cc2c0edd9e11d3e591909ccc8e
[INFO] running `Command { std: "docker" "start" "-a" "d9eac3665701f013de9028fbf7cd79d6c950d4cc2c0edd9e11d3e591909ccc8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tectonic_bridge_core v0.4.1
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]    Compiling tectonic_bridge_flate v0.1.7
[INFO] [stderr]    Compiling tectonic_dep_support v0.1.1
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]    Compiling tectonic_engine_xdvipdfmx v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tectonic_cfg_support v0.1.4
[INFO] [stderr]     Checking tectonic_errors v0.2.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tectonic_status_base v0.2.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling tectonic_pdf_io v0.4.1
[INFO] [stderr]     Checking app_dirs2 v2.5.5
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking tectonic_io_base v0.4.3
[INFO] [stderr] warning: tectonic_engine_xdvipdfmx@0.4.1: Compiler version doesn't include clang or GCC: "cc" "--version"
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.70s
[INFO] running `Command { std: "docker" "inspect" "d9eac3665701f013de9028fbf7cd79d6c950d4cc2c0edd9e11d3e591909ccc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9eac3665701f013de9028fbf7cd79d6c950d4cc2c0edd9e11d3e591909ccc8e", kill_on_drop: false }`
[INFO] [stdout] d9eac3665701f013de9028fbf7cd79d6c950d4cc2c0edd9e11d3e591909ccc8e