[INFO] cloning repository https://github.com/romerorocha/dungeon-crawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/romerorocha/dungeon-crawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromerorocha%2Fdungeon-crawler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromerorocha%2Fdungeon-crawler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95164262deee570b5d617e376b4d5dd264f90ba0
[INFO] checking romerorocha/dungeon-crawler against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromerorocha%2Fdungeon-crawler" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/romerorocha/dungeon-crawler 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 git repo https://github.com/romerorocha/dungeon-crawler
[INFO] finished tweaking git repo https://github.com/romerorocha/dungeon-crawler
[INFO] tweaked toml for git repo https://github.com/romerorocha/dungeon-crawler written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/romerorocha/dungeon-crawler 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] 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] bb8e1b44ed6687ae0cbe429f27669408796819167bccb6c7561b4a59ee00c06b
[INFO] running `Command { std: "docker" "start" "-a" "bb8e1b44ed6687ae0cbe429f27669408796819167bccb6c7561b4a59ee00c06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb8e1b44ed6687ae0cbe429f27669408796819167bccb6c7561b4a59ee00c06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb8e1b44ed6687ae0cbe429f27669408796819167bccb6c7561b4a59ee00c06b", kill_on_drop: false }`
[INFO] [stdout] bb8e1b44ed6687ae0cbe429f27669408796819167bccb6c7561b4a59ee00c06b
[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] 5d90387b858c85fc1ca358dff91a2ca21b3f871695ffc0a602b7d24d465d10fc
[INFO] running `Command { std: "docker" "start" "-a" "5d90387b858c85fc1ca358dff91a2ca21b3f871695ffc0a602b7d24d465d10fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.5
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking raw-window-handle v0.4.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]     Checking wide v0.6.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking glow v0.10.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking raw-window-handle v0.3.4
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking xdg v2.4.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking ultraviolet v0.8.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking object-pool v0.5.4
[INFO] [stderr]     Checking bracket-color v0.8.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking bracket-geometry v0.8.3
[INFO] [stderr]     Checking bracket-random v0.8.2
[INFO] [stderr]     Checking bracket-noise v0.8.2
[INFO] [stderr]     Checking bracket-algorithm-traits v0.8.2
[INFO] [stderr]     Checking bracket-pathfinding v0.8.4
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking glutin v0.26.0
[INFO] [stderr]     Checking bracket-terminal v0.8.5
[INFO] [stderr]     Checking bracket-lib v0.8.1
[INFO] [stderr]     Checking dungeoncrawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.24s
[INFO] running `Command { std: "docker" "inspect" "5d90387b858c85fc1ca358dff91a2ca21b3f871695ffc0a602b7d24d465d10fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d90387b858c85fc1ca358dff91a2ca21b3f871695ffc0a602b7d24d465d10fc", kill_on_drop: false }`
[INFO] [stdout] 5d90387b858c85fc1ca358dff91a2ca21b3f871695ffc0a602b7d24d465d10fc
[INFO] checking romerorocha/dungeon-crawler against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromerorocha%2Fdungeon-crawler" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/romerorocha/dungeon-crawler 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 git repo https://github.com/romerorocha/dungeon-crawler
[INFO] finished tweaking git repo https://github.com/romerorocha/dungeon-crawler
[INFO] tweaked toml for git repo https://github.com/romerorocha/dungeon-crawler written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/romerorocha/dungeon-crawler 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] 771fd6fcc947210b003074082bdf6eb3e3990dec3c00a8359fa57a740c7182a3
[INFO] running `Command { std: "docker" "start" "-a" "771fd6fcc947210b003074082bdf6eb3e3990dec3c00a8359fa57a740c7182a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "771fd6fcc947210b003074082bdf6eb3e3990dec3c00a8359fa57a740c7182a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "771fd6fcc947210b003074082bdf6eb3e3990dec3c00a8359fa57a740c7182a3", kill_on_drop: false }`
[INFO] [stdout] 771fd6fcc947210b003074082bdf6eb3e3990dec3c00a8359fa57a740c7182a3
[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] ccdf2eb488a09925e8a85545e16b3719cb095df38d06c22a459956e8b3ef161e
[INFO] running `Command { std: "docker" "start" "-a" "ccdf2eb488a09925e8a85545e16b3719cb095df38d06c22a459956e8b3ef161e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.5
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking raw-window-handle v0.4.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking glow v0.10.0
[INFO] [stderr]     Checking wide v0.6.5
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking ultraviolet v0.8.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking xdg v2.4.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking raw-window-handle v0.3.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking bracket-color v0.8.2
[INFO] [stderr]     Checking object-pool v0.5.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking bracket-geometry v0.8.3
[INFO] [stderr]     Checking bracket-random v0.8.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking bracket-algorithm-traits v0.8.2
[INFO] [stderr]     Checking bracket-noise v0.8.2
[INFO] [stderr]     Checking bracket-pathfinding v0.8.4
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking glutin v0.26.0
[INFO] [stderr]     Checking bracket-terminal v0.8.5
[INFO] [stderr]     Checking bracket-lib v0.8.1
[INFO] [stderr]     Checking dungeoncrawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.94s
[INFO] running `Command { std: "docker" "inspect" "ccdf2eb488a09925e8a85545e16b3719cb095df38d06c22a459956e8b3ef161e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccdf2eb488a09925e8a85545e16b3719cb095df38d06c22a459956e8b3ef161e", kill_on_drop: false }`
[INFO] [stdout] ccdf2eb488a09925e8a85545e16b3719cb095df38d06c22a459956e8b3ef161e