[INFO] cloning repository https://github.com/mosmeh/mahjongg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mosmeh/mahjongg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosmeh%2Fmahjongg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosmeh%2Fmahjongg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 684e489b98a8c0267aadc7fe64ad661297548129
[INFO] checking mosmeh/mahjongg against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosmeh%2Fmahjongg" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mosmeh/mahjongg
[INFO] finished tweaking git repo https://github.com/mosmeh/mahjongg
[INFO] tweaked toml for git repo https://github.com/mosmeh/mahjongg written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mosmeh/mahjongg on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mosmeh/mahjongg 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6324e4cb8579c6950c4926c649a181b65d1f01d91c3fe91ee211ee8abbf0d4b8
[INFO] running `Command { std: "docker" "start" "-a" "6324e4cb8579c6950c4926c649a181b65d1f01d91c3fe91ee211ee8abbf0d4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6324e4cb8579c6950c4926c649a181b65d1f01d91c3fe91ee211ee8abbf0d4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6324e4cb8579c6950c4926c649a181b65d1f01d91c3fe91ee211ee8abbf0d4b8", kill_on_drop: false }`
[INFO] [stdout] 6324e4cb8579c6950c4926c649a181b65d1f01d91c3fe91ee211ee8abbf0d4b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ab0614f07d9d190406d301fdac030065d35282701baae851adec8743a6f25ee
[INFO] running `Command { std: "docker" "start" "-a" "2ab0614f07d9d190406d301fdac030065d35282701baae851adec8743a6f25ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling nom v7.0.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]     Checking nix v0.20.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking minimal-lexical v0.1.3
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.6
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.4
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking png v0.16.6
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking shader_version v0.7.0
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking deflate v0.9.1
[INFO] [stderr]     Checking unicode-ccc v0.1.2
[INFO] [stderr]     Checking spin_sleep v1.0.0
[INFO] [stderr]     Checking unicode-script v0.5.2
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking siphasher v0.3.7
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking rustybuzz v0.4.0
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]     Checking svgtypes v0.8.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking png v0.17.1
[INFO] [stderr]     Checking piston2d-graphics v0.40.0
[INFO] [stderr]     Checking fontdb v0.6.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking kurbo v0.8.0
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking dlv-list v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking pico-args v0.4.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking rgb v0.8.18
[INFO] [stderr]     Checking rctree v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking svgfilters v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking tiny-skia v0.6.1
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.73.0
[INFO] [stderr]     Checking ordered-multimap v0.3.1
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking usvg v0.18.0
[INFO] [stderr]     Checking dialoguer v0.8.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking rust-ini v0.17.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking resvg v0.18.0
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking serde-xml-rs v0.5.0
[INFO] [stderr]     Checking pistoncore-window v0.47.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.53.0
[INFO] [stderr]     Checking piston v0.53.0
[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 pistoncore-glutin_window v0.69.0
[INFO] [stderr]     Checking piston_window v0.120.0
[INFO] [stderr]     Checking mahjongg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     /// Theme file (GNOME Mahjongg format)
[INFO] [stdout] 29 | |     #[structopt(
[INFO] [stdout] 30 | |         short,
[INFO] [stdout] 31 | |         long,
[INFO] [stdout] 32 | |         default_value = "/usr/share/gnome-mahjongg/themes/postmodern.svg"
[INFO] [stdout] 33 | |     )]
[INFO] [stdout] 34 | |     theme: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Map files or directories containing map files (GNOME Mahjongg or KMahjongg format)
[INFO] [stdout] 37 | |     #[structopt(short, long, default_value = "/usr/share/gnome-mahjongg/maps/")]
[INFO] [stdout] 38 | |     map: Vec<PathBuf>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Background color
[INFO] [stdout] 41 | |     #[structopt(short, long, default_value = "#34385b")]
[INFO] [stdout] 42 | |     background: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mahjongg` (bin "mahjongg" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     /// Theme file (GNOME Mahjongg format)
[INFO] [stdout] 29 | |     #[structopt(
[INFO] [stdout] 30 | |         short,
[INFO] [stdout] 31 | |         long,
[INFO] [stdout] 32 | |         default_value = "/usr/share/gnome-mahjongg/themes/postmodern.svg"
[INFO] [stdout] 33 | |     )]
[INFO] [stdout] 34 | |     theme: PathBuf,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Map files or directories containing map files (GNOME Mahjongg or KMahjongg format)
[INFO] [stdout] 37 | |     #[structopt(short, long, default_value = "/usr/share/gnome-mahjongg/maps/")]
[INFO] [stdout] 38 | |     map: Vec<PathBuf>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Background color
[INFO] [stdout] 41 | |     #[structopt(short, long, default_value = "#34385b")]
[INFO] [stdout] 42 | |     background: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mahjongg` (bin "mahjongg") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "2ab0614f07d9d190406d301fdac030065d35282701baae851adec8743a6f25ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab0614f07d9d190406d301fdac030065d35282701baae851adec8743a6f25ee", kill_on_drop: false }`
[INFO] [stdout] 2ab0614f07d9d190406d301fdac030065d35282701baae851adec8743a6f25ee
