[INFO] cloning repository https://github.com/audiodog301/learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/audiodog301/learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudiodog301%2Flearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudiodog301%2Flearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e8613f7118f23291f14690f1d7843e5ce2a6d4e
[INFO] checking audiodog301/learning against try#506dff8de9f54f528028a7e4497ea925a4f3e19e for pr-94295
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudiodog301%2Flearning" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/audiodog301/learning on toolchain 506dff8de9f54f528028a7e4497ea925a4f3e19e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+506dff8de9f54f528028a7e4497ea925a4f3e19e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/audiodog301/learning
[INFO] finished tweaking git repo https://github.com/audiodog301/learning
[INFO] tweaked toml for git repo https://github.com/audiodog301/learning written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate git repo https://github.com/audiodog301/learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+506dff8de9f54f528028a7e4497ea925a4f3e19e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iced_winit v0.2.0
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[INFO] [stderr]   Downloaded rust-argon2 v0.8.3
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[INFO] [stderr]   Downloaded glam v0.10.2
[INFO] [stderr]   Downloaded iced_graphics v0.1.0
[INFO] [stderr]   Downloaded futures-executor v0.3.8
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[INFO] [stderr]   Downloaded clipboard_macos v0.1.0
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[INFO] [stderr]   Downloaded cc v1.0.65
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[INFO] [stderr]   Downloaded wayland-commons v0.28.2
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[INFO] [stderr]   Downloaded webpki-roots v0.18.0
[INFO] [stderr]   Downloaded ureq v0.11.4
[INFO] [stderr]   Downloaded fetch_unroll v0.2.1
[INFO] [stderr]   Downloaded dodrio v0.2.0
[INFO] [stderr]   Downloaded tinyvec v1.1.0
[INFO] [stderr]   Downloaded guillotiere v0.6.0
[INFO] [stderr]   Downloaded glyph_brush_draw_cache v0.1.3
[INFO] [stderr]   Downloaded glyph_brush v0.7.0
[INFO] [stderr]   Downloaded owned_ttf_parser v0.8.0
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.6.13
[INFO] [stderr]   Downloaded gfx-backend-empty v0.6.0
[INFO] [stderr]   Downloaded range-alloc v0.1.1
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.6.5
[INFO] [stderr]   Downloaded pin-project-lite v0.2.0
[INFO] [stderr]   Downloaded gfx-hal v0.6.0
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[INFO] [stderr]   Downloaded wgpu-core v0.6.5
[INFO] [stderr]   Downloaded wgpu-types v0.6.1
[INFO] [stderr]   Downloaded wgpu v0.6.2
[INFO] [stderr]   Downloaded zerocopy v0.3.0
[INFO] [stderr]   Downloaded wgpu_glyph v0.10.0
[INFO] [stderr]   Downloaded iced_wgpu v0.3.0
[INFO] [stderr]   Downloaded xcb v0.9.0
[INFO] [stderr]   Downloaded typed-arena v2.0.1
[INFO] [stderr]   Downloaded pin-project v1.0.2
[INFO] [stderr]   Downloaded iced_core v0.3.0
[INFO] [stderr]   Downloaded iced_futures v0.2.0
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[INFO] [stderr]   Downloaded clipboard_wayland v0.1.2
[INFO] [stderr]   Downloaded core-graphics v0.22.1
[INFO] [stderr]   Downloaded nom v6.0.1
[INFO] [stderr]   Downloaded winit v0.23.0
[INFO] [stderr]   Downloaded wayland-client v0.28.2
[INFO] [stderr]   Downloaded thiserror v1.0.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+506dff8de9f54f528028a7e4497ea925a4f3e19e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc4713a744114a1aa33a37c4916a0f628b1488acddf07e47fc0215cd669e8afe
[INFO] running `Command { std: "docker" "start" "-a" "fc4713a744114a1aa33a37c4916a0f628b1488acddf07e47fc0215cd669e8afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc4713a744114a1aa33a37c4916a0f628b1488acddf07e47fc0215cd669e8afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4713a744114a1aa33a37c4916a0f628b1488acddf07e47fc0215cd669e8afe", kill_on_drop: false }`
[INFO] [stdout] fc4713a744114a1aa33a37c4916a0f628b1488acddf07e47fc0215cd669e8afe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+506dff8de9f54f528028a7e4497ea925a4f3e19e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08540a4dda34ddd91bf209cd6379c5e2dbf3fa99b44b690013dfcd29891eec4d
[INFO] running `Command { std: "docker" "start" "-a" "08540a4dda34ddd91bf209cd6379c5e2dbf3fa99b44b690013dfcd29891eec4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ttf-parser v0.8.3
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking iced_core v0.3.0
[INFO] [stderr]     Checking inplace_it v0.3.2
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling winit v0.23.0
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking svg_fmt v0.4.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling wayland-sys v0.28.2
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling glam v0.10.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]     Checking wgpu-types v0.6.1
[INFO] [stderr]     Checking libloading v0.6.5
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.36
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.18.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=6ef796b9e62610fb -C extra-filename=-6ef796b9e62610fb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-c30f35abb0b74f97.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-d7aa02586377abc4.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-1b58492c5daf18bd.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "08540a4dda34ddd91bf209cd6379c5e2dbf3fa99b44b690013dfcd29891eec4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08540a4dda34ddd91bf209cd6379c5e2dbf3fa99b44b690013dfcd29891eec4d", kill_on_drop: false }`
[INFO] [stdout] 08540a4dda34ddd91bf209cd6379c5e2dbf3fa99b44b690013dfcd29891eec4d