[INFO] cloning repository https://github.com/jacksonhenry3/String_Simulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacksonhenry3/String_Simulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacksonhenry3%2FString_Simulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacksonhenry3%2FString_Simulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a680ea3bc7702a454a3d52aae6cb9ebb690857d5
[INFO] checking jacksonhenry3/String_Simulation against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacksonhenry3%2FString_Simulation" "/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/jacksonhenry3/String_Simulation on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jacksonhenry3/String_Simulation
[INFO] finished tweaking git repo https://github.com/jacksonhenry3/String_Simulation
[INFO] tweaked toml for git repo https://github.com/jacksonhenry3/String_Simulation written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jacksonhenry3/String_Simulation 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded renderdoc-sys v0.7.1
[INFO] [stderr]   Downloaded profiling v1.0.7
[INFO] [stderr]   Downloaded gpu-alloc-types v0.2.0
[INFO] [stderr]   Downloaded pennereq v0.3.1
[INFO] [stderr]   Downloaded bytemuck v1.12.2
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded gpu-descriptor v0.2.3
[INFO] [stderr]   Downloaded d3d12 v0.4.1
[INFO] [stderr]   Downloaded ab_glyph_rasterizer v0.1.7
[INFO] [stderr]   Downloaded range-alloc v0.1.2
[INFO] [stderr]   Downloaded wgpu-types v0.11.0
[INFO] [stderr]   Downloaded ode_solvers v0.3.7
[INFO] [stderr]   Downloaded lyon_geom v0.17.7
[INFO] [stderr]   Downloaded wgpu-hal v0.11.5
[INFO] [stderr]   Downloaded spirv v0.2.0+1.5.4
[INFO] [stderr]   Downloaded wgpu-core v0.11.3
[INFO] [stderr]   Downloaded naga v0.7.3
[INFO] [stderr]   Downloaded notosans v0.1.0
[INFO] [stderr]   Downloaded wgpu v0.11.1
[INFO] [stderr]   Downloaded metal v0.23.1
[INFO] [stderr]   Downloaded wide v0.7.5
[INFO] [stderr]   Downloaded lyon_tessellation v0.17.10
[INFO] [stderr]   Downloaded glam v0.17.3
[INFO] [stderr]   Downloaded nalgebra v0.31.3
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] [stderr]   Downloaded nannou v0.18.1
[INFO] [stderr]   Downloaded ash v0.33.3+1.2.191
[INFO] [stderr]   Downloaded x11-dl v2.20.0
[INFO] [stderr]   Downloaded khronos-egl v4.1.0
[INFO] [stderr]   Downloaded rusttype v0.8.3
[INFO] [stderr]   Downloaded nannou_mesh v0.18.0
[INFO] [stderr]   Downloaded matrixmultiply v0.3.2
[INFO] [stderr]   Downloaded simba v0.7.3
[INFO] [stderr]   Downloaded stb_truetype v0.3.1
[INFO] [stderr]   Downloaded nannou_wgpu v0.18.0
[INFO] [stderr]   Downloaded gpu-alloc v0.5.3
[INFO] [stderr]   Downloaded nannou_core v0.18.0
[INFO] [stderr]   Downloaded palette_derive v0.5.0
[INFO] [stderr]   Downloaded lyon v0.17.10
[INFO] [stderr]   Downloaded palette v0.5.0
[INFO] [stderr]   Downloaded find_folder v0.3.0
[INFO] [stderr]   Downloaded inplace_it v0.3.5
[INFO] [stderr]   Downloaded hexf-parse v0.2.1
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[INFO] [stderr]   Downloaded cfg_aliases v0.1.1
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[INFO] [stderr]   Downloaded gpu-descriptor-types v0.1.1
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d02c2ff9e1259b140b28d9400d57fef6658d1f6dfc4e89bf739fba4d9598268a
[INFO] running `Command { std: "docker" "start" "-a" "d02c2ff9e1259b140b28d9400d57fef6658d1f6dfc4e89bf739fba4d9598268a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d02c2ff9e1259b140b28d9400d57fef6658d1f6dfc4e89bf739fba4d9598268a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d02c2ff9e1259b140b28d9400d57fef6658d1f6dfc4e89bf739fba4d9598268a", kill_on_drop: false }`
[INFO] [stdout] d02c2ff9e1259b140b28d9400d57fef6658d1f6dfc4e89bf739fba4d9598268a
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc57a406f458fe8a0f99322bfefcc04177711eed1e95e5dc4081454ac91b2fda
[INFO] running `Command { std: "docker" "start" "-a" "fc57a406f458fe8a0f99322bfefcc04177711eed1e95e5dc4081454ac91b2fda", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking bytemuck v1.12.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fc57a406f458fe8a0f99322bfefcc04177711eed1e95e5dc4081454ac91b2fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc57a406f458fe8a0f99322bfefcc04177711eed1e95e5dc4081454ac91b2fda", kill_on_drop: false }`
[INFO] [stdout] fc57a406f458fe8a0f99322bfefcc04177711eed1e95e5dc4081454ac91b2fda