[INFO] cloning repository https://github.com/seanvert/uncharted_waters
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seanvert/uncharted_waters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanvert%2Funcharted_waters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanvert%2Funcharted_waters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c946d748150d5a3809f633023cb0b76002104a5
[INFO] checking seanvert/uncharted_waters against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanvert%2Funcharted_waters" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seanvert/uncharted_waters on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seanvert/uncharted_waters
[INFO] finished tweaking git repo https://github.com/seanvert/uncharted_waters
[INFO] tweaked toml for git repo https://github.com/seanvert/uncharted_waters written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/seanvert/uncharted_waters 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.76.0
[INFO] [stderr]   Downloaded piston-gfx_texture v0.42.0
[INFO] [stderr]   Downloaded xdg v2.4.1
[INFO] [stderr]   Downloaded gfx_gl v0.6.1
[INFO] [stderr]   Downloaded piston_window v0.124.0
[INFO] [stderr]   Downloaded piston v0.53.1
[INFO] [stderr]   Downloaded ab_glyph_rasterizer v0.1.7
[INFO] [stderr]   Downloaded half v2.1.0
[INFO] [stderr]   Downloaded x11-dl v2.20.0
[INFO] [stderr]   Downloaded cc v1.0.74
[INFO] [stderr]   Downloaded image v0.24.4
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.70.1
[INFO] [stderr]   Downloaded tiff v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 755998f89bc165a6c84a423c0335397a1c6ac592de4da933884f488ea44472f2
[INFO] running `Command { std: "docker" "start" "-a" "755998f89bc165a6c84a423c0335397a1c6ac592de4da933884f488ea44472f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "755998f89bc165a6c84a423c0335397a1c6ac592de4da933884f488ea44472f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "755998f89bc165a6c84a423c0335397a1c6ac592de4da933884f488ea44472f2", kill_on_drop: false }`
[INFO] [stdout] 755998f89bc165a6c84a423c0335397a1c6ac592de4da933884f488ea44472f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7248e9dd6acc2e68663c02757a376ee4de122854dfe09659dac3f06381dd029
[INFO] running `Command { std: "docker" "start" "-a" "b7248e9dd6acc2e68663c02757a376ee4de122854dfe09659dac3f06381dd029", 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]     Checking piston-float v1.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.1
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.7
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking piston-viewport v1.0.2
[INFO] [stderr]     Checking either v1.8.0
[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 serde_derive v1.0.147
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-sink v0.3.25
[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" "b7248e9dd6acc2e68663c02757a376ee4de122854dfe09659dac3f06381dd029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7248e9dd6acc2e68663c02757a376ee4de122854dfe09659dac3f06381dd029", kill_on_drop: false }`
[INFO] [stdout] b7248e9dd6acc2e68663c02757a376ee4de122854dfe09659dac3f06381dd029