[INFO] cloning repository https://github.com/scottfones/plotters-viz-palettes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scottfones/plotters-viz-palettes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottfones%2Fplotters-viz-palettes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottfones%2Fplotters-viz-palettes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ab0e19cb046514cc96cc4733195b863457321c5
[INFO] checking scottfones/plotters-viz-palettes against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottfones%2Fplotters-viz-palettes" "/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/scottfones/plotters-viz-palettes
[INFO] finished tweaking git repo https://github.com/scottfones/plotters-viz-palettes
[INFO] tweaked toml for git repo https://github.com/scottfones/plotters-viz-palettes written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/scottfones/plotters-viz-palettes on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/scottfones/plotters-viz-palettes 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest v2.5.7
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded libc v0.2.141
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b62721dd9cdf0992729db9f33c9cf9c8e09c97e402103948c3c89090bf042fd9
[INFO] running `Command { std: "docker" "start" "-a" "b62721dd9cdf0992729db9f33c9cf9c8e09c97e402103948c3c89090bf042fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b62721dd9cdf0992729db9f33c9cf9c8e09c97e402103948c3c89090bf042fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62721dd9cdf0992729db9f33c9cf9c8e09c97e402103948c3c89090bf042fd9", kill_on_drop: false }`
[INFO] [stdout] b62721dd9cdf0992729db9f33c9cf9c8e09c97e402103948c3c89090bf042fd9
[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" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e2326ffe217cc03c726d13302c15a646f7f6581a3fbbc9d6bea62b2f41d6152
[INFO] running `Command { std: "docker" "start" "-a" "0e2326ffe217cc03c726d13302c15a646f7f6581a3fbbc9d6bea62b2f41d6152", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking const-cstr v0.3.0
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling font-kit v0.11.0
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.45
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0e2326ffe217cc03c726d13302c15a646f7f6581a3fbbc9d6bea62b2f41d6152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2326ffe217cc03c726d13302c15a646f7f6581a3fbbc9d6bea62b2f41d6152", kill_on_drop: false }`
[INFO] [stdout] 0e2326ffe217cc03c726d13302c15a646f7f6581a3fbbc9d6bea62b2f41d6152
