[INFO] cloning repository https://github.com/realzhujunhao/jhplot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realzhujunhao/jhplot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealzhujunhao%2Fjhplot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealzhujunhao%2Fjhplot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7b8d0e4105b7860cf9e59e3d0ea53bcad93b708
[INFO] building realzhujunhao/jhplot against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealzhujunhao%2Fjhplot" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/realzhujunhao/jhplot
[INFO] finished tweaking git repo https://github.com/realzhujunhao/jhplot
[INFO] tweaked toml for git repo https://github.com/realzhujunhao/jhplot written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/realzhujunhao/jhplot on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/realzhujunhao/jhplot 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64fdd5d320555a1b8239fb1a6697d1ec71846569c8e0e22a5b018b95079ac7c5
[INFO] running `Command { std: "docker" "start" "-a" "64fdd5d320555a1b8239fb1a6697d1ec71846569c8e0e22a5b018b95079ac7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64fdd5d320555a1b8239fb1a6697d1ec71846569c8e0e22a5b018b95079ac7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64fdd5d320555a1b8239fb1a6697d1ec71846569c8e0e22a5b018b95079ac7c5", kill_on_drop: false }`
[INFO] [stdout] 64fdd5d320555a1b8239fb1a6697d1ec71846569c8e0e22a5b018b95079ac7c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eab158ed02f9f2e09743b6d8ebd73875f292d262c8508048cd815d78727936b0
[INFO] running `Command { std: "docker" "start" "-a" "eab158ed02f9f2e09743b6d8ebd73875f292d262c8508048cd815d78727936b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling futures-sink v0.3.27
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.54/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 phf_shared v0.11.1
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]    Compiling cmake v0.1.50
[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" "eab158ed02f9f2e09743b6d8ebd73875f292d262c8508048cd815d78727936b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eab158ed02f9f2e09743b6d8ebd73875f292d262c8508048cd815d78727936b0", kill_on_drop: false }`
[INFO] [stdout] eab158ed02f9f2e09743b6d8ebd73875f292d262c8508048cd815d78727936b0