[INFO] fetching crate pgfplots 0.5.1...
[INFO] checking pgfplots-0.5.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate pgfplots 0.5.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate pgfplots 0.5.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pgfplots 0.5.1
[INFO] finished tweaking crates.io crate pgfplots 0.5.1
[INFO] tweaked toml for crates.io crate pgfplots 0.5.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate pgfplots 0.5.1 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tectonic_dep_support v0.1.0
[INFO] [stderr]   Downloaded filetime v0.2.18
[INFO] [stderr]   Downloaded watchexec v1.17.1
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded tectonic_xetex_layout v0.2.1
[INFO] [stderr]   Downloaded open v1.7.1
[INFO] [stderr]   Downloaded tectonic_status_base v0.2.0
[INFO] [stderr]   Downloaded tectonic_geturl v0.3.1
[INFO] [stderr]   Downloaded tectonic_docmodel v0.2.0
[INFO] [stderr]   Downloaded tectonic_bridge_flate v0.1.6
[INFO] [stderr]   Downloaded tectonic_errors v0.2.0
[INFO] [stderr]   Downloaded tectonic_bridge_freetype2 v0.2.0
[INFO] [stderr]   Downloaded byte-unit v4.0.17
[INFO] [stderr]   Downloaded html-escape v0.2.12
[INFO] [stderr]   Downloaded tectonic_bundles v0.3.0
[INFO] [stderr]   Downloaded pinot v0.1.5
[INFO] [stderr]   Downloaded tectonic_engine_bibtex v0.1.4
[INFO] [stderr]   Downloaded clearscreen v1.0.10
[INFO] [stderr]   Downloaded command-group v1.0.8
[INFO] [stderr]   Downloaded tectonic_engine_spx2html v0.2.1
[INFO] [stderr]   Downloaded tectonic_bridge_core v0.3.1
[INFO] [stderr]   Downloaded tectonic_engine_xdvipdfmx v0.4.0
[INFO] [stderr]   Downloaded xdg v2.4.1
[INFO] [stderr]   Downloaded tectonic_io_base v0.4.1
[INFO] [stderr]   Downloaded tectonic_xdv v0.2.1
[INFO] [stderr]   Downloaded app_dirs2 v2.5.4
[INFO] [stderr]   Downloaded tectonic_bridge_graphite2 v0.2.1
[INFO] [stderr]   Downloaded tectonic_bridge_icu v0.2.0
[INFO] [stderr]   Downloaded tectonic_cfg_support v0.1.4
[INFO] [stderr]   Downloaded tectonic_engine_xetex v0.4.1
[INFO] [stderr]   Downloaded tectonic_pdf_io v0.4.0
[INFO] [stderr]   Downloaded tectonic_bridge_harfbuzz v0.2.7
[INFO] [stderr]   Downloaded tectonic v0.12.0
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea7a0769410f2294eb55f22cdf20c218cbd7e7bfbfaf6b08e3e591552e7242b4
[INFO] running `Command { std: "docker" "start" "-a" "ea7a0769410f2294eb55f22cdf20c218cbd7e7bfbfaf6b08e3e591552e7242b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea7a0769410f2294eb55f22cdf20c218cbd7e7bfbfaf6b08e3e591552e7242b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea7a0769410f2294eb55f22cdf20c218cbd7e7bfbfaf6b08e3e591552e7242b4", kill_on_drop: false }`
[INFO] [stdout] ea7a0769410f2294eb55f22cdf20c218cbd7e7bfbfaf6b08e3e591552e7242b4
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75afe68dfebb586b42a4d09099a69f488df9b3f50dbc0eff0928d41f0bb0ef26
[INFO] running `Command { std: "docker" "start" "-a" "75afe68dfebb586b42a4d09099a69f488df9b3f50dbc0eff0928d41f0bb0ef26", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[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] [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" "75afe68dfebb586b42a4d09099a69f488df9b3f50dbc0eff0928d41f0bb0ef26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75afe68dfebb586b42a4d09099a69f488df9b3f50dbc0eff0928d41f0bb0ef26", kill_on_drop: false }`
[INFO] [stdout] 75afe68dfebb586b42a4d09099a69f488df9b3f50dbc0eff0928d41f0bb0ef26
