[INFO] cloning repository https://github.com/maksymalist/rust-tensorflow-mini
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maksymalist/rust-tensorflow-mini" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaksymalist%2Frust-tensorflow-mini", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaksymalist%2Frust-tensorflow-mini'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10825f7b070abd68696f8a636be9d9f9b726ace5
[INFO] checking maksymalist/rust-tensorflow-mini against try#723ab942d877517caf445dafde0416803ef56501 for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaksymalist%2Frust-tensorflow-mini" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maksymalist/rust-tensorflow-mini
[INFO] finished tweaking git repo https://github.com/maksymalist/rust-tensorflow-mini
[INFO] tweaked toml for git repo https://github.com/maksymalist/rust-tensorflow-mini written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maksymalist/rust-tensorflow-mini on toolchain 723ab942d877517caf445dafde0416803ef56501
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maksymalist/rust-tensorflow-mini 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" "+723ab942d877517caf445dafde0416803ef56501" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded iana-time-zone v0.1.54
[INFO] [stderr]   Downloaded cmake v0.1.49
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.93
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded ucd-trie v0.1.5
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded pest v2.5.6
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.93
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded syn v2.0.4
[INFO] [stderr]   Downloaded cxx-build v1.0.93
[INFO] [stderr]   Downloaded cxx v1.0.93
[INFO] [stderr]   Downloaded windows v0.46.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94d7e89a605490662562c2b4e55f5609707adfce128ea479c97b3774b04667dd
[INFO] running `Command { std: "docker" "start" "-a" "94d7e89a605490662562c2b4e55f5609707adfce128ea479c97b3774b04667dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94d7e89a605490662562c2b4e55f5609707adfce128ea479c97b3774b04667dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d7e89a605490662562c2b4e55f5609707adfce128ea479c97b3774b04667dd", kill_on_drop: false }`
[INFO] [stdout] 94d7e89a605490662562c2b4e55f5609707adfce128ea479c97b3774b04667dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 493cfb207b39f1bb33343fe775c9a3916be0bfa3b22f83dd515a959514c1a4b8
[INFO] running `Command { std: "docker" "start" "-a" "493cfb207b39f1bb33343fe775c9a3916be0bfa3b22f83dd515a959514c1a4b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[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 thiserror v1.0.40
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.164
[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]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking color_quant v1.1.0
[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 rawpointer v0.2.1
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking const-cstr v0.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.54
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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_json v1.0.99
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]    Compiling cmake v0.1.49
[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" "493cfb207b39f1bb33343fe775c9a3916be0bfa3b22f83dd515a959514c1a4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493cfb207b39f1bb33343fe775c9a3916be0bfa3b22f83dd515a959514c1a4b8", kill_on_drop: false }`
[INFO] [stdout] 493cfb207b39f1bb33343fe775c9a3916be0bfa3b22f83dd515a959514c1a4b8