[INFO] cloning repository https://github.com/vikram-kangotra/Sudoku-Detector
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vikram-kangotra/Sudoku-Detector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikram-kangotra%2FSudoku-Detector", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikram-kangotra%2FSudoku-Detector'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8610fe51768dab86113a4c11eb56580a0c598c32
[INFO] checking vikram-kangotra/Sudoku-Detector against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikram-kangotra%2FSudoku-Detector" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vikram-kangotra/Sudoku-Detector
[INFO] finished tweaking git repo https://github.com/vikram-kangotra/Sudoku-Detector
[INFO] tweaked toml for git repo https://github.com/vikram-kangotra/Sudoku-Detector written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vikram-kangotra/Sudoku-Detector on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vikram-kangotra/Sudoku-Detector 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "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 tract-data v0.18.5
[INFO] [stderr]   Downloaded educe v0.4.20
[INFO] [stderr]   Downloaded half v2.1.0
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.12
[INFO] [stderr]   Downloaded liquid v0.26.0
[INFO] [stderr]   Downloaded prost-derive v0.11.5
[INFO] [stderr]   Downloaded kstring v2.0.0
[INFO] [stderr]   Downloaded prost v0.11.5
[INFO] [stderr]   Downloaded prost-types v0.11.5
[INFO] [stderr]   Downloaded liquid-lib v0.26.0
[INFO] [stderr]   Downloaded clang v2.0.0
[INFO] [stderr]   Downloaded opencv-binding-generator v0.57.0
[INFO] [stderr]   Downloaded liquid-core v0.26.0
[INFO] [stderr]   Downloaded pest v2.5.2
[INFO] [stderr]   Downloaded tract-hir v0.18.5
[INFO] [stderr]   Downloaded tract-linalg v0.18.5
[INFO] [stderr]   Downloaded tract-core v0.18.5
[INFO] [stderr]   Downloaded tract-nnef v0.18.5
[INFO] [stderr]   Downloaded pest_meta v2.5.2
[INFO] [stderr]   Downloaded dyn-clone v1.0.10
[INFO] [stderr]   Downloaded proc-quote-impl v0.3.2
[INFO] [stderr]   Downloaded proc-quote v0.4.0
[INFO] [stderr]   Downloaded liquid-derive v0.26.0
[INFO] [stderr]   Downloaded pest_derive v2.5.2
[INFO] [stderr]   Downloaded pest_generator v2.5.2
[INFO] [stderr]   Downloaded tract-pulse-opl v0.18.5
[INFO] [stderr]   Downloaded tract-pulse v0.18.5
[INFO] [stderr]   Downloaded opencv v0.78.0
[INFO] [stderr]   Downloaded tract-tensorflow v0.18.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 204ec9b526158e5860133c18718feff067d8ac966d2882ab9c91b1da338c8266
[INFO] running `Command { std: "docker" "start" "-a" "204ec9b526158e5860133c18718feff067d8ac966d2882ab9c91b1da338c8266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "204ec9b526158e5860133c18718feff067d8ac966d2882ab9c91b1da338c8266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "204ec9b526158e5860133c18718feff067d8ac966d2882ab9c91b1da338c8266", kill_on_drop: false }`
[INFO] [stdout] 204ec9b526158e5860133c18718feff067d8ac966d2882ab9c91b1da338c8266
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32ee5a0e75b584f7c5537fa0e5890e217bcc3a1c5fe71858970dd833cd61e265
[INFO] running `Command { std: "docker" "start" "-a" "32ee5a0e75b584f7c5537fa0e5890e217bcc3a1c5fe71858970dd833cd61e265", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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 aho-corasick v0.7.20
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling anyhow v1.0.68
[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" "32ee5a0e75b584f7c5537fa0e5890e217bcc3a1c5fe71858970dd833cd61e265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ee5a0e75b584f7c5537fa0e5890e217bcc3a1c5fe71858970dd833cd61e265", kill_on_drop: false }`
[INFO] [stdout] 32ee5a0e75b584f7c5537fa0e5890e217bcc3a1c5fe71858970dd833cd61e265
