[INFO] cloning repository https://github.com/Arc-blroth/aisafety-connect4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arc-blroth/aisafety-connect4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArc-blroth%2Faisafety-connect4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArc-blroth%2Faisafety-connect4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd616f4ff0a8e49dc54a633a58ff77448aed24c1
[INFO] checking Arc-blroth/aisafety-connect4 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArc-blroth%2Faisafety-connect4" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Arc-blroth/aisafety-connect4
[INFO] finished tweaking git repo https://github.com/Arc-blroth/aisafety-connect4
[INFO] tweaked toml for git repo https://github.com/Arc-blroth/aisafety-connect4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Arc-blroth/aisafety-connect4 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Arc-blroth/aisafety-connect4 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded filetime v0.2.18
[INFO] [stderr]   Downloaded tensorflow-internal-macros v0.0.3
[INFO] [stderr]   Downloaded zip v0.6.3
[INFO] [stderr]   Downloaded jobserver v0.1.25
[INFO] [stderr]   Downloaded bzip2 v0.4.3
[INFO] [stderr]   Downloaded tensorflow-sys v0.22.1
[INFO] [stderr]   Downloaded base64ct v1.5.3
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded protobuf v2.27.1
[INFO] [stderr]   Downloaded tensorflow v0.19.1
[INFO] [stderr]   Downloaded curl-sys v0.4.58+curl-7.86.0
[INFO] [stderr]   Downloaded libz-sys v1.1.8
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 871af3b55412c7f0c70f987b3979bc56039786fa305512360c467e3cda943928
[INFO] running `Command { std: "docker" "start" "-a" "871af3b55412c7f0c70f987b3979bc56039786fa305512360c467e3cda943928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "871af3b55412c7f0c70f987b3979bc56039786fa305512360c467e3cda943928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871af3b55412c7f0c70f987b3979bc56039786fa305512360c467e3cda943928", kill_on_drop: false }`
[INFO] [stdout] 871af3b55412c7f0c70f987b3979bc56039786fa305512360c467e3cda943928
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46bc3c827c140731fb6187f327894fdc5eb431f22b2bf3e12ba3be6d5a4a187b
[INFO] running `Command { std: "docker" "start" "-a" "46bc3c827c140731fb6187f327894fdc5eb431f22b2bf3e12ba3be6d5a4a187b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]    Compiling base64ct v1.5.3
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling time-macros v0.2.5
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling protobuf v2.27.1
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] 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]     Checking half v1.8.2
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]    Compiling password-hash v0.4.2
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "46bc3c827c140731fb6187f327894fdc5eb431f22b2bf3e12ba3be6d5a4a187b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46bc3c827c140731fb6187f327894fdc5eb431f22b2bf3e12ba3be6d5a4a187b", kill_on_drop: false }`
[INFO] [stdout] 46bc3c827c140731fb6187f327894fdc5eb431f22b2bf3e12ba3be6d5a4a187b
