[INFO] cloning repository https://github.com/UWCS/go2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UWCS/go2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUWCS%2Fgo2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUWCS%2Fgo2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ed288019a7043e08dacbcc2a84c41aadf0a2a94
[INFO] checking UWCS/go2 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUWCS%2Fgo2" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/UWCS/go2
[INFO] finished tweaking git repo https://github.com/UWCS/go2
[INFO] tweaked toml for git repo https://github.com/UWCS/go2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/UWCS/go2 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/UWCS/go2 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dyn-clone v1.0.11
[INFO] [stderr]   Downloaded hashlink v0.8.2
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.86
[INFO] [stderr]   Downloaded rust-embed-impl v8.0.0
[INFO] [stderr]   Downloaded globset v0.4.10
[INFO] [stderr]   Downloaded signature v2.1.0
[INFO] [stderr]   Downloaded askama v0.12.0
[INFO] [stderr]   Downloaded basic-toml v0.1.2
[INFO] [stderr]   Downloaded askama_derive v0.12.1
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[INFO] [stderr]   Downloaded wasm-bindgen v0.2.86
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[INFO] [stderr]   Downloaded der v0.7.7
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[INFO] [stderr]   Downloaded axum v0.6.18
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[INFO] [stderr]   Downloaded rsa v0.9.2
[INFO] [stderr]   Downloaded sqlx-postgres v0.7.0
[INFO] [stderr]   Downloaded rustls-webpki v0.100.1
[INFO] [stderr]   Downloaded p384 v0.11.2
[INFO] [stderr]   Downloaded regex v1.9.0
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[INFO] [stderr]   Downloaded bumpalo v3.12.2
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[INFO] [stderr]   Downloaded rustls v0.21.1
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[INFO] [stderr]   Downloaded rsa v0.7.2
[INFO] [stderr]   Downloaded serde_with v1.14.0
[INFO] [stderr]   Downloaded time v0.3.21
[INFO] [stderr]   Downloaded hyper-rustls v0.24.0
[INFO] [stderr]   Downloaded tokio-rustls v0.24.0
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[INFO] [stderr]   Downloaded crypto-bigint v0.4.9
[INFO] [stderr]   Downloaded pkcs1 v0.4.1
[INFO] [stderr]   Downloaded zeroize v1.6.0
[INFO] [stderr]   Downloaded crc-catalog v2.2.0
[INFO] [stderr]   Downloaded const-oid v0.9.2
[INFO] [stderr]   Downloaded sqlformat v0.2.1
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[INFO] [stderr]   Downloaded crypto-mac v0.11.1
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[INFO] [stderr]   Downloaded rust-embed v8.0.0
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[INFO] [stderr]   Downloaded ff v0.12.1
[INFO] [stderr]   Downloaded group v0.12.1
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[INFO] [stderr]   Downloaded ahash v0.8.3
[INFO] [stderr]   Downloaded equivalent v1.0.0
[INFO] [stderr]   Downloaded js-sys v0.3.63
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[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.86
[INFO] [stderr]   Downloaded sqlx-core v0.7.0
[INFO] [stderr]   Downloaded askama_axum v0.3.0
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[INFO] [stderr]   Downloaded rfc6979 v0.3.1
[INFO] [stderr]   Downloaded serde_plain v1.0.1
[INFO] [stderr]   Downloaded rust-embed-utils v8.0.0
[INFO] [stderr]   Downloaded sqlx-macros v0.7.0
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[INFO] [stderr]   Downloaded sqlx-mysql v0.7.0
[INFO] [stderr]   Downloaded serde_derive v1.0.163
[INFO] [stderr]   Downloaded tracing-attributes v0.1.26
[INFO] [stderr]   Downloaded proc-macro2 v1.0.57
[INFO] [stderr]   Downloaded serde v1.0.163
[INFO] [stderr]   Downloaded serde_with_macros v1.5.2
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[INFO] [stderr]   Downloaded sqlx-sqlite v0.7.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ffabfc2c323187379b6bceffaf3d25c83ecb242c68a78989ee4b39719a454ea
[INFO] running `Command { std: "docker" "start" "-a" "4ffabfc2c323187379b6bceffaf3d25c83ecb242c68a78989ee4b39719a454ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ffabfc2c323187379b6bceffaf3d25c83ecb242c68a78989ee4b39719a454ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ffabfc2c323187379b6bceffaf3d25c83ecb242c68a78989ee4b39719a454ea", kill_on_drop: false }`
[INFO] [stdout] 4ffabfc2c323187379b6bceffaf3d25c83ecb242c68a78989ee4b39719a454ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8126e1dd4f2cd6255ea33d413e7739be26f134f999d640e049b8ebc169223f3
[INFO] running `Command { std: "docker" "start" "-a" "e8126e1dd4f2cd6255ea33d413e7739be26f134f999d640e049b8ebc169223f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.57
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.57/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]     Checking const-oid v0.9.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[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" "e8126e1dd4f2cd6255ea33d413e7739be26f134f999d640e049b8ebc169223f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8126e1dd4f2cd6255ea33d413e7739be26f134f999d640e049b8ebc169223f3", kill_on_drop: false }`
[INFO] [stdout] e8126e1dd4f2cd6255ea33d413e7739be26f134f999d640e049b8ebc169223f3