[INFO] cloning repository https://github.com/CeciliaZ030/halo2-fib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CeciliaZ030/halo2-fib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCeciliaZ030%2Fhalo2-fib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCeciliaZ030%2Fhalo2-fib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f39c990242622dfe99c9cacaac2500b92173f2e4
[INFO] checking CeciliaZ030/halo2-fib/f39c990242622dfe99c9cacaac2500b92173f2e4 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCeciliaZ030%2Fhalo2-fib" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/CeciliaZ030/halo2-fib on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CeciliaZ030/halo2-fib
[INFO] finished tweaking git repo https://github.com/CeciliaZ030/halo2-fib
[INFO] tweaked toml for git repo https://github.com/CeciliaZ030/halo2-fib written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CeciliaZ030/halo2-fib 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating git repository `https://github.com/zcash/halo2.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ethers-core v0.6.3
[INFO] [stderr]   Downloaded ethers-providers v0.6.2
[INFO] [stderr]   Downloaded ethabi v15.0.0
[INFO] [stderr]   Downloaded pretty_assertions v1.3.0
[INFO] [stderr]   Downloaded halo2_proofs v0.1.0
[INFO] [stderr]   Downloaded sha3 v0.7.3
[INFO] [stderr]   Downloaded gobuild v0.1.0-alpha.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5d2112c4eee482a0fc5a71fb6d7fb0ad54b981622fd68c2206351cf5a299598
[INFO] running `Command { std: "docker" "start" "-a" "c5d2112c4eee482a0fc5a71fb6d7fb0ad54b981622fd68c2206351cf5a299598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5d2112c4eee482a0fc5a71fb6d7fb0ad54b981622fd68c2206351cf5a299598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d2112c4eee482a0fc5a71fb6d7fb0ad54b981622fd68c2206351cf5a299598", kill_on_drop: false }`
[INFO] [stdout] c5d2112c4eee482a0fc5a71fb6d7fb0ad54b981622fd68c2206351cf5a299598
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec53ae07a7c0a3da9f4f94737ac299f63e5f526ac9ad56fa418e4895a54ce97a
[INFO] running `Command { std: "docker" "start" "-a" "ec53ae07a7c0a3da9f4f94737ac299f63e5f526ac9ad56fa418e4895a54ce97a", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling toml_datetime v0.5.1
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 block-padding v0.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking zeroize v1.4.3
[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" "ec53ae07a7c0a3da9f4f94737ac299f63e5f526ac9ad56fa418e4895a54ce97a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec53ae07a7c0a3da9f4f94737ac299f63e5f526ac9ad56fa418e4895a54ce97a", kill_on_drop: false }`
[INFO] [stdout] ec53ae07a7c0a3da9f4f94737ac299f63e5f526ac9ad56fa418e4895a54ce97a