[INFO] fetching crate cfmms 0.6.2...
[INFO] testing cfmms-0.6.2 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate cfmms 0.6.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate cfmms 0.6.2
[INFO] finished tweaking crates.io crate cfmms 0.6.2
[INFO] tweaked toml for crates.io crate cfmms 0.6.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cfmms 0.6.2 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cfmms 0.6.2 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uniswap_v3_math v0.2.26
[INFO] [stderr]   Downloaded ruint-macro v1.0.2
[INFO] [stderr]   Downloaded solang-parser v0.2.3
[INFO] [stderr]   Downloaded ethers-addressbook v2.0.0
[INFO] [stderr]   Downloaded ethers-signers v2.0.0
[INFO] [stderr]   Downloaded ethers-contract-derive v2.0.0
[INFO] [stderr]   Downloaded ethers-etherscan v2.0.0
[INFO] [stderr]   Downloaded ethers-contract-abigen v2.0.0
[INFO] [stderr]   Downloaded ethers-middleware v2.0.0
[INFO] [stderr]   Downloaded ethers v2.0.0
[INFO] [stderr]   Downloaded ethers-contract v2.0.0
[INFO] [stderr]   Downloaded ruint v1.7.0
[INFO] [stderr]   Downloaded ethers-providers v2.0.0
[INFO] [stderr]   Downloaded ethers-core v2.0.0
[INFO] [stderr]   Downloaded num-bigfloat v1.6.2
[INFO] [stderr]   Downloaded ethers-solc v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 718e1ea718da8e1f3c5e8e386e0fb9d7b8bc01209959db80f10a199b23cc69d1
[INFO] running `Command { std: "docker" "start" "-a" "718e1ea718da8e1f3c5e8e386e0fb9d7b8bc01209959db80f10a199b23cc69d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "718e1ea718da8e1f3c5e8e386e0fb9d7b8bc01209959db80f10a199b23cc69d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718e1ea718da8e1f3c5e8e386e0fb9d7b8bc01209959db80f10a199b23cc69d1", kill_on_drop: false }`
[INFO] [stdout] 718e1ea718da8e1f3c5e8e386e0fb9d7b8bc01209959db80f10a199b23cc69d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7160b7eb8420706d85ad66382935ee7d600590fe258cc427275df626307a62b
[INFO] running `Command { std: "docker" "start" "-a" "d7160b7eb8420706d85ad66382935ee7d600590fe258cc427275df626307a62b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling base64ct v1.5.3
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling const-oid v0.9.1
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling keccak v0.1.3
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling der v0.6.1
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling camino v1.1.1
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling rustix v0.36.7
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling rand v0.8.5
[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" "d7160b7eb8420706d85ad66382935ee7d600590fe258cc427275df626307a62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7160b7eb8420706d85ad66382935ee7d600590fe258cc427275df626307a62b", kill_on_drop: false }`
[INFO] [stdout] d7160b7eb8420706d85ad66382935ee7d600590fe258cc427275df626307a62b