[INFO] fetching crate ekt 0.1.4...
[INFO] checking ekt-0.1.4 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ekt 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ekt 0.1.4
[INFO] finished tweaking crates.io crate ekt 0.1.4
[INFO] tweaked toml for crates.io crate ekt 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ekt 0.1.4 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ekt 0.1.4 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ethers v2.0.3
[INFO] [stderr]   Downloaded dialoguer v0.8.0
[INFO] [stderr]   Downloaded svm-rs v0.2.22
[INFO] [stderr]   Downloaded indicatif v0.16.2
[INFO] [stderr]   Downloaded ethers-contract-derive v2.0.3
[INFO] [stderr]   Downloaded ethers-addressbook v2.0.3
[INFO] [stderr]   Downloaded prettyplease v0.2.4
[INFO] [stderr]   Downloaded enr v0.8.0
[INFO] [stderr]   Downloaded ethers-etherscan v2.0.3
[INFO] [stderr]   Downloaded crypto-bigint v0.5.1
[INFO] [stderr]   Downloaded ethers-solc v2.0.3
[INFO] [stderr]   Downloaded ethers-providers v2.0.3
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded der v0.7.3
[INFO] [stderr]   Downloaded parity-scale-codec v3.4.0
[INFO] [stderr]   Downloaded ethers-core v2.0.3
[INFO] [stderr]   Downloaded openssl v0.10.50
[INFO] [stderr]   Downloaded ecdsa v0.16.6
[INFO] [stderr]   Downloaded elliptic-curve v0.13.4
[INFO] [stderr]   Downloaded scale-info v2.5.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.9
[INFO] [stderr]   Downloaded h2 v0.3.17
[INFO] [stderr]   Downloaded keccak v0.1.3
[INFO] [stderr]   Downloaded num_enum_derive v0.6.0
[INFO] [stderr]   Downloaded lalrpop v0.19.9
[INFO] [stderr]   Downloaded num_enum v0.6.0
[INFO] [stderr]   Downloaded scale-info-derive v2.5.0
[INFO] [stderr]   Downloaded ethers-contract-abigen v2.0.3
[INFO] [stderr]   Downloaded ethers-contract v2.0.3
[INFO] [stderr]   Downloaded ethers-middleware v2.0.3
[INFO] [stderr]   Downloaded spki v0.7.1
[INFO] [stderr]   Downloaded ethers-signers v2.0.3
[INFO] [stderr]   Downloaded openssl-sys v0.9.85
[INFO] [stderr]   Downloaded sha3 v0.10.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cecf361d23255467e38fa21028f2f81eef03947a9dc30f1fb47907e2f9d45d45
[INFO] running `Command { std: "docker" "start" "-a" "cecf361d23255467e38fa21028f2f81eef03947a9dc30f1fb47907e2f9d45d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cecf361d23255467e38fa21028f2f81eef03947a9dc30f1fb47907e2f9d45d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cecf361d23255467e38fa21028f2f81eef03947a9dc30f1fb47907e2f9d45d45", kill_on_drop: false }`
[INFO] [stdout] cecf361d23255467e38fa21028f2f81eef03947a9dc30f1fb47907e2f9d45d45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e7e8a85a93a434f63f7174736e910ef9d50c10a7a8c298893e7eafd9ef1e3d5
[INFO] running `Command { std: "docker" "start" "-a" "6e7e8a85a93a434f63f7174736e910ef9d50c10a7a8c298893e7eafd9ef1e3d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling winnow v0.4.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking const-oid v0.9.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking cpufeatures v0.2.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking der v0.7.3
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[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" "6e7e8a85a93a434f63f7174736e910ef9d50c10a7a8c298893e7eafd9ef1e3d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7e8a85a93a434f63f7174736e910ef9d50c10a7a8c298893e7eafd9ef1e3d5", kill_on_drop: false }`
[INFO] [stdout] 6e7e8a85a93a434f63f7174736e910ef9d50c10a7a8c298893e7eafd9ef1e3d5