[INFO] fetching crate nym-mixnet-contract 1.4.0...
[INFO] testing nym-mixnet-contract-1.4.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate nym-mixnet-contract 1.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate nym-mixnet-contract 1.4.0
[INFO] finished tweaking crates.io crate nym-mixnet-contract 1.4.0
[INFO] tweaked toml for crates.io crate nym-mixnet-contract 1.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nym-mixnet-contract 1.4.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nym-mixnet-contract 1.4.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-macros v0.2.8
[INFO] [stderr]   Downloaded enum-iterator-derive v1.2.0
[INFO] [stderr]   Downloaded nym-contracts-common v0.4.0
[INFO] [stderr]   Downloaded semver v1.0.17
[INFO] [stderr]   Downloaded cosmwasm-schema v1.0.0
[INFO] [stderr]   Downloaded cw2 v0.13.4
[INFO] [stderr]   Downloaded humantime-serde v1.1.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded cosmwasm-storage v1.0.0
[INFO] [stderr]   Downloaded rfc6979 v0.3.1
[INFO] [stderr]   Downloaded ed25519-zebra v3.1.0
[INFO] [stderr]   Downloaded cw-storage-plus v0.13.4
[INFO] [stderr]   Downloaded elliptic-curve v0.12.3
[INFO] [stderr]   Downloaded ahash v0.7.6
[INFO] [stderr]   Downloaded git2 v0.14.4
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded k256 v0.11.6
[INFO] [stderr]   Downloaded serde_json v1.0.96
[INFO] [stderr]   Downloaded ecdsa v0.14.8
[INFO] [stderr]   Downloaded crypto-bigint v0.4.9
[INFO] [stderr]   Downloaded const-oid v0.9.2
[INFO] [stderr]   Downloaded serde-json-wasm v0.4.1
[INFO] [stderr]   Downloaded cosmwasm-std v1.0.0
[INFO] [stderr]   Downloaded schemars v0.8.12
[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] [stderr]   Downloaded nym-mixnet-contract-common v0.5.0
[INFO] [stderr]   Downloaded serde_derive_internals v0.26.0
[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded group v0.12.1
[INFO] [stderr]   Downloaded forward_ref v1.0.0
[INFO] [stderr]   Downloaded schemars_derive v0.8.12
[INFO] [stderr]   Downloaded getset v0.1.2
[INFO] [stderr]   Downloaded jobserver v0.1.26
[INFO] [stderr]   Downloaded cosmwasm-crypto v1.2.4
[INFO] [stderr]   Downloaded cosmwasm-derive v1.0.0
[INFO] [stderr]   Downloaded dyn-clone v1.0.11
[INFO] [stderr]   Downloaded opaque-debug v0.3.0
[INFO] [stderr]   Downloaded ff v0.12.1
[INFO] [stderr]   Downloaded base16ct v0.1.1
[INFO] [stderr]   Downloaded sec1 v0.3.0
[INFO] [stderr]   Downloaded zeroize v1.6.0
[INFO] [stderr]   Downloaded enum-iterator v1.1.3
[INFO] [stderr]   Downloaded vergen v7.4.3
[INFO] [stderr]   Downloaded nym-vesting-contract-common v0.6.0
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] [stderr]   Downloaded libgit2-sys v0.13.5+1.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 222200a5206f024d32c3c0b92ba6be77b05d51a8c8a0dfc16cc38015a7766adb
[INFO] running `Command { std: "docker" "start" "-a" "222200a5206f024d32c3c0b92ba6be77b05d51a8c8a0dfc16cc38015a7766adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "222200a5206f024d32c3c0b92ba6be77b05d51a8c8a0dfc16cc38015a7766adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222200a5206f024d32c3c0b92ba6be77b05d51a8c8a0dfc16cc38015a7766adb", kill_on_drop: false }`
[INFO] [stdout] 222200a5206f024d32c3c0b92ba6be77b05d51a8c8a0dfc16cc38015a7766adb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7197489e8007854b8163f9234a481750c4482acf3eb02195adc1d2a6ec8ea34
[INFO] running `Command { std: "docker" "start" "-a" "b7197489e8007854b8163f9234a481750c4482acf3eb02195adc1d2a6ec8ea34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zeroize v1.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling const-oid v0.9.2
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling cpufeatures v0.2.7
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling der v0.6.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling pkg-config v0.3.26
[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 crunchy v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[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" "b7197489e8007854b8163f9234a481750c4482acf3eb02195adc1d2a6ec8ea34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7197489e8007854b8163f9234a481750c4482acf3eb02195adc1d2a6ec8ea34", kill_on_drop: false }`
[INFO] [stdout] b7197489e8007854b8163f9234a481750c4482acf3eb02195adc1d2a6ec8ea34
