[INFO] cloning repository https://github.com/Stephen-Kimoi/ICP-Eth-Exchange
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Stephen-Kimoi/ICP-Eth-Exchange" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephen-Kimoi%2FICP-Eth-Exchange", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephen-Kimoi%2FICP-Eth-Exchange'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d5ef14805b8261cee61961182540fb09e90cd86
[INFO] checking Stephen-Kimoi/ICP-Eth-Exchange against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephen-Kimoi%2FICP-Eth-Exchange" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Stephen-Kimoi/ICP-Eth-Exchange on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Stephen-Kimoi/ICP-Eth-Exchange
[INFO] finished tweaking git repo https://github.com/Stephen-Kimoi/ICP-Eth-Exchange
[INFO] tweaked toml for git repo https://github.com/Stephen-Kimoi/ICP-Eth-Exchange written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Stephen-Kimoi/ICP-Eth-Exchange 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ic0 v0.21.1
[INFO] [stderr]   Downloaded ic_principal v0.1.0
[INFO] [stderr]   Downloaded pretty v0.12.3
[INFO] [stderr]   Downloaded candid v0.10.0
[INFO] [stderr]   Downloaded b3_utils v0.8.4
[INFO] [stderr]   Downloaded candid_derive v0.6.5
[INFO] [stderr]   Downloaded ic-cdk-macros v0.8.2
[INFO] [stderr]   Downloaded ic-cdk v0.12.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2181c5542a39dece470812a503658881cb0dacbb44e4cb5278183b3c597b3120
[INFO] running `Command { std: "docker" "start" "-a" "2181c5542a39dece470812a503658881cb0dacbb44e4cb5278183b3c597b3120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2181c5542a39dece470812a503658881cb0dacbb44e4cb5278183b3c597b3120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2181c5542a39dece470812a503658881cb0dacbb44e4cb5278183b3c597b3120", kill_on_drop: false }`
[INFO] [stdout] 2181c5542a39dece470812a503658881cb0dacbb44e4cb5278183b3c597b3120
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecbeee91a7fdf9009656f99c6e541ef77c194eea08995dd18c7ba33a4cdbbac2
[INFO] running `Command { std: "docker" "start" "-a" "ecbeee91a7fdf9009656f99c6e541ef77c194eea08995dd18c7ba33a4cdbbac2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling cpufeatures v0.2.7
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling data-encoding v2.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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 slotmap v1.0.7
[INFO] [stderr]    Compiling pretty v0.12.3
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ecbeee91a7fdf9009656f99c6e541ef77c194eea08995dd18c7ba33a4cdbbac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecbeee91a7fdf9009656f99c6e541ef77c194eea08995dd18c7ba33a4cdbbac2", kill_on_drop: false }`
[INFO] [stdout] ecbeee91a7fdf9009656f99c6e541ef77c194eea08995dd18c7ba33a4cdbbac2