[INFO] fetching crate flashloan-rs 0.2.3...
[INFO] checking flashloan-rs-0.2.3 against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] extracting crate flashloan-rs 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate flashloan-rs 0.2.3 on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flashloan-rs 0.2.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate flashloan-rs 0.2.3
[INFO] tweaked toml for crates.io crate flashloan-rs 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate flashloan-rs 0.2.3 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded salsa20 v0.9.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded tracing-attributes v0.1.22
[INFO] [stderr]   Downloaded anyhow v1.0.65
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[INFO] [stderr]   Downloaded eth-keystore v0.4.2
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[INFO] [stderr]   Downloaded matchers v0.1.0
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[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded blake2 v0.10.4
[INFO] [stderr]   Downloaded rust_decimal v1.26.1
[INFO] [stderr]   Downloaded serde_json v1.0.85
[INFO] [stderr]   Downloaded impl-serde v0.3.2
[INFO] [stderr]   Downloaded der v0.6.0
[INFO] [stderr]   Downloaded ethers-providers v0.17.0
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[INFO] [stderr]   Downloaded webpki-roots v0.22.5
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[INFO] [stderr]   Downloaded thiserror v1.0.37
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[INFO] [stderr]   Downloaded uint v0.9.4
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[INFO] [stderr]   Downloaded ethers-middleware v0.17.0
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[INFO] [stderr]   Downloaded async-trait v0.1.57
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[INFO] [stderr]   Downloaded cipher v0.3.0
[INFO] [stderr]   Downloaded camino v1.1.1
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[INFO] [stderr]   Downloaded futures-locks v0.7.0
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[INFO] [stderr]   Downloaded parity-scale-codec-derive v3.1.3
[INFO] [stderr]   Downloaded ethereum-types v0.13.1
[INFO] [stderr]   Downloaded fastrlp-derive v0.1.2
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[INFO] [stderr]   Downloaded password-hash v0.3.2
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[INFO] [stderr]   Downloaded scrypt v0.8.1
[INFO] [stderr]   Downloaded ethers-signers v0.17.0
[INFO] [stderr]   Downloaded tracing-log v0.1.3
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[INFO] [stderr]   Downloaded tracing-test-macro v0.2.3
[INFO] [stderr]   Downloaded ethers-addressbook v0.17.0
[INFO] [stderr]   Downloaded ethbloom v0.12.1
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[INFO] [stderr]   Downloaded futures-macro v0.3.24
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[INFO] [stderr]   Downloaded ethabi v17.2.0
[INFO] [stderr]   Downloaded auto_impl v1.0.1
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[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47642d154b6d274d5d7bd9eb1c9e6214c6a95f0e6a60559a84d44f8022c41173
[INFO] running `Command { std: "docker" "start" "-a" "47642d154b6d274d5d7bd9eb1c9e6214c6a95f0e6a60559a84d44f8022c41173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47642d154b6d274d5d7bd9eb1c9e6214c6a95f0e6a60559a84d44f8022c41173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47642d154b6d274d5d7bd9eb1c9e6214c6a95f0e6a60559a84d44f8022c41173", kill_on_drop: false }`
[INFO] [stdout] 47642d154b6d274d5d7bd9eb1c9e6214c6a95f0e6a60559a84d44f8022c41173
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae730b3292e2c63f6ec285f8c7160a64bfa02c8ba9505223af1803f9e8d970bf
[INFO] running `Command { std: "docker" "start" "-a" "ae730b3292e2c63f6ec285f8c7160a64bfa02c8ba9505223af1803f9e8d970bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking zeroize v1.5.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking const-oid v0.9.0
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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 tokio v1.21.2
[INFO] [stderr]     Checking der v0.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stdout] error: aborting due to 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" "ae730b3292e2c63f6ec285f8c7160a64bfa02c8ba9505223af1803f9e8d970bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae730b3292e2c63f6ec285f8c7160a64bfa02c8ba9505223af1803f9e8d970bf", kill_on_drop: false }`
[INFO] [stdout] ae730b3292e2c63f6ec285f8c7160a64bfa02c8ba9505223af1803f9e8d970bf