[INFO] fetching crate howmuch-rs 0.1.1...
[INFO] testing howmuch-rs-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate howmuch-rs 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate howmuch-rs 0.1.1
[INFO] finished tweaking crates.io crate howmuch-rs 0.1.1
[INFO] tweaked toml for crates.io crate howmuch-rs 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate howmuch-rs 0.1.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate howmuch-rs 0.1.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded openssl-sys v0.9.79
[INFO] [stderr]   Downloaded is-terminal v0.4.1
[INFO] [stderr]   Downloaded keccak v0.1.3
[INFO] [stderr]   Downloaded scale-info-derive v2.3.0
[INFO] [stderr]   Downloaded auto_impl v0.5.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.3
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[INFO] [stderr]   Downloaded wasm-timer v0.2.5
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[INFO] [stderr]   Downloaded ethers-middleware v1.0.2
[INFO] [stderr]   Downloaded ethers-providers v1.0.2
[INFO] [stderr]   Downloaded scale-info v2.3.0
[INFO] [stderr]   Downloaded tokio v1.23.0
[INFO] [stderr]   Downloaded ethers-contract-derive v1.0.2
[INFO] [stderr]   Downloaded openssl v0.10.44
[INFO] [stderr]   Downloaded ethers-contract v1.0.2
[INFO] [stderr]   Downloaded ethers-core v1.0.2
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[INFO] [stderr]   Downloaded const-oid v0.9.1
[INFO] [stderr]   Downloaded async-trait v0.1.59
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[INFO] [stderr]   Downloaded cargo-platform v0.1.2
[INFO] [stderr]   Downloaded auto_impl v1.0.1
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[INFO] [stderr]   Downloaded linux-raw-sys v0.1.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92445de04170bcb41ab2e18db7b2fb9da3c340663f31d89aa885dc0620b0a1c4
[INFO] running `Command { std: "docker" "start" "-a" "92445de04170bcb41ab2e18db7b2fb9da3c340663f31d89aa885dc0620b0a1c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92445de04170bcb41ab2e18db7b2fb9da3c340663f31d89aa885dc0620b0a1c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92445de04170bcb41ab2e18db7b2fb9da3c340663f31d89aa885dc0620b0a1c4", kill_on_drop: false }`
[INFO] [stdout] 92445de04170bcb41ab2e18db7b2fb9da3c340663f31d89aa885dc0620b0a1c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b743e9d2a6db444d8647c37959139b23a6760c109cee5407849c81e956baf9b1
[INFO] running `Command { std: "docker" "start" "-a" "b743e9d2a6db444d8647c37959139b23a6760c109cee5407849c81e956baf9b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling serde_derive v1.0.149
[INFO] [stderr]    Compiling serde v1.0.149
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 const-oid v0.9.1
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling untrusted v0.7.1
[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" "b743e9d2a6db444d8647c37959139b23a6760c109cee5407849c81e956baf9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b743e9d2a6db444d8647c37959139b23a6760c109cee5407849c81e956baf9b1", kill_on_drop: false }`
[INFO] [stdout] b743e9d2a6db444d8647c37959139b23a6760c109cee5407849c81e956baf9b1