[INFO] fetching crate signal-hook 0.3.17...
[INFO] checking signal-hook-0.3.17 against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095
[INFO] extracting crate signal-hook 0.3.17 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate signal-hook 0.3.17 on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signal-hook 0.3.17
[INFO] finished tweaking crates.io crate signal-hook 0.3.17
[INFO] tweaked toml for crates.io crate signal-hook 0.3.17 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate signal-hook 0.3.17 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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Updating crates.io index
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] warning: spurious network error (3 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/serial_test_derive/0.7.0/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (3 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/serial_test/0.7.0/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (3 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/rustversion/1.0.6/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (3 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/smallvec/1.8.0/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (2 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/serial_test/0.7.0/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (2 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/rustversion/1.0.6/download` (99.84.160.69), got 503
[INFO] [stderr] body:
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[INFO] [stderr] Application Error
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[INFO] [stderr] warning: spurious network error (2 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/smallvec/1.8.0/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (1 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/rustversion/1.0.6/download` (99.84.160.69), got 503
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[INFO] [stderr] warning: spurious network error (1 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/serial_test/0.7.0/download` (99.84.160.69), got 503
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[INFO] [stderr] Downloaded smallvec v1.8.0
[INFO] [stderr] Downloaded serial_test_derive v0.7.0
[INFO] [stderr] error: failed to download from `https://crates.io/api/v1/crates/rustversion/1.0.6/download`
[INFO] [stderr]
[INFO] [stderr] Caused by:
[INFO] [stderr] failed to get successful HTTP response from `https://crates.io/api/v1/crates/rustversion/1.0.6/download` (99.84.160.69), got 503
[INFO] [stderr] debug headers:
[INFO] [stderr] x-cache: Error from cloudfront
[INFO] [stderr] x-amz-cf-pop: ORD52-C2
[INFO] [stderr] x-amz-cf-id: cyqOKfQcVsdxR09QnCVDKZ-uCYlppwXEMXq1A60tp9xs5XgULYlWxg==
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[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.