[INFO] cloning repository https://github.com/sebasgarcep/kalman-filter-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sebasgarcep/kalman-filter-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebasgarcep%2Fkalman-filter-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebasgarcep%2Fkalman-filter-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 376413893fb37699552e9820df1ad74b3e872bf9
[INFO] checking sebasgarcep/kalman-filter-tutorial against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119820
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebasgarcep%2Fkalman-filter-tutorial" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebasgarcep/kalman-filter-tutorial on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebasgarcep/kalman-filter-tutorial
[INFO] finished tweaking git repo https://github.com/sebasgarcep/kalman-filter-tutorial
[INFO] tweaked toml for git repo https://github.com/sebasgarcep/kalman-filter-tutorial written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sebasgarcep/kalman-filter-tutorial 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" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[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/simba/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/nalgebra/0.30.0/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/tagger/3.3.2/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/poloto/3.11.1/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/wide/0.7.3/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/tagger/3.3.2/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/nalgebra/0.30.0/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/poloto/3.11.1/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/wide/0.7.3/download` (99.84.160.69), got 503
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[INFO] [stderr] Downloaded simba v0.7.0
[INFO] [stderr] warning: spurious network error (1 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/tagger/3.3.2/download` (99.84.160.69), got 503
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[INFO] [stderr] Downloaded nalgebra v0.30.0
[INFO] [stderr] warning: spurious network error (1 tries remaining): failed to get successful HTTP response from `https://crates.io/api/v1/crates/poloto/3.11.1/download` (99.84.160.69), got 503
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[INFO] [stderr] Downloaded wide v0.7.3
[INFO] [stderr] error: failed to download from `https://crates.io/api/v1/crates/poloto/3.11.1/download`
[INFO] [stderr]
[INFO] [stderr] Caused by:
[INFO] [stderr] failed to get successful HTTP response from `https://crates.io/api/v1/crates/poloto/3.11.1/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: JrjZGMwKgb3AH_kfgtP90kAiUM4JPc0dq08jrftXSprZNCl1bSG25g==
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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.