[INFO] fetching crate dg_xch_pos 1.2.1...
[INFO] checking dg_xch_pos-1.2.1 against master#5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea for pr-124336
[INFO] extracting crate dg_xch_pos 1.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dg_xch_pos 1.2.1 on toolchain 5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dg_xch_pos 1.2.1
[INFO] finished tweaking crates.io crate dg_xch_pos 1.2.1
[INFO] tweaked toml for crates.io crate dg_xch_pos 1.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 236 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.21.0 (latest: v0.22.0)
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[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding dg_xch_core v1.2.1 (latest: v2.0.3)
[INFO] [stderr]       Adding dg_xch_macros v1.2.1 (latest: v2.0.3)
[INFO] [stderr]       Adding dg_xch_serialize v1.2.1 (latest: v2.0.3)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tls_codec v0.4.1
[INFO] [stderr]   Downloaded dg_xch_serialize v1.2.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6ad13524271be8f44daf26da418f5d853ba657063d9bac9c288e6f1430fc629
[INFO] running `Command { std: "docker" "start" "-a" "c6ad13524271be8f44daf26da418f5d853ba657063d9bac9c288e6f1430fc629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6ad13524271be8f44daf26da418f5d853ba657063d9bac9c288e6f1430fc629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ad13524271be8f44daf26da418f5d853ba657063d9bac9c288e6f1430fc629", kill_on_drop: false }`
[INFO] [stdout] c6ad13524271be8f44daf26da418f5d853ba657063d9bac9c288e6f1430fc629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+5557f8c9d08d7f3f680943dcf97b6d4a7eb13aea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a24e0514671c7c170157f9f59f7051f41b602bb3fdc4afceeeb56e94027041c5
[INFO] running `Command { std: "docker" "start" "-a" "a24e0514671c7c170157f9f59f7051f41b602bb3fdc4afceeeb56e94027041c5", kill_on_drop: false }`
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[INFO] [stderr]     Checking dg_xch_pos v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `FromMeta4` is never used
[INFO] [stdout]   --> src/plots/mod.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait FromMeta4 {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromMeta4` is never used
[INFO] [stdout]   --> src/plots/mod.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait FromMeta4 {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `criterion`
[INFO] [stdout]  --> benches/compression.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::Criterion;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `criterion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fetch_proof_for_challenge` found for struct `Arc<PlotReader<tokio::fs::File, DiskPlot<tokio::fs::File>>>` in the current scope
[INFO] [stdout]   --> benches/compression.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let _ = reader.fetch_proof_for_challenge(&challenge).await;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `fetch_proofs_for_challenge` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let _ = reader.fetch_proofs_for_challenge(&challenge).await;
[INFO] [stdout]    |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dg_xch_pos` (bench "compression") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "a24e0514671c7c170157f9f59f7051f41b602bb3fdc4afceeeb56e94027041c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24e0514671c7c170157f9f59f7051f41b602bb3fdc4afceeeb56e94027041c5", kill_on_drop: false }`
[INFO] [stdout] a24e0514671c7c170157f9f59f7051f41b602bb3fdc4afceeeb56e94027041c5
[ERROR] this task or one of its parent failed!
[ERROR] error sending request for url (https://crater.rust-lang.org/agent-api/record-progress): connection closed before message completed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.