[INFO] fetching crate cooklang-sync-server 0.1.6...
[INFO] checking cooklang-sync-server-0.1.6 against master#826b673412d2f579e7865b6f26bc9771c6d3b097 for pr-133397
[INFO] extracting crate cooklang-sync-server 0.1.6 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cooklang-sync-server 0.1.6 on toolchain 826b673412d2f579e7865b6f26bc9771c6d3b097
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cooklang-sync-server 0.1.6
[INFO] finished tweaking crates.io crate cooklang-sync-server 0.1.6
[INFO] tweaked toml for crates.io crate cooklang-sync-server 0.1.6 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cooklang-sync-server 0.1.6 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" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1a4c05640714097a34ca1c56063d407a0bb6d0140db8d15359f8b901e7f3708
[INFO] running `Command { std: "docker" "start" "-a" "c1a4c05640714097a34ca1c56063d407a0bb6d0140db8d15359f8b901e7f3708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1a4c05640714097a34ca1c56063d407a0bb6d0140db8d15359f8b901e7f3708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a4c05640714097a34ca1c56063d407a0bb6d0140db8d15359f8b901e7f3708", kill_on_drop: false }`
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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_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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c5085e2e1f1aab7bb4d7c9632c351cc308042540bfd3366c328813799f342a7
[INFO] running `Command { std: "docker" "start" "-a" "8c5085e2e1f1aab7bb4d7c9632c351cc308042540bfd3366c328813799f342a7", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `MultiChunkResponse` is never constructed
[INFO] [stdout]  --> src/chunks/response.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct MultiChunkResponse<'a> {
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/chunks/response.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MultiChunkResponse<'_> {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(chunk_ids: Vec<ChunkId<'_>>) -> MultiChunkResponse<'_> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/chunks/mod.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 | /             file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout] 61 | |                 std::fs::remove_file(&full_path).ok();
[INFO] [stdout] 62 | |             });
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let _ = file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/chunks/mod.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 | /             file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout] 106 | |                 std::fs::remove_file(&full_path).ok();
[INFO] [stdout] 107 | |             });
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let _ = file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MultiChunkResponse` is never constructed
[INFO] [stdout]  --> src/chunks/response.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct MultiChunkResponse<'a> {
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/chunks/response.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MultiChunkResponse<'_> {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(chunk_ids: Vec<ChunkId<'_>>) -> MultiChunkResponse<'_> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/chunks/mod.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 | /             file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout] 61 | |                 std::fs::remove_file(&full_path).ok();
[INFO] [stdout] 62 | |             });
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let _ = file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/chunks/mod.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 | /             file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout] 106 | |                 std::fs::remove_file(&full_path).ok();
[INFO] [stdout] 107 | |             });
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let _ = file.write_all(&chunk).await.map_err(|_| {
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.66s
[INFO] running `Command { std: "docker" "inspect" "8c5085e2e1f1aab7bb4d7c9632c351cc308042540bfd3366c328813799f342a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5085e2e1f1aab7bb4d7c9632c351cc308042540bfd3366c328813799f342a7", kill_on_drop: false }`
[INFO] [stdout] 8c5085e2e1f1aab7bb4d7c9632c351cc308042540bfd3366c328813799f342a7