[INFO] fetching crate owned-read 0.4.1...
[INFO] checking owned-read-0.4.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate owned-read 0.4.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate owned-read 0.4.1
[INFO] finished tweaking crates.io crate owned-read 0.4.1
[INFO] tweaked toml for crates.io crate owned-read 0.4.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate owned-read 0.4.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcd27e2dfe20b9735b9a95709824c06e893f066fe855e13abaa392e53785d3a0
[INFO] running `Command { std: "docker" "start" "-a" "bcd27e2dfe20b9735b9a95709824c06e893f066fe855e13abaa392e53785d3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcd27e2dfe20b9735b9a95709824c06e893f066fe855e13abaa392e53785d3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcd27e2dfe20b9735b9a95709824c06e893f066fe855e13abaa392e53785d3a0", kill_on_drop: false }`
[INFO] [stdout] bcd27e2dfe20b9735b9a95709824c06e893f066fe855e13abaa392e53785d3a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce5553134550ea85b01b46e4131068064c693c04bccb8106f6add1a99e265a5f
[INFO] running `Command { std: "docker" "start" "-a" "ce5553134550ea85b01b46e4131068064c693c04bccb8106f6add1a99e265a5f", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking owned-read v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `box_stable_deref` is never read
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct OwnedRead {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 9  |     data: &'static [u8],
[INFO] [stdout] 10 |     box_stable_deref: Arc<dyn Deref<Target = [u8]>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OwnedRead` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `box_stable_deref` is never read
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct OwnedRead {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 9  |     data: &'static [u8],
[INFO] [stdout] 10 |     box_stable_deref: Arc<dyn Deref<Target = [u8]>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OwnedRead` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "ce5553134550ea85b01b46e4131068064c693c04bccb8106f6add1a99e265a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5553134550ea85b01b46e4131068064c693c04bccb8106f6add1a99e265a5f", kill_on_drop: false }`
[INFO] [stdout] ce5553134550ea85b01b46e4131068064c693c04bccb8106f6add1a99e265a5f