[INFO] fetching crate copse 0.4.1...
[INFO] checking copse-0.4.1 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate copse 0.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate copse 0.4.1 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate copse 0.4.1
[INFO] finished tweaking crates.io crate copse 0.4.1
[INFO] tweaked toml for crates.io crate copse 0.4.1 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" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4734a2457d8b505f34c9b62f3fd2b95373607941704f11bb7e17649cb7bab5c
[INFO] running `Command { std: "docker" "start" "-a" "a4734a2457d8b505f34c9b62f3fd2b95373607941704f11bb7e17649cb7bab5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4734a2457d8b505f34c9b62f3fd2b95373607941704f11bb7e17649cb7bab5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4734a2457d8b505f34c9b62f3fd2b95373607941704f11bb7e17649cb7bab5c", kill_on_drop: false }`
[INFO] [stdout] a4734a2457d8b505f34c9b62f3fd2b95373607941704f11bb7e17649cb7bab5c
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6184fa3e3d95a497a5c5bd0c4bcc525083c5c9841f18ff8a9c4b975ef0cd1bf
[INFO] running `Command { std: "docker" "start" "-a" "b6184fa3e3d95a497a5c5bd0c4bcc525083c5c9841f18ff8a9c4b975ef0cd1bf", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking copse v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/liballoc/collections/btree/set/tests.rs:528:30
[INFO] [stdout]     |
[INFO] [stdout] 528 |     struct Foo(&'static str, i32);
[INFO] [stdout]     |            ---               ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 528 |     struct Foo(&'static str, ());
[INFO] [stdout]     |                              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "b6184fa3e3d95a497a5c5bd0c4bcc525083c5c9841f18ff8a9c4b975ef0cd1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6184fa3e3d95a497a5c5bd0c4bcc525083c5c9841f18ff8a9c4b975ef0cd1bf", kill_on_drop: false }`
[INFO] [stdout] b6184fa3e3d95a497a5c5bd0c4bcc525083c5c9841f18ff8a9c4b975ef0cd1bf
