[INFO] fetching crate array-util 1.0.2...
[INFO] checking array-util-1.0.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate array-util 1.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate array-util 1.0.2
[INFO] finished tweaking crates.io crate array-util 1.0.2
[INFO] tweaked toml for crates.io crate array-util 1.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate array-util 1.0.2 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8100d099b4307826ff156f42a0d5c2b6da657c9420fef321d343aa027e1ebd57
[INFO] running `Command { std: "docker" "start" "-a" "8100d099b4307826ff156f42a0d5c2b6da657c9420fef321d343aa027e1ebd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8100d099b4307826ff156f42a0d5c2b6da657c9420fef321d343aa027e1ebd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8100d099b4307826ff156f42a0d5c2b6da657c9420fef321d343aa027e1ebd57", kill_on_drop: false }`
[INFO] [stdout] 8100d099b4307826ff156f42a0d5c2b6da657c9420fef321d343aa027e1ebd57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 531e1ac8b76e772a4eebef04abd3d616880eaa47af7f14d9d80ca0e40953df43
[INFO] running `Command { std: "docker" "start" "-a" "531e1ac8b76e772a4eebef04abd3d616880eaa47af7f14d9d80ca0e40953df43", kill_on_drop: false }`
[INFO] [stderr]     Checking array-util v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1144:5
[INFO] [stdout]      |
[INFO] [stdout] 1144 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1178:5
[INFO] [stdout]      |
[INFO] [stdout] 1178 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1209:5
[INFO] [stdout]      |
[INFO] [stdout] 1209 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1245:5
[INFO] [stdout]      |
[INFO] [stdout] 1245 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1270:5
[INFO] [stdout]      |
[INFO] [stdout] 1270 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1301:5
[INFO] [stdout]      |
[INFO] [stdout] 1301 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1144:5
[INFO] [stdout]      |
[INFO] [stdout] 1144 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1178:5
[INFO] [stdout]      |
[INFO] [stdout] 1178 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1209:5
[INFO] [stdout]      |
[INFO] [stdout] 1209 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1245:5
[INFO] [stdout]      |
[INFO] [stdout] 1245 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1270:5
[INFO] [stdout]      |
[INFO] [stdout] 1270 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]     --> src/lib.rs:1301:5
[INFO] [stdout]      |
[INFO] [stdout] 1301 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "531e1ac8b76e772a4eebef04abd3d616880eaa47af7f14d9d80ca0e40953df43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531e1ac8b76e772a4eebef04abd3d616880eaa47af7f14d9d80ca0e40953df43", kill_on_drop: false }`
[INFO] [stdout] 531e1ac8b76e772a4eebef04abd3d616880eaa47af7f14d9d80ca0e40953df43