[INFO] fetching crate cliff 0.3.2...
[INFO] checking cliff-0.3.2 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate cliff 0.3.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate cliff 0.3.2 on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cliff 0.3.2
[INFO] finished tweaking crates.io crate cliff 0.3.2
[INFO] tweaked toml for crates.io crate cliff 0.3.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6aed38f33a3d1de714c8ef57e354704d0d2e501d728701b9f105eec27d23b05
[INFO] running `Command { std: "docker" "start" "-a" "e6aed38f33a3d1de714c8ef57e354704d0d2e501d728701b9f105eec27d23b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6aed38f33a3d1de714c8ef57e354704d0d2e501d728701b9f105eec27d23b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6aed38f33a3d1de714c8ef57e354704d0d2e501d728701b9f105eec27d23b05", kill_on_drop: false }`
[INFO] [stdout] e6aed38f33a3d1de714c8ef57e354704d0d2e501d728701b9f105eec27d23b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb1f35ec92de31b37298936a44a53c4857bea36184a00537fa8d070808e6eb19
[INFO] running `Command { std: "docker" "start" "-a" "bb1f35ec92de31b37298936a44a53c4857bea36184a00537fa8d070808e6eb19", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cliff v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `start` is never read
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ExponentialCliffSearcher {
[INFO] [stdout]   |            ------------------------ field in this struct
[INFO] [stdout] 8 |     max_in: core::ops::Range<usize>,
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ExponentialCliffSearcher` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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: field `start` is never read
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ExponentialCliffSearcher {
[INFO] [stdout]   |            ------------------------ field in this struct
[INFO] [stdout] 8 |     max_in: core::ops::Range<usize>,
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ExponentialCliffSearcher` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "bb1f35ec92de31b37298936a44a53c4857bea36184a00537fa8d070808e6eb19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb1f35ec92de31b37298936a44a53c4857bea36184a00537fa8d070808e6eb19", kill_on_drop: false }`
[INFO] [stdout] bb1f35ec92de31b37298936a44a53c4857bea36184a00537fa8d070808e6eb19
