[INFO] fetching crate bigbed 0.2.0...
[INFO] checking bigbed-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate bigbed 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate bigbed 0.2.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bigbed 0.2.0
[INFO] finished tweaking crates.io crate bigbed 0.2.0
[INFO] tweaked toml for crates.io crate bigbed 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate bigbed 0.2.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8b4374acfcca726e415fbab8a567a2cc57fe840295cfbc78ca65d703ca5e10c
[INFO] running `Command { std: "docker" "start" "-a" "f8b4374acfcca726e415fbab8a567a2cc57fe840295cfbc78ca65d703ca5e10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b4374acfcca726e415fbab8a567a2cc57fe840295cfbc78ca65d703ca5e10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b4374acfcca726e415fbab8a567a2cc57fe840295cfbc78ca65d703ca5e10c", kill_on_drop: false }`
[INFO] [stdout] f8b4374acfcca726e415fbab8a567a2cc57fe840295cfbc78ca65d703ca5e10c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c5ae82a504bc1a3d0ddc58b5d78290a9c1c8dec3f79fa2b6fc3682df04c09d0
[INFO] running `Command { std: "docker" "start" "-a" "3c5ae82a504bc1a3d0ddc58b5d78290a9c1c8dec3f79fa2b6fc3682df04c09d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking bigbed v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `block_size` and `item_count` are never read
[INFO] [stdout]    --> src/lib.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct BPlusTreeFile { 
[INFO] [stdout]     |        ------------- fields in this struct
[INFO] [stdout] 119 |     big_endian: bool,
[INFO] [stdout] 120 |     block_size: u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     item_count: u64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BPlusTreeFile` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/lib.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 288 | struct CIRTreeFile {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 289 |     big_endian: bool,
[INFO] [stdout] 290 |     block_size: u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 291 |     item_count: u64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 292 |     start_chrom_ix: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 293 |     start_base: u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 294 |     end_chrom_ix: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 295 |     end_base: u32,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 296 |     file_size: u64,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 297 |     items_per_slot: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CIRTreeFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block_size` and `item_count` are never read
[INFO] [stdout]    --> src/lib.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct BPlusTreeFile { 
[INFO] [stdout]     |        ------------- fields in this struct
[INFO] [stdout] 119 |     big_endian: bool,
[INFO] [stdout] 120 |     block_size: u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     item_count: u64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BPlusTreeFile` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/lib.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 288 | struct CIRTreeFile {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 289 |     big_endian: bool,
[INFO] [stdout] 290 |     block_size: u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 291 |     item_count: u64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 292 |     start_chrom_ix: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 293 |     start_base: u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 294 |     end_chrom_ix: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 295 |     end_base: u32,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 296 |     file_size: u64,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 297 |     items_per_slot: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CIRTreeFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "3c5ae82a504bc1a3d0ddc58b5d78290a9c1c8dec3f79fa2b6fc3682df04c09d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c5ae82a504bc1a3d0ddc58b5d78290a9c1c8dec3f79fa2b6fc3682df04c09d0", kill_on_drop: false }`
[INFO] [stdout] 3c5ae82a504bc1a3d0ddc58b5d78290a9c1c8dec3f79fa2b6fc3682df04c09d0