[INFO] fetching crate bigbed 0.2.0...
[INFO] checking bigbed-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate bigbed 0.2.0 into /workspace/builds/worker-3-tc2/source
[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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bigbed 0.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1131498414b1e21913e250e92e17f5b53cca2486fbc777d281cae1a2e4b6dd63
[INFO] running `Command { std: "docker" "start" "-a" "1131498414b1e21913e250e92e17f5b53cca2486fbc777d281cae1a2e4b6dd63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1131498414b1e21913e250e92e17f5b53cca2486fbc777d281cae1a2e4b6dd63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1131498414b1e21913e250e92e17f5b53cca2486fbc777d281cae1a2e4b6dd63", kill_on_drop: false }`
[INFO] [stdout] 1131498414b1e21913e250e92e17f5b53cca2486fbc777d281cae1a2e4b6dd63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cf56120f3682e7577759bfa65951445a647a656a0a4d991f3f0ddf74ecdbd3a
[INFO] running `Command { std: "docker" "start" "-a" "1cf56120f3682e7577759bfa65951445a647a656a0a4d991f3f0ddf74ecdbd3a", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) 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] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:167:51
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 let mut valbuf: Vec<u8> = vec![0; self.val_size.try_into().unwrap()];
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:169:55
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mut keybuf: Vec<u8> = vec![0; self.key_size.try_into().unwrap()];
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:240:51
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let mut valbuf: Vec<u8> = vec![0; self.val_size.try_into().unwrap()];
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:242:55
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     let mut keybuf: Vec<u8> = vec![0; self.key_size.try_into().unwrap()];
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bigbed` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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)]` (part of `#[warn(unused)]`) 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] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:167:51
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 let mut valbuf: Vec<u8> = vec![0; self.val_size.try_into().unwrap()];
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:169:55
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mut keybuf: Vec<u8> = vec![0; self.key_size.try_into().unwrap()];
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:240:51
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let mut valbuf: Vec<u8> = vec![0; self.val_size.try_into().unwrap()];
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/lib.rs:242:55
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     let mut keybuf: Vec<u8> = vec![0; self.key_size.try_into().unwrap()];
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bigbed` (lib test) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1cf56120f3682e7577759bfa65951445a647a656a0a4d991f3f0ddf74ecdbd3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cf56120f3682e7577759bfa65951445a647a656a0a4d991f3f0ddf74ecdbd3a", kill_on_drop: false }`
[INFO] [stdout] 1cf56120f3682e7577759bfa65951445a647a656a0a4d991f3f0ddf74ecdbd3a
