[INFO] fetching crate stream-vbyte 0.3.2...
[INFO] checking stream-vbyte-0.3.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate stream-vbyte 0.3.2 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate stream-vbyte 0.3.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stream-vbyte 0.3.2
[INFO] finished tweaking crates.io crate stream-vbyte 0.3.2
[INFO] tweaked toml for crates.io crate stream-vbyte 0.3.2 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44b8e837f520791e104e1f5ac5f5e318a769ce50f2c9e368e7ecbb4fa8b8ba14
[INFO] running `Command { std: "docker" "start" "-a" "44b8e837f520791e104e1f5ac5f5e318a769ce50f2c9e368e7ecbb4fa8b8ba14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44b8e837f520791e104e1f5ac5f5e318a769ce50f2c9e368e7ecbb4fa8b8ba14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b8e837f520791e104e1f5ac5f5e318a769ce50f2c9e368e7ecbb4fa8b8ba14", kill_on_drop: false }`
[INFO] [stdout] 44b8e837f520791e104e1f5ac5f5e318a769ce50f2c9e368e7ecbb4fa8b8ba14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 447bcac81438838e72eee71f37022f28ae2aee91e61a305347b1949a8caeed19
[INFO] running `Command { std: "docker" "start" "-a" "447bcac81438838e72eee71f37022f28ae2aee91e61a305347b1949a8caeed19", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking stream-vbyte v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/lib.rs:317:14
[INFO] [stdout]     |
[INFO] [stdout] 317 |         .map({ |&b| tables::DECODE_LENGTH_PER_QUAD_TABLE[b as usize] as usize })
[INFO] [stdout]     |              ^^                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 317 -         .map({ |&b| tables::DECODE_LENGTH_PER_QUAD_TABLE[b as usize] as usize })
[INFO] [stdout] 317 +         .map(|&b| tables::DECODE_LENGTH_PER_QUAD_TABLE[b as usize] as usize)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:307:5
[INFO] [stdout]     |
[INFO] [stdout] 307 |     &buf[0..len].copy_from_slice(&input[0..len]);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 307 |     let _ = &buf[0..len].copy_from_slice(&input[0..len]);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> tests/cursor.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         'dec1: for initial_decode_len in 4..(count + 1) {
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/lib.rs:317:14
[INFO] [stdout]     |
[INFO] [stdout] 317 |         .map({ |&b| tables::DECODE_LENGTH_PER_QUAD_TABLE[b as usize] as usize })
[INFO] [stdout]     |              ^^                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 317 -         .map({ |&b| tables::DECODE_LENGTH_PER_QUAD_TABLE[b as usize] as usize })
[INFO] [stdout] 317 +         .map(|&b| tables::DECODE_LENGTH_PER_QUAD_TABLE[b as usize] as usize)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:307:5
[INFO] [stdout]     |
[INFO] [stdout] 307 |     &buf[0..len].copy_from_slice(&input[0..len]);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 307 |     let _ = &buf[0..len].copy_from_slice(&input[0..len]);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.10s
[INFO] running `Command { std: "docker" "inspect" "447bcac81438838e72eee71f37022f28ae2aee91e61a305347b1949a8caeed19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447bcac81438838e72eee71f37022f28ae2aee91e61a305347b1949a8caeed19", kill_on_drop: false }`
[INFO] [stdout] 447bcac81438838e72eee71f37022f28ae2aee91e61a305347b1949a8caeed19