[INFO] fetching crate bit_fiddler 0.1.0...
[INFO] checking bit_fiddler-0.1.0 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate bit_fiddler 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bit_fiddler 0.1.0 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bit_fiddler 0.1.0
[INFO] finished tweaking crates.io crate bit_fiddler 0.1.0
[INFO] tweaked toml for crates.io crate bit_fiddler 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate bit_fiddler 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e323fbba22d5683c6c554d346bcc7aa5bce7df0ced2bb40dbb7fceaf46056d53
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e323fbba22d5683c6c554d346bcc7aa5bce7df0ced2bb40dbb7fceaf46056d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e323fbba22d5683c6c554d346bcc7aa5bce7df0ced2bb40dbb7fceaf46056d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e323fbba22d5683c6c554d346bcc7aa5bce7df0ced2bb40dbb7fceaf46056d53", kill_on_drop: false }`
[INFO] [stdout] e323fbba22d5683c6c554d346bcc7aa5bce7df0ced2bb40dbb7fceaf46056d53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f56b08c8c2b90581a0f31e4e7e97c55196d031927936fb29f524699ea423152
[INFO] running `Command { std: "docker" "start" "-a" "5f56b08c8c2b90581a0f31e4e7e97c55196d031927936fb29f524699ea423152", kill_on_drop: false }`
[INFO] [stderr]     Checking bit_fiddler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Bitmap`, `check_bitmap_impl`
[INFO] [stdout]  --> src/bit_fiddle_macros.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{check_bitmap_impl, bitmap_trait::{Bitmap}};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitOrAssign`, `BitOr`
[INFO] [stdout]  --> src/bitmap_trait.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     BitOrAssign, BitOr
[INFO] [stdout]   |     ^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> src/bitmap_trait.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn check_bitmap_impl_by_value<T: Bitmap>(arg: T) {}
[INFO] [stdout]    |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bitmap`, `check_bitmap_impl`
[INFO] [stdout]  --> src/bit_fiddle_macros.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{check_bitmap_impl, bitmap_trait::{Bitmap}};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitOrAssign`, `BitOr`
[INFO] [stdout]  --> src/bitmap_trait.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     BitOrAssign, BitOr
[INFO] [stdout]   |     ^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> src/bitmap_trait.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn check_bitmap_impl_by_value<T: Bitmap>(arg: T) {}
[INFO] [stdout]    |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::*`
[INFO] [stdout]  --> src/bin/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `toggle_bmp`, `unset_bmp`
[INFO] [stdout]  --> src/bin/test.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     set_bmp, unset_bmp, toggle_bmp,
[INFO] [stdout]   |              ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::*`
[INFO] [stdout]  --> src/bin/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `toggle_bmp`, `unset_bmp`
[INFO] [stdout]  --> src/bin/test.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     set_bmp, unset_bmp, toggle_bmp,
[INFO] [stdout]   |              ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mark`
[INFO] [stdout]   --> src/bin/test.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn mark() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f56b08c8c2b90581a0f31e4e7e97c55196d031927936fb29f524699ea423152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f56b08c8c2b90581a0f31e4e7e97c55196d031927936fb29f524699ea423152", kill_on_drop: false }`
[INFO] [stdout] 5f56b08c8c2b90581a0f31e4e7e97c55196d031927936fb29f524699ea423152