[INFO] cloning repository https://github.com/guilherme/rust-mach-o-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guilherme/rust-mach-o-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilherme%2Frust-mach-o-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilherme%2Frust-mach-o-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dad0dfc8adc96d7029f1f52656c552513481dc22
[INFO] checking guilherme/rust-mach-o-parser against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguilherme%2Frust-mach-o-parser" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guilherme/rust-mach-o-parser 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 git repo https://github.com/guilherme/rust-mach-o-parser
[INFO] finished tweaking git repo https://github.com/guilherme/rust-mach-o-parser
[INFO] tweaked toml for git repo https://github.com/guilherme/rust-mach-o-parser written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/guilherme/rust-mach-o-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6e6d8f2c9544e966450e3bcac8a676838ca97dc4743fe7b9081e650ce9a25878
[INFO] running `Command { std: "docker" "start" "-a" "6e6d8f2c9544e966450e3bcac8a676838ca97dc4743fe7b9081e650ce9a25878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e6d8f2c9544e966450e3bcac8a676838ca97dc4743fe7b9081e650ce9a25878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6d8f2c9544e966450e3bcac8a676838ca97dc4743fe7b9081e650ce9a25878", kill_on_drop: false }`
[INFO] [stdout] 6e6d8f2c9544e966450e3bcac8a676838ca97dc4743fe7b9081e650ce9a25878
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a625d15efd39579f5eb461461cd971d4eaf37455b890c594e3c969a2947d8296
[INFO] running `Command { std: "docker" "start" "-a" "a625d15efd39579f5eb461461cd971d4eaf37455b890c594e3c969a2947d8296", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking mach-o-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/main.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dump_mach_header(f: &mut File, is_64: bool, should_swap: bool) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_64`
[INFO] [stdout]   --> src/main.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dump_mach_header(f: &mut File, is_64: bool, should_swap: bool) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_is_64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `should_swap`
[INFO] [stdout]   --> src/main.rs:39:48
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dump_mach_header(f: &mut File, is_64: bool, should_swap: bool) {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_should_swap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/main.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dump_mach_header(f: &mut File, is_64: bool, should_swap: bool) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_64`
[INFO] [stdout]   --> src/main.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dump_mach_header(f: &mut File, is_64: bool, should_swap: bool) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_is_64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `should_swap`
[INFO] [stdout]   --> src/main.rs:39:48
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dump_mach_header(f: &mut File, is_64: bool, should_swap: bool) {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_should_swap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MH_MAGIC`
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const MH_MAGIC: u32 = 0xfeedface;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MH_MAGIC`
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const MH_MAGIC: u32 = 0xfeedface;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "a625d15efd39579f5eb461461cd971d4eaf37455b890c594e3c969a2947d8296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a625d15efd39579f5eb461461cd971d4eaf37455b890c594e3c969a2947d8296", kill_on_drop: false }`
[INFO] [stdout] a625d15efd39579f5eb461461cd971d4eaf37455b890c594e3c969a2947d8296