[INFO] cloning repository https://github.com/mingmamma/some-rust-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingmamma/some-rust-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingmamma%2Fsome-rust-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingmamma%2Fsome-rust-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0116b9a37cd7cdcfcbd289778794b5899980e6eb
[INFO] checking mingmamma/some-rust-examples against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingmamma%2Fsome-rust-examples" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mingmamma/some-rust-examples on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mingmamma/some-rust-examples
[INFO] finished tweaking git repo https://github.com/mingmamma/some-rust-examples
[INFO] tweaked toml for git repo https://github.com/mingmamma/some-rust-examples written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mingmamma/some-rust-examples 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c047c8fa79f56437ae02d43fb33c6a9ec02301aec45bbaeb6f5e0541df938f94
[INFO] running `Command { std: "docker" "start" "-a" "c047c8fa79f56437ae02d43fb33c6a9ec02301aec45bbaeb6f5e0541df938f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c047c8fa79f56437ae02d43fb33c6a9ec02301aec45bbaeb6f5e0541df938f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c047c8fa79f56437ae02d43fb33c6a9ec02301aec45bbaeb6f5e0541df938f94", kill_on_drop: false }`
[INFO] [stdout] c047c8fa79f56437ae02d43fb33c6a9ec02301aec45bbaeb6f5e0541df938f94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50f9aca42060a5696c6220e122a8dd53ee33955900fb2a64cf8e90e9d18f097f
[INFO] running `Command { std: "docker" "start" "-a" "50f9aca42060a5696c6220e122a8dd53ee33955900fb2a64cf8e90e9d18f097f", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.5.0
[INFO] [stderr]     Checking some-rust-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/proptest.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn string_cat_length(a in ".*", b in ".*") {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/proptest.rs:10:37
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn string_cat_length(a in ".*", b in ".*") {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.60s
[INFO] running `Command { std: "docker" "inspect" "50f9aca42060a5696c6220e122a8dd53ee33955900fb2a64cf8e90e9d18f097f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f9aca42060a5696c6220e122a8dd53ee33955900fb2a64cf8e90e9d18f097f", kill_on_drop: false }`
[INFO] [stdout] 50f9aca42060a5696c6220e122a8dd53ee33955900fb2a64cf8e90e9d18f097f
[INFO] checking mingmamma/some-rust-examples against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingmamma%2Fsome-rust-examples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mingmamma/some-rust-examples on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mingmamma/some-rust-examples
[INFO] finished tweaking git repo https://github.com/mingmamma/some-rust-examples
[INFO] tweaked toml for git repo https://github.com/mingmamma/some-rust-examples written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mingmamma/some-rust-examples 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf73435568f4f3805327018afe44d55e0a267ed0aa9a385ac2b15d60198b3a9b
[INFO] running `Command { std: "docker" "start" "-a" "cf73435568f4f3805327018afe44d55e0a267ed0aa9a385ac2b15d60198b3a9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf73435568f4f3805327018afe44d55e0a267ed0aa9a385ac2b15d60198b3a9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf73435568f4f3805327018afe44d55e0a267ed0aa9a385ac2b15d60198b3a9b", kill_on_drop: false }`
[INFO] [stdout] cf73435568f4f3805327018afe44d55e0a267ed0aa9a385ac2b15d60198b3a9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ae10f2b5b1e50f34f2657517d34b392f261216f9b96b491d683b0e0afbe64a6
[INFO] running `Command { std: "docker" "start" "-a" "7ae10f2b5b1e50f34f2657517d34b392f261216f9b96b491d683b0e0afbe64a6", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking proptest v1.5.0
[INFO] [stderr]     Checking some-rust-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/proptest.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn string_cat_length(a in ".*", b in ".*") {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/proptest.rs:10:37
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn string_cat_length(a in ".*", b in ".*") {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.61s
[INFO] running `Command { std: "docker" "inspect" "7ae10f2b5b1e50f34f2657517d34b392f261216f9b96b491d683b0e0afbe64a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae10f2b5b1e50f34f2657517d34b392f261216f9b96b491d683b0e0afbe64a6", kill_on_drop: false }`
[INFO] [stdout] 7ae10f2b5b1e50f34f2657517d34b392f261216f9b96b491d683b0e0afbe64a6