[INFO] cloning repository https://github.com/segfo/dirwalker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/segfo/dirwalker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsegfo%2Fdirwalker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsegfo%2Fdirwalker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24bd0713bd6c0087e2d47c94ae4b1b9a014eb1f4
[INFO] testing segfo/dirwalker against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsegfo%2Fdirwalker" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/segfo/dirwalker on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/segfo/dirwalker
[INFO] finished tweaking git repo https://github.com/segfo/dirwalker
[INFO] tweaked toml for git repo https://github.com/segfo/dirwalker written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/segfo/dirwalker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", 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] d06a7a8d005cb13c9bdf2da38c1e91c9a7ea7c02fd587b8137ff205c5e0d1edb
[INFO] running `Command { std: "docker" "start" "-a" "d06a7a8d005cb13c9bdf2da38c1e91c9a7ea7c02fd587b8137ff205c5e0d1edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d06a7a8d005cb13c9bdf2da38c1e91c9a7ea7c02fd587b8137ff205c5e0d1edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d06a7a8d005cb13c9bdf2da38c1e91c9a7ea7c02fd587b8137ff205c5e0d1edb", kill_on_drop: false }`
[INFO] [stdout] d06a7a8d005cb13c9bdf2da38c1e91c9a7ea7c02fd587b8137ff205c5e0d1edb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--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] 5da237e218f084b877589bca1bba565c40e8271fb3c6d8094a799d53643e7b14
[INFO] running `Command { std: "docker" "start" "-a" "5da237e218f084b877589bca1bba565c40e8271fb3c6d8094a799d53643e7b14", kill_on_drop: false }`
[INFO] [stderr]    Compiling dirwalker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `walker`
[INFO] [stdout]   --> src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_walker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entry`
[INFO] [stdout]   --> src/main.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout]    |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_entry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/main.rs:57:52
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_dir`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     root_dir:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_dir_mode`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     root_dir_mode:u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "5da237e218f084b877589bca1bba565c40e8271fb3c6d8094a799d53643e7b14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5da237e218f084b877589bca1bba565c40e8271fb3c6d8094a799d53643e7b14", kill_on_drop: false }`
[INFO] [stdout] 5da237e218f084b877589bca1bba565c40e8271fb3c6d8094a799d53643e7b14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--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] 0a482332281fc44ee4aecff24062b87b144005f341c57ea2cfcc0eddc6006dbc
[INFO] running `Command { std: "docker" "start" "-a" "0a482332281fc44ee4aecff24062b87b144005f341c57ea2cfcc0eddc6006dbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling dirwalker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `walker`
[INFO] [stdout]   --> src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_walker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entry`
[INFO] [stdout]   --> src/main.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout]    |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_entry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/main.rs:57:52
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_dir`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     root_dir:String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_dir_mode`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     root_dir_mode:u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "0a482332281fc44ee4aecff24062b87b144005f341c57ea2cfcc0eddc6006dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a482332281fc44ee4aecff24062b87b144005f341c57ea2cfcc0eddc6006dbc", kill_on_drop: false }`
[INFO] [stdout] 0a482332281fc44ee4aecff24062b87b144005f341c57ea2cfcc0eddc6006dbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ff7f47608b392b64919a846e4588ba3cd222378cc5f2fb56c15576bf3e26617a
[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" "ff7f47608b392b64919a846e4588ba3cd222378cc5f2fb56c15576bf3e26617a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `walker`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:57:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_walker`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entry`
[INFO] [stderr]   --> src/main.rs:57:37
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stderr]    |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_entry`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]   --> src/main.rs:57:52
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn callback(walker:&DirectoryWalker,entry:DirEntry,parent:&DirectoryInfo) -> io::Result<()> {
[INFO] [stderr]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `root_dir`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     root_dir:String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `root_dir_mode`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     root_dir_mode:u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dirwalker` (bin "dirwalker" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dirwalker-b19cad2015456737)
[INFO] running `Command { std: "docker" "inspect" "ff7f47608b392b64919a846e4588ba3cd222378cc5f2fb56c15576bf3e26617a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff7f47608b392b64919a846e4588ba3cd222378cc5f2fb56c15576bf3e26617a", kill_on_drop: false }`
[INFO] [stdout] ff7f47608b392b64919a846e4588ba3cd222378cc5f2fb56c15576bf3e26617a