[INFO] cloning repository https://github.com/edwardwohaijun/unwrap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edwardwohaijun/unwrap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwardwohaijun%2Funwrap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwardwohaijun%2Funwrap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea51b3fb4617fefb875e90081c9e1577228a8e1a
[INFO] testing edwardwohaijun/unwrap against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwardwohaijun%2Funwrap" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/edwardwohaijun/unwrap on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/edwardwohaijun/unwrap
[INFO] finished tweaking git repo https://github.com/edwardwohaijun/unwrap
[INFO] tweaked toml for git repo https://github.com/edwardwohaijun/unwrap written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/edwardwohaijun/unwrap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 612dbddf1189294855d15613932316f888b399e2327ee56c45c2b27f8c1892f5
[INFO] running `Command { std: "docker" "start" "-a" "612dbddf1189294855d15613932316f888b399e2327ee56c45c2b27f8c1892f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "612dbddf1189294855d15613932316f888b399e2327ee56c45c2b27f8c1892f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612dbddf1189294855d15613932316f888b399e2327ee56c45c2b27f8c1892f5", kill_on_drop: false }`
[INFO] [stdout] 612dbddf1189294855d15613932316f888b399e2327ee56c45c2b27f8c1892f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c81f44890fc160a3f30873ba099307a50c08441eb68357545a871b0039a2f06
[INFO] running `Command { std: "docker" "start" "-a" "6c81f44890fc160a3f30873ba099307a50c08441eb68357545a871b0039a2f06", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling bitflags v0.6.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling smallvec v0.6.8
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling unrar_sys v0.2.0
[INFO] [stderr]    Compiling rust-lzma v0.4.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling libflate v0.1.19
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling filetime v0.2.4
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling tar v0.4.20
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling flate2 v1.0.6
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling tree_magic v0.2.1
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling zip v0.5.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling unrar v0.4.3
[INFO] [stderr]    Compiling unwrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `create_dir`
[INFO] [stdout]    --> src/main.rs:251:4
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn create_dir(path: &str) -> io::Result<String> { // after moving this fn into a module, make this one private
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `path_digi_suffix` should have an upper case name
[INFO] [stdout]   --> src/main.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 |     static ref path_digi_suffix: Regex = Regex::new(r"_\((\d+)\)$").unwrap(); // to match a directory name: this_is_a_directory_(123)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `PATH_DIGI_SUFFIX`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.34s
[INFO] running `Command { std: "docker" "inspect" "6c81f44890fc160a3f30873ba099307a50c08441eb68357545a871b0039a2f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c81f44890fc160a3f30873ba099307a50c08441eb68357545a871b0039a2f06", kill_on_drop: false }`
[INFO] [stdout] 6c81f44890fc160a3f30873ba099307a50c08441eb68357545a871b0039a2f06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 519d4f7d19be6a5f10fdfc374d65b81b9743bf1c8809b1f95063fadeb2b9ca2c
[INFO] running `Command { std: "docker" "start" "-a" "519d4f7d19be6a5f10fdfc374d65b81b9743bf1c8809b1f95063fadeb2b9ca2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unwrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `create_dir`
[INFO] [stdout]    --> src/main.rs:251:4
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn create_dir(path: &str) -> io::Result<String> { // after moving this fn into a module, make this one private
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `path_digi_suffix` should have an upper case name
[INFO] [stdout]   --> src/main.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 |     static ref path_digi_suffix: Regex = Regex::new(r"_\((\d+)\)$").unwrap(); // to match a directory name: this_is_a_directory_(123)
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `PATH_DIGI_SUFFIX`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/unwrap-90e7c6f38104f5b4)
[INFO] running `Command { std: "docker" "inspect" "519d4f7d19be6a5f10fdfc374d65b81b9743bf1c8809b1f95063fadeb2b9ca2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "519d4f7d19be6a5f10fdfc374d65b81b9743bf1c8809b1f95063fadeb2b9ca2c", kill_on_drop: false }`
[INFO] [stdout] 519d4f7d19be6a5f10fdfc374d65b81b9743bf1c8809b1f95063fadeb2b9ca2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e35f22510432b8de7cbaa4b5887359dc529324fc619889ac3a03f42f38b8fb9
[INFO] running `Command { std: "docker" "start" "-a" "1e35f22510432b8de7cbaa4b5887359dc529324fc619889ac3a03f42f38b8fb9", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `create_dir`
[INFO] [stderr]    --> src/main.rs:251:4
[INFO] [stderr]     |
[INFO] [stderr] 251 | fn create_dir(path: &str) -> io::Result<String> { // after moving this fn into a module, make this one private
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `path_digi_suffix` should have an upper case name
[INFO] [stderr]   --> src/main.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |     static ref path_digi_suffix: Regex = Regex::new(r"_\((\d+)\)$").unwrap(); // to match a directory name: this_is_a_directory_(123)
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `PATH_DIGI_SUFFIX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `unwrap` (bin "unwrap" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/unwrap-90e7c6f38104f5b4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1e35f22510432b8de7cbaa4b5887359dc529324fc619889ac3a03f42f38b8fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e35f22510432b8de7cbaa4b5887359dc529324fc619889ac3a03f42f38b8fb9", kill_on_drop: false }`
[INFO] [stdout] 1e35f22510432b8de7cbaa4b5887359dc529324fc619889ac3a03f42f38b8fb9