[INFO] cloning repository https://github.com/qx-oo/ping_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qx-oo/ping_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqx-oo%2Fping_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqx-oo%2Fping_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24632ca21800be2aa03df9f0518eb9590bda1ef2
[INFO] testing qx-oo/ping_list against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqx-oo%2Fping_list" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qx-oo/ping_list on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qx-oo/ping_list
[INFO] finished tweaking git repo https://github.com/qx-oo/ping_list
[INFO] tweaked toml for git repo https://github.com/qx-oo/ping_list written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/qx-oo/ping_list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.97
[INFO] [stderr]   Downloaded syn v0.15.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9768fe29890cba5f8ff2de15acac0dd8819db39c5c3b57594f3c5ab7b51b27d4
[INFO] running `Command { std: "docker" "start" "-a" "9768fe29890cba5f8ff2de15acac0dd8819db39c5c3b57594f3c5ab7b51b27d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9768fe29890cba5f8ff2de15acac0dd8819db39c5c3b57594f3c5ab7b51b27d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9768fe29890cba5f8ff2de15acac0dd8819db39c5c3b57594f3c5ab7b51b27d4", kill_on_drop: false }`
[INFO] [stdout] 9768fe29890cba5f8ff2de15acac0dd8819db39c5c3b57594f3c5ab7b51b27d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 699bef228bde44f070353831fcd1626916e3652feff97edd626a01939e2fdbba
[INFO] running `Command { std: "docker" "start" "-a" "699bef228bde44f070353831fcd1626916e3652feff97edd626a01939e2fdbba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.10
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling regex v1.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling ping_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/ping.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stdout]    |                                    ^^                                                            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 13 -     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stdout] 13 +     static ref PING_REGEX: Regex = Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `Command { std: "docker" "inspect" "699bef228bde44f070353831fcd1626916e3652feff97edd626a01939e2fdbba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699bef228bde44f070353831fcd1626916e3652feff97edd626a01939e2fdbba", kill_on_drop: false }`
[INFO] [stdout] 699bef228bde44f070353831fcd1626916e3652feff97edd626a01939e2fdbba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3f6b18611742c4ab2162c80f31837fc07527b0b475fabeb2edc81b6b4f0573f
[INFO] running `Command { std: "docker" "start" "-a" "e3f6b18611742c4ab2162c80f31837fc07527b0b475fabeb2edc81b6b4f0573f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/ping.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stdout]    |                                    ^^                                                            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 13 -     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stdout] 13 +     static ref PING_REGEX: Regex = Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ping_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/ping.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stdout]    |                                    ^^                                                            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 13 -     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stdout] 13 +     static ref PING_REGEX: Regex = Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "e3f6b18611742c4ab2162c80f31837fc07527b0b475fabeb2edc81b6b4f0573f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f6b18611742c4ab2162c80f31837fc07527b0b475fabeb2edc81b6b4f0573f", kill_on_drop: false }`
[INFO] [stdout] e3f6b18611742c4ab2162c80f31837fc07527b0b475fabeb2edc81b6b4f0573f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9aae58ed017fa3a08cbcfb978f1f132d44c5cf8f5ef288b59fd94ac86f2cc609
[INFO] running `Command { std: "docker" "start" "-a" "9aae58ed017fa3a08cbcfb978f1f132d44c5cf8f5ef288b59fd94ac86f2cc609", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/ping.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stderr]    |                                    ^^                                                            ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] 13 -     static ref PING_REGEX: Regex = { Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap() };
[INFO] [stderr] 13 +     static ref PING_REGEX: Regex = Regex::new(r"\d{2} bytes from.*time=(?P<ts>.*) ms").unwrap();
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `ping_list` (lib) generated 1 warning
[INFO] [stderr] warning: `ping_list` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ping_list-ea8ac690394a880b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "9aae58ed017fa3a08cbcfb978f1f132d44c5cf8f5ef288b59fd94ac86f2cc609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aae58ed017fa3a08cbcfb978f1f132d44c5cf8f5ef288b59fd94ac86f2cc609", kill_on_drop: false }`
[INFO] [stdout] 9aae58ed017fa3a08cbcfb978f1f132d44c5cf8f5ef288b59fd94ac86f2cc609