[INFO] cloning repository https://github.com/layen-king/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/layen-king/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayen-king%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayen-king%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0363c9353b941ba62ac17e65182d8c48344fe05f
[INFO] testing layen-king/rust-learning against 1.55.0 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayen-king%2Frust-learning" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/layen-king/rust-learning on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/layen-king/rust-learning
[INFO] finished tweaking git repo https://github.com/layen-king/rust-learning
[INFO] tweaked toml for git repo https://github.com/layen-king/rust-learning written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/layen-king/rust-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 658d2547051d474cab707aef0d45358c31e59e6a49f10e1d1bbbe467519afe00
[INFO] running `Command { std: "docker" "start" "-a" "658d2547051d474cab707aef0d45358c31e59e6a49f10e1d1bbbe467519afe00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "658d2547051d474cab707aef0d45358c31e59e6a49f10e1d1bbbe467519afe00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658d2547051d474cab707aef0d45358c31e59e6a49f10e1d1bbbe467519afe00", kill_on_drop: false }`
[INFO] [stdout] 658d2547051d474cab707aef0d45358c31e59e6a49f10e1d1bbbe467519afe00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2ec030de8ad4790fb667d72a3cc3d912038ec89bd1d6be178451431ce773383
[INFO] running `Command { std: "docker" "start" "-a" "d2ec030de8ad4790fb667d72a3cc3d912038ec89bd1d6be178451431ce773383", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir/leetcode)
[INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> leetcode/src/balanced_string_split.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compare_version`
[INFO] [stdout]   --> leetcode/src/compare_version.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn compare_version(version1: String, version2: String) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compare_version1`
[INFO] [stdout]   --> leetcode/src/compare_version.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn compare_version1(version1: String, version2: String) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling mime_types v0.1.0 (/opt/rustwide/workdir/mime_types)
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling event_emiter v0.1.0 (/opt/rustwide/workdir/event_emiter)
[INFO] [stderr]    Compiling http v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.03s
[INFO] running `Command { std: "docker" "inspect" "d2ec030de8ad4790fb667d72a3cc3d912038ec89bd1d6be178451431ce773383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ec030de8ad4790fb667d72a3cc3d912038ec89bd1d6be178451431ce773383", kill_on_drop: false }`
[INFO] [stdout] d2ec030de8ad4790fb667d72a3cc3d912038ec89bd1d6be178451431ce773383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f18419a02274a49a4609844c3a5d25d22ec4bc31b0b61e8c9235e01be741a6b0
[INFO] running `Command { std: "docker" "start" "-a" "f18419a02274a49a4609844c3a5d25d22ec4bc31b0b61e8c9235e01be741a6b0", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> leetcode/src/balanced_string_split.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling http v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `compare_version`
[INFO] [stdout]   --> leetcode/src/compare_version.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn compare_version(version1: String, version2: String) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compare_version1`
[INFO] [stdout]   --> leetcode/src/compare_version.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn compare_version1(version1: String, version2: String) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "f18419a02274a49a4609844c3a5d25d22ec4bc31b0b61e8c9235e01be741a6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18419a02274a49a4609844c3a5d25d22ec4bc31b0b61e8c9235e01be741a6b0", kill_on_drop: false }`
[INFO] [stdout] f18419a02274a49a4609844c3a5d25d22ec4bc31b0b61e8c9235e01be741a6b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb2d1a97847098c60dc5bd6deb9f60a70e89a83f46aadb5557d6337826ba53e4
[INFO] running `Command { std: "docker" "start" "-a" "eb2d1a97847098c60dc5bd6deb9f60a70e89a83f46aadb5557d6337826ba53e4", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]   --> leetcode/src/balanced_string_split.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 78 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stderr]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compare_version`
[INFO] [stderr]   --> leetcode/src/compare_version.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn compare_version(version1: String, version2: String) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compare_version1`
[INFO] [stderr]   --> leetcode/src/compare_version.rs:90:4
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn compare_version1(version1: String, version2: String) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode` (lib) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/http-f577f8a8dc351d5a)
[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" "eb2d1a97847098c60dc5bd6deb9f60a70e89a83f46aadb5557d6337826ba53e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb2d1a97847098c60dc5bd6deb9f60a70e89a83f46aadb5557d6337826ba53e4", kill_on_drop: false }`
[INFO] [stdout] eb2d1a97847098c60dc5bd6deb9f60a70e89a83f46aadb5557d6337826ba53e4