[INFO] cloning repository https://github.com/zarix908/logsdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zarix908/logsdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzarix908%2Flogsdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzarix908%2Flogsdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35f0e079203e5817e6d613184d013ebd4bf7c8cd
[INFO] testing zarix908/logsdb 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%2Fzarix908%2Flogsdb" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zarix908/logsdb 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/zarix908/logsdb
[INFO] finished tweaking git repo https://github.com/zarix908/logsdb
[INFO] tweaked toml for git repo https://github.com/zarix908/logsdb written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate git repo https://github.com/zarix908/logsdb 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 9a9464c37aebcd3a8457a07b4f21bcee3c8d09c70aea2a0ed6dbff3642ebfc27
[INFO] running `Command { std: "docker" "start" "-a" "9a9464c37aebcd3a8457a07b4f21bcee3c8d09c70aea2a0ed6dbff3642ebfc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a9464c37aebcd3a8457a07b4f21bcee3c8d09c70aea2a0ed6dbff3642ebfc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a9464c37aebcd3a8457a07b4f21bcee3c8d09c70aea2a0ed6dbff3642ebfc27", kill_on_drop: false }`
[INFO] [stdout] 9a9464c37aebcd3a8457a07b4f21bcee3c8d09c70aea2a0ed6dbff3642ebfc27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 7e55ea8713bcaffcfe77b4cfb5a2902af9e3aeced1803dbf55413501111c6367
[INFO] running `Command { std: "docker" "start" "-a" "7e55ea8713bcaffcfe77b4cfb5a2902af9e3aeced1803dbf55413501111c6367", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling skiplist v0.2.10
[INFO] [stderr]    Compiling logdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `LogLevel`
[INFO] [stdout]  --> src/engine.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     log::{Log, LogLevel},
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Engine`
[INFO] [stdout]  --> src/engine.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Engine {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/engine.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(writer: Box<dyn Writer>, max_len: usize) -> Engine {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/engine.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn insert(&mut self, log: Log) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `INFO`
[INFO] [stdout]  --> src/log.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     INFO = 0,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DEBUG`
[INFO] [stdout]  --> src/log.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     DEBUG,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WARN`
[INFO] [stdout]  --> src/log.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     WARN,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ERROR`
[INFO] [stdout]  --> src/log.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ERROR,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FATAL`
[INFO] [stdout]  --> src/log.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     FATAL,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PANIC`
[INFO] [stdout]   --> src/log.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     PANIC,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TRACE`
[INFO] [stdout]   --> src/log.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     TRACE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "7e55ea8713bcaffcfe77b4cfb5a2902af9e3aeced1803dbf55413501111c6367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e55ea8713bcaffcfe77b4cfb5a2902af9e3aeced1803dbf55413501111c6367", kill_on_drop: false }`
[INFO] [stdout] 7e55ea8713bcaffcfe77b4cfb5a2902af9e3aeced1803dbf55413501111c6367
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] c145a82fbcf47330f24dc1fc243becc7d0137274be97201bd4a1695b9b2ba0e6
[INFO] running `Command { std: "docker" "start" "-a" "c145a82fbcf47330f24dc1fc243becc7d0137274be97201bd4a1695b9b2ba0e6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling termtree v0.2.3
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling predicates v2.1.0
[INFO] [stderr]    Compiling mockall_derive v0.11.0
[INFO] [stderr]    Compiling mockall v0.11.0
[INFO] [stderr]    Compiling logdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `WARN`
[INFO] [stdout]  --> src/log.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     WARN,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ERROR`
[INFO] [stdout]  --> src/log.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ERROR,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FATAL`
[INFO] [stdout]  --> src/log.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     FATAL,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PANIC`
[INFO] [stdout]   --> src/log.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     PANIC,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/logdb-c42c6e32d9382299)
[INFO] running `Command { std: "docker" "inspect" "c145a82fbcf47330f24dc1fc243becc7d0137274be97201bd4a1695b9b2ba0e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c145a82fbcf47330f24dc1fc243becc7d0137274be97201bd4a1695b9b2ba0e6", kill_on_drop: false }`
[INFO] [stdout] c145a82fbcf47330f24dc1fc243becc7d0137274be97201bd4a1695b9b2ba0e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] e258a9ed01b17c1fbb960ee98c62e8534039dbc138c2d976a2cd4631befd48f6
[INFO] running `Command { std: "docker" "start" "-a" "e258a9ed01b17c1fbb960ee98c62e8534039dbc138c2d976a2cd4631befd48f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `WARN`
[INFO] [stdout] 
[INFO] [stderr]  --> src/log.rs:7:5
[INFO] [stdout] running 4 tests
[INFO] [stderr]   |
[INFO] [stdout] test engine::tests::write_logs_when_reach_max_len ... ok
[INFO] [stderr] 7 |     WARN,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ERROR`
[INFO] [stderr]  --> src/log.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ERROR,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FATAL`
[INFO] [stderr]  --> src/log.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     FATAL,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PANIC`
[INFO] [stderr]   --> src/log.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     PANIC,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `logdb` (bin "logdb" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/logdb-c42c6e32d9382299)
[INFO] [stdout] test log::tests::time_ordering ... ok
[INFO] [stdout] test log::tests::level_ordering ... ok
[INFO] [stdout] test log::tests::service_path_ordering ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e258a9ed01b17c1fbb960ee98c62e8534039dbc138c2d976a2cd4631befd48f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e258a9ed01b17c1fbb960ee98c62e8534039dbc138c2d976a2cd4631befd48f6", kill_on_drop: false }`
[INFO] [stdout] e258a9ed01b17c1fbb960ee98c62e8534039dbc138c2d976a2cd4631befd48f6