[INFO] cloning repository https://github.com/indutny/append-multi-log
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/indutny/append-multi-log" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Findutny%2Fappend-multi-log", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Findutny%2Fappend-multi-log'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2169eb250dcd3477a1aabc9b72331e0597306b43
[INFO] testing indutny/append-multi-log against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Findutny%2Fappend-multi-log" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/indutny/append-multi-log on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/indutny/append-multi-log
[INFO] finished tweaking git repo https://github.com/indutny/append-multi-log
[INFO] tweaked toml for git repo https://github.com/indutny/append-multi-log written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/indutny/append-multi-log already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 401e1ecd19ce0c9db281d985549d54f90350fc077a07394e6a97e77752a46d1c
[INFO] running `Command { std: "docker" "start" "-a" "401e1ecd19ce0c9db281d985549d54f90350fc077a07394e6a97e77752a46d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "401e1ecd19ce0c9db281d985549d54f90350fc077a07394e6a97e77752a46d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401e1ecd19ce0c9db281d985549d54f90350fc077a07394e6a97e77752a46d1c", kill_on_drop: false }`
[INFO] [stdout] 401e1ecd19ce0c9db281d985549d54f90350fc077a07394e6a97e77752a46d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 7f1a6f4b21da1ff4aba315e23038f6fb8ed522f4c8e66da9cc1bdad93eab1af5
[INFO] running `Command { std: "docker" "start" "-a" "7f1a6f4b21da1ff4aba315e23038f6fb8ed522f4c8e66da9cc1bdad93eab1af5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling append-log v0.1.4-dev
[INFO] [stderr]    Compiling append-multi-log v0.1.0-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:29:39
[INFO] [stdout]    |
[INFO] [stdout] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/error.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/log.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `options`
[INFO] [stdout]   --> src/log.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     options: Options,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `logs`
[INFO] [stdout]   --> src/log.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     logs: Vec<Log>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `log_count`
[INFO] [stdout]   --> src/log.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     log_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `log_path`
[INFO] [stdout]   --> src/log.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn log_path(path: &Path, index: usize) -> PathBuf {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "7f1a6f4b21da1ff4aba315e23038f6fb8ed522f4c8e66da9cc1bdad93eab1af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f1a6f4b21da1ff4aba315e23038f6fb8ed522f4c8e66da9cc1bdad93eab1af5", kill_on_drop: false }`
[INFO] [stdout] 7f1a6f4b21da1ff4aba315e23038f6fb8ed522f4c8e66da9cc1bdad93eab1af5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c6ffef1ca73e1a9c475df65f3dbd5ccc7c9cc3d63361f91a0c3efe15ff50b32
[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" "3c6ffef1ca73e1a9c475df65f3dbd5ccc7c9cc3d63361f91a0c3efe15ff50b32", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:29:39
[INFO] [stdout]    |
[INFO] [stdout] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/error.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/log.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `options`
[INFO] [stdout]   --> src/log.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     options: Options,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `logs`
[INFO] [stdout]   --> src/log.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     logs: Vec<Log>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `log_count`
[INFO] [stdout]   --> src/log.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     log_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `log_path`
[INFO] [stdout]   --> src/log.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn log_path(path: &Path, index: usize) -> PathBuf {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling append-multi-log v0.1.0-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tempfile::tempdir`
[INFO] [stdout]   --> src/log.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     use tempfile::tempdir;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:29:39
[INFO] [stdout]    |
[INFO] [stdout] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/error.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/log.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `options`
[INFO] [stdout]   --> src/log.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     options: Options,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `logs`
[INFO] [stdout]   --> src/log.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     logs: Vec<Log>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `log_count`
[INFO] [stdout]   --> src/log.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     log_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.19s
[INFO] running `Command { std: "docker" "inspect" "3c6ffef1ca73e1a9c475df65f3dbd5ccc7c9cc3d63361f91a0c3efe15ff50b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6ffef1ca73e1a9c475df65f3dbd5ccc7c9cc3d63361f91a0c3efe15ff50b32", kill_on_drop: false }`
[INFO] [stdout] 3c6ffef1ca73e1a9c475df65f3dbd5ccc7c9cc3d63361f91a0c3efe15ff50b32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a2c3ccc11546024ab97a504f666a83e0db082f5df9e364340486e20792485f8
[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" "5a2c3ccc11546024ab97a504f666a83e0db082f5df9e364340486e20792485f8", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/error.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `path`
[INFO] [stderr]   --> src/log.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     path: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `options`
[INFO] [stderr]   --> src/log.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     options: Options,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `logs`
[INFO] [stderr]   --> src/log.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     logs: Vec<Log>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `log_count`
[INFO] [stderr]   --> src/log.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     log_count: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `log_path`
[INFO] [stderr]   --> src/log.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn log_path(path: &Path, index: usize) -> PathBuf {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempfile::tempdir`
[INFO] [stderr]   --> src/log.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     use tempfile::tempdir;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/error.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             _ => write!(f, "{}", self.description()),
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `path`
[INFO] [stderr]   --> src/log.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     path: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `options`
[INFO] [stderr]   --> src/log.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     options: Options,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `logs`
[INFO] [stderr]   --> src/log.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     logs: Vec<Log>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `log_count`
[INFO] [stderr]   --> src/log.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     log_count: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/append_multi_log-7c16d63be285ac34
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test log::tests::it_should_construct_proper_log_path ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests append-multi-log
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5a2c3ccc11546024ab97a504f666a83e0db082f5df9e364340486e20792485f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2c3ccc11546024ab97a504f666a83e0db082f5df9e364340486e20792485f8", kill_on_drop: false }`
[INFO] [stdout] 5a2c3ccc11546024ab97a504f666a83e0db082f5df9e364340486e20792485f8