[INFO] updating cached repository https://github.com/indutny/append-multi-log
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2169eb250dcd3477a1aabc9b72331e0597306b43
[INFO] testing indutny/append-multi-log against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Findutny%2Fappend-multi-log" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/indutny/append-multi-log on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/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 `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cf883cfd5530993c25932aa70536d24e864767de60f0554f01758afb46e0eb3d
[INFO] running `"docker" "start" "-a" "cf883cfd5530993c25932aa70536d24e864767de60f0554f01758afb46e0eb3d"`
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling append-log v0.1.4-dev
[INFO] [stderr]    Compiling append-multi-log v0.1.0-dev (/opt/rustwide/workdir)
[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: method is never used: `log_path`
[INFO] [stderr]   --> src/log.rs:28:5
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `"docker" "inspect" "cf883cfd5530993c25932aa70536d24e864767de60f0554f01758afb46e0eb3d"`
[INFO] running `"docker" "rm" "-f" "cf883cfd5530993c25932aa70536d24e864767de60f0554f01758afb46e0eb3d"`
[INFO] [stdout] cf883cfd5530993c25932aa70536d24e864767de60f0554f01758afb46e0eb3d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stdout] e61868206b9cf844d8de9b5ee8a692784adecbf67a8ccf77bc0f480369e097dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e61868206b9cf844d8de9b5ee8a692784adecbf67a8ccf77bc0f480369e097dd"`
[INFO] [stderr]    Compiling rand_core v0.4.0
[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: method is never used: `log_path`
[INFO] [stderr]   --> src/log.rs:28:5
[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]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling append-multi-log v0.1.0-dev (/opt/rustwide/workdir)
[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 7.53s
[INFO] running `"docker" "inspect" "e61868206b9cf844d8de9b5ee8a692784adecbf67a8ccf77bc0f480369e097dd"`
[INFO] running `"docker" "rm" "-f" "e61868206b9cf844d8de9b5ee8a692784adecbf67a8ccf77bc0f480369e097dd"`
[INFO] [stdout] e61868206b9cf844d8de9b5ee8a692784adecbf67a8ccf77bc0f480369e097dd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a5605938714e0185e67bce4e63656a32a0cf550f0787e366a89002a0cb5eec6
[INFO] running `"docker" "start" "-a" "9a5605938714e0185e67bce4e63656a32a0cf550f0787e366a89002a0cb5eec6"`
[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: method is never used: `log_path`
[INFO] [stderr]   --> src/log.rs:28:5
[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 0.25s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/append_multi_log-3339ede0aac323ef
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test log::tests::it_should_construct_proper_log_path ... ok
[INFO] [stderr]    Doc-tests append-multi-log
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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 `"docker" "inspect" "9a5605938714e0185e67bce4e63656a32a0cf550f0787e366a89002a0cb5eec6"`
[INFO] running `"docker" "rm" "-f" "9a5605938714e0185e67bce4e63656a32a0cf550f0787e366a89002a0cb5eec6"`
[INFO] [stdout] 9a5605938714e0185e67bce4e63656a32a0cf550f0787e366a89002a0cb5eec6