[INFO] fetching crate session_log 0.1.6...
[INFO] testing session_log-0.1.6 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate session_log 0.1.6 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate session_log 0.1.6 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate session_log 0.1.6
[INFO] finished tweaking crates.io crate session_log 0.1.6
[INFO] tweaked toml for crates.io crate session_log 0.1.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.56.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bb062cceed83df8bda08aabf00bbe16cdf7bb6eec74c9543c45581f1373c052
[INFO] running `Command { std: "docker" "start" "-a" "6bb062cceed83df8bda08aabf00bbe16cdf7bb6eec74c9543c45581f1373c052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bb062cceed83df8bda08aabf00bbe16cdf7bb6eec74c9543c45581f1373c052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb062cceed83df8bda08aabf00bbe16cdf7bb6eec74c9543c45581f1373c052", kill_on_drop: false }`
[INFO] [stdout] 6bb062cceed83df8bda08aabf00bbe16cdf7bb6eec74c9543c45581f1373c052
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa7859939095f8f2f85bdbf5ff5d81faa82398b41d8aff801d2c098464969fe6
[INFO] running `Command { std: "docker" "start" "-a" "aa7859939095f8f2f85bdbf5ff5d81faa82398b41d8aff801d2c098464969fe6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling uuid v1.8.0
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling session_log v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/logger.rs:326:7
[INFO] [stdout]     |
[INFO] [stdout] 326 |       writeln!(file, "{}", message);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "aa7859939095f8f2f85bdbf5ff5d81faa82398b41d8aff801d2c098464969fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7859939095f8f2f85bdbf5ff5d81faa82398b41d8aff801d2c098464969fe6", kill_on_drop: false }`
[INFO] [stdout] aa7859939095f8f2f85bdbf5ff5d81faa82398b41d8aff801d2c098464969fe6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70f9ce3e97a77e4fb832f5efc9d72b3108f33d4f5aa37d1cdb66f187a81ae0bd
[INFO] running `Command { std: "docker" "start" "-a" "70f9ce3e97a77e4fb832f5efc9d72b3108f33d4f5aa37d1cdb66f187a81ae0bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling session_log v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/logger.rs:326:7
[INFO] [stdout]     |
[INFO] [stdout] 326 |       writeln!(file, "{}", message);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/logger.rs:326:7
[INFO] [stdout]     |
[INFO] [stdout] 326 |       writeln!(file, "{}", message);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "70f9ce3e97a77e4fb832f5efc9d72b3108f33d4f5aa37d1cdb66f187a81ae0bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70f9ce3e97a77e4fb832f5efc9d72b3108f33d4f5aa37d1cdb66f187a81ae0bd", kill_on_drop: false }`
[INFO] [stdout] 70f9ce3e97a77e4fb832f5efc9d72b3108f33d4f5aa37d1cdb66f187a81ae0bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b81659eea7b10481f4c54e7606a6aa3113f509504c7e4e6a250d484aa9f60dc
[INFO] running `Command { std: "docker" "start" "-a" "2b81659eea7b10481f4c54e7606a6aa3113f509504c7e4e6a250d484aa9f60dc", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/logger.rs:326:7
[INFO] [stderr]     |
[INFO] [stderr] 326 |       writeln!(file, "{}", message);
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `session_log` (lib) generated 1 warning
[INFO] [stderr] warning: `session_log` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/session_log-fde69b26b18b0b75)
[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] [stderr]    Doc-tests session_log
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/logger.rs - logger::Logger::new (line 97) - compile ... FAILED
[INFO] [stdout] test src/logger.rs - logger::Logger::set_proc (line 264) - compile ... ok
[INFO] [stdout] test src/logger.rs - logger::Logger::get_directory (line 209) - compile ... ok
[INFO] [stdout] test src/logger.rs - logger::Logger::get_level (line 163) - compile ... ok
[INFO] [stdout] test src/session.rs - session::Session (line 20) - compile ... ok
[INFO] [stdout] test src/logger.rs - logger::Logger::set_directory (line 230) - compile ... FAILED
[INFO] [stdout] test src/logger.rs - logger::Logger::set_level (line 183) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/logger.rs - logger::Logger::new (line 97) stdout ----
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/logger.rs:107:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     .set_directory("logs/main");
[INFO] [stdout]    |     ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/logger.rs - logger::Logger::set_directory (line 230) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/logger.rs:237:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let mut logger = Logger::new("main");
[INFO] [stdout]   |                    ------------------- expected due to this value
[INFO] [stdout] 8 |
[INFO] [stdout] 9 |   logger = logger.set_directory("logs/main");
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Logger`, found `Result<Logger, Error>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected struct `Logger`
[INFO] [stdout]                found enum `Result<Logger, std::io::Error>`
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Result<Logger, std::io::Error>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]   |
[INFO] [stdout] 9 |   logger = logger.set_directory("logs/main").expect("REASON");
[INFO] [stdout]   |                                             +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/logger.rs:240:12
[INFO] [stdout]    |
[INFO] [stdout] 7  |   let mut logger = Logger::new("main");
[INFO] [stdout]    |                    ------------------- expected due to this value
[INFO] [stdout] ...
[INFO] [stdout] 12 |   logger = logger.set_directory("logs/other");
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Logger`, found `Result<Logger, Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Logger`
[INFO] [stdout]                 found enum `Result<Logger, std::io::Error>`
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Result<Logger, std::io::Error>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 12 |   logger = logger.set_directory("logs/other").expect("REASON");
[INFO] [stdout]    |                                              +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/logger.rs - logger::Logger::new (line 97)
[INFO] [stdout]     src/logger.rs - logger::Logger::set_directory (line 230)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2b81659eea7b10481f4c54e7606a6aa3113f509504c7e4e6a250d484aa9f60dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b81659eea7b10481f4c54e7606a6aa3113f509504c7e4e6a250d484aa9f60dc", kill_on_drop: false }`
[INFO] [stdout] 2b81659eea7b10481f4c54e7606a6aa3113f509504c7e4e6a250d484aa9f60dc
