[INFO] crate kvlogger 0.3.2 is already in cache
[INFO] testing kvlogger-0.3.2 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate kvlogger 0.3.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate kvlogger 0.3.2 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kvlogger 0.3.2
[INFO] finished tweaking crates.io crate kvlogger 0.3.2
[INFO] tweaked toml for crates.io crate kvlogger 0.3.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate kvlogger 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 75ae4b05a3063bd3b2d58d817821d0754852ff646edc7577e2835d872f938184
[INFO] running `"docker" "start" "-a" "75ae4b05a3063bd3b2d58d817821d0754852ff646edc7577e2835d872f938184"`
[INFO] [stderr]    Compiling regex-syntax v0.6.16
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling kvlogger v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.11s
[INFO] running `"docker" "inspect" "75ae4b05a3063bd3b2d58d817821d0754852ff646edc7577e2835d872f938184"`
[INFO] running `"docker" "rm" "-f" "75ae4b05a3063bd3b2d58d817821d0754852ff646edc7577e2835d872f938184"`
[INFO] [stdout] 75ae4b05a3063bd3b2d58d817821d0754852ff646edc7577e2835d872f938184
[INFO] running `"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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stdout] b4479f8ef226955fd57f5f5edb7034f3214918ea4275a20006abb12aa6131b5d
[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" "b4479f8ef226955fd57f5f5edb7034f3214918ea4275a20006abb12aa6131b5d"`
[INFO] [stderr]    Compiling kvlogger v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `"docker" "inspect" "b4479f8ef226955fd57f5f5edb7034f3214918ea4275a20006abb12aa6131b5d"`
[INFO] running `"docker" "rm" "-f" "b4479f8ef226955fd57f5f5edb7034f3214918ea4275a20006abb12aa6131b5d"`
[INFO] [stdout] b4479f8ef226955fd57f5f5edb7034f3214918ea4275a20006abb12aa6131b5d
[INFO] running `"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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 8db6df0b5fa4a4e7c7f6bda7f67d129417a61d03035d9d39c1ced7e301ed084e
[INFO] running `"docker" "start" "-a" "8db6df0b5fa4a4e7c7f6bda7f67d129417a61d03035d9d39c1ced7e301ed084e"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kvlogger-a03ea33c956295eb
[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] [stderr]    Doc-tests kvlogger
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/macros.rs - kvlog (line 8) ... FAILED
[INFO] [stdout] test src/builder.rs - builder::KvLoggerBuilder (line 10) ... FAILED
[INFO] [stdout] test src/lib.rs -  (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/macros.rs - kvlog (line 8) stdout ----
[INFO] [stdout] error: cannot find macro `kvlog` in this scope
[INFO] [stdout]  --> src/macros.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | kvlog!(Info, "a user just logged in", {
[INFO] [stdout]   | ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/builder.rs - builder::KvLoggerBuilder (line 10) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `KvLogger`
[INFO] [stdout]  --> src/builder.rs:11:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | KvLogger::default().init?;
[INFO] [stdout]   | ^^^^^^^^ use of undeclared type or module `KvLogger`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `KvLogger`
[INFO] [stdout]  --> src/builder.rs:13:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | KvLogger::default()
[INFO] [stdout]   | ^^^^^^^^ use of undeclared type or module `KvLogger`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Level`
[INFO] [stdout]  --> src/builder.rs:14:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |   .set_level(Level::Debug)
[INFO] [stdout]   |              ^^^^^ use of undeclared type or module `Level`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]  --> src/builder.rs:11:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / fn main() {
[INFO] [stdout] 3 | | KvLogger::default().init?;
[INFO] [stdout]   | | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   | | |
[INFO] [stdout]   | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4 | |
[INFO] [stdout] 5 | | KvLogger::default()
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |   .init()?;
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]  --> src/builder.rs:13:1
[INFO] [stdout]   |
[INFO] [stdout] 2 |  / fn main() {
[INFO] [stdout] 3 |  | KvLogger::default().init?;
[INFO] [stdout] 4 |  |
[INFO] [stdout] 5 |  | KvLogger::default()
[INFO] [stdout]   |  |_^
[INFO] [stdout] 6 | ||   .set_level(Level::Debug)
[INFO] [stdout] 7 | ||   .set_datetime_format("%Y-%m-%d")
[INFO] [stdout] 8 | ||   .init()?;
[INFO] [stdout]   | ||__________^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 9 |  | }
[INFO] [stdout]   |  |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/builder.rs - builder::KvLoggerBuilder (line 10)
[INFO] [stdout]     src/macros.rs - kvlog (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "8db6df0b5fa4a4e7c7f6bda7f67d129417a61d03035d9d39c1ced7e301ed084e"`
[INFO] running `"docker" "rm" "-f" "8db6df0b5fa4a4e7c7f6bda7f67d129417a61d03035d9d39c1ced7e301ed084e"`
[INFO] [stdout] 8db6df0b5fa4a4e7c7f6bda7f67d129417a61d03035d9d39c1ced7e301ed084e