[INFO] crate kernlog 0.2.1 is already in cache
[INFO] testing kernlog-0.2.1 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate kernlog 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate kernlog 0.2.1 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 crates.io crate kernlog 0.2.1
[INFO] finished tweaking crates.io crate kernlog 0.2.1
[INFO] tweaked toml for crates.io crate kernlog 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 008ce32f2c5276eb08964044fc6eba3bddc5b455485331ea474595f1bc080966
[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" "008ce32f2c5276eb08964044fc6eba3bddc5b455485331ea474595f1bc080966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "008ce32f2c5276eb08964044fc6eba3bddc5b455485331ea474595f1bc080966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008ce32f2c5276eb08964044fc6eba3bddc5b455485331ea474595f1bc080966", kill_on_drop: false }`
[INFO] [stdout] 008ce32f2c5276eb08964044fc6eba3bddc5b455485331ea474595f1bc080966
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 93a23a285677d00c39cc0facab2bd5680b369c382385ab3ebe4da59bd7e2a889
[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" "93a23a285677d00c39cc0facab2bd5680b369c382385ab3ebe4da59bd7e2a889", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling kernlog v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `log::LogMetadata`, `log::LogRecord`, `log::LogLevel`, `log::MaxLogLevelFilter`, `log::LogLevelFilter`
[INFO] [stdout]   --> src/lib.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 54 | use log::{Log, LogMetadata, LogRecord, LogLevel, MaxLogLevelFilter, LogLevelFilter, SetLoggerError};
[INFO] [stdout]    |                ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^ no `LogLevelFilter` in the root
[INFO] [stdout]    |                |            |          |         |
[INFO] [stdout]    |                |            |          |         no `MaxLogLevelFilter` in the root
[INFO] [stdout]    |                |            |          no `LogLevel` in the root
[INFO] [stdout]    |                |            no `LogRecord` in the root
[INFO] [stdout]    |                no `LogMetadata` in the root
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 54 | use log::{Log, Metadata, LogRecord, LogLevel, MaxLogLevelFilter, LogLevelFilter, SetLoggerError};
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 54 | use log::{Log, LogMetadata, Record, LogLevel, MaxLogLevelFilter, LogLevelFilter, SetLoggerError};
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 54 | use log::{Log, LogMetadata, LogRecord, LogLevel, MaxLogLevelFilter, LevelFilter, SetLoggerError};
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:77:51
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn init(filter: MaxLogLevelFilter) -> Box<Log> {
[INFO] [stdout]    |                                                   ^^^ help: use `dyn`: `dyn Log`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:84:55
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn init_env(filter: MaxLogLevelFilter) -> Box<Log> {
[INFO] [stdout]    |                                                       ^^^ help: use `dyn`: `dyn Log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:95:80
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn init_level(level: LogLevelFilter, filter: MaxLogLevelFilter) -> Box<Log> {
[INFO] [stdout]    |                                                                                ^^^ help: use `dyn`: `dyn Log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `flush`
[INFO] [stdout]    --> src/lib.rs:101:1
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Log for KernelLog {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^ missing `flush` in implementation
[INFO] [stdout]     |
[INFO] [stdout]     = help: implement the missing item: `fn flush(&self) { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 157 |     log::set_logger(KernelLog::init)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     expected reference, found fn item
[INFO] [stdout]     |                     help: consider borrowing here: `&KernelLog::init`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&'static (dyn log::Log + 'static)`
[INFO] [stdout]                  found fn item `fn([type error]) -> std::boxed::Box<(dyn log::Log + 'static)> {KernelLog::init}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0308, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernlog`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "93a23a285677d00c39cc0facab2bd5680b369c382385ab3ebe4da59bd7e2a889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a23a285677d00c39cc0facab2bd5680b369c382385ab3ebe4da59bd7e2a889", kill_on_drop: false }`
[INFO] [stdout] 93a23a285677d00c39cc0facab2bd5680b369c382385ab3ebe4da59bd7e2a889