[INFO] fetching crate multi-logger 0.0.1...
[INFO] checking multi-logger-0.0.1 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate multi-logger 0.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate multi-logger 0.0.1 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multi-logger 0.0.1
[INFO] finished tweaking crates.io crate multi-logger 0.0.1
[INFO] tweaked toml for crates.io crate multi-logger 0.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d190c8e6d35e29a5dc2140f4f0ddac4d7ca98d2d46932a2f23f8fcf866b8995a
[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" "d190c8e6d35e29a5dc2140f4f0ddac4d7ca98d2d46932a2f23f8fcf866b8995a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d190c8e6d35e29a5dc2140f4f0ddac4d7ca98d2d46932a2f23f8fcf866b8995a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d190c8e6d35e29a5dc2140f4f0ddac4d7ca98d2d46932a2f23f8fcf866b8995a", kill_on_drop: false }`
[INFO] [stdout] d190c8e6d35e29a5dc2140f4f0ddac4d7ca98d2d46932a2f23f8fcf866b8995a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 320daf2e02a58191049e4b9ee1b15c975ec1db4aafb3ecb366d6cefe5eda772c
[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" "320daf2e02a58191049e4b9ee1b15c975ec1db4aafb3ecb366d6cefe5eda772c", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling vergen v3.1.0
[INFO] [stderr]    Compiling multi-logger v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `multi-logger`
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Flags`
[INFO] [stdout]  --> build.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     vergen(Flags::all());
[INFO] [stdout]   |            ^^^^^ use of undeclared type `Flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0423]: expected function, found crate `vergen`
[INFO] [stdout]  --> build.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     vergen(Flags::all());
[INFO] [stdout]   |     ^^^^^^ not a function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] warning: unused import: `vergen::*`
[INFO] [stdout]  --> build.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use vergen::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0423, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "320daf2e02a58191049e4b9ee1b15c975ec1db4aafb3ecb366d6cefe5eda772c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320daf2e02a58191049e4b9ee1b15c975ec1db4aafb3ecb366d6cefe5eda772c", kill_on_drop: false }`
[INFO] [stdout] 320daf2e02a58191049e4b9ee1b15c975ec1db4aafb3ecb366d6cefe5eda772c