[INFO] crate is-rust 0.1.0 is already in cache
[INFO] testing is-rust-0.1.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate is-rust 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate is-rust 0.1.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate is-rust 0.1.0
[INFO] finished tweaking crates.io crate is-rust 0.1.0
[INFO] tweaked toml for crates.io crate is-rust 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a7d2b10c5f1f800b5436749b9c73f357772793a2ca0932dd7edada8cc9b8e82c
[INFO] running `"docker" "start" "-a" "a7d2b10c5f1f800b5436749b9c73f357772793a2ca0932dd7edada8cc9b8e82c"`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "a7d2b10c5f1f800b5436749b9c73f357772793a2ca0932dd7edada8cc9b8e82c"`
[INFO] running `"docker" "rm" "-f" "a7d2b10c5f1f800b5436749b9c73f357772793a2ca0932dd7edada8cc9b8e82c"`
[INFO] [stdout] a7d2b10c5f1f800b5436749b9c73f357772793a2ca0932dd7edada8cc9b8e82c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 192327c4ec1047e1f2c6369956b710c4ecf77dc7f54f131b7f514192dadb4a8f
[INFO] running `"docker" "start" "-a" "192327c4ec1047e1f2c6369956b710c4ecf77dc7f54f131b7f514192dadb4a8f"`
[INFO] [stderr]    Compiling is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "192327c4ec1047e1f2c6369956b710c4ecf77dc7f54f131b7f514192dadb4a8f"`
[INFO] running `"docker" "rm" "-f" "192327c4ec1047e1f2c6369956b710c4ecf77dc7f54f131b7f514192dadb4a8f"`
[INFO] [stdout] 192327c4ec1047e1f2c6369956b710c4ecf77dc7f54f131b7f514192dadb4a8f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] bb9b053909b6a4d4f55b6bfbb769611e000fe89ef4b074ccd8898f59c18474af
[INFO] running `"docker" "start" "-a" "bb9b053909b6a4d4f55b6bfbb769611e000fe89ef4b074ccd8898f59c18474af"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/is_rust-5ee2b048de909e93
[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 is-rust
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs -  (line 9) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 55) ... ok
[INFO] [stdout] test src/lib.rs -  (line 71) ... ok
[INFO] [stdout] test src/lib.rs -  (line 89) ... ok
[INFO] [stdout] test src/lib.rs -  (line 37) ... ok
[INFO] [stdout] test src/lib.rs -  (line 81) ... ok
[INFO] [stdout] test src/lib.rs -  (line 63) ... ok
[INFO] [stdout] test src/lib.rs - is_at_least_rusty (line 180) ... ok
[INFO] [stdout] test src/lib.rs -  (line 45) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 127) ... ok
[INFO] [stdout] test src/lib.rs - is_rust (line 135) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 158) ... ok
[INFO] [stdout] test src/lib.rs - is_not_rust (line 216) ... ok
[INFO] [stdout] test src/lib.rs - is_rusty (line 164) ... ok
[INFO] [stdout] test src/lib.rs - is_very_rusty (line 200) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bb9b053909b6a4d4f55b6bfbb769611e000fe89ef4b074ccd8898f59c18474af"`
[INFO] running `"docker" "rm" "-f" "bb9b053909b6a4d4f55b6bfbb769611e000fe89ef4b074ccd8898f59c18474af"`
[INFO] [stdout] bb9b053909b6a4d4f55b6bfbb769611e000fe89ef4b074ccd8898f59c18474af