[INFO] crate rstring-builder 0.1.4 is already in cache
[INFO] testing rstring-builder-0.1.4 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate rstring-builder 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rstring-builder 0.1.4 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rstring-builder 0.1.4
[INFO] finished tweaking crates.io crate rstring-builder 0.1.4
[INFO] tweaked toml for crates.io crate rstring-builder 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] daee14b48e82d9501f3d6ed84710942d75ea84e54b71ce553a1fa3331c0b7e43
[INFO] running `"docker" "start" "-a" "daee14b48e82d9501f3d6ed84710942d75ea84e54b71ce553a1fa3331c0b7e43"`
[INFO] [stderr]    Compiling rstring-builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "daee14b48e82d9501f3d6ed84710942d75ea84e54b71ce553a1fa3331c0b7e43"`
[INFO] running `"docker" "rm" "-f" "daee14b48e82d9501f3d6ed84710942d75ea84e54b71ce553a1fa3331c0b7e43"`
[INFO] [stdout] daee14b48e82d9501f3d6ed84710942d75ea84e54b71ce553a1fa3331c0b7e43
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] bd2731644ada486b62928f8970a0c3708a6bd6b3ec425faadec12a2ca0e5bc16
[INFO] running `"docker" "start" "-a" "bd2731644ada486b62928f8970a0c3708a6bd6b3ec425faadec12a2ca0e5bc16"`
[INFO] [stderr]    Compiling rstring-builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "bd2731644ada486b62928f8970a0c3708a6bd6b3ec425faadec12a2ca0e5bc16"`
[INFO] running `"docker" "rm" "-f" "bd2731644ada486b62928f8970a0c3708a6bd6b3ec425faadec12a2ca0e5bc16"`
[INFO] [stdout] bd2731644ada486b62928f8970a0c3708a6bd6b3ec425faadec12a2ca0e5bc16
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] fea96ff16df9532c1a822fbf04676a26f6b136779238f6c2e48d08908d617630
[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" "fea96ff16df9532c1a822fbf04676a26f6b136779238f6c2e48d08908d617630"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rstring_builder-e34a1ab99749409a
[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]      Running /opt/rustwide/target/debug/deps/test_string_builder-e0cde59beaf5188e
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_num ... ok
[INFO] [stdout] test test_string_builder ... ok
[INFO] [stdout] test test_bool ... ok
[INFO] [stderr]    Doc-tests rstring-builder
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - StringBuilder::len (line 44) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::delete (line 77) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::append (line 30) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::delete_at (line 61) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::clear (line 105) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::string (line 121) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::is_empty (line 134) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fea96ff16df9532c1a822fbf04676a26f6b136779238f6c2e48d08908d617630"`
[INFO] running `"docker" "rm" "-f" "fea96ff16df9532c1a822fbf04676a26f6b136779238f6c2e48d08908d617630"`
[INFO] [stdout] fea96ff16df9532c1a822fbf04676a26f6b136779238f6c2e48d08908d617630