[INFO] fetching crate rstring-builder 0.1.4...
[INFO] testing rstring-builder-0.1.4 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate rstring-builder 0.1.4 into /workspace/builds/worker-0-tc1/source
[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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rstring-builder 0.1.4 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d182e57bf83dadcc02ac675e25c37d212807764c094c62942d0ff8d1f128a217
[INFO] running `Command { std: "docker" "start" "-a" "d182e57bf83dadcc02ac675e25c37d212807764c094c62942d0ff8d1f128a217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d182e57bf83dadcc02ac675e25c37d212807764c094c62942d0ff8d1f128a217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d182e57bf83dadcc02ac675e25c37d212807764c094c62942d0ff8d1f128a217", kill_on_drop: false }`
[INFO] [stdout] d182e57bf83dadcc02ac675e25c37d212807764c094c62942d0ff8d1f128a217
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a169eed838090d8d47c713ee1194a5010b71fe8f5fa9811ceec53469b8bee72
[INFO] running `Command { std: "docker" "start" "-a" "8a169eed838090d8d47c713ee1194a5010b71fe8f5fa9811ceec53469b8bee72", kill_on_drop: false }`
[INFO] [stderr]    Compiling rstring-builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "8a169eed838090d8d47c713ee1194a5010b71fe8f5fa9811ceec53469b8bee72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a169eed838090d8d47c713ee1194a5010b71fe8f5fa9811ceec53469b8bee72", kill_on_drop: false }`
[INFO] [stdout] 8a169eed838090d8d47c713ee1194a5010b71fe8f5fa9811ceec53469b8bee72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a9f285b843a386c0486b2158a663529f063a75e3375492e7fd016ae455205c7
[INFO] running `Command { std: "docker" "start" "-a" "5a9f285b843a386c0486b2158a663529f063a75e3375492e7fd016ae455205c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rstring-builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "5a9f285b843a386c0486b2158a663529f063a75e3375492e7fd016ae455205c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9f285b843a386c0486b2158a663529f063a75e3375492e7fd016ae455205c7", kill_on_drop: false }`
[INFO] [stdout] 5a9f285b843a386c0486b2158a663529f063a75e3375492e7fd016ae455205c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dfe96eac0de56d0487a70e1a5026ff218e603d5a816ad40c7b18f9828ab34dd5
[INFO] running `Command { std: "docker" "start" "-a" "dfe96eac0de56d0487a70e1a5026ff218e603d5a816ad40c7b18f9828ab34dd5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rstring_builder-eac92d7c00fb5a86)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_string_builder.rs (/opt/rustwide/target/debug/deps/test_string_builder-25af3906a9d6cd52)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_string_builder ... ok
[INFO] [stdout] test test_num ... ok
[INFO] [stdout] test test_bool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rstring_builder
[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::is_empty (line 134) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::clear (line 105) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::delete (line 77) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::delete_at (line 61) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::string (line 121) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::append (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dfe96eac0de56d0487a70e1a5026ff218e603d5a816ad40c7b18f9828ab34dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe96eac0de56d0487a70e1a5026ff218e603d5a816ad40c7b18f9828ab34dd5", kill_on_drop: false }`
[INFO] [stdout] dfe96eac0de56d0487a70e1a5026ff218e603d5a816ad40c7b18f9828ab34dd5