[INFO] fetching crate rstring-builder 0.1.4...
[INFO] testing rstring-builder-0.1.4 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate rstring-builder 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rstring-builder 0.1.4 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 907861b205e3bd7ac72f1f1049cedb8bcc45665f024b679610a1b72f95f05e93
[INFO] running `Command { std: "docker" "start" "-a" "907861b205e3bd7ac72f1f1049cedb8bcc45665f024b679610a1b72f95f05e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "907861b205e3bd7ac72f1f1049cedb8bcc45665f024b679610a1b72f95f05e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907861b205e3bd7ac72f1f1049cedb8bcc45665f024b679610a1b72f95f05e93", kill_on_drop: false }`
[INFO] [stdout] 907861b205e3bd7ac72f1f1049cedb8bcc45665f024b679610a1b72f95f05e93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 735a1c1150353f333ec5e31d9c027532aec6d14097700904b6953c4fc9e7ba52
[INFO] running `Command { std: "docker" "start" "-a" "735a1c1150353f333ec5e31d9c027532aec6d14097700904b6953c4fc9e7ba52", kill_on_drop: false }`
[INFO] [stderr]    Compiling rstring-builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "735a1c1150353f333ec5e31d9c027532aec6d14097700904b6953c4fc9e7ba52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735a1c1150353f333ec5e31d9c027532aec6d14097700904b6953c4fc9e7ba52", kill_on_drop: false }`
[INFO] [stdout] 735a1c1150353f333ec5e31d9c027532aec6d14097700904b6953c4fc9e7ba52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbf02d3797e88c4f651d551675aaf1814b5f30a969f3a55aa177e06cb6b1b183
[INFO] running `Command { std: "docker" "start" "-a" "dbf02d3797e88c4f651d551675aaf1814b5f30a969f3a55aa177e06cb6b1b183", kill_on_drop: false }`
[INFO] [stderr]    Compiling rstring-builder v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "dbf02d3797e88c4f651d551675aaf1814b5f30a969f3a55aa177e06cb6b1b183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf02d3797e88c4f651d551675aaf1814b5f30a969f3a55aa177e06cb6b1b183", kill_on_drop: false }`
[INFO] [stdout] dbf02d3797e88c4f651d551675aaf1814b5f30a969f3a55aa177e06cb6b1b183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6fa9f8987b90560a9193bb7f98d2baeda860dbef60e30c167bd6dd1f4499f39
[INFO] running `Command { std: "docker" "start" "-a" "d6fa9f8987b90560a9193bb7f98d2baeda860dbef60e30c167bd6dd1f4499f39", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rstring_builder-ead0b5b1b1d0ff97)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_string_builder.rs (/opt/rustwide/target/debug/deps/test_string_builder-dcf8c12c8c1e6603)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests rstring-builder
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_string_builder ... ok
[INFO] [stdout] test test_bool ... ok
[INFO] [stdout] test test_num ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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::string (line 121) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::is_empty (line 134) ... 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::clear (line 105) ... 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 1.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6fa9f8987b90560a9193bb7f98d2baeda860dbef60e30c167bd6dd1f4499f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6fa9f8987b90560a9193bb7f98d2baeda860dbef60e30c167bd6dd1f4499f39", kill_on_drop: false }`
[INFO] [stdout] d6fa9f8987b90560a9193bb7f98d2baeda860dbef60e30c167bd6dd1f4499f39