[INFO] fetching crate tendril 0.4.2...
[INFO] testing tendril-0.4.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tendril 0.4.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tendril 0.4.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tendril 0.4.2
[INFO] finished tweaking crates.io crate tendril 0.4.2
[INFO] tweaked toml for crates.io crate tendril 0.4.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate tendril 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dea8e693a991a5b348cba3576adc5e81f37d28d9677a7a5a299903811135222
[INFO] running `Command { std: "docker" "start" "-a" "4dea8e693a991a5b348cba3576adc5e81f37d28d9677a7a5a299903811135222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dea8e693a991a5b348cba3576adc5e81f37d28d9677a7a5a299903811135222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dea8e693a991a5b348cba3576adc5e81f37d28d9677a7a5a299903811135222", kill_on_drop: false }`
[INFO] [stdout] 4dea8e693a991a5b348cba3576adc5e81f37d28d9677a7a5a299903811135222
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6939a0ee40d6741cb687a6f5a8c2fc057612fe8e979f1fa6fbd6fa13c048590f
[INFO] running `Command { std: "docker" "start" "-a" "6939a0ee40d6741cb687a6f5a8c2fc057612fe8e979f1fa6fbd6fa13c048590f", kill_on_drop: false }`
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling tendril v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "6939a0ee40d6741cb687a6f5a8c2fc057612fe8e979f1fa6fbd6fa13c048590f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6939a0ee40d6741cb687a6f5a8c2fc057612fe8e979f1fa6fbd6fa13c048590f", kill_on_drop: false }`
[INFO] [stdout] 6939a0ee40d6741cb687a6f5a8c2fc057612fe8e979f1fa6fbd6fa13c048590f
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12ec7fd58592d5b73d6ce9ce62e17b984ca45573fb1ea49285f155956278f1e3
[INFO] running `Command { std: "docker" "start" "-a" "12ec7fd58592d5b73d6ce9ce62e17b984ca45573fb1ea49285f155956278f1e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling tendril v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.26s
[INFO] running `Command { std: "docker" "inspect" "12ec7fd58592d5b73d6ce9ce62e17b984ca45573fb1ea49285f155956278f1e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12ec7fd58592d5b73d6ce9ce62e17b984ca45573fb1ea49285f155956278f1e3", kill_on_drop: false }`
[INFO] [stdout] 12ec7fd58592d5b73d6ce9ce62e17b984ca45573fb1ea49285f155956278f1e3
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9ab803fe7007e7f8408f71f87187ab7cc61500bc4d956cced36d1af6ca638c7b
[INFO] running `Command { std: "docker" "start" "-a" "9ab803fe7007e7f8408f71f87187ab7cc61500bc4d956cced36d1af6ca638c7b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stdout] running 36 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tendril-1ecbbe639f5a67d7)
[INFO] [stdout] test buf32::test::smoke_test ... ok
[INFO] [stdout] test stream::test::utf8 ... ok
[INFO] [stdout] test tendril::test::conversion ... ok
[INFO] [stdout] test tendril::test::hash_map_key ... ok
[INFO] [stdout] test tendril::test::deref_mut ... ok
[INFO] [stdout] test tendril::test::clear ... ok
[INFO] [stdout] test tendril::test::format ... ok
[INFO] [stdout] test tendril::test::extend_and_from_iterator ... ok
[INFO] [stdout] test tendril::test::compare ... ok
[INFO] [stdout] test tendril::test::ascii ... ok
[INFO] [stdout] test tendril::test::char_run ... ok
[INFO] [stdout] test tendril::test::format_debug ... ok
[INFO] [stdout] test tendril::test::assert_sizes ... ok
[INFO] [stdout] test tendril::test::format_display ... ok
[INFO] [stdout] test tendril::test::from_char ... ok
[INFO] [stdout] test tendril::test::from_str ... ok
[INFO] [stdout] test tendril::test::front_char ... ok
[INFO] [stdout] test stream::test::read_from ... ok
[INFO] [stdout] test tendril::test::deref_mut_inline ... ok
[INFO] [stdout] test tendril::test::inline_send ... ok
[INFO] [stdout] test tendril::test::latin1 ... ok
[INFO] [stdout] test tendril::test::merge_shared ... ok
[INFO] [stdout] test tendril::test::out_of_bounds ... ok
[INFO] [stdout] test tendril::test::merge_cant_share ... ok
[INFO] [stdout] test tendril::test::atomic ... ok
[INFO] [stdout] test tendril::test::push_char ... ok
[INFO] [stdout] test tendril::test::subtendril ... ok
[INFO] [stdout] test tendril::test::subtendril_invalid ... ok
[INFO] [stdout] test tendril::test::wtf8 ... ok
[INFO] [stdout] test tendril::test::validate_utf8 ... ok
[INFO] [stdout] test tendril::test::smoke_test ... ok
[INFO] [stdout] test tendril::test::push_tendril ... ok
[INFO] [stdout] test tendril::test::shared_doesnt_reserve ... ok
[INFO] [stdout] test tendril::test::share_and_unshare ... ok
[INFO] [stdout] test tendril::test::send ... ok
[INFO] [stderr]    Doc-tests tendril
[INFO] [stdout] test tendril::test::read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "9ab803fe7007e7f8408f71f87187ab7cc61500bc4d956cced36d1af6ca638c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab803fe7007e7f8408f71f87187ab7cc61500bc4d956cced36d1af6ca638c7b", kill_on_drop: false }`
[INFO] [stdout] 9ab803fe7007e7f8408f71f87187ab7cc61500bc4d956cced36d1af6ca638c7b