[INFO] fetching crate microstr 0.4.0...
[INFO] testing microstr-0.4.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate microstr 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate microstr 0.4.0
[INFO] finished tweaking crates.io crate microstr 0.4.0
[INFO] tweaked toml for crates.io crate microstr 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microstr 0.4.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate microstr 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83704d0a16394a16b4074132ad55d7426a518eb04febda1e00d8a2bb03ccf505
[INFO] running `Command { std: "docker" "start" "-a" "83704d0a16394a16b4074132ad55d7426a518eb04febda1e00d8a2bb03ccf505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83704d0a16394a16b4074132ad55d7426a518eb04febda1e00d8a2bb03ccf505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83704d0a16394a16b4074132ad55d7426a518eb04febda1e00d8a2bb03ccf505", kill_on_drop: false }`
[INFO] [stdout] 83704d0a16394a16b4074132ad55d7426a518eb04febda1e00d8a2bb03ccf505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 479531f4cf9b0c794a2e6af5350cab0396d6dd39966fa0bb5fce7fbc48ca5937
[INFO] running `Command { std: "docker" "start" "-a" "479531f4cf9b0c794a2e6af5350cab0396d6dd39966fa0bb5fce7fbc48ca5937", kill_on_drop: false }`
[INFO] [stderr]    Compiling microstr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "479531f4cf9b0c794a2e6af5350cab0396d6dd39966fa0bb5fce7fbc48ca5937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "479531f4cf9b0c794a2e6af5350cab0396d6dd39966fa0bb5fce7fbc48ca5937", kill_on_drop: false }`
[INFO] [stdout] 479531f4cf9b0c794a2e6af5350cab0396d6dd39966fa0bb5fce7fbc48ca5937
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a7b9b10f11b7e12bd93376a1ca343cafd4851e5d4b0382d19ebed7f1f95d219
[INFO] running `Command { std: "docker" "start" "-a" "5a7b9b10f11b7e12bd93376a1ca343cafd4851e5d4b0382d19ebed7f1f95d219", kill_on_drop: false }`
[INFO] [stderr]    Compiling microstr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `serde`
[INFO] [stdout]    --> src/tests.rs:221:7
[INFO] [stdout]     |
[INFO] [stdout] 221 | #[cfg(feature = "serde")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `default` and `std`
[INFO] [stdout]     = help: consider adding `serde` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "5a7b9b10f11b7e12bd93376a1ca343cafd4851e5d4b0382d19ebed7f1f95d219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7b9b10f11b7e12bd93376a1ca343cafd4851e5d4b0382d19ebed7f1f95d219", kill_on_drop: false }`
[INFO] [stdout] 5a7b9b10f11b7e12bd93376a1ca343cafd4851e5d4b0382d19ebed7f1f95d219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc87fa934498f05201eb77729095f585fe14aff15f40187aa1230ab3a4d7ae52
[INFO] running `Command { std: "docker" "start" "-a" "dc87fa934498f05201eb77729095f585fe14aff15f40187aa1230ab3a4d7ae52", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `serde`
[INFO] [stderr]    --> src/tests.rs:221:7
[INFO] [stderr]     |
[INFO] [stderr] 221 | #[cfg(feature = "serde")]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected values for `feature` are: `default` and `std`
[INFO] [stderr]     = help: consider adding `serde` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `microstr` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/microstr-d55d7d1305733e76)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test tests::compare ... ok
[INFO] [stdout] test tests::bytes ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test tests::constants_and_variables ... ok
[INFO] [stdout] test tests::default ... ok
[INFO] [stdout] test tests::deref ... ok
[INFO] [stdout] test tests::fmt ... ok
[INFO] [stdout] test tests::from_const ... ok
[INFO] [stdout] test tests::from_raw_buffer ... ok
[INFO] [stdout] test tests::into_raw_buffer ... ok
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::pointers ... ok
[INFO] [stdout] test tests::from_str_unchecked ... ok
[INFO] [stdout] test tests::output ... ok
[INFO] [stdout] test tests::from_str ... ok
[INFO] [stdout] test tests::push_str ... ok
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] test tests::truncate ... ok
[INFO] [stdout] test tests::push_char ... ok
[INFO] [stdout] test tests::truncator ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests microstr
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::as_str_mut (line 496) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::bytes_len (line 331) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::extra_capacity (line 299) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::from_const (line 155) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::clear (line 563) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<A>::eq (line 625) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::as_str (line 476) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::as_mut_ptr (line 264) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::capacity (line 283) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::deref_mut (line 666) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::is_empty (line 313) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::as_ptr (line 247) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::as_mut_bytes (line 528) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::as_bytes (line 512) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::from_raw_buffer (line 191) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::from_str (line 120) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::push (line 395) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::push_str_unchecked (line 419) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::into_raw_buffer (line 545) ... ok
[INFO] [stdout] test src/std_only.rs - std_only::String::from (line 68) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::deref (line 648) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::truncate (line 584) ... ok
[INFO] [stdout] test src/macros.rs - macros::microstr (line 8) ... ok
[INFO] [stdout] test src/std_only.rs - std_only::MicroStr<CAP>::fmt (line 12) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::push_unchecked (line 367) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::push_str (line 445) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::len (line 347) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::new (line 90) ... ok
[INFO] [stdout] test src/lib.rs - MicroStr<CAP>::from_str_unchecked (line 224) ... ok
[INFO] [stdout] test src/std_only.rs - std_only::MicroStr<CAP>::from (line 49) ... ok
[INFO] [stdout] test src/std_only.rs - std_only::MicroStr<CAP>::fmt (line 29) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc87fa934498f05201eb77729095f585fe14aff15f40187aa1230ab3a4d7ae52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc87fa934498f05201eb77729095f585fe14aff15f40187aa1230ab3a4d7ae52", kill_on_drop: false }`
[INFO] [stdout] dc87fa934498f05201eb77729095f585fe14aff15f40187aa1230ab3a4d7ae52