[INFO] fetching crate optative 0.1.4...
[INFO] testing optative-0.1.4 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate optative 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate optative 0.1.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate optative 0.1.4
[INFO] tweaked toml for crates.io crate optative 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate optative 0.1.4 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate optative 0.1.4 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36
[INFO] running `Command { std: "docker" "start" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.46
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling optative v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 6.95s
[INFO] running `Command { std: "docker" "inspect" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling http v1.4.2
[INFO] [stderr]    Compiling chunked_transfer v1.5.0
[INFO] [stderr]    Compiling ascii v1.1.0
[INFO] [stderr]    Compiling tiny_http v0.12.0
[INFO] [stderr]    Compiling ureq-proto v0.6.0
[INFO] [stderr]    Compiling ureq v3.3.0
[INFO] [stderr]    Compiling optative v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 14.98s
[INFO] running `Command { std: "docker" "inspect" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/optative/dc9cb9ff3a305ebb/out/optative-dc9cb9ff3a305ebb)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::duplicate_keys_in_batch_only_one_enter ... ok
[INFO] [stdout] test tests::channel_output::exit_does_not_receive_output ... ok
[INFO] [stdout] test tests::enter_err::enter_err_not_added_to_store_error_returned ... ok
[INFO] [stdout] test tests::enter_err::enter_ok_adds_item_to_store_no_errors ... ok
[INFO] [stdout] test reconcile::tests::trait_usability::accepts_mock_reconciler ... ok
[INFO] [stdout] test reconcile::tests::mock_reconciler::records_calls_without_managing_state ... ok
[INFO] [stdout] test tests::channel_output::enter_receives_output_and_can_write_to_it ... ok
[INFO] [stdout] test reconcile::tests::trait_usability::accepts_managed_set ... ok
[INFO] [stdout] test reconcile::tests::managed_set_via_trait::calls_reconcile_self_for_existing_item ... ok
[INFO] [stdout] test reconcile::tests::managed_set_via_trait::calls_exit_for_removed_item ... ok
[INFO] [stdout] test tests::reconcile_err::reconcile_err_records_error_without_removing_or_calling_exit ... ok
[INFO] [stdout] test tests::get_returns_state_after_enter ... ok
[INFO] [stdout] test tests::removed_item_calls_exit_with_old_state ... ok
[INFO] [stdout] test tests::iter_mut_yields_mutable_state_visible_via_get ... ok
[INFO] [stdout] test tests::new_item_calls_enter_and_stores_state ... ok
[INFO] [stdout] test reconcile::tests::managed_set_via_trait::calls_enter_for_new_item ... ok
[INFO] [stdout] test tests::existing_item_calls_reconcile_self_not_enter ... ok
[INFO] [stderr]      Running tests/json_set.rs (/opt/rustwide/target/release/build/optative/cb790895e05f1a83/out/json_set-cb790895e05f1a83)
[INFO] [stdout] test tests::get_mut_returns_mutable_reference_visible_via_get ... ok
[INFO] [stdout] test tests::get_returns_updated_state_after_reconcile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test missing_file_starts_empty_and_creates_it_on_reconcile ... ok
[INFO] [stdout] test open_removes_a_stale_new_file_left_by_a_crashed_write ... ok
[INFO] [stdout] test persist_failure_is_reported_not_panicked ... FAILED
[INFO] [stdout] test state_survives_a_reload_and_skips_enter_for_known_keys ... ok
[INFO] [stdout] test removed_key_calls_exit_and_is_dropped_from_the_file ... ok
[INFO] [stdout] test unchanged_value_survives_a_reload_without_a_spurious_enter ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- persist_failure_is_reported_not_panicked stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'persist_failure_is_reported_not_panicked' (553) panicked at tests/json_set.rs:206:5:
[INFO] [stdout] write failure must not panic
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b340136451 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x55b34014b0fa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x55b34013a93c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x55b3401108c6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x55b34012d939 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x55b3400c30c0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x55b34012daf2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x55b3401109a4 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x55b3401092d9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x55b34011172d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x55b34014b82c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x55b3400b0b29 - <json_set[cff8a05789fe6dac]::persist_failure_is_reported_not_panicked::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   12:     0x55b3400b650b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   13:     0x55b3400c36e5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   14:     0x55b3400bcfd4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   15:     0x55b3400c6772 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   16:     0x55b34013576f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   17:     0x7eef9db53dfa - <unknown>
[INFO] [stdout]   18:     0x7eef9dbe73d4 - clone
[INFO] [stdout]   19:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     persist_failure_is_reported_not_panicked
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test json_set`
[INFO] running `Command { std: "docker" "inspect" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36", kill_on_drop: false }`
[INFO] [stdout] 4ed15890956b50fdeea2186b1de7ec7a999dccd5d1dcfafa78a2416700e14b36
