[INFO] crate immutable-seq 0.1.2 is already in cache
[INFO] extracting crate immutable-seq 0.1.2 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/immutable-seq/0.1.2
[INFO] extracting crate immutable-seq 0.1.2 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/immutable-seq/0.1.2
[INFO] validating manifest of immutable-seq-0.1.2 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of immutable-seq-0.1.2 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing immutable-seq-0.1.2
[INFO] finished frobbing immutable-seq-0.1.2
[INFO] frobbed toml for immutable-seq-0.1.2 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/immutable-seq/0.1.2/Cargo.toml
[INFO] started frobbing immutable-seq-0.1.2
[INFO] finished frobbing immutable-seq-0.1.2
[INFO] frobbed toml for immutable-seq-0.1.2 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/immutable-seq/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing immutable-seq-0.1.2 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/immutable-seq/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 4130d2dc16eead1c9ca6a8ee60e977064e14cc48149a7c259d917021aae0c0f6
[INFO] running `"docker" "start" "-a" "4130d2dc16eead1c9ca6a8ee60e977064e14cc48149a7c259d917021aae0c0f6"`
[INFO] [stderr]    Compiling immutable-seq v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "4130d2dc16eead1c9ca6a8ee60e977064e14cc48149a7c259d917021aae0c0f6"`
[INFO] running `"docker" "rm" "-f" "4130d2dc16eead1c9ca6a8ee60e977064e14cc48149a7c259d917021aae0c0f6"`
[INFO] [stdout] 4130d2dc16eead1c9ca6a8ee60e977064e14cc48149a7c259d917021aae0c0f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/immutable-seq/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9679d74a4f673c804c2c42231f5e56bf4fabfe2967c86912e1d6e6817054c424
[INFO] running `"docker" "start" "-a" "9679d74a4f673c804c2c42231f5e56bf4fabfe2967c86912e1d6e6817054c424"`
[INFO] [stderr]    Compiling immutable-seq v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.56s
[INFO] running `"docker" "inspect" "9679d74a4f673c804c2c42231f5e56bf4fabfe2967c86912e1d6e6817054c424"`
[INFO] running `"docker" "rm" "-f" "9679d74a4f673c804c2c42231f5e56bf4fabfe2967c86912e1d6e6817054c424"`
[INFO] [stdout] 9679d74a4f673c804c2c42231f5e56bf4fabfe2967c86912e1d6e6817054c424
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/immutable-seq/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 0c2eb741babc9255537679ba8510afb6dd532b025333105a4e0da9b474f69923
[INFO] running `"docker" "start" "-a" "0c2eb741babc9255537679ba8510afb6dd532b025333105a4e0da9b474f69923"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/immutable_seq-7246063025538c77
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test digit::test::test_digit_iter ... ok
[INFO] [stdout] test finger_tree::test::test_iter_inner_empty ... ok
[INFO] [stdout] test lazy::test::test_strict_should_produce_already_evaluated_thunk ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_through_redirect ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_when_accessed ... ok
[INFO] [stdout] test finger_tree::test::test_iter_single ... ok
[INFO] [stdout] test node::test::test_tree23_measure ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_just_once ... ok
[INFO] [stdout] test finger_tree::test::test_iter_inner_single ... ok
[INFO] [stdout] test finger_tree::test::test_iter_empty ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_not_evaluate_if_not_accessed ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'Muahahahah', src/lazy.rs:288:17
[INFO] [stdout] test node::test::test_node_iter ... ok
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5589f9cdbd43 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hb587d2734f1dc7c5
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x5589f9cd7a5b - std::sys_common::backtrace::_print::he39717f7cfbd122d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:70
[INFO] [stderr]    2:     0x5589f9cda9f6 - std::panicking::default_hook::{{closure}}::hb7f1ae5149814e5e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:58
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    3:     0x5589f9cda774 - std::panicking::default_hook::hc2b73d8ffc772b35
[INFO] [stderr]                                at src/libstd/panicking.rs:215
[INFO] [stderr]    4:     0x5589f9cdb100 - std::panicking::rust_panic_with_hook::h625072734a147d22
[INFO] [stderr]                                at src/libstd/panicking.rs:478
[INFO] [stderr]    5:     0x5589f9c91033 - std::panicking::begin_panic::h473dc4476af89e41
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panicking.rs:412
[INFO] [stderr]    6:     0x5589f9c7ce9a - immutable_seq::lazy::test::test_drop_internal_data_just_once::{{closure}}::{{closure}}::h00eb0807ff163aa5
[INFO] [stderr]                                at src/lazy.rs:288
[INFO] [stderr]    7:     0x5589f9c6e102 - <immutable_seq::lazy::Producer<T>>::new::{{closure}}::h507ff1deba1aaaf0
[INFO] [stderr]                                at src/lazy.rs:196
[INFO] [stderr]    8:     0x5589f9c6e58f - <F as immutable_seq::lazy::Invoke<T>>::invoke::h63dd4fc05680f66b
[INFO] [stderr]                                at src/lazy.rs:224
[INFO] [stderr]    9:     0x5589f9c6e3c7 - <immutable_seq::lazy::Producer<T>>::invoke::he5f81f048e814549
[INFO] [stderr]                                at src/lazy.rs:202
[INFO] [stderr]   10:     0x5589f9c6a113 - <immutable_seq::lazy::Thunk<T>>::force::h40a356d888bfd09f
[INFO] [stderr]                                at src/lazy.rs:108
[INFO] [stderr]   11:     0x5589f9c7cf05 - immutable_seq::lazy::test::test_drop_internal_data_just_once::{{closure}}::h50e760f16ab70dbe
[INFO] [stderr]                                at src/lazy.rs:290
[INFO] [stderr]   12:     0x5589f9c7a612 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7b69d1d9228033a0
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/sys_common/backtrace.rs:135
[INFO] [stderr]   13:     0x5589f9c90f5d - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h26a10f661c60d7e9
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/thread/mod.rs:469
[INFO] [stderr]   14:     0x5589f9c88990 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf4d2ce7c817e8898
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panic.rs:309
[INFO] [stderr]   15:     0x5589f9c91164 - std::panicking::try::do_call::h4f869dcef72b43bb
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panicking.rs:297
[INFO] [stderr]   16:     0x5589f9cde2b9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stderr]   17:     0x5589f9c9109d - std::panicking::try::h23b678db90936fcb
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panicking.rs:276
[INFO] [stderr]   18:     0x5589f9c89252 - std::panic::catch_unwind::hd53f0c8dd62fa2ec
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/panic.rs:388
[INFO] [stderr]   19:     0x5589f9c90d75 - std::thread::Builder::spawn_unchecked::{{closure}}::h46bdd066136cbcb9
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/thread/mod.rs:468
[INFO] [stderr]   20:     0x5589f9c914a6 - <F as alloc::boxed::FnBox<A>>::call_box::h6edc4900a62a1594
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/liballoc/boxed.rs:734
[INFO] [stderr]   21:     0x5589f9cdd9dd - std::sys::unix::thread::Thread::new::thread_start::h60ff5f253b4125d5
[INFO] [stderr]                                at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/liballoc/boxed.rs:744
[INFO] [stderr]                                at src/libstd/sys_common/thread.rs:14
[INFO] [stderr]                                at src/libstd/sys/unix/thread.rs:81
[INFO] [stderr]   22:     0x7fae5aaf1493 - start_thread
[INFO] [stderr]   23:     0x7fae5a61cace - __clone
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stdout] test lazy::test::test_drop_internal_data_just_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/seq-1bc56bf2cd1b6019
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test test_front_empty ... ok
[INFO] [stdout] test test_front_nonempty ... ok
[INFO] [stdout] test test_empty_len ... ok
[INFO] [stdout] test test_empty_is_empty ... ok
[INFO] [stdout] test test_back_pop_back ... ok
[INFO] [stdout] test test_back_nonempty ... ok
[INFO] [stdout] test test_back_empty ... ok
[INFO] [stdout] test test_get_empty ... ok
[INFO] [stdout] test test_get_out_of_bounds ... ok
[INFO] [stdout] test test_adjust ... ok
[INFO] [stdout] test test_get_nonempty ... ok
[INFO] [stdout] test test_iter_empty ... ok
[INFO] [stdout] test test_iter_append ... ok
[INFO] [stdout] test test_remove ... ok
[INFO] [stdout] test test_insert ... ok
[INFO] [stdout] test test_singleton_not_is_empty ... ok
[INFO] [stdout] test test_index ... ok
[INFO] [stdout] test test_iter_singleton ... ok
[INFO] [stdout] test test_split_empty ... ok
[INFO] [stdout] test test_iter_push_front ... ok
[INFO] [stdout] test test_split ... ok
[INFO] [stdout] test test_front_pop_front ... ok
[INFO] [stdout] test test_iter_push_back ... ok
[INFO] [stdout] test test_singleton_len ... ok
[INFO] [stdout] test test_split_singleton ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_vec_macro ... ok
[INFO] [stdout] test test_update ... ok
[INFO] [stdout] test test_truncate ... ok
[INFO] [stdout] test test_index_out_of_bounds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/seq_quickcheck-347fe4ed5a26a658
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_action_series_drop_slot ... ok
[INFO] [stdout] test test_check_temp ... ok
[INFO] [stdout] test check_model_u32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests immutable-seq
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lazy.rs - lazy (line 13) ... ignored
[INFO] [stdout] test src/lazy.rs - lazy::Thunk<T>::new (line 72) ... ignored
[INFO] [stdout] test src/seq.rs - seq (line 182) ... ok
[INFO] [stdout] test src/seq.rs - seq (line 193) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0c2eb741babc9255537679ba8510afb6dd532b025333105a4e0da9b474f69923"`
[INFO] running `"docker" "rm" "-f" "0c2eb741babc9255537679ba8510afb6dd532b025333105a4e0da9b474f69923"`
[INFO] [stdout] 0c2eb741babc9255537679ba8510afb6dd532b025333105a4e0da9b474f69923