[INFO] cloning repository https://github.com/anselvo/playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anselvo/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanselvo%2Fplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanselvo%2Fplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80203bfdfa6a59b1d9769336ac9c3633b14dca01
[INFO] testing anselvo/playground against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanselvo%2Fplayground" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anselvo/playground
[INFO] finished tweaking git repo https://github.com/anselvo/playground
[INFO] tweaked toml for git repo https://github.com/anselvo/playground written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anselvo/playground on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anselvo/playground 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" "+beta-2026-01-20" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a52ebea132d797852270ca60a30e313817b13a64bf45b7bc117045a8ffa35ed1
[INFO] running `Command { std: "docker" "start" "-a" "a52ebea132d797852270ca60a30e313817b13a64bf45b7bc117045a8ffa35ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a52ebea132d797852270ca60a30e313817b13a64bf45b7bc117045a8ffa35ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52ebea132d797852270ca60a30e313817b13a64bf45b7bc117045a8ffa35ed1", kill_on_drop: false }`
[INFO] [stdout] a52ebea132d797852270ca60a30e313817b13a64bf45b7bc117045a8ffa35ed1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91458e6404082b079f7c552a6056f7716e6aca6c8920075aff9702249c22ca56
[INFO] running `Command { std: "docker" "start" "-a" "91458e6404082b079f7c552a6056f7716e6aca6c8920075aff9702249c22ca56", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling socket2 v0.5.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tokio v1.32.0
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated functions `new` and `new_node` are never used
[INFO] [stdout]   --> src/leetcode/easy/a_21.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl ListNode {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout]  8 |     #[inline]
[INFO] [stdout]  9 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn new_node(val: i32, node: ListNode) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClientTokioSelect` is never constructed
[INFO] [stdout]  --> src/chat/client.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ClientTokioSelect;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `Command { std: "docker" "inspect" "91458e6404082b079f7c552a6056f7716e6aca6c8920075aff9702249c22ca56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91458e6404082b079f7c552a6056f7716e6aca6c8920075aff9702249c22ca56", kill_on_drop: false }`
[INFO] [stdout] 91458e6404082b079f7c552a6056f7716e6aca6c8920075aff9702249c22ca56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d943547c6ee06a146924742a48d3c8bf484a677aa081274c63ad92cad8f2fed
[INFO] running `Command { std: "docker" "start" "-a" "4d943547c6ee06a146924742a48d3c8bf484a677aa081274c63ad92cad8f2fed", kill_on_drop: false }`
[INFO] [stdout] warning: associated functions `new` and `new_node` are never used
[INFO] [stdout]   --> src/leetcode/easy/a_21.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl ListNode {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout]  8 |     #[inline]
[INFO] [stdout]  9 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn new_node(val: i32, node: ListNode) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ClientTokioSelect` is never constructed
[INFO] [stdout]  --> src/chat/client.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ClientTokioSelect;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "4d943547c6ee06a146924742a48d3c8bf484a677aa081274c63ad92cad8f2fed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d943547c6ee06a146924742a48d3c8bf484a677aa081274c63ad92cad8f2fed", kill_on_drop: false }`
[INFO] [stdout] 4d943547c6ee06a146924742a48d3c8bf484a677aa081274c63ad92cad8f2fed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3db134e5fc44a9607dec423de7850caf3f64af55a761c4a19dd2c94593b5257c
[INFO] running `Command { std: "docker" "start" "-a" "3db134e5fc44a9607dec423de7850caf3f64af55a761c4a19dd2c94593b5257c", kill_on_drop: false }`
[INFO] [stderr] warning: associated functions `new` and `new_node` are never used
[INFO] [stderr]   --> src/leetcode/easy/a_21.rs:9:8
[INFO] [stderr]    |
[INFO] [stderr]  7 | impl ListNode {
[INFO] [stderr]    | ------------- associated functions in this implementation
[INFO] [stderr]  8 |     #[inline]
[INFO] [stderr]  9 |     fn new(val: i32) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 14 |     fn new_node(val: i32, node: ListNode) -> Self {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (lib) generated 1 warning
[INFO] [stderr] warning: struct `ClientTokioSelect` is never constructed
[INFO] [stderr]  --> src/chat/client.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct ClientTokioSelect;
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (bin "playground" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/playground-507ccf620a41da10)
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test algorithms::search::tests::should_test_recursive_search ... ok
[INFO] [stdout] test algorithms::search::tests::should_test_while_search ... ok
[INFO] [stdout] test algorithms::sort::tests::should_test_bubble_sort ... ok
[INFO] [stdout] test algorithms::sort::tests::should_test_counting_sort ... ok
[INFO] [stdout] test leetcode::easy::a_13::tests::test ... ok
[INFO] [stdout] test algorithms::sort::tests::should_test_merge_sort ... ok
[INFO] [stdout] test leetcode::easy::a_20::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_21::tests::test1 ... ok
[INFO] [stdout] test leetcode::easy::a_21::tests::test2 ... ok
[INFO] [stdout] test leetcode::easy::a_21::tests::test3 ... ok
[INFO] [stdout] test leetcode::easy::a_21::tests::test4 ... ok
[INFO] [stdout] test leetcode::easy::a_222::tests::test_bfs ... ok
[INFO] [stdout] test leetcode::easy::a_222::tests::test_dfs ... ok
[INFO] [stdout] test leetcode::easy::a_26::tests::test1 ... ok
[INFO] [stdout] test leetcode::easy::a_26::tests::test2 ... ok
[INFO] [stdout] test leetcode::easy::a_27::tests::test1 ... ok
[INFO] [stdout] test leetcode::easy::a_27::tests::test2 ... ok
[INFO] [stdout] test leetcode::easy::a_28::tests::test ... ok
[INFO] [stdout] test algorithms::sort::tests::should_test_insertion_sort ... ok
[INFO] [stdout] test leetcode::easy::a_3110::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_35::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_58::tests::test ... ok
[INFO] [stdout] test algorithms::fib::tests::should_test_while_fib ... ok
[INFO] [stdout] test leetcode::easy::a_66::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_67::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_67::tests::test_u128 ... ok
[INFO] [stdout] test leetcode::easy::a_14::tests::test ... ok
[INFO] [stdout] test algorithms::sort::tests::should_test_selection_sort ... ok
[INFO] [stdout] test leetcode::easy::a_9::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_69::tests::test ... ok
[INFO] [stdout] test leetcode::tests::test ... ok
[INFO] [stdout] test leetcode::easy::a_69::tests::test_bruteforce ... ok
[INFO] [stdout] test patterns::singleton::tests::should_create_only_one_instance ... ok
[INFO] [stdout] test structures::queue::tests::should_create_queue ... ok
[INFO] [stdout] test structures::queue::tests::should_pop_from_queue ... ok
[INFO] [stdout] test structures::queue::tests::should_push_to_queue ... ok
[INFO] [stdout] test structures::vector::tests::should_create_vector ... ok
[INFO] [stdout] test structures::vector::tests::should_pop_from_vector ... ok
[INFO] [stdout] test structures::vector::tests::should_push_to_vector ... ok
[INFO] [stdout] test leetcode::easy::a_70::tests::test ... ok
[INFO] [stdout] test leetcode::medium::a_33::tests::test ... ok
[INFO] [stdout] test algorithms::fib::tests::should_test_recursive_fib ... ok
[INFO] [stdout] test leetcode::hard::a_4::tests::test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- leetcode::hard::a_4::tests::test stdout ----
[INFO] [stdout] 0 4 = 2 || 0 4 = 2 --- 3 7
[INFO] [stdout] 3 4 = 3 || 0 2 = 1 --- 4 6
[INFO] [stdout] 4 4 = 3 || 0 1 = 0 --- 4 5
[INFO] [stdout] 4 0
[INFO] [stdout] 
[INFO] [stdout] thread 'leetcode::hard::a_4::tests::test' (50) panicked at src/leetcode/hard/a_4.rs:18:31:
[INFO] [stdout] attempt to subtract with overflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x65032a43b602 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x65032a43b602 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x65032a43b602 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x65032a43b602 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x65032a44c4fa - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x65032a44c4fa - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x65032a40a586 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x65032a40a586 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x65032a41aae9 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x65032a41aae9 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x65032a41a981 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x65032a3df02e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x65032a3df02e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x65032a41ad62 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x65032a41ad62 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x65032a41abda - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x65032a416139 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x65032a3ff17d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x65032a45398c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x65032a453669 - core::panicking::panic_const::panic_const_sub_overflow::h65ab8bb9d5c6a2db
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:175:17
[INFO] [stdout]   20:     0x65032a3b276d - playground::leetcode::hard::a_4::find_median_sorted_arrays::hd53df469cbef4f41
[INFO] [stdout]                                at /opt/rustwide/workdir/src/leetcode/hard/a_4.rs:18:31
[INFO] [stdout]   21:     0x65032a3b67ca - playground::leetcode::hard::a_4::tests::test::h8dc0eb8c3c31d359
[INFO] [stdout]                                at /opt/rustwide/workdir/src/leetcode/hard/a_4.rs:38:20
[INFO] [stdout]   22:     0x65032a3b7037 - playground::leetcode::hard::a_4::tests::test::{{closure}}::hd9de24e8b55b73b9
[INFO] [stdout]                                at /opt/rustwide/workdir/src/leetcode/hard/a_4.rs:37:14
[INFO] [stdout]   23:     0x65032a3bad36 - core::ops::function::FnOnce::call_once::ha80d1fcd077d8b5b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x65032a3dee2b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x65032a3dee2b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x65032a3f27fa - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x65032a3f27fa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x65032a3f27fa - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x65032a3f27fa - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x65032a3f27fa - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x65032a3f27fa - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x65032a3f27fa - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x65032a3ccc54 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x65032a3ccc54 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x65032a3d0512 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x65032a3d0512 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x65032a3d0512 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x65032a3d0512 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x65032a3d0512 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x65032a3d0512 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x65032a3d0512 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x65032a4113cf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x65032a4113cf - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   44:     0x7f84998f5aa4 - <unknown>
[INFO] [stdout]   45:     0x7f8499982a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     leetcode::hard::a_4::tests::test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 42 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3db134e5fc44a9607dec423de7850caf3f64af55a761c4a19dd2c94593b5257c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db134e5fc44a9607dec423de7850caf3f64af55a761c4a19dd2c94593b5257c", kill_on_drop: false }`
[INFO] [stdout] 3db134e5fc44a9607dec423de7850caf3f64af55a761c4a19dd2c94593b5257c
