[INFO] cloning repository https://github.com/xongxg/easy_rust1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xongxg/easy_rust1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxongxg%2Feasy_rust1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxongxg%2Feasy_rust1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 534ad55c1115c5efd5c8300f78e2a6ed487715af
[INFO] testing xongxg/easy_rust1 against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxongxg%2Feasy_rust1" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xongxg/easy_rust1
[INFO] finished tweaking git repo https://github.com/xongxg/easy_rust1
[INFO] tweaked toml for git repo https://github.com/xongxg/easy_rust1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xongxg/easy_rust1 on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xongxg/easy_rust1 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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.93
[INFO] [stderr]   Downloaded unicode-ident v1.0.17
[INFO] [stderr]   Downloaded serde_derive v1.0.218
[INFO] [stderr]   Downloaded quote v1.0.38
[INFO] [stderr]   Downloaded syn v2.0.98
[INFO] [stderr]   Downloaded serde v1.0.218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b6da8d21defa8d6736e44330c939b5fd7c6af25ac2886809183a4b8aa3b4bf0
[INFO] running `Command { std: "docker" "start" "-a" "2b6da8d21defa8d6736e44330c939b5fd7c6af25ac2886809183a4b8aa3b4bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b6da8d21defa8d6736e44330c939b5fd7c6af25ac2886809183a4b8aa3b4bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b6da8d21defa8d6736e44330c939b5fd7c6af25ac2886809183a4b8aa3b4bf0", kill_on_drop: false }`
[INFO] [stdout] 2b6da8d21defa8d6736e44330c939b5fd7c6af25ac2886809183a4b8aa3b4bf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73e25ed425495e8cf71f785a8f0aa75611f852773be25de2bc98d1e23cb124d4
[INFO] running `Command { std: "docker" "start" "-a" "73e25ed425495e8cf71f785a8f0aa75611f852773be25de2bc98d1e23cb124d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling easy_rust1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `PhoneModel` is never constructed
[INFO] [stdout]  --> src/cell.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct PhoneModel {
[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 `User` is never constructed
[INFO] [stdout]  --> src/refcell.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.87s
[INFO] running `Command { std: "docker" "inspect" "73e25ed425495e8cf71f785a8f0aa75611f852773be25de2bc98d1e23cb124d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73e25ed425495e8cf71f785a8f0aa75611f852773be25de2bc98d1e23cb124d4", kill_on_drop: false }`
[INFO] [stdout] 73e25ed425495e8cf71f785a8f0aa75611f852773be25de2bc98d1e23cb124d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4259420ac57501e019be222aa43c94c3973f44b1601ea082fbadfaf87a19ace9
[INFO] running `Command { std: "docker" "start" "-a" "4259420ac57501e019be222aa43c94c3973f44b1601ea082fbadfaf87a19ace9", kill_on_drop: false }`
[INFO] [stderr]    Compiling easy_rust1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `borrow_one`
[INFO] [stdout]   --> src/refcell.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let borrow_one = user_1.active.borrow_mut(); // first mutable borrow - okay
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow_one`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `borrow_two`
[INFO] [stdout]   --> src/refcell.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let borrow_two = user_1.active.borrow_mut(); // second mutable borrow - not okay
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `company_name`, `model_name`, `screen_size`, `memory`, and `date_issued` are never read
[INFO] [stdout]  --> src/cell.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct PhoneModel {
[INFO] [stdout]   |        ---------- fields in this struct
[INFO] [stdout] 5 |     company_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 6 |     model_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     screen_size: f32,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 8 |     memory: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 9 |     date_issued: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PhoneModel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `year_registered`, and `username` are never read
[INFO] [stdout]  --> src/refcell.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 6 |     year_registered: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 7 |     username: String,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "4259420ac57501e019be222aa43c94c3973f44b1601ea082fbadfaf87a19ace9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4259420ac57501e019be222aa43c94c3973f44b1601ea082fbadfaf87a19ace9", kill_on_drop: false }`
[INFO] [stdout] 4259420ac57501e019be222aa43c94c3973f44b1601ea082fbadfaf87a19ace9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 999e5c827757939da0a9b1eda8b9e9be640abb6f0bc8a3cb7cfacdd854bea78e
[INFO] running `Command { std: "docker" "start" "-a" "999e5c827757939da0a9b1eda8b9e9be640abb6f0bc8a3cb7cfacdd854bea78e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `borrow_one`
[INFO] [stderr]   --> src/refcell.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let borrow_one = user_1.active.borrow_mut(); // first mutable borrow - okay
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow_one`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `borrow_two`
[INFO] [stderr]   --> src/refcell.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let borrow_two = user_1.active.borrow_mut(); // second mutable borrow - not okay
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow_two`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `company_name`, `model_name`, `screen_size`, `memory`, and `date_issued` are never read
[INFO] [stderr]  --> src/cell.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct PhoneModel {
[INFO] [stderr]   |        ---------- fields in this struct
[INFO] [stderr] 5 |     company_name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 6 |     model_name: String,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 7 |     screen_size: f32,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 8 |     memory: usize,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 9 |     date_issued: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `PhoneModel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id`, `year_registered`, and `username` are never read
[INFO] [stderr]  --> src/refcell.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct User {
[INFO] [stderr]   |        ---- fields in this struct
[INFO] [stderr] 5 |     id: u32,
[INFO] [stderr]   |     ^^
[INFO] [stderr] 6 |     year_registered: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 7 |     username: String,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `easy_rust1` (bin "easy_rust1" test) generated 4 warnings (run `cargo fix --bin "easy_rust1" -p easy_rust1 --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/easy_rust1-fc4e6ba4063228c4)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test cell::test ... ok
[INFO] [stdout] test refcell::test_refcell ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- refcell::test_refcell stdout ----
[INFO] [stdout] user_1 active: RefCell { value: true }
[INFO] [stdout] user_1 active: RefCell { value: false }
[INFO] [stdout] user_1 active: RefCell { value: false }
[INFO] [stdout] 
[INFO] [stdout] thread 'refcell::test_refcell' (26) panicked at src/refcell.rs:33:36:
[INFO] [stdout] RefCell already borrowed
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5716f6daf6a2 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5716f6daf6a2 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5716f6daf6a2 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x5716f6daf6a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x5716f6dc0017 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5716f6dc0017 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x5716f6d7e456 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5716f6d7e456 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5716f6d8ea69 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x5716f6d8ea69 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5716f6d8e901 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5716f6d5309e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5716f6d5309e - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5716f6d8ece2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stderr] error: test failed, to rerun pass `--bin easy_rust1`
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5716f6d8ece2 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5716f6d8eb28 - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5716f6d8a0f9 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x5716f6d7321d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5716f6dc753c - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5716f6dc67ef - core::cell::panic_already_borrowed::do_panic::runtime::hd22481f34660fe59
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic.rs:173:21
[INFO] [stdout]   20:     0x5716f6dc67ba - core::cell::panic_already_borrowed::do_panic::hcc8be68ac2563e6b
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/intrinsics/mod.rs:2449:9
[INFO] [stdout]   21:     0x5716f6dc67ba - core::cell::panic_already_borrowed::h5e83b690f7c2879f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic.rs:178:9
[INFO] [stdout]   22:     0x5716f6d332c3 - core::cell::RefCell<T>::borrow_mut::h4f4f604b9c17145f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/cell.rs:1202:25
[INFO] [stdout]   23:     0x5716f6d329cd - easy_rust1::refcell::test_refcell::h3124bd525a85b918
[INFO] [stdout]                                at /opt/rustwide/workdir/src/refcell.rs:33:36
[INFO] [stdout]   24:     0x5716f6d32a97 - easy_rust1::refcell::test_refcell::{{closure}}::hb005f5a9726a6039
[INFO] [stdout]                                at /opt/rustwide/workdir/src/refcell.rs:12:18
[INFO] [stdout]   25:     0x5716f6d32da6 - core::ops::function::FnOnce::call_once::h3e7f8b215ddfddc7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5716f6d52ecb - core::ops::function::FnOnce::call_once::h0217b30cfdee2e67
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x5716f6d52ecb - test::__rust_begin_short_backtrace::h6d98714a1e28f556
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:663:18
[INFO] [stdout]   28:     0x5716f6d6685a - test::run_test_in_process::{{closure}}::he2c70d2634d3a3cc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:74
[INFO] [stdout]   29:     0x5716f6d6685a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40a0a825bcf17fdd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   30:     0x5716f6d6685a - std::panicking::catch_unwind::do_call::h6c8eb5dd6e7b5975
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x5716f6d6685a - std::panicking::catch_unwind::h55455eac2972ad1e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x5716f6d6685a - std::panic::catch_unwind::h0025465150a5e558
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x5716f6d6685a - test::run_test_in_process::hb61e682f9b630fbc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:27
[INFO] [stdout]   34:     0x5716f6d6685a - test::run_test::{{closure}}::hc2c2a7a38ab176e2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:607:43
[INFO] [stdout]   35:     0x5716f6d40af4 - test::run_test::{{closure}}::ha91867b85cd2a911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:637:41
[INFO] [stdout]   36:     0x5716f6d40af4 - std::sys::backtrace::__rust_begin_short_backtrace::ha00a9fe02049c339
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   37:     0x5716f6d44422 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd629fba9153dfb55
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   38:     0x5716f6d44422 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4189018816a5c5d9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   39:     0x5716f6d44422 - std::panicking::catch_unwind::do_call::hf9fcdbca3c2e9877
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   40:     0x5716f6d44422 - std::panicking::catch_unwind::h97b92d88631c7c64
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   41:     0x5716f6d44422 - std::panic::catch_unwind::ha77cdbb68e725e5e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x5716f6d44422 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h511f05bc1a132253
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   43:     0x5716f6d44422 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6b68b31e9b685cb8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x5716f6d8578f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   45:     0x5716f6d8578f - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   46:     0x7d201019eaa4 - <unknown>
[INFO] [stdout]   47:     0x7d201022ba64 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     refcell::test_refcell
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "999e5c827757939da0a9b1eda8b9e9be640abb6f0bc8a3cb7cfacdd854bea78e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "999e5c827757939da0a9b1eda8b9e9be640abb6f0bc8a3cb7cfacdd854bea78e", kill_on_drop: false }`
[INFO] [stdout] 999e5c827757939da0a9b1eda8b9e9be640abb6f0bc8a3cb7cfacdd854bea78e
