[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 master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[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 d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 385f1c725fc805e5a21f6d6ce075fd965d6f5ad01fcd0e82e5b2ff834db1a18b
[INFO] running `Command { std: "docker" "start" "-a" "385f1c725fc805e5a21f6d6ce075fd965d6f5ad01fcd0e82e5b2ff834db1a18b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "385f1c725fc805e5a21f6d6ce075fd965d6f5ad01fcd0e82e5b2ff834db1a18b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "385f1c725fc805e5a21f6d6ce075fd965d6f5ad01fcd0e82e5b2ff834db1a18b", kill_on_drop: false }`
[INFO] [stdout] 385f1c725fc805e5a21f6d6ce075fd965d6f5ad01fcd0e82e5b2ff834db1a18b
[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=forbid -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6401f4842bbf4579f837fc701e3b5a1866a6e36659413f27c11ce3d710f97a5
[INFO] running `Command { std: "docker" "start" "-a" "b6401f4842bbf4579f837fc701e3b5a1866a6e36659413f27c11ce3d710f97a5", 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)]` 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 27.40s
[INFO] running `Command { std: "docker" "inspect" "b6401f4842bbf4579f837fc701e3b5a1866a6e36659413f27c11ce3d710f97a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6401f4842bbf4579f837fc701e3b5a1866a6e36659413f27c11ce3d710f97a5", kill_on_drop: false }`
[INFO] [stdout] b6401f4842bbf4579f837fc701e3b5a1866a6e36659413f27c11ce3d710f97a5
[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=forbid -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed8f45af411cbebb055d0651f0a8caa2e73df0f8f146e4c2f391c5e3a2d3bd9f
[INFO] running `Command { std: "docker" "start" "-a" "ed8f45af411cbebb055d0651f0a8caa2e73df0f8f146e4c2f391c5e3a2d3bd9f", 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)]` 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)]` 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 0.62s
[INFO] running `Command { std: "docker" "inspect" "ed8f45af411cbebb055d0651f0a8caa2e73df0f8f146e4c2f391c5e3a2d3bd9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed8f45af411cbebb055d0651f0a8caa2e73df0f8f146e4c2f391c5e3a2d3bd9f", kill_on_drop: false }`
[INFO] [stdout] ed8f45af411cbebb055d0651f0a8caa2e73df0f8f146e4c2f391c5e3a2d3bd9f
[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=forbid -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9b272f7188a51ac52094fbf06d8b6762e7e63a5ad75996da87d1616a208ed1b
[INFO] running `Command { std: "docker" "start" "-a" "c9b272f7188a51ac52094fbf06d8b6762e7e63a5ad75996da87d1616a208ed1b", 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)]` 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)]` 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
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/easy_rust1-90dbfefced6d3a85)
[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' panicked at src/refcell.rs:33:36:
[INFO] [stdout] RefCell already borrowed
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57da634ad732 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x57da634ad732 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x57da634ad732 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x57da634ad732 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha499add612cccf8e
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x57da634d3253 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x57da634d3253 - core::fmt::write::hb10c956f5235c8a4
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x57da634aa913 - std::io::default_write_fmt::hdb7615052be2ba4d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x57da634aa913 - std::io::Write::write_fmt::he1bcd251ec6e4153
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x57da634ad582 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x57da634aec9c - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x57da634aeaf2 - std::panicking::default_hook::h7c46b44874fe5c9a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x57da63476bd4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h178a5fcedee41e2f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x57da63476bd4 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x57da634af67b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h13602080f5b63276
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x57da634af67b - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x57da634af44a - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x57da634adc29 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x57da634af0dd - __rustc[18fb429eef004894]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x57da634d1340 - core::panicking::panic_fmt::hd890aeb12c3a3fc3
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x57da634d7d43 - core::cell::panic_already_borrowed::do_panic::runtime::h5d4f876e8303ef67
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic.rs:218:21
[INFO] [stdout]   20:     0x57da634d0f1a - core::cell::panic_already_borrowed::do_panic::h6663482590ba6d34
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/intrinsics/mod.rs:2345:9
[INFO] [stdout]   21:     0x57da634d0f1a - core::cell::panic_already_borrowed::ha393f17ac19fd936
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic.rs:223:9
[INFO] [stdout]   22:     0x57da6343d0ac - core::cell::RefCell<T>::borrow_mut::h604fb62f49b4c55b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/cell.rs:1088:25
[INFO] [stdout]   23:     0x57da6343d0ac - easy_rust1::refcell::test_refcell::h0f95330578913993
[INFO] [stdout]                                at /opt/rustwide/workdir/src/refcell.rs:33:36
[INFO] [stdout]   24:     0x57da6343d0ac - easy_rust1::refcell::test_refcell::{{closure}}::h81d2d6982fdc7abf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/refcell.rs:12:18
[INFO] [stdout]   25:     0x57da6343d0ac - core::ops::function::FnOnce::call_once::h1568ede6545c8f97
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x57da6347c35b - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x57da6347c35b - test::__rust_begin_short_backtrace::h7dd7142bd62fa711
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18
[INFO] [stdout]   28:     0x57da6347b54e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74
[INFO] [stdout]   29:     0x57da6347b54e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   30:     0x57da6347b54e - std::panicking::catch_unwind::do_call::he308587d70ac34ba
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   31:     0x57da6347b54e - std::panicking::catch_unwind::h30dcba31973e8fb0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   32:     0x57da6347b54e - std::panic::catch_unwind::hfb68364e5621fbee
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x57da6347b54e - test::run_test_in_process::hcdcc2977903b998a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27
[INFO] [stdout]   34:     0x57da6347b54e - test::run_test::{{closure}}::h544a6550958c5d14
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43
[INFO] [stdout]   35:     0x57da6343f0c4 - test::run_test::{{closure}}::hb172e48ebe2b92c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41
[INFO] [stdout]   36:     0x57da6343f0c4 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   37:     0x57da63442a9a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   38:     0x57da63442a9a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   39:     0x57da63442a9a - std::panicking::catch_unwind::do_call::h052f373fb905fee0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   40:     0x57da63442a9a - std::panicking::catch_unwind::hb425d20c8ffb09c8
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   41:     0x57da63442a9a - std::panic::catch_unwind::ha0d5dfbf18fdeda5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x57da63442a9a - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   43:     0x57da63442a9a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x57da634b25d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h47377e27fb938a26
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   45:     0x57da634b25d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h72f1fe5d095abf57
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   46:     0x57da634b25d7 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   47:     0x79c337c34aa4 - <unknown>
[INFO] [stdout]   48:     0x79c337cc1a34 - clone
[INFO] [stdout]   49:                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] [stderr] error: test failed, to rerun pass `--bin easy_rust1`
[INFO] running `Command { std: "docker" "inspect" "c9b272f7188a51ac52094fbf06d8b6762e7e63a5ad75996da87d1616a208ed1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b272f7188a51ac52094fbf06d8b6762e7e63a5ad75996da87d1616a208ed1b", kill_on_drop: false }`
[INFO] [stdout] c9b272f7188a51ac52094fbf06d8b6762e7e63a5ad75996da87d1616a208ed1b
