[INFO] cloning repository https://github.com/Vinatorul/RustyChecker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vinatorul/RustyChecker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVinatorul%2FRustyChecker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVinatorul%2FRustyChecker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c466e7a1e8b2bd9c5565c1953970ec5249d55fc
[INFO] testing Vinatorul/RustyChecker against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVinatorul%2FRustyChecker" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vinatorul/RustyChecker on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vinatorul/RustyChecker
[INFO] finished tweaking git repo https://github.com/Vinatorul/RustyChecker
[INFO] tweaked toml for git repo https://github.com/Vinatorul/RustyChecker written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Vinatorul/RustyChecker 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 962b67c65961a70fb70681c3b70e29ea135061fc5a785e23bd739289a595e4b2
[INFO] running `Command { std: "docker" "start" "-a" "962b67c65961a70fb70681c3b70e29ea135061fc5a785e23bd739289a595e4b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "962b67c65961a70fb70681c3b70e29ea135061fc5a785e23bd739289a595e4b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "962b67c65961a70fb70681c3b70e29ea135061fc5a785e23bd739289a595e4b2", kill_on_drop: false }`
[INFO] [stdout] 962b67c65961a70fb70681c3b70e29ea135061fc5a785e23bd739289a595e4b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7790637f3a2b6959619666aa0ccbdca690bc1ff9a97f05225458d87afd2e932b
[INFO] running `Command { std: "docker" "start" "-a" "7790637f3a2b6959619666aa0ccbdca690bc1ff9a97f05225458d87afd2e932b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `ProblemError` is more private than the item `Problem::run`
[INFO] [stdout]    --> src/problem.rs:103:2
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Problem::run` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ProblemError` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/problem.rs:28:1
[INFO] [stdout]     |
[INFO] [stdout] 28  | struct ProblemError {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROBLEMS_DIR` is never used
[INFO] [stdout]   --> src/problem.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const PROBLEMS_DIR: &'static str = "problems";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INPUT_DIR` is never used
[INFO] [stdout]   --> src/problem.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const INPUT_DIR: &'static str = "input";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OUTPUT_DIR` is never used
[INFO] [stdout]   --> src/problem.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const OUTPUT_DIR: &'static str = "output";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem` is never constructed
[INFO] [stdout]   --> src/problem.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Problem {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/problem.rs:21:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum State {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ProblemError` is never constructed
[INFO] [stdout]   --> src/problem.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct ProblemError {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, `run_test`, and `make_error` are never used
[INFO] [stdout]    --> src/problem.rs:68:9
[INFO] [stdout]     |
[INFO] [stdout] 67  | impl Problem {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 68  |     pub fn new(str_id: String) -> Problem {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     fn run_test(&self, test_no: i32) -> Result<(), ProblemError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn make_error(&self, reason: &'static str, sys_part: String, test_no: i32) -> Result<(), ProblemError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "7790637f3a2b6959619666aa0ccbdca690bc1ff9a97f05225458d87afd2e932b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7790637f3a2b6959619666aa0ccbdca690bc1ff9a97f05225458d87afd2e932b", kill_on_drop: false }`
[INFO] [stdout] 7790637f3a2b6959619666aa0ccbdca690bc1ff9a97f05225458d87afd2e932b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da346399d9db0b427c4daeff8910f9e27f36c63ce5b3ebf4a229c9f56818f730
[INFO] running `Command { std: "docker" "start" "-a" "da346399d9db0b427c4daeff8910f9e27f36c63ce5b3ebf4a229c9f56818f730", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `ProblemError` is more private than the item `Problem::run`
[INFO] [stdout]    --> src/problem.rs:103:2
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Problem::run` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ProblemError` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/problem.rs:28:1
[INFO] [stdout]     |
[INFO] [stdout] 28  | struct ProblemError {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/problem.rs:188:10
[INFO] [stdout]     |
[INFO] [stdout] 188 |         panic!(result.err().unwrap().to_string());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 188 |         panic!("{}", result.err().unwrap().to_string());
[INFO] [stdout]     |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "da346399d9db0b427c4daeff8910f9e27f36c63ce5b3ebf4a229c9f56818f730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da346399d9db0b427c4daeff8910f9e27f36c63ce5b3ebf4a229c9f56818f730", kill_on_drop: false }`
[INFO] [stdout] da346399d9db0b427c4daeff8910f9e27f36c63ce5b3ebf4a229c9f56818f730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bce5869455d893f3f9a3bd9f7769c4b76337f7c3ee53c9b8072da340e7908310
[INFO] running `Command { std: "docker" "start" "-a" "bce5869455d893f3f9a3bd9f7769c4b76337f7c3ee53c9b8072da340e7908310", kill_on_drop: false }`
[INFO] [stderr] warning: type `ProblemError` is more private than the item `Problem::run`
[INFO] [stderr]    --> src/problem.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Problem::run` is reachable at visibility `pub(crate)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `ProblemError` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/problem.rs:28:1
[INFO] [stderr]     |
[INFO] [stderr] 28  | struct ProblemError {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/problem.rs:188:10
[INFO] [stderr]     |
[INFO] [stderr] 188 |         panic!(result.err().unwrap().to_string());
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 188 |         panic!("{}", result.err().unwrap().to_string());
[INFO] [stderr]     |                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_checker` (bin "rusty_checker" test) generated 2 warnings (run `cargo fix --bin "rusty_checker" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rusty_checker-fc1e604c7348af15)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test problem::read_test ... FAILED
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rusty_checker`
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- problem::read_test stdout ----
[INFO] [stdout] thread 'problem::read_test' panicked at src/problem.rs:188:9:
[INFO] [stdout] rustc failed to build problem on problem test: error: couldn't create a temp dir: Read-only file system (os error 30) at path "/opt/rustwide/workdir/problems/test/rmetaS4JZOU"
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5643769129f5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x5643769129f5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5643769129f5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5643769129f5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56437693942b - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x56437693942b - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x56437691007f - std::io::Write::write_fmt::h8d0c47c662cad79c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x5643769127ce - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5643769127ce - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5643769141f9 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x564376913ebe - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:295:9
[INFO] [stdout]   11:     0x5643768e49ba - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::he5eacdef44c8728f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   12:     0x5643768e49ba - test::test_main::{{closure}}::h0ec9aed229e79095
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x5643769147fb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcbd0d80e1ad4e4f9
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   14:     0x5643769147fb - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13
[INFO] [stdout]   15:     0x5643768ade2f - std::panicking::begin_panic::{{closure}}::h89b060308166eebb
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:694:9
[INFO] [stdout]   16:     0x5643768adae6 - std::sys_common::backtrace::__rust_end_short_backtrace::hbf2ed074bba55997
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x5643768addd0 - std::panicking::begin_panic::h3e6957c5af536cde
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:693:12
[INFO] [stdout]   18:     0x5643768a605c - rusty_checker::problem::read_test::h763a9139a4adf7ce
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem.rs:188:3
[INFO] [stdout]   19:     0x5643768a5a27 - rusty_checker::problem::read_test::{{closure}}::h9bc87d861b909c7b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem.rs:180:15
[INFO] [stdout]   20:     0x5643768ae536 - core::ops::function::FnOnce::call_once::hd18ae206d73b914c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x5643768e939b - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x5643768e939b - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18
[INFO] [stdout]   23:     0x5643768e8aa1 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60
[INFO] [stdout]   24:     0x5643768e8aa1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   25:     0x5643768e8aa1 - std::panicking::try::do_call::h1bf2463bccd4b28c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   26:     0x5643768e8aa1 - std::panicking::try::hd6d4808c9fab4fa5
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   27:     0x5643768e8aa1 - std::panic::catch_unwind::hd5641d97d123f9f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   28:     0x5643768e8aa1 - test::run_test_in_process::hc273b71c8b878a4c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27
[INFO] [stdout]   29:     0x5643768e8aa1 - test::run_test::{{closure}}::h6838df834eb8467e
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43
[INFO] [stdout]   30:     0x5643768b1464 - test::run_test::{{closure}}::h608b98ecff5665fb
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41
[INFO] [stdout]   31:     0x5643768b1464 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   32:     0x5643768b5e92 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17
[INFO] [stdout]   33:     0x5643768b5e92 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   34:     0x5643768b5e92 - std::panicking::try::do_call::h4f1a44bd81423be1
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   35:     0x5643768b5e92 - std::panicking::try::h5e02afcb81dcd361
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   36:     0x5643768b5e92 - std::panic::catch_unwind::h022f75775bfd8c45
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   37:     0x5643768b5e92 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30
[INFO] [stdout]   38:     0x5643768b5e92 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   39:     0x564376918bcb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7a343dc551c06baa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   40:     0x564376918bcb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h30b8111cbaa644f3
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   41:     0x564376918bcb - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   42:     0x7fbf64ca7ac3 - <unknown>
[INFO] [stdout]   43:     0x7fbf64d38a04 - __clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     problem::read_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bce5869455d893f3f9a3bd9f7769c4b76337f7c3ee53c9b8072da340e7908310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce5869455d893f3f9a3bd9f7769c4b76337f7c3ee53c9b8072da340e7908310", kill_on_drop: false }`
[INFO] [stdout] bce5869455d893f3f9a3bd9f7769c4b76337f7c3ee53c9b8072da340e7908310
[INFO] testing Vinatorul/RustyChecker against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVinatorul%2FRustyChecker" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vinatorul/RustyChecker on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vinatorul/RustyChecker
[INFO] finished tweaking git repo https://github.com/Vinatorul/RustyChecker
[INFO] tweaked toml for git repo https://github.com/Vinatorul/RustyChecker written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Vinatorul/RustyChecker 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b096e492deecd4d101615e917016def91f5a3eb42aa7c15b8963954572ebc2
[INFO] running `Command { std: "docker" "start" "-a" "71b096e492deecd4d101615e917016def91f5a3eb42aa7c15b8963954572ebc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b096e492deecd4d101615e917016def91f5a3eb42aa7c15b8963954572ebc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b096e492deecd4d101615e917016def91f5a3eb42aa7c15b8963954572ebc2", kill_on_drop: false }`
[INFO] [stdout] 71b096e492deecd4d101615e917016def91f5a3eb42aa7c15b8963954572ebc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be420524aa2daf129a8f3c3c97836ebb08b6ae180235ce9519cd6a3842e47aab
[INFO] running `Command { std: "docker" "start" "-a" "be420524aa2daf129a8f3c3c97836ebb08b6ae180235ce9519cd6a3842e47aab", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `ProblemError` is more private than the item `Problem::run`
[INFO] [stdout]    --> src/problem.rs:103:2
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Problem::run` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ProblemError` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/problem.rs:28:1
[INFO] [stdout]     |
[INFO] [stdout] 28  | struct ProblemError {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROBLEMS_DIR` is never used
[INFO] [stdout]   --> src/problem.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const PROBLEMS_DIR: &'static str = "problems";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INPUT_DIR` is never used
[INFO] [stdout]   --> src/problem.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const INPUT_DIR: &'static str = "input";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OUTPUT_DIR` is never used
[INFO] [stdout]   --> src/problem.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const OUTPUT_DIR: &'static str = "output";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem` is never constructed
[INFO] [stdout]   --> src/problem.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Problem {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/problem.rs:21:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum State {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ProblemError` is never constructed
[INFO] [stdout]   --> src/problem.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct ProblemError {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, `run_test`, and `make_error` are never used
[INFO] [stdout]    --> src/problem.rs:68:9
[INFO] [stdout]     |
[INFO] [stdout] 67  | impl Problem {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 68  |     pub fn new(str_id: String) -> Problem {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     fn run_test(&self, test_no: i32) -> Result<(), ProblemError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn make_error(&self, reason: &'static str, sys_part: String, test_no: i32) -> Result<(), ProblemError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "be420524aa2daf129a8f3c3c97836ebb08b6ae180235ce9519cd6a3842e47aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be420524aa2daf129a8f3c3c97836ebb08b6ae180235ce9519cd6a3842e47aab", kill_on_drop: false }`
[INFO] [stdout] be420524aa2daf129a8f3c3c97836ebb08b6ae180235ce9519cd6a3842e47aab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3750475ed4f02d0e0429b9b8230138bd5842eb2904e3367be5808d186cf0c024
[INFO] running `Command { std: "docker" "start" "-a" "3750475ed4f02d0e0429b9b8230138bd5842eb2904e3367be5808d186cf0c024", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `ProblemError` is more private than the item `Problem::run`
[INFO] [stdout]    --> src/problem.rs:103:2
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Problem::run` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ProblemError` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/problem.rs:28:1
[INFO] [stdout]     |
[INFO] [stdout] 28  | struct ProblemError {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/problem.rs:188:10
[INFO] [stdout]     |
[INFO] [stdout] 188 |         panic!(result.err().unwrap().to_string());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 188 |         panic!("{}", result.err().unwrap().to_string());
[INFO] [stdout]     |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "3750475ed4f02d0e0429b9b8230138bd5842eb2904e3367be5808d186cf0c024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3750475ed4f02d0e0429b9b8230138bd5842eb2904e3367be5808d186cf0c024", kill_on_drop: false }`
[INFO] [stdout] 3750475ed4f02d0e0429b9b8230138bd5842eb2904e3367be5808d186cf0c024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c206ecde07d0fca210713c04a1ca15260d8f373bfdf5ccd410ec890e2c43bd5a
[INFO] running `Command { std: "docker" "start" "-a" "c206ecde07d0fca210713c04a1ca15260d8f373bfdf5ccd410ec890e2c43bd5a", kill_on_drop: false }`
[INFO] [stderr] warning: type `ProblemError` is more private than the item `Problem::run`
[INFO] [stderr]    --> src/problem.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Problem::run` is reachable at visibility `pub(crate)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `ProblemError` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/problem.rs:28:1
[INFO] [stderr]     |
[INFO] [stderr] 28  | struct ProblemError {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/problem.rs:188:10
[INFO] [stderr]     |
[INFO] [stderr] 188 |         panic!(result.err().unwrap().to_string());
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 188 |         panic!("{}", result.err().unwrap().to_string());
[INFO] [stderr]     |                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_checker` (bin "rusty_checker" test) generated 2 warnings (run `cargo fix --bin "rusty_checker" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rusty_checker-fc1e604c7348af15)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test problem::read_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- problem::read_test stdout ----
[INFO] [stdout] thread 'problem::read_test' panicked at src/problem.rs:188:9:
[INFO] [stdout] rustc failed to build problem on problem test: error: couldn't create a temp dir: Read-only file system (os error 30) at path "/opt/rustwide/workdir/problems/test/rmetaMLAmpZ"
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56403efc8a85 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x56403efc8a85 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56403efc8a85 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x56403efc8a85 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56403efef45b - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x56403efef45b - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x56403efc61bf - std::io::Write::write_fmt::hea6336dbf2fa00b8
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x56403efc885e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x56403efc885e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x56403efca1c9 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x56403efc9f1c - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:295:9
[INFO] [stdout]   11:     0x56403ef9aa7f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd874405dcbd1d3ed
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   12:     0x56403ef9aa7f - test::test_main::{{closure}}::h4f26a9df34a84b94
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x56403efca7cb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h00e96d9c62aa9a12
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   14:     0x56403efca7cb - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:799:13
[INFO] [stdout]   15:     0x56403ef5545f - std::panicking::begin_panic::{{closure}}::h7c68c30413371ce7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:694:9
[INFO] [stdout]   16:     0x56403ef64446 - std::sys_common::backtrace::__rust_end_short_backtrace::h8a03f5b8268a9905
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x56403ef55400 - std::panicking::begin_panic::h8eb147bdc137d238
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:693:12
[INFO] [stdout]   18:     0x56403ef5d02c - rusty_checker::problem::read_test::h0948b23557b6ea66
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem.rs:188:3
[INFO] [stdout]   19:     0x56403ef5c9f7 - rusty_checker::problem::read_test::{{closure}}::h7b19500a5bda838f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem.rs:180:15
[INFO] [stdout]   20:     0x56403ef55706 - core::ops::function::FnOnce::call_once::h7593e9a48fb9b25a
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   21:     0x56403ef9f39b - core::ops::function::FnOnce::call_once::h18c6bf92212b87a4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x56403ef9f39b - test::__rust_begin_short_backtrace::hdcf0edcfa9080086
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:625:18
[INFO] [stdout]   23:     0x56403ef9ea61 - test::run_test_in_process::{{closure}}::heac2c4eb375d2d10
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:648:60
[INFO] [stdout]   24:     0x56403ef9ea61 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0289bafc8a1cc004
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   25:     0x56403ef9ea61 - std::panicking::try::do_call::h5e158f1ad8a5f983
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   26:     0x56403ef9ea61 - std::panicking::try::hea3411d60321c4de
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   27:     0x56403ef9ea61 - std::panic::catch_unwind::hafb7bb18bc47bbc7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   28:     0x56403ef9ea61 - test::run_test_in_process::h74dd138dc7762d99
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:648:27
[INFO] [stdout]   29:     0x56403ef9ea61 - test::run_test::{{closure}}::h6b390822e63606cf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:569:43
[INFO] [stdout]   30:     0x56403ef67434 - test::run_test::{{closure}}::h6e11dba8131d354b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:599:41
[INFO] [stdout]   31:     0x56403ef67434 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha71b3541b59bdbbb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   32:     0x56403ef6bf02 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hef92127c5ef9e53c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/thread/mod.rs:542:17
[INFO] [stdout]   33:     0x56403ef6bf02 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h859c109f9d11c92b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   34:     0x56403ef6bf02 - std::panicking::try::do_call::hbf534c458cd858f0
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   35:     0x56403ef6bf02 - std::panicking::try::h65c18365a7b9ad90
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   36:     0x56403ef6bf02 - std::panic::catch_unwind::h21b25d4c69478c39
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   37:     0x56403ef6bf02 - std::thread::Builder::spawn_unchecked_::{{closure}}::h23335f620275a9bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/thread/mod.rs:541:30
[INFO] [stdout]   38:     0x56403ef6bf02 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb491dc55513e9b7c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   39:     0x56403efceb8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h41b39260afcffdc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   40:     0x56403efceb8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6694c8dc6dd010c4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   41:     0x56403efceb8b - std::sys::pal::unix::thread::Thread::new::thread_start::hf16038e1c8e19c99
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   42:     0x7f00daf88ac3 - <unknown>
[INFO] [stdout]   43:     0x7f00db019a04 - __clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     problem::read_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 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 rusty_checker`
[INFO] running `Command { std: "docker" "inspect" "c206ecde07d0fca210713c04a1ca15260d8f373bfdf5ccd410ec890e2c43bd5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c206ecde07d0fca210713c04a1ca15260d8f373bfdf5ccd410ec890e2c43bd5a", kill_on_drop: false }`
[INFO] [stdout] c206ecde07d0fca210713c04a1ca15260d8f373bfdf5ccd410ec890e2c43bd5a
