[INFO] cloning repository https://github.com/rchaser53/at-coder-localplayground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rchaser53/at-coder-localplayground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fat-coder-localplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fat-coder-localplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5aee07644fc8ebfefedc4d6fa8be36917f107269
[INFO] testing rchaser53/at-coder-localplayground against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Fat-coder-localplayground" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/at-coder-localplayground on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rchaser53/at-coder-localplayground
[INFO] finished tweaking git repo https://github.com/rchaser53/at-coder-localplayground
[INFO] tweaked toml for git repo https://github.com/rchaser53/at-coder-localplayground written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/rchaser53/at-coder-localplayground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cli v0.6.3
[INFO] [stderr]   Downloaded environment v0.1.1
[INFO] [stderr]   Downloaded backtrace v0.3.58
[INFO] [stderr]   Downloaded proconio v0.3.8
[INFO] [stderr]   Downloaded permutohedron v0.2.4
[INFO] [stderr]   Downloaded superslice v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cafe0f29c7725f4c4746c1dd6885ecbae535289bf58fb41500438034afec60f
[INFO] running `Command { std: "docker" "start" "-a" "1cafe0f29c7725f4c4746c1dd6885ecbae535289bf58fb41500438034afec60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cafe0f29c7725f4c4746c1dd6885ecbae535289bf58fb41500438034afec60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cafe0f29c7725f4c4746c1dd6885ecbae535289bf58fb41500438034afec60f", kill_on_drop: false }`
[INFO] [stdout] 1cafe0f29c7725f4c4746c1dd6885ecbae535289bf58fb41500438034afec60f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f3c12fbeeb1516082960cfd8b92d212d9e1ae54b8646e5997c67dd5d64a05d8
[INFO] running `Command { std: "docker" "start" "-a" "6f3c12fbeeb1516082960cfd8b92d212d9e1ae54b8646e5997c67dd5d64a05d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling environment v0.1.1
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling proconio v0.3.8
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling simba v0.4.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling assert_cli v0.6.3
[INFO] [stderr]    Compiling nalgebra v0.26.2
[INFO] [stderr]    Compiling at-coder-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.04s
[INFO] running `Command { std: "docker" "inspect" "6f3c12fbeeb1516082960cfd8b92d212d9e1ae54b8646e5997c67dd5d64a05d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3c12fbeeb1516082960cfd8b92d212d9e1ae54b8646e5997c67dd5d64a05d8", kill_on_drop: false }`
[INFO] [stdout] 6f3c12fbeeb1516082960cfd8b92d212d9e1ae54b8646e5997c67dd5d64a05d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aabcd1e6679128a988ee167afcfa8837b3ec7ef941b601a70603ccf9fc79f33
[INFO] running `Command { std: "docker" "start" "-a" "2aabcd1e6679128a988ee167afcfa8837b3ec7ef941b601a70603ccf9fc79f33", kill_on_drop: false }`
[INFO] [stderr]    Compiling at-coder-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> tests/solutions/a.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     n:usize,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proconio-0.3.8/src/lib.rs:579:22
[INFO] [stdout]     |
[INFO] [stdout] 579 |         let $($mut)* $var = $crate::read_value!(@source [$source] @kind [$($kind)*]);
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> tests/solutions/c.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 |       h:usize,
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> tests/solutions/c.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |       w:usize,
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> tests/solutions/a.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     n:usize,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proconio-0.3.8/src/lib.rs:579:22
[INFO] [stdout]     |
[INFO] [stdout] 579 |         let $($mut)* $var = $crate::read_value!(@source [$source] @kind [$($kind)*]);
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> tests/solutions/c.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 |       h:usize,
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> tests/solutions/c.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |       w:usize,
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> tests/solutions/a.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     n:usize,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proconio-0.3.8/src/lib.rs:579:22
[INFO] [stdout]     |
[INFO] [stdout] 579 |         let $($mut)* $var = $crate::read_value!(@source [$source] @kind [$($kind)*]);
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> tests/solutions/c.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 |       h:usize,
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> tests/solutions/c.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |       w:usize,
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "2aabcd1e6679128a988ee167afcfa8837b3ec7ef941b601a70603ccf9fc79f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aabcd1e6679128a988ee167afcfa8837b3ec7ef941b601a70603ccf9fc79f33", kill_on_drop: false }`
[INFO] [stdout] 2aabcd1e6679128a988ee167afcfa8837b3ec7ef941b601a70603ccf9fc79f33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] efd42c559c1b8332bdcae6f7a902440b5374a1856ed80894d6982ffd9d8e75b3
[INFO] running `Command { std: "docker" "start" "-a" "efd42c559c1b8332bdcae6f7a902440b5374a1856ed80894d6982ffd9d8e75b3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> tests/solutions/a.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     n:usize,
[INFO] [stderr]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proconio-0.3.8/src/lib.rs:579:22
[INFO] [stderr]     |
[INFO] [stderr] 579 |         let $($mut)* $var = $crate::read_value!(@source [$source] @kind [$($kind)*]);
[INFO] [stderr]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]   --> tests/solutions/c.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |       h:usize,
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> tests/solutions/c.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |       w:usize,
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> tests/solutions/a.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     n:usize,
[INFO] [stderr]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proconio-0.3.8/src/lib.rs:579:22
[INFO] [stderr]     |
[INFO] [stderr] 579 |         let $($mut)* $var = $crate::read_value!(@source [$source] @kind [$($kind)*]);
[INFO] [stderr]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]   --> tests/solutions/c.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |       h:usize,
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> tests/solutions/c.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |       w:usize,
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> tests/solutions/a.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     n:usize,
[INFO] [stderr]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proconio-0.3.8/src/lib.rs:579:22
[INFO] [stderr]     |
[INFO] [stderr] 579 |         let $($mut)* $var = $crate::read_value!(@source [$source] @kind [$($kind)*]);
[INFO] [stderr]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]   --> tests/solutions/c.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |       h:usize,
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> tests/solutions/c.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |       w:usize,
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/at_coder_playground-89c841bd0a3b7f25)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/a.rs (/opt/rustwide/target/debug/deps/a-97502b389404cec8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test a ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- a stdout ----
[INFO] [stdout] 
[INFO] [stdout] ============================================
[INFO] [stdout] 
[INFO] [stdout] ============================================
[INFO] [stdout] 
[INFO] [stdout] ============================================
[INFO] [stdout] 
[INFO] [stdout] ============================================
[INFO] [stdout] thread 'a' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', tests/utils/mod.rs:54:46
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55878fc83450 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55878fc83450 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55878fc83450 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55878fc83450 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55878fca5c7c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x55878fc801e5 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x55878fc855bb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55878fc855bb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55878fc855bb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55878fc850cc - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55878fc85c84 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x55878fc85767 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x55878fc8394c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55878fc856c9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x55878fc1a651 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55878fc1a743 - core::result::unwrap_failed::h6160d2b4bfbb0e87
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x55878fc2740e - core::result::Result<T,E>::unwrap::h43a441723a9800be
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x55878fc1f53f - a::utils::read_file::h1f8cc0e81a09be34
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/mod.rs:54:20
[INFO] [stdout]   18:     0x55878fc29261 - a::a::h768d1fb8840d4651
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/a.rs:35:5
[INFO] [stdout]   19:     0x55878fc2898a - a::a::{{closure}}::h29d4ad69c737e96b
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/a.rs:13:1
[INFO] [stdout]   20:     0x55878fc2485e - core::ops::function::FnOnce::call_once::h981d384196da4860
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x55878fc51443 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x55878fc51443 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   23:     0x55878fc4ff00 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   24:     0x55878fc4ff00 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   25:     0x55878fc4ff00 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   26:     0x55878fc4ff00 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   27:     0x55878fc4ff00 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   28:     0x55878fc4ff00 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   29:     0x55878fc4ff00 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   30:     0x55878fc295b2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   31:     0x55878fc295b2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   32:     0x55878fc2d168 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   33:     0x55878fc2d168 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   34:     0x55878fc2d168 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   35:     0x55878fc2d168 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   36:     0x55878fc2d168 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   37:     0x55878fc2d168 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   38:     0x55878fc2d168 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   39:     0x55878fc8a777 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x55878fc8a777 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x55878fc8a777 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   42:     0x7f56eb30c609 - start_thread
[INFO] [stdout]   43:     0x7f56eb0de293 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     a
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--test a'
[INFO] running `Command { std: "docker" "inspect" "efd42c559c1b8332bdcae6f7a902440b5374a1856ed80894d6982ffd9d8e75b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd42c559c1b8332bdcae6f7a902440b5374a1856ed80894d6982ffd9d8e75b3", kill_on_drop: false }`
[INFO] [stdout] efd42c559c1b8332bdcae6f7a902440b5374a1856ed80894d6982ffd9d8e75b3
