[INFO] fetching crate sbnf 0.4.0...
[INFO] testing sbnf-0.4.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate sbnf 0.4.0 into /workspace/builds/worker-110/source
[INFO] validating manifest of crates.io crate sbnf 0.4.0 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 crates.io crate sbnf 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sbnf 0.4.0
[INFO] tweaked toml for crates.io crate sbnf 0.4.0 written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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] e5752862994e1162b0bc627089bacc64cdba448a54b15b35356c5089e142dff7
[INFO] running `Command { std: "docker" "start" "-a" "e5752862994e1162b0bc627089bacc64cdba448a54b15b35356c5089e142dff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5752862994e1162b0bc627089bacc64cdba448a54b15b35356c5089e142dff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5752862994e1162b0bc627089bacc64cdba448a54b15b35356c5089e142dff7", kill_on_drop: false }`
[INFO] [stdout] e5752862994e1162b0bc627089bacc64cdba448a54b15b35356c5089e142dff7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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] 3a6e056c4515852670d44caf220cb74eb5ad3c2476f062240eb4e088e2b060ad
[INFO] running `Command { std: "docker" "start" "-a" "3a6e056c4515852670d44caf220cb74eb5ad3c2476f062240eb4e088e2b060ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling sbnf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.47s
[INFO] running `Command { std: "docker" "inspect" "3a6e056c4515852670d44caf220cb74eb5ad3c2476f062240eb4e088e2b060ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6e056c4515852670d44caf220cb74eb5ad3c2476f062240eb4e088e2b060ad", kill_on_drop: false }`
[INFO] [stdout] 3a6e056c4515852670d44caf220cb74eb5ad3c2476f062240eb4e088e2b060ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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] c0a9248b5d2c71f795593dc2a66c2cc09da533a9ad71123e12ac54503f3914c8
[INFO] running `Command { std: "docker" "start" "-a" "c0a9248b5d2c71f795593dc2a66c2cc09da533a9ad71123e12ac54503f3914c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling sbnf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]     --> src/compiler/codegen.rs:1388:9
[INFO] [stdout]      |
[INFO] [stdout] 1388 |         Variable(&'static str),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `variable`
[INFO] [stdout]     --> src/compiler/codegen.rs:1437:8
[INFO] [stdout]      |
[INFO] [stdout] 1437 |     fn variable(s: &'static str) -> TestExpression {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `m_var`
[INFO] [stdout]     --> src/compiler/codegen.rs:1481:8
[INFO] [stdout]      |
[INFO] [stdout] 1481 |     fn m_var(s: &'static str, r: &[TestExpression]) -> TestMatch {
[INFO] [stdout]      |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "c0a9248b5d2c71f795593dc2a66c2cc09da533a9ad71123e12ac54503f3914c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a9248b5d2c71f795593dc2a66c2cc09da533a9ad71123e12ac54503f3914c8", kill_on_drop: false }`
[INFO] [stdout] c0a9248b5d2c71f795593dc2a66c2cc09da533a9ad71123e12ac54503f3914c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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] 94a0a4b1d850af936fde739ed7cca5a4c60a8e0d05357773e09df88f376e020e
[INFO] running `Command { std: "docker" "start" "-a" "94a0a4b1d850af936fde739ed7cca5a4c60a8e0d05357773e09df88f376e020e", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]     --> src/compiler/codegen.rs:1388:9
[INFO] [stderr]      |
[INFO] [stderr] 1388 |         Variable(&'static str),
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `variable`
[INFO] [stderr]     --> src/compiler/codegen.rs:1437:8
[INFO] [stderr]      |
[INFO] [stderr] 1437 |     fn variable(s: &'static str) -> TestExpression {
[INFO] [stderr]      |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `m_var`
[INFO] [stderr]     --> src/compiler/codegen.rs:1481:8
[INFO] [stderr]      |
[INFO] [stderr] 1481 |     fn m_var(s: &'static str, r: &[TestExpression]) -> TestMatch {
[INFO] [stderr]      |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sbnf-da81f9ab960f27df)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test compiler::codegen::tests::collect_alternation ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_concat ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_optional ... ok
[INFO] [stdout] test sbnf::tests::parse_empty ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_passive ... ok
[INFO] [stdout] test compiler::tests::compile_syntax_parameters ... ok
[INFO] [stdout] test compiler::tests::compile_simple_repetition ... ok
[INFO] [stdout] test compiler::tests::compile_simple_branch ... ok
[INFO] [stdout] test sbnf::tests::parse_headers ... ok
[INFO] [stdout] test sbnf::tests::parse_terminals ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_repetition ... ok
[INFO] [stdout] test sbnf::tests::parse_rules ... ok
[INFO] [stdout] test sbnf::tests::parse_syntax_parameters ... ok
[INFO] [stdout] test sublime_syntax::tests::serialize_contexts ... ok
[INFO] [stdout] test sublime_syntax::tests::serialize_empty_syntax ... ok
[INFO] [stdout] test sublime_syntax::tests::serialize_variables ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/syntax_tests.rs (/opt/rustwide/target/debug/deps/syntax_tests-a301af46844a7a01)
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', tests/syntax_tests.rs:19:58
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x558adf8ca5c0 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x558adf8ca5c0 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x558adf8ca5c0 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x558adf8ca5c0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x558adf8e8eac - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]    5:     0x558adf8c8155 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]    6:     0x558adf8cc6bb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x558adf8cc6bb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x558adf8cc6bb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x558adf8cc191 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x558adf8ccd84 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]   11:     0x558adf8cc867 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stderr]   12:     0x558adf8caabc - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   13:     0x558adf8cc7c9 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stderr]   14:     0x558adf8a7301 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stderr]   15:     0x558adf8a7393 - core::result::unwrap_failed::h6160d2b4bfbb0e87
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:1355:5
[INFO] [stderr]   16:     0x558adf8af687 - core::result::Result<T,E>::unwrap::h0c02f0de080c9e19
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:1037:23
[INFO] [stderr]   17:     0x558adf8acfd2 - syntax_tests::main::h3cb83b29d3dd77a0
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/syntax_tests.rs:19:5
[INFO] [stderr]   18:     0x558adf8b43fb - core::ops::function::FnOnce::call_once::h55963ab2d70f1946
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]   19:     0x558adf8ac0ce - std::sys_common::backtrace::__rust_begin_short_backtrace::h3e0117408660c2a3
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]   20:     0x558adf8b3601 - std::rt::lang_start::{{closure}}::h36d90cc3767a00d3
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]   21:     0x558adf8cd289 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]   22:     0x558adf8cd289 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]   23:     0x558adf8cd289 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]   24:     0x558adf8cd289 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]   25:     0x558adf8cd289 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]   26:     0x558adf8b35e0 - std::rt::lang_start::hb92782a798b1c99d
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]   27:     0x558adf8af01c - main
[INFO] [stderr]   28:     0x7fc3890a10b3 - __libc_start_main
[INFO] [stderr]   29:     0x558adf8a7a5e - _start
[INFO] [stderr]   30:                0x0 - <unknown>
[INFO] [stderr] error: test failed, to rerun pass '--test syntax_tests'
[INFO] running `Command { std: "docker" "inspect" "94a0a4b1d850af936fde739ed7cca5a4c60a8e0d05357773e09df88f376e020e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94a0a4b1d850af936fde739ed7cca5a4c60a8e0d05357773e09df88f376e020e", kill_on_drop: false }`
[INFO] [stdout] 94a0a4b1d850af936fde739ed7cca5a4c60a8e0d05357773e09df88f376e020e
