[INFO] fetching crate sbnf 0.4.0...
[INFO] testing sbnf-0.4.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate sbnf 0.4.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate sbnf 0.4.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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" "+beta-2021-08-01" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c451b148ac2010a2d6022322fdd569aa3159ecff78cef4f5d556d9a8de40c5c
[INFO] running `Command { std: "docker" "start" "-a" "4c451b148ac2010a2d6022322fdd569aa3159ecff78cef4f5d556d9a8de40c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c451b148ac2010a2d6022322fdd569aa3159ecff78cef4f5d556d9a8de40c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c451b148ac2010a2d6022322fdd569aa3159ecff78cef4f5d556d9a8de40c5c", kill_on_drop: false }`
[INFO] [stdout] 4c451b148ac2010a2d6022322fdd569aa3159ecff78cef4f5d556d9a8de40c5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be6af5e66b2382da144390294bf47077a91c5946dfbbecabeda202172a682930
[INFO] running `Command { std: "docker" "start" "-a" "be6af5e66b2382da144390294bf47077a91c5946dfbbecabeda202172a682930", kill_on_drop: false }`
[INFO] [stderr]    Compiling sbnf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.22s
[INFO] running `Command { std: "docker" "inspect" "be6af5e66b2382da144390294bf47077a91c5946dfbbecabeda202172a682930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6af5e66b2382da144390294bf47077a91c5946dfbbecabeda202172a682930", kill_on_drop: false }`
[INFO] [stdout] be6af5e66b2382da144390294bf47077a91c5946dfbbecabeda202172a682930
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 073cfafbb504c523511c129421dee2786b2cbf2258d7529d6875e8844b37b5ec
[INFO] running `Command { std: "docker" "start" "-a" "073cfafbb504c523511c129421dee2786b2cbf2258d7529d6875e8844b37b5ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling maplit v1.0.2
[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 2.50s
[INFO] running `Command { std: "docker" "inspect" "073cfafbb504c523511c129421dee2786b2cbf2258d7529d6875e8844b37b5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073cfafbb504c523511c129421dee2786b2cbf2258d7529d6875e8844b37b5ec", kill_on_drop: false }`
[INFO] [stdout] 073cfafbb504c523511c129421dee2786b2cbf2258d7529d6875e8844b37b5ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77ed950bdf1c56652565466c30c0f234c376ede13c34d1ac1644e2663f095f1c
[INFO] running `Command { std: "docker" "start" "-a" "77ed950bdf1c56652565466c30c0f234c376ede13c34d1ac1644e2663f095f1c", 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: `sbnf` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sbnf-97e354fbff470fe7)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test compiler::codegen::tests::collect_concat ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_optional ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_alternation ... ok
[INFO] [stdout] test compiler::codegen::tests::collect_repetition ... 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 sbnf::tests::parse_rules ... 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 sbnf::tests::parse_syntax_parameters ... ok
[INFO] [stdout] test sublime_syntax::tests::serialize_empty_syntax ... ok
[INFO] [stdout] test sublime_syntax::tests::serialize_contexts ... 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 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/syntax_tests.rs (/opt/rustwide/target/debug/deps/syntax_tests-e5960658d49a1132)
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', tests/syntax_tests.rs:19:58
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x556ad5c09250 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x556ad5c09250 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x556ad5c09250 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x556ad5c09250 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x556ad5c27afc - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]    5:     0x556ad5c06e25 - std::io::Write::write_fmt::hd42607e5d8e44db0
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]    6:     0x556ad5c0b35b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x556ad5c0b35b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x556ad5c0b35b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x556ad5c0ae31 - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x556ad5c0ba24 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stderr]   11:     0x556ad5c0b507 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stderr]   12:     0x556ad5c0972c - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   13:     0x556ad5c0b469 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stderr]   14:     0x556ad5be62d1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stderr]   15:     0x556ad5be6363 - core::result::unwrap_failed::ha0c84e81219e5878
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1599:5
[INFO] [stderr]   16:     0x556ad5becd77 - core::result::Result<T,E>::unwrap::h4580ec6f0abb1dd2
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1281:23
[INFO] [stderr]   17:     0x556ad5bf3082 - syntax_tests::main::hf4aa7f375be575b2
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/syntax_tests.rs:19:5
[INFO] [stderr]   18:     0x556ad5beeccb - core::ops::function::FnOnce::call_once::h998f1b8c698bd0d8
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stderr]   19:     0x556ad5be904e - std::sys_common::backtrace::__rust_begin_short_backtrace::h3562a15b87efd0d2
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]   20:     0x556ad5bf2361 - std::rt::lang_start::{{closure}}::h30524521574eece8
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/rt.rs:63:18
[INFO] [stderr]   21:     0x556ad5c0bf2a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha88a7d1a4d24e549
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:259:13
[INFO] [stderr]   22:     0x556ad5c0bf2a - std::panicking::try::do_call::hd3b1d7740607ccc7
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stderr]   23:     0x556ad5c0bf2a - std::panicking::try::h0ee8c65ac7461507
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stderr]   24:     0x556ad5c0bf2a - std::panic::catch_unwind::head47f0de4ccd838
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stderr]   25:     0x556ad5c0bf2a - std::rt::lang_start_internal::{{closure}}::hbc7de8ec820ac085
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/rt.rs:45:48
[INFO] [stderr]   26:     0x556ad5c0bf2a - std::panicking::try::do_call::h2609e52e8bad4a7b
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stderr]   27:     0x556ad5c0bf2a - std::panicking::try::hd0929f0b603e0389
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stderr]   28:     0x556ad5c0bf2a - std::panic::catch_unwind::h27902b81c3e47571
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stderr]   29:     0x556ad5c0bf2a - std::rt::lang_start_internal::h3fb2d794dd391e3e
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/rt.rs:45:20
[INFO] [stderr]   30:     0x556ad5bf2330 - std::rt::lang_start::h9dcfb18f760dd32b
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/rt.rs:62:5
[INFO] [stderr]   31:     0x556ad5bf50dc - main
[INFO] [stderr]   32:     0x7f92bf4ad0b3 - __libc_start_main
[INFO] [stderr]   33:     0x556ad5be6a2e - _start
[INFO] [stderr]   34:                0x0 - <unknown>
[INFO] [stderr] error: test failed, to rerun pass '--test syntax_tests'
[INFO] running `Command { std: "docker" "inspect" "77ed950bdf1c56652565466c30c0f234c376ede13c34d1ac1644e2663f095f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77ed950bdf1c56652565466c30c0f234c376ede13c34d1ac1644e2663f095f1c", kill_on_drop: false }`
[INFO] [stdout] 77ed950bdf1c56652565466c30c0f234c376ede13c34d1ac1644e2663f095f1c
