[INFO] fetching crate fixed_width 0.6.0...
[INFO] testing fixed_width-0.6.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fixed_width 0.6.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate fixed_width 0.6.0
[INFO] finished tweaking crates.io crate fixed_width 0.6.0
[INFO] tweaked toml for crates.io crate fixed_width 0.6.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fixed_width 0.6.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a
[INFO] running `Command { std: "docker" "start" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed_width v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:183:26
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn string_reader(&mut self) -> StringReader<R> {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn string_reader(&mut self) -> StringReader<'_, R> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn byte_reader(&mut self) -> ByteReader<R> {
[INFO] [stdout]     |                        ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn byte_reader(&mut self) -> ByteReader<'_, R> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:183:26
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn string_reader(&mut self) -> StringReader<R> {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn string_reader(&mut self) -> StringReader<'_, R> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn byte_reader(&mut self) -> ByteReader<R> {
[INFO] [stdout]     |                        ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn byte_reader(&mut self) -> ByteReader<'_, R> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling fixed_width v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:183:26
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn string_reader(&mut self) -> StringReader<R> {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn string_reader(&mut self) -> StringReader<'_, R> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn byte_reader(&mut self) -> ByteReader<R> {
[INFO] [stdout]     |                        ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn byte_reader(&mut self) -> ByteReader<'_, R> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 7.82s
[INFO] running `Command { std: "docker" "inspect" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/reader.rs:183:26
[INFO] [stderr]     |
[INFO] [stderr] 183 |     pub fn string_reader(&mut self) -> StringReader<R> {
[INFO] [stderr]     |                          ^^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 183 |     pub fn string_reader(&mut self) -> StringReader<'_, R> {
[INFO] [stderr]     |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/reader.rs:200:24
[INFO] [stderr]     |
[INFO] [stderr] 200 |     pub fn byte_reader(&mut self) -> ByteReader<R> {
[INFO] [stderr]     |                        ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 200 |     pub fn byte_reader(&mut self) -> ByteReader<'_, R> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `fixed_width` (lib) generated 2 warnings (run `cargo fix --lib -p fixed_width` to apply 2 suggestions)
[INFO] [stderr] warning: `fixed_width` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/fixed_width-8b9476d49db8ac81)
[INFO] [stdout] 
[INFO] [stdout] running 65 tests
[INFO] [stdout] test de::test::bool_de ... ok
[INFO] [stdout] test de::test::byte_buf_de ... ok
[INFO] [stdout] test de::test::enum_de ... ok
[INFO] [stdout] test de::test::float_de ... ok
[INFO] [stdout] test de::test::from_str_de ... ok
[INFO] [stdout] test de::test::from_bytes_de ... ok
[INFO] [stdout] test de::test::char_de ... ok
[INFO] [stdout] test de::test::bytes_de ... ok
[INFO] [stdout] test de::test::newtype_struct_de ... ok
[INFO] [stdout] test de::test::int_de ... ok
[INFO] [stdout] test de::test::hashmap_de ... ok
[INFO] [stdout] test de::test::option_de ... ok
[INFO] [stdout] test de::test::seq_de ... ok
[INFO] [stdout] test de::test::str_de ... ok
[INFO] [stdout] test de::test::string_de ... ok
[INFO] [stdout] test de::test::struct_de ... ok
[INFO] [stdout] test de::test::test_does_not_panic_for_empty_bool ... ok
[INFO] [stdout] test de::test::test_does_not_panic_for_empty_char ... ok
[INFO] [stdout] test de::test::test_lowercase_serde_option_for_enum ... ok
[INFO] [stdout] test de::test::test_nested_optional_arr ... ok
[INFO] [stdout] test de::test::test_nested_seq ... ok
[INFO] [stdout] test de::test::test_nested_sturct ... ok
[INFO] [stdout] test de::test::tuple_de ... ok
[INFO] [stdout] test de::test::tuple_struct_de ... ok
[INFO] [stdout] test de::test::unit_de ... ok
[INFO] [stdout] test reader::test::read_from_string ... ok
[INFO] [stdout] test reader::test::read_from_bytes_with_crlf ... ok
[INFO] [stdout] test reader::test::read_from_string_with_crlf ... ok
[INFO] [stdout] test reader::test::read_from_string_with_newlines ... ok
[INFO] [stdout] test reader::test::read_next_record ... ok
[INFO] [stdout] test reader::test::read_from_bytes ... ok
[INFO] [stdout] test reader::test::test_read ... ok
[INFO] [stdout] test de::test::unit_struct_de ... ok
[INFO] [stdout] test ser::test::bool_ser ... ok
[INFO] [stdout] test ser::test::int_ser ... ok
[INFO] [stdout] test ser::test::float_ser ... ok
[INFO] [stdout] test ser::test::nested_struct ... ok
[INFO] [stdout] test ser::test::newtype_struct_ser ... ok
[INFO] [stdout] test ser::test::bytes_ser ... ok
[INFO] [stdout] test ser::test::none_ser ... ok
[INFO] [stdout] test ser::test::seq_ser ... ok
[INFO] [stdout] test ser::test::pad_right_justified ... ok
[INFO] [stdout] test ser::test::some_ser ... ok
[INFO] [stdout] test ser::test::pad_left_justified ... ok
[INFO] [stdout] test ser::test::str_ser ... ok
[INFO] [stdout] test ser::test::map_ser ... ok
[INFO] [stdout] test ser::test::struct_ser ... ok
[INFO] [stdout] test ser::test::to_bytes_ser ... ok
[INFO] [stdout] test ser::test::to_string_ser ... ok
[INFO] [stdout] test ser::test::tuple_ser ... ok
[INFO] [stdout] test ser::test::tuple_struct_ser ... ok
[INFO] [stdout] test ser::test::unit_ser ... ok
[INFO] [stdout] test ser::test::unit_struct_ser ... ok
[INFO] [stdout] test test::field_building ... ok
[INFO] [stdout] test test::fieldset_justify ... ok
[INFO] [stdout] test test::fieldset_name ... ok
[INFO] [stdout] test test::fieldset_justify_str ... ok
[INFO] [stdout] test test::fieldset_pad_with ... ok
[INFO] [stdout] test writer::test::serialized_write ... ok
[INFO] [stdout] test writer::test::test_write ... ok
[INFO] [stdout] test test::failed_on_fieldset_name - should panic ... ok
[INFO] [stdout] test writer::test::write_to_memory ... ok
[INFO] [stdout] test writer::test::write_to_writer ... ok
[INFO] [stdout] test test::fieldset_justify_panic - should panic ... ok
[INFO] [stdout] test test::line_break_byte_width ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 65 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/release/deps/integration_tests-991e1526dbb951a2)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test read_from_file ... ok
[INFO] [stdout] test read_from_file_with_newlines ... ok
[INFO] [stdout] test write_to_file ... FAILED
[INFO] [stdout] test write_to_file_with_newlines ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- write_to_file stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'write_to_file' (420) panicked at tests/integration_tests.rs:54:32:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6316136b1931 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6316136c5cda - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x6316136b5dcc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x63161368dad6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6316136a9c49 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x631613645ad0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x6316136a9e02 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x63161368db82 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6316136866c9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x63161368e77d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x6316136c640c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6316136c61e2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x63161363779c - <integration_tests[3808cb98bcc1dd94]::write_to_file::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x631613638dbb - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x631613646425 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x63161363fce4 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x631613649582 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x6316136b0e99 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x77b062577dfa - <unknown>
[INFO] [stdout]   19:     0x77b06260b3d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- write_to_file_with_newlines stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'write_to_file_with_newlines' (421) panicked at tests/integration_tests.rs:76:32:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6316136b1931 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6316136c5cda - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x6316136b5dcc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x63161368dad6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6316136a9c49 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x631613645ad0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x6316136a9e02 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x63161368db82 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6316136866c9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x63161368e77d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x6316136c640c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6316136c61e2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x6316136383ec - <integration_tests[3808cb98bcc1dd94]::write_to_file_with_newlines::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x631613638dbb - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x631613646425 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x63161363fce4 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x631613649582 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x6316136b0e99 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x77b062577dfa - <unknown>
[INFO] [stdout]   19:     0x77b06260b3d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     write_to_file
[INFO] [stdout]     write_to_file_with_newlines
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test integration_tests`
[INFO] running `Command { std: "docker" "inspect" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a", kill_on_drop: false }`
[INFO] [stdout] f543af7b2a21aa0b60cfe6e43328b02c22f3805b187b92d07c8b69826475467a
