[INFO] cloning repository https://github.com/lukas-hen/compression_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukas-hen/compression_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukas-hen%2Fcompression_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukas-hen%2Fcompression_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45418c3ddabd06d680ba59a54154f8cca15e62dc
[INFO] testing lukas-hen/compression_rs against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukas-hen%2Fcompression_rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lukas-hen/compression_rs
[INFO] finished tweaking git repo https://github.com/lukas-hen/compression_rs
[INFO] tweaked toml for git repo https://github.com/lukas-hen/compression_rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lukas-hen/compression_rs on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lukas-hen/compression_rs 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78429d19b8f12109a77243a58c0b3f33fb08ce80bfddefa49de3081b6e6930c6
[INFO] running `Command { std: "docker" "start" "-a" "78429d19b8f12109a77243a58c0b3f33fb08ce80bfddefa49de3081b6e6930c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78429d19b8f12109a77243a58c0b3f33fb08ce80bfddefa49de3081b6e6930c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78429d19b8f12109a77243a58c0b3f33fb08ce80bfddefa49de3081b6e6930c6", kill_on_drop: false }`
[INFO] [stdout] 78429d19b8f12109a77243a58c0b3f33fb08ce80bfddefa49de3081b6e6930c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c346f1ccb5460e98df3b44f55b1666c61ba374a00df251fcb58b4709f216086a
[INFO] running `Command { std: "docker" "start" "-a" "c346f1ccb5460e98df3b44f55b1666c61ba374a00df251fcb58b4709f216086a", kill_on_drop: false }`
[INFO] [stderr]    Compiling compression_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `codes`
[INFO] [stdout]   --> src/huffman.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let codes: Vec<u32> = alphabet.into_iter().filter(|l| l.gt(&0u32)).collect();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_codes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/huffman.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn decode(bytes: &[u8]) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write` is never used
[INFO] [stdout]   --> src/huffman_dotfile.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn write(bytes: &[u8], filename: &str) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> src/huffman_dotfile.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct Node {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Node {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 114 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_dotfile_header` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn write_dotfile_header<T: Write>(w: &mut T) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_dotfile_label` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn write_dotfile_label<T, I, L>(w: &mut T, node_id: I, symbol: L) -> Result<(), Box<dyn Error>>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_dotfile_closure` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn write_dotfile_closure<T: Write>(w: &mut T) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_freq_table` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn build_freq_table(symbols: &[u8]) -> HashMap<u8, usize> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "c346f1ccb5460e98df3b44f55b1666c61ba374a00df251fcb58b4709f216086a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c346f1ccb5460e98df3b44f55b1666c61ba374a00df251fcb58b4709f216086a", kill_on_drop: false }`
[INFO] [stdout] c346f1ccb5460e98df3b44f55b1666c61ba374a00df251fcb58b4709f216086a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bb854e7091de1f3f2c791f0e3ebdf40758785f0ea302ad6aee1eabd8e4f4695
[INFO] running `Command { std: "docker" "start" "-a" "2bb854e7091de1f3f2c791f0e3ebdf40758785f0ea302ad6aee1eabd8e4f4695", kill_on_drop: false }`
[INFO] [stderr]    Compiling compression_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `codes`
[INFO] [stdout]   --> src/huffman.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let codes: Vec<u32> = alphabet.into_iter().filter(|l| l.gt(&0u32)).collect();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_codes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/huffman.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn decode(bytes: &[u8]) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write` is never used
[INFO] [stdout]   --> src/huffman_dotfile.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn write(bytes: &[u8], filename: &str) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> src/huffman_dotfile.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct Node {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Node {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 114 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_dotfile_header` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn write_dotfile_header<T: Write>(w: &mut T) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_dotfile_label` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn write_dotfile_label<T, I, L>(w: &mut T, node_id: I, symbol: L) -> Result<(), Box<dyn Error>>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_dotfile_closure` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn write_dotfile_closure<T: Write>(w: &mut T) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_freq_table` is never used
[INFO] [stdout]    --> src/huffman_dotfile.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn build_freq_table(symbols: &[u8]) -> HashMap<u8, usize> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "2bb854e7091de1f3f2c791f0e3ebdf40758785f0ea302ad6aee1eabd8e4f4695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb854e7091de1f3f2c791f0e3ebdf40758785f0ea302ad6aee1eabd8e4f4695", kill_on_drop: false }`
[INFO] [stdout] 2bb854e7091de1f3f2c791f0e3ebdf40758785f0ea302ad6aee1eabd8e4f4695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29bb89293e0f945e9cb5e0323089428bb2fae7f9dcfaf2e2285f4bcdb14243b1
[INFO] running `Command { std: "docker" "start" "-a" "29bb89293e0f945e9cb5e0323089428bb2fae7f9dcfaf2e2285f4bcdb14243b1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `codes`
[INFO] [stderr]   --> src/huffman.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let codes: Vec<u32> = alphabet.into_iter().filter(|l| l.gt(&0u32)).collect();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_codes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/huffman.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn decode(bytes: &[u8]) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: function `write` is never used
[INFO] [stderr]   --> src/huffman_dotfile.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn write(bytes: &[u8], filename: &str) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]    --> src/huffman_dotfile.rs:105:8
[INFO] [stderr]     |
[INFO] [stderr] 105 | struct Node {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/huffman_dotfile.rs:114:8
[INFO] [stderr]     |
[INFO] [stderr] 113 | impl Node {
[INFO] [stderr]     | --------- associated function in this implementation
[INFO] [stderr] 114 |     fn new(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `write_dotfile_header` is never used
[INFO] [stderr]    --> src/huffman_dotfile.rs:147:4
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn write_dotfile_header<T: Write>(w: &mut T) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `write_dotfile_label` is never used
[INFO] [stderr]    --> src/huffman_dotfile.rs:152:4
[INFO] [stderr]     |
[INFO] [stderr] 152 | fn write_dotfile_label<T, I, L>(w: &mut T, node_id: I, symbol: L) -> Result<(), Box<dyn Error>>
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `write_dotfile_closure` is never used
[INFO] [stderr]    --> src/huffman_dotfile.rs:165:4
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn write_dotfile_closure<T: Write>(w: &mut T) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_freq_table` is never used
[INFO] [stderr]    --> src/huffman_dotfile.rs:170:4
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn build_freq_table(symbols: &[u8]) -> HashMap<u8, usize> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `compression_rs` (bin "compression_rs" test) generated 9 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/compression_rs-c2bb83643ac3d817)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test huffman::tests::bit_writer_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- huffman::tests::bit_writer_test stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'huffman::tests::bit_writer_test' panicked at src/huffman.rs:342:44:
[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:     0x597df2c53612 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x597df2c53612 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x597df2c53612 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x597df2c53612 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha499add612cccf8e
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x597df2c78753 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x597df2c78753 - core::fmt::write::hb10c956f5235c8a4
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x597df2c50743 - std::io::default_write_fmt::hdb7615052be2ba4d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x597df2c50743 - std::io::Write::write_fmt::he1bcd251ec6e4153
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x597df2c53462 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x597df2c54c2c - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x597df2c54a82 - std::panicking::default_hook::h7c46b44874fe5c9a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x597df2c1c1f4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h178a5fcedee41e2f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x597df2c1c1f4 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x597df2c5560b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h13602080f5b63276
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x597df2c5560b - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x597df2c553da - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x597df2c53b09 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x597df2c5506d - __rustc[18fb429eef004894]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x597df2c772d0 - core::panicking::panic_fmt::hd890aeb12c3a3fc3
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x597df2c77646 - core::result::unwrap_failed::h31c9775ec1a50121
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x597df2be24c4 - core::result::Result<T,E>::unwrap::hb3b727011ab20396
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x597df2be24c4 - compression_rs::huffman::tests::bit_writer_test::h14c2fa7638a42cff
[INFO] [stdout]                                at /opt/rustwide/workdir/src/huffman.rs:342:44
[INFO] [stdout]   22:     0x597df2be24c4 - compression_rs::huffman::tests::bit_writer_test::{{closure}}::h848340512da20cfa
[INFO] [stdout]                                at /opt/rustwide/workdir/src/huffman.rs:340:25
[INFO] [stdout]   23:     0x597df2be24c4 - core::ops::function::FnOnce::call_once::h9c9a6e08168ca34a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x597df2c2197b - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x597df2c2197b - test::__rust_begin_short_backtrace::h7dd7142bd62fa711
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x597df2c20b6e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x597df2c20b6e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x597df2c20b6e - std::panicking::catch_unwind::do_call::he308587d70ac34ba
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x597df2c20b6e - std::panicking::catch_unwind::h30dcba31973e8fb0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x597df2c20b6e - std::panic::catch_unwind::hfb68364e5621fbee
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x597df2c20b6e - test::run_test_in_process::hcdcc2977903b998a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x597df2c20b6e - test::run_test::{{closure}}::h544a6550958c5d14
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x597df2be46e4 - test::run_test::{{closure}}::hb172e48ebe2b92c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x597df2be46e4 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x597df2be80ba - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x597df2be80ba - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x597df2be80ba - std::panicking::catch_unwind::do_call::h052f373fb905fee0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x597df2be80ba - std::panicking::catch_unwind::hb425d20c8ffb09c8
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x597df2be80ba - std::panic::catch_unwind::ha0d5dfbf18fdeda5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x597df2be80ba - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x597df2be80ba - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x597df2c58567 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h47377e27fb938a26
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x597df2c58567 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h72f1fe5d095abf57
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x597df2c58567 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x7fa7b49a0aa4 - <unknown>
[INFO] [stdout]   46:     0x7fa7b4a2da34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     huffman::tests::bit_writer_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin compression_rs`
[INFO] running `Command { std: "docker" "inspect" "29bb89293e0f945e9cb5e0323089428bb2fae7f9dcfaf2e2285f4bcdb14243b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29bb89293e0f945e9cb5e0323089428bb2fae7f9dcfaf2e2285f4bcdb14243b1", kill_on_drop: false }`
[INFO] [stdout] 29bb89293e0f945e9cb5e0323089428bb2fae7f9dcfaf2e2285f4bcdb14243b1
