[INFO] fetching crate zorro 0.0.1...
[INFO] testing zorro-0.0.1 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate zorro 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate zorro 0.0.1 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zorro 0.0.1
[INFO] finished tweaking crates.io crate zorro 0.0.1
[INFO] tweaked toml for crates.io crate zorro 0.0.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7124d2813b84f17e3f8317d897149e86f53815c171a1bb858a3bd399e67f1f15
[INFO] running `Command { std: "docker" "start" "-a" "7124d2813b84f17e3f8317d897149e86f53815c171a1bb858a3bd399e67f1f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7124d2813b84f17e3f8317d897149e86f53815c171a1bb858a3bd399e67f1f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7124d2813b84f17e3f8317d897149e86f53815c171a1bb858a3bd399e67f1f15", kill_on_drop: false }`
[INFO] [stdout] 7124d2813b84f17e3f8317d897149e86f53815c171a1bb858a3bd399e67f1f15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95cc505750f245fd00a87a340c25d3621ad42ad11b773bac8b236def1296af3e
[INFO] running `Command { std: "docker" "start" "-a" "95cc505750f245fd00a87a340c25d3621ad42ad11b773bac8b236def1296af3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling zorro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `get_file_as_byte_vec`
[INFO] [stdout]    --> src/lib.rs:296:4
[INFO] [stdout]     |
[INFO] [stdout] 296 | fn get_file_as_byte_vec(filename: &str) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "95cc505750f245fd00a87a340c25d3621ad42ad11b773bac8b236def1296af3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95cc505750f245fd00a87a340c25d3621ad42ad11b773bac8b236def1296af3e", kill_on_drop: false }`
[INFO] [stdout] 95cc505750f245fd00a87a340c25d3621ad42ad11b773bac8b236def1296af3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91b624d2abab8b84850ac906be3bf0efe4cca1dedfa645040066d592d00cab46
[INFO] running `Command { std: "docker" "start" "-a" "91b624d2abab8b84850ac906be3bf0efe4cca1dedfa645040066d592d00cab46", kill_on_drop: false }`
[INFO] [stderr]    Compiling zorro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `get_file_as_byte_vec`
[INFO] [stdout]    --> src/lib.rs:296:4
[INFO] [stdout]     |
[INFO] [stdout] 296 | fn get_file_as_byte_vec(filename: &str) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "91b624d2abab8b84850ac906be3bf0efe4cca1dedfa645040066d592d00cab46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b624d2abab8b84850ac906be3bf0efe4cca1dedfa645040066d592d00cab46", kill_on_drop: false }`
[INFO] [stdout] 91b624d2abab8b84850ac906be3bf0efe4cca1dedfa645040066d592d00cab46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a0f68d14161912d2b1df844a909ff210f103d9da779bb42a4ab1e509fa796d2
[INFO] running `Command { std: "docker" "start" "-a" "7a0f68d14161912d2b1df844a909ff210f103d9da779bb42a4ab1e509fa796d2", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `get_file_as_byte_vec`
[INFO] [stderr]    --> src/lib.rs:296:4
[INFO] [stderr]     |
[INFO] [stderr] 296 | fn get_file_as_byte_vec(filename: &str) -> Vec<u8> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zorro-f805ba277a5872d6)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::it_decodes_from_png ... ok
[INFO] [stdout] test tests::it_encodes_to_u8s ... ok
[INFO] [stdout] test tests::it_decodes_from_png_data ... ok
[INFO] [stdout] test tests::it_decodes_from_hidden_mode_depth_2 ... ok
[INFO] [stdout] test tests::it_encodes_from_file ... FAILED
[INFO] [stdout] test tests::it_encodes_in_hidden_mode_depth_6 ... FAILED
[INFO] [stdout] test tests::it_decodes_to_file ... FAILED
[INFO] [stdout] test tests::it_encodes_to_png ... FAILED
[INFO] [stdout] test tests::it_encodes_in_hidden_mode_depth_2 ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_encodes_from_file stdout ----
[INFO] [stdout] thread 'tests::it_encodes_from_file' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/lib.rs:90:35
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564857533a20 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x564857533a20 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5648575563ac - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x564857530965 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x564857535bab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5648575356bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x564857536251 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x564857535d57 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x564857533f1c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x564857535cb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x564857442991 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x564857442a83 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x56485746b9de - <core[ee1ca6415511a9c4]::result::Result<std[77c0456e0eb29f0c]::fs::File, std[77c0456e0eb29f0c]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x564857466906 - zorro[7fbd4b208d6432bf]::write_png
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:90:16
[INFO] [stdout]   18:     0x5648574660a3 - zorro[7fbd4b208d6432bf]::encode
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:42:5
[INFO] [stdout]   19:     0x56485746624f - zorro[7fbd4b208d6432bf]::encode_from_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:48:5
[INFO] [stdout]   20:     0x5648574751dd - zorro[7fbd4b208d6432bf]::tests::it_encodes_from_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:335:9
[INFO] [stdout]   21:     0x56485747517a - zorro[7fbd4b208d6432bf]::tests::it_encodes_from_file::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:334:5
[INFO] [stdout]   22:     0x56485745862e - <zorro[7fbd4b208d6432bf]::tests::it_encodes_from_file::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x56485749bbd3 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   24:     0x56485749bbd3 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   25:     0x56485749a69c - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   26:     0x56485749a69c - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   27:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   28:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   29:     0x56485749a69c - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   30:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   31:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   32:     0x56485747a362 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   33:     0x56485747a362 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   34:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   35:     0x56485747ac48 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   36:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   37:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   38:     0x56485747ac48 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   39:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   40:     0x56485747ac48 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   41:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   43:     0x56485753ad07 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   44:     0x7f82c5377609 - start_thread
[INFO] [stdout]   45:     0x7f82c5149293 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_encodes_in_hidden_mode_depth_6 stdout ----
[INFO] [stdout] thread 'tests::it_encodes_in_hidden_mode_depth_6' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/lib.rs:90:35
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564857533a20 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x564857533a20 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5648575563ac - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x564857530965 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x564857535bab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5648575356bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x564857536251 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x564857535d57 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x564857533f1c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x564857535cb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x564857442991 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x564857442a83 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x56485746b9de - <core[ee1ca6415511a9c4]::result::Result<std[77c0456e0eb29f0c]::fs::File, std[77c0456e0eb29f0c]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x564857466906 - zorro[7fbd4b208d6432bf]::write_png
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:90:16
[INFO] [stdout]   18:     0x5648574660a3 - zorro[7fbd4b208d6432bf]::encode
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:42:5
[INFO] [stdout]   19:     0x56485747567f - zorro[7fbd4b208d6432bf]::tests::it_encodes_in_hidden_mode_depth_6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:376:9
[INFO] [stdout]   20:     0x56485747560a - zorro[7fbd4b208d6432bf]::tests::it_encodes_in_hidden_mode_depth_6::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:374:5
[INFO] [stdout]   21:     0x5648574586ee - <zorro[7fbd4b208d6432bf]::tests::it_encodes_in_hidden_mode_depth_6::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x56485749bbd3 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x56485749bbd3 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x56485749a69c - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x56485749a69c - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x56485749a69c - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56485747a362 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56485747a362 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x56485747ac48 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x56485747ac48 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x56485747ac48 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x56485753ad07 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7f82c5377609 - start_thread
[INFO] [stdout]   44:     0x7f82c5149293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_decodes_to_file stdout ----
[INFO] [stdout] thread 'tests::it_decodes_to_file' panicked at 'Unable to write file: Os { code: 30, kind: Other, message: "Read-only file system" }', src/lib.rs:63:39
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564857533a20 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x564857533a20 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5648575563ac - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x564857530965 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x564857535bab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5648575356bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x564857536251 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x564857535d57 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x564857533f1c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x564857535cb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x564857442991 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x564857442a83 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x5648574fc789 - <core[ee1ca6415511a9c4]::result::Result<(), std[77c0456e0eb29f0c]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:997:23
[INFO] [stdout]   17:     0x56485746644a - zorro[7fbd4b208d6432bf]::decode_to_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:63:5
[INFO] [stdout]   18:     0x564857475251 - zorro[7fbd4b208d6432bf]::tests::it_decodes_to_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:341:9
[INFO] [stdout]   19:     0x56485747521a - zorro[7fbd4b208d6432bf]::tests::it_decodes_to_file::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:340:5
[INFO] [stdout]   20:     0x5648574585ae - <zorro[7fbd4b208d6432bf]::tests::it_decodes_to_file::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x56485749bbd3 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x56485749bbd3 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   23:     0x56485749a69c - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   24:     0x56485749a69c - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   25:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   26:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   27:     0x56485749a69c - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   28:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   29:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   30:     0x56485747a362 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   31:     0x56485747a362 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   32:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   33:     0x56485747ac48 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   34:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   35:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   36:     0x56485747ac48 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   37:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   38:     0x56485747ac48 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   39:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x56485753ad07 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   42:     0x7f82c5377609 - start_thread
[INFO] [stdout]   43:     0x7f82c5149293 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_encodes_to_png stdout ----
[INFO] [stdout] called `zorro::encode()`
[INFO] [stdout] thread 'tests::it_encodes_to_png' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/lib.rs:90:35
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564857533a20 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x564857533a20 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5648575563ac - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x564857530965 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x564857535bab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5648575356bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x564857536251 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x564857535d57 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x564857533f1c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x564857535cb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x564857442991 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x564857442a83 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x56485746b9de - <core[ee1ca6415511a9c4]::result::Result<std[77c0456e0eb29f0c]::fs::File, std[77c0456e0eb29f0c]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x564857466906 - zorro[7fbd4b208d6432bf]::write_png
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:90:16
[INFO] [stdout]   18:     0x5648574660a3 - zorro[7fbd4b208d6432bf]::encode
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:42:5
[INFO] [stdout]   19:     0x56485747501f - zorro[7fbd4b208d6432bf]::tests::it_encodes_to_png
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:322:9
[INFO] [stdout]   20:     0x564857474f7a - zorro[7fbd4b208d6432bf]::tests::it_encodes_to_png::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:319:5
[INFO] [stdout]   21:     0x56485745852e - <zorro[7fbd4b208d6432bf]::tests::it_encodes_to_png::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x56485749bbd3 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x56485749bbd3 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x56485749a69c - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x56485749a69c - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x56485749a69c - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56485747a362 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56485747a362 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x56485747ac48 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x56485747ac48 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x56485747ac48 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x56485753ad07 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7f82c5377609 - start_thread
[INFO] [stdout]   44:     0x7f82c5149293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_encodes_in_hidden_mode_depth_2 stdout ----
[INFO] [stdout] thread 'tests::it_encodes_in_hidden_mode_depth_2' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/lib.rs:90:35
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x564857533a20 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564857533a20 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x564857533a20 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5648575563ac - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x564857530965 - <alloc[cda43b294bbfc5d0]::vec::Vec<u8> as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x564857535bab - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x564857535bab - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5648575356bc - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x564857536251 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x564857535d57 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x564857533f1c - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x564857535cb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x564857442991 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x564857442a83 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x56485746b9de - <core[ee1ca6415511a9c4]::result::Result<std[77c0456e0eb29f0c]::fs::File, std[77c0456e0eb29f0c]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x564857466906 - zorro[7fbd4b208d6432bf]::write_png
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:90:16
[INFO] [stdout]   18:     0x5648574660a3 - zorro[7fbd4b208d6432bf]::encode
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:42:5
[INFO] [stdout]   19:     0x5648574754af - zorro[7fbd4b208d6432bf]::tests::it_encodes_in_hidden_mode_depth_2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:362:9
[INFO] [stdout]   20:     0x56485747543a - zorro[7fbd4b208d6432bf]::tests::it_encodes_in_hidden_mode_depth_2::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:360:5
[INFO] [stdout]   21:     0x5648574586ae - <zorro[7fbd4b208d6432bf]::tests::it_encodes_in_hidden_mode_depth_2::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x56485749bbd3 - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x56485749bbd3 - test[eeb9024d9ac7bc83]::__rust_begin_short_backtrace::<fn()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x56485749a69c - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x56485749a69c - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x56485749a69c - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x56485749a69c - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()> + core[ee1ca6415511a9c4]::marker::Send>>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test_in_process
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x56485749a69c - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56485747a362 - test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56485747a362 - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x56485747ac48 - <std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::do_call::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x56485747ac48 - std[77c0456e0eb29f0c]::panicking::try::<(), std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x56485747ac48 - std[77c0456e0eb29f0c]::panic::catch_unwind::<std[77c0456e0eb29f0c]::panic::AssertUnwindSafe<<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x56485747ac48 - <std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked::<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x56485747ac48 - <<std[77c0456e0eb29f0c]::thread::Builder>::spawn_unchecked<test[eeb9024d9ac7bc83]::run_test::run_test_inner::{closure#1}, ()>::{closure#0} as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x56485753ad07 - <alloc[cda43b294bbfc5d0]::boxed::Box<alloc[cda43b294bbfc5d0]::boxed::Box<dyn core[ee1ca6415511a9c4]::ops::function::FnOnce<(), Output = ()>>> as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x56485753ad07 - <std[77c0456e0eb29f0c]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7f82c5377609 - start_thread
[INFO] [stdout]   44:     0x7f82c5149293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::it_decodes_to_file
[INFO] [stdout]     tests::it_encodes_from_file
[INFO] [stdout]     tests::it_encodes_in_hidden_mode_depth_2
[INFO] [stdout]     tests::it_encodes_in_hidden_mode_depth_6
[INFO] [stdout]     tests::it_encodes_to_png
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "7a0f68d14161912d2b1df844a909ff210f103d9da779bb42a4ab1e509fa796d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0f68d14161912d2b1df844a909ff210f103d9da779bb42a4ab1e509fa796d2", kill_on_drop: false }`
[INFO] [stdout] 7a0f68d14161912d2b1df844a909ff210f103d9da779bb42a4ab1e509fa796d2