[INFO] fetching crate whats-a-png 0.1.1... [INFO] testing whats-a-png-0.1.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1 [INFO] extracting crate whats-a-png 0.1.1 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate whats-a-png 0.1.1 [INFO] finished tweaking crates.io crate whats-a-png 0.1.1 [INFO] tweaked toml for crates.io crate whats-a-png 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate whats-a-png 0.1.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate whats-a-png 0.1.1 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 88c7a532220bacbf392cc90a563c0732b49789a9f62058f42226e16a519423f2 [INFO] running `Command { std: "docker" "start" "-a" "88c7a532220bacbf392cc90a563c0732b49789a9f62058f42226e16a519423f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "88c7a532220bacbf392cc90a563c0732b49789a9f62058f42226e16a519423f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "88c7a532220bacbf392cc90a563c0732b49789a9f62058f42226e16a519423f2", kill_on_drop: false }` [INFO] [stdout] 88c7a532220bacbf392cc90a563c0732b49789a9f62058f42226e16a519423f2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ae4826124e53238283fbfdfd7657823bb30fc69187b21cfdb3d5a10c8857148b [INFO] running `Command { std: "docker" "start" "-a" "ae4826124e53238283fbfdfd7657823bb30fc69187b21cfdb3d5a10c8857148b", kill_on_drop: false }` [INFO] [stderr] Compiling whats-a-png v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `info` is never read [INFO] [stdout] --> src/png.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 32 | pub struct PngImage { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 33 | pub info: PNGInfo, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/png.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 45 | pub struct PNGInfo { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 46 | pub width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 47 | pub height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 48 | pub bit_depth: u8, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 49 | pub color_type: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 50 | pub compression_method: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 51 | pub filter_method: u8, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 52 | pub interlace_method: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `Command { std: "docker" "inspect" "ae4826124e53238283fbfdfd7657823bb30fc69187b21cfdb3d5a10c8857148b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae4826124e53238283fbfdfd7657823bb30fc69187b21cfdb3d5a10c8857148b", kill_on_drop: false }` [INFO] [stdout] ae4826124e53238283fbfdfd7657823bb30fc69187b21cfdb3d5a10c8857148b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3463f445b7c0bfbd6f5dbece63ee8ec7676e8db018b00388e2b9bb2210bc1b28 [INFO] running `Command { std: "docker" "start" "-a" "3463f445b7c0bfbd6f5dbece63ee8ec7676e8db018b00388e2b9bb2210bc1b28", kill_on_drop: false }` [INFO] [stderr] Compiling whats-a-png v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `info` is never read [INFO] [stdout] --> src/png.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 32 | pub struct PngImage { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 33 | pub info: PNGInfo, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/png.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 45 | pub struct PNGInfo { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 46 | pub width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 47 | pub height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 48 | pub bit_depth: u8, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 49 | pub color_type: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 50 | pub compression_method: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 51 | pub filter_method: u8, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 52 | pub interlace_method: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "3463f445b7c0bfbd6f5dbece63ee8ec7676e8db018b00388e2b9bb2210bc1b28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3463f445b7c0bfbd6f5dbece63ee8ec7676e8db018b00388e2b9bb2210bc1b28", kill_on_drop: false }` [INFO] [stdout] 3463f445b7c0bfbd6f5dbece63ee8ec7676e8db018b00388e2b9bb2210bc1b28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 233a89763379948cb173f656d0fdc2d6d4ff7b74bb74c39933a376257d0383fb [INFO] running `Command { std: "docker" "start" "-a" "233a89763379948cb173f656d0fdc2d6d4ff7b74bb74c39933a376257d0383fb", kill_on_drop: false }` [INFO] [stderr] warning: field `info` is never read [INFO] [stderr] --> src/png.rs:33:9 [INFO] [stderr] | [INFO] [stderr] 32 | pub struct PngImage { [INFO] [stderr] | -------- field in this struct [INFO] [stderr] 33 | pub info: PNGInfo, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: multiple fields are never read [INFO] [stderr] --> src/png.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 45 | pub struct PNGInfo { [INFO] [stderr] | ------- fields in this struct [INFO] [stderr] 46 | pub width: u32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 47 | pub height: u32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 48 | pub bit_depth: u8, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 49 | pub color_type: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 50 | pub compression_method: u8, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 51 | pub filter_method: u8, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] 52 | pub interlace_method: u8, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `whats-a-png` (bin "whats-a-png" test) generated 2 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/whats_a_png-bcf2ae08b992174a) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test png::tests::test_new ... ok [INFO] [stdout] test png::tests::test_read_image_data ... ok [INFO] [stdout] test png::tests::test_chunks ... ok [INFO] [stdout] test png::tests::test_save_image ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- png::tests::test_save_image stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'png::tests::test_save_image' (27) panicked at src/png.rs:319:37: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: SaveOperationFailed [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5747aaa1bb32 - std::backtrace_rs::backtrace::libunwind::trace::h76861be37b31432e [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5747aaa1bb32 - std::backtrace_rs::backtrace::trace_unsynchronized::h58d4003082192c17 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5747aaa1bb32 - std::sys::backtrace::_print_fmt::hfe5857a399620d2a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5747aaa1bb32 - ::fmt::h52160e9da139e442 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5747aaa2bdaf - core::fmt::rt::Argument::fmt::h66fe6fef9ecca14a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5747aaa2bdaf - core::fmt::write::hf09a056a304e021a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5747aa9e8bd1 - std::io::default_write_fmt::hf1a3645468226e09 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5747aa9e8bd1 - std::io::Write::write_fmt::ha5ada6d6a18bde33 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5747aa9f4ca2 - std::sys::backtrace::BacktraceLock::print::h15104dbcf0fd1f14 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5747aa9f97ef - std::panicking::default_hook::{{closure}}::h0fa6cd8dbe0dd76b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5747aa9f9681 - std::panicking::default_hook::h8d20506cf72e4831 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5747aa9b9a1e - as core::ops::function::Fn>::call::h3d020961abd83a77 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x5747aa9b9a1e - test::test_main_with_exit_callback::{{closure}}::h720dd2fdb2ddcdca [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5747aa9f9eaf - as core::ops::function::Fn>::call::h75334a5fed245bca [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x5747aa9f9eaf - std::panicking::panic_with_hook::h746880a052e02c85 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5747aa9f9d0a - std::panicking::panic_handler::{{closure}}::h14b95830f89d14b3 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5747aa9f4dd9 - std::sys::backtrace::__rust_end_short_backtrace::h7ddaac0e9609a83d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5747aa9dc95d - __rustc[76f7e7187978e2f8]::rust_begin_unwind [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5747aaa33660 - core::panicking::panic_fmt::heb245a301f4395db [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x5747aaa32e56 - core::result::unwrap_failed::h91bd1e1731f928fc [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x5747aa991630 - core::result::Result::unwrap::h95a9c69b7c73dc5a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x5747aa991630 - whats_a_png::png::tests::test_save_image::hf958f18db83c5a41 [INFO] [stdout] at /opt/rustwide/workdir/src/png.rs:319:37 [INFO] [stdout] 22: 0x5747aa9916c7 - whats_a_png::png::tests::test_save_image::{{closure}}::h3ac4e34109998ed8 [INFO] [stdout] at /opt/rustwide/workdir/src/png.rs:317:25 [INFO] [stdout] 23: 0x5747aa995166 - core::ops::function::FnOnce::call_once::hf20a4fcde8ef380b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5747aa9b984b - core::ops::function::FnOnce::call_once::h933a5d67211adff2 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5747aa9b984b - test::__rust_begin_short_backtrace::h2157af19b0990ffb [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5747aa9cf425 - test::run_test_in_process::{{closure}}::hc3b17e0f313c900a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5747aa9cf425 - as core::ops::function::FnOnce<()>>::call_once::ha23e4b490259273c [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5747aa9cf425 - std::panicking::catch_unwind::do_call::h8dc9d5da83792f7a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x5747aa9cf425 - std::panicking::catch_unwind::h0d8461330de4a18b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x5747aa9cf425 - std::panic::catch_unwind::h0321b51397bf9811 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5747aa9cf425 - test::run_test_in_process::hcaaa440fdbe4a513 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5747aa9cf425 - test::run_test::{{closure}}::h6345da602b85d6c3 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5747aa9a5c34 - test::run_test::{{closure}}::h90a3b75194d37b5d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5747aa9a5c34 - std::sys::backtrace::__rust_begin_short_backtrace::hae41a17001f53ede [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x5747aa9a94fa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h6ea895368381e0b1 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x5747aa9a94fa - as core::ops::function::FnOnce<()>>::call_once::h9c39013633bb9237 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5747aa9a94fa - std::panicking::catch_unwind::do_call::hac7dba9ee4d99108 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x5747aa9a94fa - std::panicking::catch_unwind::h73015d00e4866ebc [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x5747aa9a94fa - std::panic::catch_unwind::h6f7b38e188aa4f62 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5747aa9a94fa - std::thread::Builder::spawn_unchecked_::{{closure}}::h969a6a2dc1856df7 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x5747aa9a94fa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h269ad1ff23e72122 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5747aa9eff1f - as core::ops::function::FnOnce>::call_once::hdd09a470c130e806 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x5747aa9eff1f - std::sys::thread::unix::Thread::new::thread_start::h14ea1ba6e320367c [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x749488a59aa4 - [INFO] [stdout] 45: 0x749488ae6a34 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] png::tests::test_save_image [INFO] [stdout] [INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin whats-a-png` [INFO] running `Command { std: "docker" "inspect" "233a89763379948cb173f656d0fdc2d6d4ff7b74bb74c39933a376257d0383fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "233a89763379948cb173f656d0fdc2d6d4ff7b74bb74c39933a376257d0383fb", kill_on_drop: false }` [INFO] [stdout] 233a89763379948cb173f656d0fdc2d6d4ff7b74bb74c39933a376257d0383fb