[INFO] fetching crate png_pong 0.8.2... [INFO] testing png_pong-0.8.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] extracting crate png_pong 0.8.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate png_pong 0.8.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate png_pong 0.8.2 [INFO] finished tweaking crates.io crate png_pong 0.8.2 [INFO] tweaked toml for crates.io crate png_pong 0.8.2 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate crates.io crate png_pong 0.8.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ddbee99ffa6c64c9502a40179921556dcd233fed8866142817aa2653829ef7c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6ddbee99ffa6c64c9502a40179921556dcd233fed8866142817aa2653829ef7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ddbee99ffa6c64c9502a40179921556dcd233fed8866142817aa2653829ef7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ddbee99ffa6c64c9502a40179921556dcd233fed8866142817aa2653829ef7c", kill_on_drop: false }` [INFO] [stdout] 6ddbee99ffa6c64c9502a40179921556dcd233fed8866142817aa2653829ef7c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7835c3570abd34a89b334245687e55d7dd1b47de24e4a8b64de18aa354cec746 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7835c3570abd34a89b334245687e55d7dd1b47de24e4a8b64de18aa354cec746", kill_on_drop: false }` [INFO] [stderr] Compiling pix v0.13.1 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling png_pong v0.8.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [optimized + debuginfo] target(s) in 6.92s [INFO] running `Command { std: "docker" "inspect" "7835c3570abd34a89b334245687e55d7dd1b47de24e4a8b64de18aa354cec746", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7835c3570abd34a89b334245687e55d7dd1b47de24e4a8b64de18aa354cec746", kill_on_drop: false }` [INFO] [stdout] 7835c3570abd34a89b334245687e55d7dd1b47de24e4a8b64de18aa354cec746 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 869b1a37e67d787e1c440348de0905c70cefea0dc5c3b20ff37d27261118222d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "869b1a37e67d787e1c440348de0905c70cefea0dc5c3b20ff37d27261118222d", kill_on_drop: false }` [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling plotters-backend v0.3.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling half v1.7.1 [INFO] [stderr] Compiling oorandom v11.1.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling plotters-svg v0.3.0 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling crossbeam-epoch v0.9.4 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling semver-parser v0.10.2 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling plotters v0.3.0 [INFO] [stderr] Compiling semver v0.11.0 [INFO] [stderr] Compiling rustc_version v0.3.3 [INFO] [stderr] Compiling cast v0.2.6 [INFO] [stderr] Compiling bstr v0.2.16 [INFO] [stderr] Compiling serde_cbor v0.11.1 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling criterion-plot v0.4.3 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling criterion v0.3.4 [INFO] [stderr] Compiling png_pong v0.8.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [optimized + debuginfo] target(s) in 1m 28s [INFO] running `Command { std: "docker" "inspect" "869b1a37e67d787e1c440348de0905c70cefea0dc5c3b20ff37d27261118222d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "869b1a37e67d787e1c440348de0905c70cefea0dc5c3b20ff37d27261118222d", kill_on_drop: false }` [INFO] [stdout] 869b1a37e67d787e1c440348de0905c70cefea0dc5c3b20ff37d27261118222d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7ef0fa773d71905d1b67f2dbee427848dac5b899a9f4683b627a4d8aa90ed1cb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7ef0fa773d71905d1b67f2dbee427848dac5b899a9f4683b627a4d8aa90ed1cb", kill_on_drop: false }` [INFO] [stderr] Finished test [optimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/png_pong-8cf9bb0e39f47de1) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests png_pong [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 21) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 21) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'Failed to save image: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:12:41 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5557f7e25720 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x5557f7e25720 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5557f7e25720 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x5557f7e25720 - ::fmt::h2a772198c4032452 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x5557f7e3f35c - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/fmt/mod.rs:1115:17 [INFO] [stdout] 5: 0x5557f7e24035 - std::io::Write::write_fmt::h00f38d9eb2c32e02 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/io/mod.rs:1663:15 [INFO] [stdout] 6: 0x5557f7e2734b - std::sys_common::backtrace::_print::h5b3c171e6f864ae4 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x5557f7e2734b - std::sys_common::backtrace::print::h93b9e9ed2a98e611 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x5557f7e2734b - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x5557f7e26e21 - std::panicking::default_hook::hdbc8b2951c5afbab [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x5557f7e27a14 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x5557f7e274f7 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x5557f7e25c1c - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x5557f7e27459 - rust_begin_unwind [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x5557f7de2381 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x5557f7de2413 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/result.rs:1355:5 [INFO] [stdout] 16: 0x5557f7dec56f - core::result::Result::expect::h9a95debc43032927 [INFO] [stdout] 17: 0x5557f7e04951 - rust_out::main::_doctest_main_src_lib_rs_21_0::h7aa3d5c91cec9d72 [INFO] [stdout] 18: 0x5557f7e045f6 - rust_out::main::h61823b600df25383 [INFO] [stdout] 19: 0x5557f7de68e3 - core::ops::function::FnOnce::call_once::h6cb22c19cf103035 [INFO] [stdout] 20: 0x5557f7de4789 - std::sys_common::backtrace::__rust_begin_short_backtrace::h755618c0981a0533 [INFO] [stdout] 21: 0x5557f7de4f09 - std::rt::lang_start::{{closure}}::h3e3e948d2e1cdd2b [INFO] [stdout] 22: 0x5557f7e27f1a - core::ops::function::impls:: for &F>::call_once::hcbe5785d54a49ce2 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 23: 0x5557f7e27f1a - std::panicking::try::do_call::h1c15e7ee8563c29d [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:401:40 [INFO] [stdout] 24: 0x5557f7e27f1a - std::panicking::try::hb8b07cef009cb4fc [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:365:19 [INFO] [stdout] 25: 0x5557f7e27f1a - std::panic::catch_unwind::h65a8efbe596bcbb1 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panic.rs:434:14 [INFO] [stdout] 26: 0x5557f7e27f1a - std::rt::lang_start_internal::{{closure}}::h66ded7ab0f18e9fb [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/rt.rs:45:48 [INFO] [stdout] 27: 0x5557f7e27f1a - std::panicking::try::do_call::h29cafa65efb3f3f3 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:401:40 [INFO] [stdout] 28: 0x5557f7e27f1a - std::panicking::try::h412fc5378b4dbfc4 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:365:19 [INFO] [stdout] 29: 0x5557f7e27f1a - std::panic::catch_unwind::h555def6aac5bf192 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panic.rs:434:14 [INFO] [stdout] 30: 0x5557f7e27f1a - std::rt::lang_start_internal::hfff48202d7fee6e3 [INFO] [stdout] at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/rt.rs:45:20 [INFO] [stdout] 31: 0x5557f7de4ee1 - std::rt::lang_start::ha47a1fac43a2373f [INFO] [stdout] 32: 0x5557f7e04b93 - main [INFO] [stdout] 33: 0x7f98218050b3 - __libc_start_main [INFO] [stdout] 34: 0x5557f7de2ade - _start [INFO] [stdout] 35: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 21) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.02s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "7ef0fa773d71905d1b67f2dbee427848dac5b899a9f4683b627a4d8aa90ed1cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ef0fa773d71905d1b67f2dbee427848dac5b899a9f4683b627a4d8aa90ed1cb", kill_on_drop: false }` [INFO] [stdout] 7ef0fa773d71905d1b67f2dbee427848dac5b899a9f4683b627a4d8aa90ed1cb