[INFO] fetching crate png_pong 0.8.2... [INFO] testing png_pong-0.8.2 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [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 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d465629a04f02d9180dec720c352bb7bac178e9a425c8048e315c415ac14d760 [INFO] running `Command { std: "docker" "start" "-a" "d465629a04f02d9180dec720c352bb7bac178e9a425c8048e315c415ac14d760", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d465629a04f02d9180dec720c352bb7bac178e9a425c8048e315c415ac14d760", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d465629a04f02d9180dec720c352bb7bac178e9a425c8048e315c415ac14d760", kill_on_drop: false }` [INFO] [stdout] d465629a04f02d9180dec720c352bb7bac178e9a425c8048e315c415ac14d760 [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9e56aae359dd1b2c85f83039b5014e94841300335cbc98503cb6eb2118f94b74 [INFO] running `Command { std: "docker" "start" "-a" "9e56aae359dd1b2c85f83039b5014e94841300335cbc98503cb6eb2118f94b74", 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 6.56s [INFO] running `Command { std: "docker" "inspect" "9e56aae359dd1b2c85f83039b5014e94841300335cbc98503cb6eb2118f94b74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e56aae359dd1b2c85f83039b5014e94841300335cbc98503cb6eb2118f94b74", kill_on_drop: false }` [INFO] [stdout] 9e56aae359dd1b2c85f83039b5014e94841300335cbc98503cb6eb2118f94b74 [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 95492fda3348edde160c0d5bf82ba8b5dd78c878a4e0f4cfb17633f2da79f6d0 [INFO] running `Command { std: "docker" "start" "-a" "95492fda3348edde160c0d5bf82ba8b5dd78c878a4e0f4cfb17633f2da79f6d0", kill_on_drop: false }` [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling plotters-backend v0.3.0 [INFO] [stderr] Compiling half v1.7.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling oorandom v11.1.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling plotters-svg v0.3.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling crossbeam-epoch v0.9.4 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling semver-parser v0.10.2 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling plotters v0.3.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling atty v0.2.14 [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 csv v1.1.6 [INFO] [stderr] Compiling criterion-plot v0.4.3 [INFO] [stderr] Compiling tinytemplate v1.2.1 [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 18s [INFO] running `Command { std: "docker" "inspect" "95492fda3348edde160c0d5bf82ba8b5dd78c878a4e0f4cfb17633f2da79f6d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95492fda3348edde160c0d5bf82ba8b5dd78c878a4e0f4cfb17633f2da79f6d0", kill_on_drop: false }` [INFO] [stdout] 95492fda3348edde160c0d5bf82ba8b5dd78c878a4e0f4cfb17633f2da79f6d0 [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 41b7028e6e94c715bc4209e217f5d166588851b6a3052a0258269d1e78bedc4c [INFO] running `Command { std: "docker" "start" "-a" "41b7028e6e94c715bc4209e217f5d166588851b6a3052a0258269d1e78bedc4c", kill_on_drop: false }` [INFO] [stderr] Finished test [optimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/png_pong-9713b25b944960e3) [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: Other, message: "Read-only file system" }', src/lib.rs:12:41 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557dd24dd550 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x557dd24dd550 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557dd24dd550 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x557dd24dd550 - ::fmt::h767e17e1aa7df6a8 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x557dd24f6ffc - core::fmt::write::h7aa6cd0067dca82a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17 [INFO] [stdout] 5: 0x557dd24dbe65 - std::io::Write::write_fmt::h4c802b6f761026c1 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15 [INFO] [stdout] 6: 0x557dd24df17b - std::sys_common::backtrace::_print::h2769edb26a7eb606 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x557dd24df17b - std::sys_common::backtrace::print::ha71f3549862b4cb6 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x557dd24df17b - std::panicking::default_hook::{{closure}}::h95488a3bade217f6 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x557dd24dec51 - std::panicking::default_hook::h290aa602c0fb11df [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x557dd24df821 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x557dd24df327 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x557dd24dda2c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x557dd24df289 - rust_begin_unwind [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x557dd249a391 - core::panicking::panic_fmt::hbe99dddd3092ba3c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x557dd249a423 - core::result::unwrap_failed::hf79563fef9d11ab8 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1355:5 [INFO] [stdout] 16: 0x557dd24a47cf - core::result::Result::expect::h60fd63d9954ada02 [INFO] [stdout] 17: 0x557dd24bccc1 - rust_out::main::_doctest_main_src_lib_rs_21_0::h435286c11a47db4e [INFO] [stdout] 18: 0x557dd24bc966 - rust_out::main::h2a38bb51b9580a7d [INFO] [stdout] 19: 0x557dd249e723 - core::ops::function::FnOnce::call_once::h2b2994027e3ddb49 [INFO] [stdout] 20: 0x557dd249c839 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0646a71575223ddb [INFO] [stdout] 21: 0x557dd249cfd9 - std::rt::lang_start::{{closure}}::h56dae38fc2742666 [INFO] [stdout] 22: 0x557dd24dfd19 - core::ops::function::impls:: for &F>::call_once::h04259e4a34d07c2f [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 23: 0x557dd24dfd19 - std::panicking::try::do_call::hb8da45704d5cfbbf [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 24: 0x557dd24dfd19 - std::panicking::try::h4beadc19a78fec52 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 25: 0x557dd24dfd19 - std::panic::catch_unwind::hc58016cd36ba81a4 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14 [INFO] [stdout] 26: 0x557dd24dfd19 - std::rt::lang_start_internal::hc51399759a90501a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/rt.rs:34:21 [INFO] [stdout] 27: 0x557dd249cfc1 - std::rt::lang_start::h186ee2dda057dd14 [INFO] [stdout] 28: 0x557dd24bcf03 - main [INFO] [stdout] 29: 0x7f1c5935d0b3 - __libc_start_main [INFO] [stdout] 30: 0x557dd249aaee - _start [INFO] [stdout] 31: 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 0.81s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "41b7028e6e94c715bc4209e217f5d166588851b6a3052a0258269d1e78bedc4c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41b7028e6e94c715bc4209e217f5d166588851b6a3052a0258269d1e78bedc4c", kill_on_drop: false }` [INFO] [stdout] 41b7028e6e94c715bc4209e217f5d166588851b6a3052a0258269d1e78bedc4c