[INFO] fetching crate jsave 0.1.1... [INFO] testing jsave-0.1.1 against 1.59.0 for beta-1.60-1 [INFO] extracting crate jsave 0.1.1 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate jsave 0.1.1 on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate jsave 0.1.1 [INFO] finished tweaking crates.io crate jsave 0.1.1 [INFO] tweaked toml for crates.io crate jsave 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 230f18625a714cf435d4df8adf048e8b38518827c991ca452d35a3d7c9bcea80 [INFO] running `Command { std: "docker" "start" "-a" "230f18625a714cf435d4df8adf048e8b38518827c991ca452d35a3d7c9bcea80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "230f18625a714cf435d4df8adf048e8b38518827c991ca452d35a3d7c9bcea80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "230f18625a714cf435d4df8adf048e8b38518827c991ca452d35a3d7c9bcea80", kill_on_drop: false }` [INFO] [stdout] 230f18625a714cf435d4df8adf048e8b38518827c991ca452d35a3d7c9bcea80 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8d32194571c2f950c22887f964fc19bcc58ec36b605b032d8cc6c0f5c67f8a4f [INFO] running `Command { std: "docker" "start" "-a" "8d32194571c2f950c22887f964fc19bcc58ec36b605b032d8cc6c0f5c67f8a4f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling parking_lot_core v0.9.1 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling parking_lot v0.12.0 [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Compiling jsave v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.61s [INFO] running `Command { std: "docker" "inspect" "8d32194571c2f950c22887f964fc19bcc58ec36b605b032d8cc6c0f5c67f8a4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d32194571c2f950c22887f964fc19bcc58ec36b605b032d8cc6c0f5c67f8a4f", kill_on_drop: false }` [INFO] [stdout] 8d32194571c2f950c22887f964fc19bcc58ec36b605b032d8cc6c0f5c67f8a4f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3fd06b9830d0468a05832a5392fc7b9a0eda9f263614b0a8b88ce43069df808a [INFO] running `Command { std: "docker" "start" "-a" "3fd06b9830d0468a05832a5392fc7b9a0eda9f263614b0a8b88ce43069df808a", kill_on_drop: false }` [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling jsave v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 7.20s [INFO] running `Command { std: "docker" "inspect" "3fd06b9830d0468a05832a5392fc7b9a0eda9f263614b0a8b88ce43069df808a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fd06b9830d0468a05832a5392fc7b9a0eda9f263614b0a8b88ce43069df808a", kill_on_drop: false }` [INFO] [stdout] 3fd06b9830d0468a05832a5392fc7b9a0eda9f263614b0a8b88ce43069df808a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5a034ccf4125848d429c1172818b3baf9b78105e02857f9111abdfc1a447da95 [INFO] running `Command { std: "docker" "start" "-a" "5a034ccf4125848d429c1172818b3baf9b78105e02857f9111abdfc1a447da95", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/jsave-0cdeb3c43c79d11a) [INFO] [stdout] [INFO] [stderr] Doc-tests jsave [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] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 14) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 14) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:20:25 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55de80d8488c - std::backtrace_rs::backtrace::libunwind::trace::h91c465e73bf6c785 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55de80d8488c - std::backtrace_rs::backtrace::trace_unsynchronized::hae9da36f5d58b5f3 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55de80d8488c - std::sys_common::backtrace::_print_fmt::h7f499fa126a7effb [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55de80d8488c - ::fmt::h3e2b509ce2ce6007 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55de80da54fc - core::fmt::write::h753c7571fa063ecb [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/fmt/mod.rs:1168:17 [INFO] [stdout] 5: 0x55de80d81563 - std::io::Write::write_fmt::h2815c0519c99ba09 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/io/mod.rs:1660:15 [INFO] [stdout] 6: 0x55de80d868c2 - std::sys_common::backtrace::_print::h64941a6fc8b0ed9b [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55de80d868c2 - std::sys_common::backtrace::print::hcf25e43e1a9b0766 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55de80d868c2 - std::panicking::default_hook::{{closure}}::h78d3e6cf97fc623d [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x55de80d864a5 - std::panicking::default_hook::hda898f8d3ad1a5ae [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:228:9 [INFO] [stdout] 10: 0x55de80d86f13 - std::panicking::rust_panic_with_hook::h1a5ea2d6c23051aa [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x55de80d86c30 - std::panicking::begin_panic_handler::{{closure}}::h07f549390938b73f [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x55de80d84d34 - std::sys_common::backtrace::__rust_end_short_backtrace::h5ec3758a92cfb00d [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x55de80d86969 - rust_begin_unwind [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x55de80d37371 - core::panicking::panic_fmt::h3a79a6a99affe1d5 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/panicking.rs:116:14 [INFO] [stdout] 15: 0x55de80d37463 - core::result::unwrap_failed::ha0327e3803285d6e [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/result.rs:1690:5 [INFO] [stdout] 16: 0x55de80d4c689 - core::result::Result::unwrap::hf74df10120c4b463 [INFO] [stdout] 17: 0x55de80d381e8 - rust_out::main::_doctest_main_src_lib_rs_14_0::h05b242f92f96d1c8 [INFO] [stdout] 18: 0x55de80d38156 - rust_out::main::h0a91ec602d6ccf7b [INFO] [stdout] 19: 0x55de80d37c73 - core::ops::function::FnOnce::call_once::hf13fd7d7764c57e3 [INFO] [stdout] 20: 0x55de80d4d599 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0721740d13b54d33 [INFO] [stdout] 21: 0x55de80d4d249 - std::rt::lang_start::{{closure}}::h942b0ebbf6e45677 [INFO] [stdout] 22: 0x55de80d83f40 - core::ops::function::impls:: for &F>::call_once::h443f738a8e9f947a [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 23: 0x55de80d83f40 - std::panicking::try::do_call::h1e21ba261ba489ec [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:406:40 [INFO] [stdout] 24: 0x55de80d83f40 - std::panicking::try::h6afd48af8b6c96ac [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:370:19 [INFO] [stdout] 25: 0x55de80d83f40 - std::panic::catch_unwind::h85dd95e0bab7fb60 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panic.rs:133:14 [INFO] [stdout] 26: 0x55de80d83f40 - std::rt::lang_start_internal::{{closure}}::h038455e697c8b03e [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/rt.rs:128:48 [INFO] [stdout] 27: 0x55de80d83f40 - std::panicking::try::do_call::h6b0ad65979f3077a [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:406:40 [INFO] [stdout] 28: 0x55de80d83f40 - std::panicking::try::h010108d314169ac6 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panicking.rs:370:19 [INFO] [stdout] 29: 0x55de80d83f40 - std::panic::catch_unwind::hff397f912b1535c2 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/panic.rs:133:14 [INFO] [stdout] 30: 0x55de80d83f40 - std::rt::lang_start_internal::h52e73755f77c7dd9 [INFO] [stdout] at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/rt.rs:128:20 [INFO] [stdout] 31: 0x55de80d4d231 - std::rt::lang_start::ha5571370df8ae5c1 [INFO] [stdout] 32: 0x55de80d4f333 - main [INFO] [stdout] 33: 0x7f9c26b7f0b3 - __libc_start_main [INFO] [stdout] 34: 0x55de80d37ace - _start [INFO] [stdout] 35: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 14) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.22s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "5a034ccf4125848d429c1172818b3baf9b78105e02857f9111abdfc1a447da95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a034ccf4125848d429c1172818b3baf9b78105e02857f9111abdfc1a447da95", kill_on_drop: false }` [INFO] [stdout] 5a034ccf4125848d429c1172818b3baf9b78105e02857f9111abdfc1a447da95