[INFO] fetching crate yaque 0.5.0-pre3...
[INFO] testing yaque-0.5.0-pre3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate yaque 0.5.0-pre3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate yaque 0.5.0-pre3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yaque 0.5.0-pre3
[INFO] finished tweaking crates.io crate yaque 0.5.0-pre3
[INFO] tweaked toml for crates.io crate yaque 0.5.0-pre3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-core v0.3.8
[INFO] [stderr]   Downloaded num-traits v0.2.14
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.1
[INFO] [stderr]   Downloaded futures-channel v0.3.8
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded futures-executor v0.3.8
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded filetime v0.2.13
[INFO] [stderr]   Downloaded fsevent-sys v3.0.2
[INFO] [stderr]   Downloaded rayon v1.5.0
[INFO] [stderr]   Downloaded ctor v0.1.17
[INFO] [stderr]   Downloaded futures-io v0.3.8
[INFO] [stderr]   Downloaded net2 v0.2.37
[INFO] [stderr]   Downloaded anymap v0.12.1
[INFO] [stderr]   Downloaded sysinfo v0.14.15
[INFO] [stderr]   Downloaded futures-macro v0.3.8
[INFO] [stderr]   Downloaded futures-task v0.3.8
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.19
[INFO] [stderr]   Downloaded futures-sink v0.3.8
[INFO] [stderr]   Downloaded futures v0.3.8
[INFO] [stderr]   Downloaded pin-project v1.0.2
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded futures-util v0.3.8
[INFO] [stderr]   Downloaded ntapi v0.3.6
[INFO] [stderr]   Downloaded mio-extras v2.0.6
[INFO] [stderr]   Downloaded rayon-core v1.9.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.0
[INFO] [stderr]   Downloaded mio v0.6.23
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded pin-project-internal v1.0.2
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded memoffset v0.6.1
[INFO] [stderr]   Downloaded futures-timer v3.0.2
[INFO] [stderr]   Downloaded fsevent v2.0.2
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded notify v5.0.0-pre.4
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.0
[INFO] [stderr]   Downloaded inotify-sys v0.1.4
[INFO] [stderr]   Downloaded inotify v0.8.3
[INFO] [stderr]   Downloaded miow v0.2.2
[INFO] [stderr]   Downloaded chrono v0.4.19
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded const_fn v0.4.4
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.1
[INFO] [stderr]   Downloaded simple_logger v1.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da9151ed3555df51019216a55440bca1fd191d77c8a8ec733a280eba483434a0
[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" "da9151ed3555df51019216a55440bca1fd191d77c8a8ec733a280eba483434a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da9151ed3555df51019216a55440bca1fd191d77c8a8ec733a280eba483434a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9151ed3555df51019216a55440bca1fd191d77c8a8ec733a280eba483434a0", kill_on_drop: false }`
[INFO] [stdout] da9151ed3555df51019216a55440bca1fd191d77c8a8ec733a280eba483434a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f43881d927f03edeb7fa0dd1a1ce6105cf0e1853e407bc93e55ab23fad27e34
[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" "0f43881d927f03edeb7fa0dd1a1ce6105cf0e1853e407bc93e55ab23fad27e34", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling sysinfo v0.14.15
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling inotify-sys v0.1.4
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling inotify v0.8.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v5.0.0-pre.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling yaque v0.5.0-pre3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.16s
[INFO] running `Command { std: "docker" "inspect" "0f43881d927f03edeb7fa0dd1a1ce6105cf0e1853e407bc93e55ab23fad27e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f43881d927f03edeb7fa0dd1a1ce6105cf0e1853e407bc93e55ab23fad27e34", kill_on_drop: false }`
[INFO] [stdout] 0f43881d927f03edeb7fa0dd1a1ce6105cf0e1853e407bc93e55ab23fad27e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ee24723c628141e8fd4c5c1346089458c055ce58f73360e4b26b64997ad113a
[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" "6ee24723c628141e8fd4c5c1346089458c055ce58f73360e4b26b64997ad113a", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling ctor v0.1.17
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling simple_logger v1.11.0
[INFO] [stderr]    Compiling yaque v0.5.0-pre3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.56s
[INFO] running `Command { std: "docker" "inspect" "6ee24723c628141e8fd4c5c1346089458c055ce58f73360e4b26b64997ad113a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee24723c628141e8fd4c5c1346089458c055ce58f73360e4b26b64997ad113a", kill_on_drop: false }`
[INFO] [stdout] 6ee24723c628141e8fd4c5c1346089458c055ce58f73360e4b26b64997ad113a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6d01da7da7e987696dfc63d13464b03b92fc5c642a162ad95a770b131e4365d
[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" "d6d01da7da7e987696dfc63d13464b03b92fc5c642a162ad95a770b131e4365d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yaque-62658f1b2472d6ba
[INFO] [stderr] thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/queue.rs:785:37
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55743b3d9867 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x55743b3d9867 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x55743b3d9867 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x55743b3d9867 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc33f3ac4cc9c4196
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x55743b3fcd2c - core::fmt::write::hfdcdeb08fb2b3afa
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]    5:     0x55743b3d51e2 - std::io::Write::write_fmt::h83a843778fa2a815
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15
[INFO] [stderr]    6:     0x55743b3dbfa5 - std::sys_common::backtrace::_print::hf179508b01f66878
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x55743b3dbfa5 - std::sys_common::backtrace::print::ha97d11adb39266a6
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x55743b3dbfa5 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x55743b3dbafa - std::panicking::default_hook::hbc0ee792993c2ef2
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x55743b3dc741 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:591:17
[INFO] [stderr]   11:     0x55743b3dc287 - std::panicking::begin_panic_handler::{{closure}}::hf3e83396e085962e
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:497:13
[INFO] [stderr]   12:     0x55743b3d9d2c - std::sys_common::backtrace::__rust_end_short_backtrace::hac151ac4c1e3252d
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   13:     0x55743b3dc1e9 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:493:5
[INFO] [stderr]   14:     0x55743b3fb6e1 - core::panicking::panic_fmt::hf6d8a92b065b8f97
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:92:14
[INFO] [stderr]   15:     0x55743b3fb503 - core::option::expect_none_failed::ha72f299eca314ad7
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/option.rs:1268:5
[INFO] [stderr]   16:     0x55743b278861 - core::result::Result<T,E>::unwrap::h0d87770bc9c9466c
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/result.rs:973:23
[INFO] [stderr]   17:     0x55743b10e669 - yaque::queue::init_log::hb969f02fdeb1dd12
[INFO] [stderr]                                at /opt/rustwide/workdir/src/queue.rs:785:5
[INFO] [stderr]   18:     0x55743b1000c6 - yaque::queue::init_log___rust_ctor___ctor::init_log___rust_ctor___ctor::h1c72ca34c750dee0
[INFO] [stderr]                                at /opt/rustwide/workdir/src/queue.rs:766:1
[INFO] [stderr]   19:     0x55743b40422d - __libc_csu_init
[INFO] [stderr]   20:     0x7f82cf989040 - __libc_start_main
[INFO] [stderr]   21:     0x55743b1000fe - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] fatal runtime error: failed to initiate panic, error 5
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/yaque-62658f1b2472d6ba` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "d6d01da7da7e987696dfc63d13464b03b92fc5c642a162ad95a770b131e4365d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d01da7da7e987696dfc63d13464b03b92fc5c642a162ad95a770b131e4365d", kill_on_drop: false }`
[INFO] [stdout] d6d01da7da7e987696dfc63d13464b03b92fc5c642a162ad95a770b131e4365d