[INFO] fetching crate sync_cow 0.1.2...
[INFO] testing sync_cow-0.1.2 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate sync_cow 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate sync_cow 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate sync_cow 0.1.2
[INFO] tweaked toml for crates.io crate sync_cow 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sync_cow 0.1.2 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sync_cow 0.1.2 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `sync_cow` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc
[INFO] running `Command { std: "docker" "start" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `sync_cow` (manifest) generated 1 warning
[INFO] [stderr]    Compiling sync_cow v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `sync_cow` (manifest) generated 1 warning
[INFO] [stderr]    Compiling sync_cow v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 12.05s
[INFO] running `Command { std: "docker" "inspect" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/w0xel/sync_cow"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `sync_cow` (manifest) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/sync_cow/c0684efab72f189a/out/sync_cow-c0684efab72f189a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::race ... ok
[INFO] [stdout] test tests::cow_faster_than_rwlock_nosleep ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::cow_faster_than_rwlock_nosleep stdout ----
[INFO] [stdout] 9175
[INFO] [stdout] 9140
[INFO] [stdout] 9141
[INFO] [stdout] 9139
[INFO] [stdout] 8913
[INFO] [stdout] 9172
[INFO] [stdout] 9078
[INFO] [stdout] 9057
[INFO] [stdout] 9071
[INFO] [stdout] 8668
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (214) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (212) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (220) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (216) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (219) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (221) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (213) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (217) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (215) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (218) panicked at src/tests.rs:68:21:
[INFO] [stdout] Read did not read the last value of write
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f0819f5 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>
[INFO] [stdout]   11:     0x5f3c2f02b631 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<sync_cow[b16ac3144a7851ce]::tests::write_and_read_alot::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   12:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   13:     0x737941394dfa - <unknown>
[INFO] [stdout]   14:     0x7379414283d4 - clone
[INFO] [stdout]   15:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::cow_faster_than_rwlock_nosleep' (197) panicked at src/tests.rs:13:5:
[INFO] [stdout] SyncCow should be faster than RwLock for writing and reading alot
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f3c2f046357 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f3c2f02e76a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f3c2f04590b - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f3c2f0453ef - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f3c2f04501a - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f3c2f044b55 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x5f3c2f06b932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x5f3c2f06b8b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x5f3c2f06bdbc - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]    9:     0x5f3c2f02e5fb - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   10:     0x5f3c2f07d9d5 - <sync_cow[b16ac3144a7851ce]::tests::cow_faster_than_rwlock_nosleep::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   11:     0x5f3c2f0894eb - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   12:     0x5f3c2f08494f - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   13:     0x5f3c2f0843cc - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   14:     0x5f3c2f0a410c - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   15:     0x5f3c2f06d774 - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   16:     0x737941394dfa - <unknown>
[INFO] [stdout]   17:     0x7379414283d4 - clone
[INFO] [stdout]   18:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::cow_faster_than_rwlock_nosleep
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc", kill_on_drop: false }`
[INFO] [stdout] 351484c9fc515d967399452584b6ef47c62fac7f25a47413c42c4da2fc717dfc
