[INFO] cloning repository https://github.com/mdesmet/kvstore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdesmet/kvstore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdesmet%2Fkvstore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdesmet%2Fkvstore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ea513869f44753745066d4f3c9353001deb53f1
[INFO] testing mdesmet/kvstore against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdesmet%2Fkvstore" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdesmet/kvstore
[INFO] finished tweaking git repo https://github.com/mdesmet/kvstore
[INFO] tweaked toml for git repo https://github.com/mdesmet/kvstore written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdesmet/kvstore on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdesmet/kvstore 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d15f99816f4568ee070751ce1d8709698bc2397fb87b496fba75995700f367e
[INFO] running `Command { std: "docker" "start" "-a" "3d15f99816f4568ee070751ce1d8709698bc2397fb87b496fba75995700f367e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d15f99816f4568ee070751ce1d8709698bc2397fb87b496fba75995700f367e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d15f99816f4568ee070751ce1d8709698bc2397fb87b496fba75995700f367e", kill_on_drop: false }`
[INFO] [stdout] 3d15f99816f4568ee070751ce1d8709698bc2397fb87b496fba75995700f367e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fc863e7626cb61f2af7222c2e5d996368f976defac3f15bdd62c94230f59631
[INFO] running `Command { std: "docker" "start" "-a" "7fc863e7626cb61f2af7222c2e5d996368f976defac3f15bdd62c94230f59631", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.69s
[INFO] running `Command { std: "docker" "inspect" "7fc863e7626cb61f2af7222c2e5d996368f976defac3f15bdd62c94230f59631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc863e7626cb61f2af7222c2e5d996368f976defac3f15bdd62c94230f59631", kill_on_drop: false }`
[INFO] [stdout] 7fc863e7626cb61f2af7222c2e5d996368f976defac3f15bdd62c94230f59631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3e8cb738037d2fbac5b42ba6576e8dc06beab774fbc3239d0a636afe2636dfe
[INFO] running `Command { std: "docker" "start" "-a" "d3e8cb738037d2fbac5b42ba6576e8dc06beab774fbc3239d0a636afe2636dfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling predicates-tree v1.0.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling predicates v2.0.0
[INFO] [stderr]    Compiling assert_cmd v1.0.7
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.99s
[INFO] running `Command { std: "docker" "inspect" "d3e8cb738037d2fbac5b42ba6576e8dc06beab774fbc3239d0a636afe2636dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e8cb738037d2fbac5b42ba6576e8dc06beab774fbc3239d0a636afe2636dfe", kill_on_drop: false }`
[INFO] [stdout] d3e8cb738037d2fbac5b42ba6576e8dc06beab774fbc3239d0a636afe2636dfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8993845d6ed023092657497c953ce75d7b1fdd828aeb78427d8c24a461606fce
[INFO] running `Command { std: "docker" "start" "-a" "8993845d6ed023092657497c953ce75d7b1fdd828aeb78427d8c24a461606fce", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kvs-af97c775ce2ba4da)
[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]      Running unittests src/bin/kvs.rs (/opt/rustwide/target/debug/deps/kvs-d45ce17ab658d891)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-dc197ddcdb178e4a)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test get_non_existent_value ... ok
[INFO] [stdout] test remove_non_existent_key ... ok
[INFO] [stdout] test get_stored_value ... ok
[INFO] [stdout] test overwrite_value ... ok
[INFO] [stdout] test remove_key ... ok
[INFO] [stdout] test cli_version ... ok
[INFO] [stdout] test cli_invalid_subcommand ... ok
[INFO] [stdout] test cli_rm_non_existent_key ... ok
[INFO] [stdout] test cli_invalid_get ... ok
[INFO] [stdout] test cli_get_stored ... ok
[INFO] [stdout] test cli_invalid_rm ... ok
[INFO] [stdout] test cli_set ... ok
[INFO] [stdout] test cli_rm_stored ... ok
[INFO] [stdout] test cli_invalid_set ... ok
[INFO] [stdout] test cli_get_non_existent_key ... ok
[INFO] [stdout] test cli_no_args ... ok
[INFO] [stdout] test compaction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 35.40s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kvs
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/kv.rs - kv::KvStore::set (line 51) ... FAILED
[INFO] [stdout] test src/kv.rs - kv::KvStore::remove (line 102) ... FAILED
[INFO] [stdout] test src/kv.rs - kv::KvStore::get (line 68) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/kv.rs - kv::KvStore::set (line 51) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (137) panicked at src/kv.rs:7:44:
[INFO] [stdout] Could not open file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout]    0: <failure::backtrace::internal::InternalBacktrace>::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/internal.rs:46:44
[INFO] [stdout]    1: <failure::backtrace::Backtrace>::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/mod.rs:121:35
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/error_impl.rs:19:17
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/mod.rs:36:18
[INFO] [stdout]    4: <core::result::Result<kvs::kv::KvStore, failure::error::Error> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible, std::io::error::Error>>>::from_residual
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:2189:27
[INFO] [stdout]    5: <kvs::kv::KvStore>::open
[INFO] [stdout]              at src/kv.rs:30:20
[INFO] [stdout]    6: rust_out::main::_doctest_main_src_kv_rs_51_0
[INFO] [stdout]    7: rust_out::main
[INFO] [stdout]    8: <fn() as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]    9: std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   10: std::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   11: <&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<i32, &dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::rt::lang_start_internal::{closure#0}
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<isize, std::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stdout]   12: std::rt::lang_start::<()>
[INFO] [stdout]   13: main
[INFO] [stdout]   14: <unknown>
[INFO] [stdout]   15: __libc_start_main
[INFO] [stdout]   16: _start
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5dfff044c14a - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5dfff044c14a - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5dfff044c14a - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5dfff044c14a - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5dfff045e7ca - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5dfff045e7ca - core[35159d6ffb30e017]::fmt::write
[INFO] [stdout]    6:     0x5dfff044fa22 - std[ec419fa8110287d5]::io::default_write_fmt::<std[ec419fa8110287d5]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x5dfff044fa22 - <std[ec419fa8110287d5]::sys::stdio::unix::Stderr as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x5dfff043717f - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5dfff043717f - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5dfff0447fb1 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5dfff044816b - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x5dfff0437238 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x5dfff042ecf9 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5dfff0437bdd - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x5dfff045ef8c - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5dfff045ecd2 - core[35159d6ffb30e017]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x5dfff035433d - <core[35159d6ffb30e017]::result::Result<kvs[459e8dcf1df020b0]::kv::KvStore, failure[5b5cb0d9dd815b27]::error::Error>>::expect
[INFO] [stdout]   18:     0x5dfff035449c - rust_out[999a937b1cc8d0f6]::main::_doctest_main_src_kv_rs_51_0
[INFO] [stdout]   19:     0x5dfff03542b6 - rust_out[999a937b1cc8d0f6]::main
[INFO] [stdout]   20:     0x5dfff0354623 - <fn() as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   21:     0x5dfff0354276 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   22:     0x5dfff0354289 - std[ec419fa8110287d5]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   23:     0x5dfff0447657 - <&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x5dfff0447657 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   25:     0x5dfff0447657 - std[ec419fa8110287d5]::panicking::catch_unwind::<i32, &dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   26:     0x5dfff0447657 - std[ec419fa8110287d5]::panic::catch_unwind::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x5dfff0447657 - std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x5dfff0447657 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5dfff0447657 - std[ec419fa8110287d5]::panicking::catch_unwind::<isize, std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5dfff0447657 - std[ec419fa8110287d5]::panic::catch_unwind::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5dfff0447657 - std[ec419fa8110287d5]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x5dfff0354261 - std[ec419fa8110287d5]::rt::lang_start::<()>
[INFO] [stdout]   33:     0x5dfff0354685 - main
[INFO] [stdout]   34:     0x7c73536da1ca - <unknown>
[INFO] [stdout]   35:     0x7c73536da28b - __libc_start_main
[INFO] [stdout]   36:     0x5dfff0354175 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/kv.rs - kv::KvStore::remove (line 102) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (138) panicked at src/kv.rs:7:44:
[INFO] [stdout] Could not open file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout]    0: <failure::backtrace::internal::InternalBacktrace>::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/internal.rs:46:44
[INFO] [stdout]    1: <failure::backtrace::Backtrace>::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/mod.rs:121:35
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/error_impl.rs:19:17
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/mod.rs:36:18
[INFO] [stdout]    4: <core::result::Result<kvs::kv::KvStore, failure::error::Error> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible, std::io::error::Error>>>::from_residual
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:2189:27
[INFO] [stdout]    5: <kvs::kv::KvStore>::open
[INFO] [stdout]              at src/kv.rs:30:20
[INFO] [stdout]    6: rust_out::main::_doctest_main_src_kv_rs_102_0
[INFO] [stdout]    7: rust_out::main
[INFO] [stdout]    8: <fn() as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]    9: std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   10: std::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   11: <&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<i32, &dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::rt::lang_start_internal::{closure#0}
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<isize, std::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stdout]   12: std::rt::lang_start::<()>
[INFO] [stdout]   13: main
[INFO] [stdout]   14: <unknown>
[INFO] [stdout]   15: __libc_start_main
[INFO] [stdout]   16: _start
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63d72228417a - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x63d72228417a - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x63d72228417a - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x63d72228417a - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x63d7222967fa - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x63d7222967fa - core[35159d6ffb30e017]::fmt::write
[INFO] [stdout]    6:     0x63d722287a52 - std[ec419fa8110287d5]::io::default_write_fmt::<std[ec419fa8110287d5]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x63d722287a52 - <std[ec419fa8110287d5]::sys::stdio::unix::Stderr as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x63d72226f1af - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x63d72226f1af - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x63d72227ffe1 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x63d72228019b - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x63d72226f268 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x63d722266d29 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x63d72226fc0d - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x63d722296fbc - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x63d722296d02 - core[35159d6ffb30e017]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x63d72218ac8d - <core[35159d6ffb30e017]::result::Result<kvs[459e8dcf1df020b0]::kv::KvStore, failure[5b5cb0d9dd815b27]::error::Error>>::expect
[INFO] [stdout]   18:     0x63d72218adef - rust_out[999a937b1cc8d0f6]::main::_doctest_main_src_kv_rs_102_0
[INFO] [stdout]   19:     0x63d72218ab26 - rust_out[999a937b1cc8d0f6]::main
[INFO] [stdout]   20:     0x63d72218b223 - <fn() as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   21:     0x63d72218aae6 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   22:     0x63d72218aaf9 - std[ec419fa8110287d5]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   23:     0x63d72227f687 - <&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x63d72227f687 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   25:     0x63d72227f687 - std[ec419fa8110287d5]::panicking::catch_unwind::<i32, &dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   26:     0x63d72227f687 - std[ec419fa8110287d5]::panic::catch_unwind::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x63d72227f687 - std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x63d72227f687 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x63d72227f687 - std[ec419fa8110287d5]::panicking::catch_unwind::<isize, std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x63d72227f687 - std[ec419fa8110287d5]::panic::catch_unwind::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x63d72227f687 - std[ec419fa8110287d5]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x63d72218aad1 - std[ec419fa8110287d5]::rt::lang_start::<()>
[INFO] [stdout]   33:     0x63d72218b285 - main
[INFO] [stdout]   34:     0x7699290c61ca - <unknown>
[INFO] [stdout]   35:     0x7699290c628b - __libc_start_main
[INFO] [stdout]   36:     0x63d72218a975 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/kv.rs - kv::KvStore::get (line 68) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (139) panicked at src/kv.rs:7:44:
[INFO] [stdout] Could not open file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout]    0: <failure::backtrace::internal::InternalBacktrace>::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/internal.rs:46:44
[INFO] [stdout]    1: <failure::backtrace::Backtrace>::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/mod.rs:121:35
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/error_impl.rs:19:17
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/mod.rs:36:18
[INFO] [stdout]    4: <core::result::Result<kvs::kv::KvStore, failure::error::Error> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible, std::io::error::Error>>>::from_residual
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:2189:27
[INFO] [stdout]    5: <kvs::kv::KvStore>::open
[INFO] [stdout]              at src/kv.rs:30:20
[INFO] [stdout]    6: rust_out::main::_doctest_main_src_kv_rs_68_0
[INFO] [stdout]    7: rust_out::main
[INFO] [stdout]    8: <fn() as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]    9: std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   10: std::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   11: <&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<i32, &dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<&dyn core::ops::function::Fn<(), Output = i32> + core::marker::Sync + core::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::rt::lang_start_internal::{closure#0}
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<isize, std::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stdout]   12: std::rt::lang_start::<()>
[INFO] [stdout]   13: main
[INFO] [stdout]   14: <unknown>
[INFO] [stdout]   15: __libc_start_main
[INFO] [stdout]   16: _start
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63947685b5ba - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x63947685b5ba - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x63947685b5ba - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x63947685b5ba - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x63947686dc3a - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x63947686dc3a - core[35159d6ffb30e017]::fmt::write
[INFO] [stdout]    6:     0x63947685ee92 - std[ec419fa8110287d5]::io::default_write_fmt::<std[ec419fa8110287d5]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x63947685ee92 - <std[ec419fa8110287d5]::sys::stdio::unix::Stderr as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x6394768465ef - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6394768465ef - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x639476857421 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x6394768575db - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x6394768466a8 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x63947683e169 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x63947684704d - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x63947686e3fc - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x63947686e142 - core[35159d6ffb30e017]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x63947676287d - <core[35159d6ffb30e017]::result::Result<kvs[459e8dcf1df020b0]::kv::KvStore, failure[5b5cb0d9dd815b27]::error::Error>>::expect
[INFO] [stdout]   18:     0x6394767629dc - rust_out[999a937b1cc8d0f6]::main::_doctest_main_src_kv_rs_68_0
[INFO] [stdout]   19:     0x639476762716 - rust_out[999a937b1cc8d0f6]::main
[INFO] [stdout]   20:     0x639476762e23 - <fn() as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   21:     0x6394767626d6 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   22:     0x6394767626e9 - std[ec419fa8110287d5]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   23:     0x639476856ac7 - <&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x639476856ac7 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   25:     0x639476856ac7 - std[ec419fa8110287d5]::panicking::catch_unwind::<i32, &dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   26:     0x639476856ac7 - std[ec419fa8110287d5]::panic::catch_unwind::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x639476856ac7 - std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x639476856ac7 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x639476856ac7 - std[ec419fa8110287d5]::panicking::catch_unwind::<isize, std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x639476856ac7 - std[ec419fa8110287d5]::panic::catch_unwind::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x639476856ac7 - std[ec419fa8110287d5]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x6394767626c1 - std[ec419fa8110287d5]::rt::lang_start::<()>
[INFO] [stdout]   33:     0x639476762e85 - main
[INFO] [stdout]   34:     0x7c33cd7361ca - <unknown>
[INFO] [stdout]   35:     0x7c33cd73628b - __libc_start_main
[INFO] [stdout]   36:     0x639476762595 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/kv.rs - kv::KvStore::get (line 68)
[INFO] [stdout]     src/kv.rs - kv::KvStore::remove (line 102)
[INFO] [stdout]     src/kv.rs - kv::KvStore::set (line 51)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "8993845d6ed023092657497c953ce75d7b1fdd828aeb78427d8c24a461606fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8993845d6ed023092657497c953ce75d7b1fdd828aeb78427d8c24a461606fce", kill_on_drop: false }`
[INFO] [stdout] 8993845d6ed023092657497c953ce75d7b1fdd828aeb78427d8c24a461606fce
