[INFO] crate savefile 0.7.2 is already in cache [INFO] testing savefile-0.7.2 against beta-2020-07-24 for beta-1.46-1 [INFO] extracting crate savefile 0.7.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate savefile 0.7.2 on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate savefile 0.7.2 [INFO] finished tweaking crates.io crate savefile 0.7.2 [INFO] tweaked toml for crates.io crate savefile 0.7.2 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 27e4a24d75c59c355095a656ab74a548747162c377c7b2a962bd16c1987fff69 [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" "27e4a24d75c59c355095a656ab74a548747162c377c7b2a962bd16c1987fff69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "27e4a24d75c59c355095a656ab74a548747162c377c7b2a962bd16c1987fff69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27e4a24d75c59c355095a656ab74a548747162c377c7b2a962bd16c1987fff69", kill_on_drop: false }` [INFO] [stdout] 27e4a24d75c59c355095a656ab74a548747162c377c7b2a962bd16c1987fff69 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 36a228d4bf3ba76d0195469d40822820bdddfed0693a523dec08cf7624cdddc4 [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" "36a228d4bf3ba76d0195469d40822820bdddfed0693a523dec08cf7624cdddc4", kill_on_drop: false }` [INFO] [stderr] Compiling bit-vec v0.6.2 [INFO] [stderr] Compiling ring v0.16.15 [INFO] [stderr] Compiling savefile v0.7.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/lib.rs:3741:39 [INFO] [stdout] | [INFO] [stdout] 3741 | fn introspect_child<'a>(&'a self, index: usize) -> Option>> { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.94s [INFO] running `Command { std: "docker" "inspect" "36a228d4bf3ba76d0195469d40822820bdddfed0693a523dec08cf7624cdddc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36a228d4bf3ba76d0195469d40822820bdddfed0693a523dec08cf7624cdddc4", kill_on_drop: false }` [INFO] [stdout] 36a228d4bf3ba76d0195469d40822820bdddfed0693a523dec08cf7624cdddc4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 759a9e4ecf6df33d0fd4d62db8f839c1cd50324aeab0adeb1ecdd5021affa77e [INFO] running `Command { std: "docker" "start" "-a" "759a9e4ecf6df33d0fd4d62db8f839c1cd50324aeab0adeb1ecdd5021affa77e", kill_on_drop: false }` [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/lib.rs:3741:39 [INFO] [stdout] | [INFO] [stdout] 3741 | fn introspect_child<'a>(&'a self, index: usize) -> Option>> { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling savefile-derive v0.7.2 [INFO] [stderr] Compiling savefile v0.7.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/lib.rs:3741:39 [INFO] [stdout] | [INFO] [stdout] 3741 | fn introspect_child<'a>(&'a self, index: usize) -> Option>> { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 7.99s [INFO] running `Command { std: "docker" "inspect" "759a9e4ecf6df33d0fd4d62db8f839c1cd50324aeab0adeb1ecdd5021affa77e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "759a9e4ecf6df33d0fd4d62db8f839c1cd50324aeab0adeb1ecdd5021affa77e", kill_on_drop: false }` [INFO] [stdout] 759a9e4ecf6df33d0fd4d62db8f839c1cd50324aeab0adeb1ecdd5021affa77e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 866fa310be8792f7dc0a1bbf58e9cd026921b63cee3f748a559cdb91ad929a88 [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" "866fa310be8792f7dc0a1bbf58e9cd026921b63cee3f748a559cdb91ad929a88", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/lib.rs:3741:39 [INFO] [stderr] | [INFO] [stderr] 3741 | fn introspect_child<'a>(&'a self, index: usize) -> Option>> { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/lib.rs:3741:39 [INFO] [stderr] | [INFO] [stderr] 3741 | fn introspect_child<'a>(&'a self, index: usize) -> Option>> { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/savefile-0f5be64664908f0e [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 [INFO] [stdout] [INFO] [stderr] Doc-tests savefile [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test src/lib.rs - (line 423) ... ok [INFO] [stdout] test src/lib.rs - (line 398) ... ok [INFO] [stdout] test src/lib.rs - (line 409) ... ok [INFO] [stdout] test src/lib.rs - (line 354) ... ok [INFO] [stdout] test src/lib.rs - (line 244) ... ok [INFO] [stdout] test src/lib.rs - (line 296) ... ok [INFO] [stdout] test src/lib.rs - (line 548) ... ok [INFO] [stdout] test src/lib.rs - (line 341) ... ok [INFO] [stdout] test src/lib.rs - (line 218) ... ok [INFO] [stdout] test src/lib.rs - (line 273) ... ok [INFO] [stdout] test src/lib.rs - (line 315) ... ok [INFO] [stdout] test src/lib.rs - (line 437) ... FAILED [INFO] [stdout] test src/lib.rs - (line 77) ... FAILED [INFO] [stdout] test src/lib.rs - (line 497) ... ok [INFO] [stdout] test src/lib.rs - (line 29) ... FAILED [INFO] [stdout] test src/lib.rs - (line 573) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 437) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: IOError { io_error: Os { code: 2, kind: NotFound, message: "No such file or directory" } }', src/lib.rs:33:37 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x56417d4e1f85 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x56417d4e1f85 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x56417d4e1f85 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x56417d4e1f85 - ::fmt::hdb4a83d2b61107e5 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x56417d4ff85c - core::fmt::write::ha20e7262fa3e8a7a [INFO] [stdout] at src/libcore/fmt/mod.rs:1076 [INFO] [stdout] 5: 0x56417d4e0642 - std::io::Write::write_fmt::h1aebfe8a5a79e36d [INFO] [stdout] at src/libstd/io/mod.rs:1537 [INFO] [stdout] 6: 0x56417d4e43c0 - std::sys_common::backtrace::_print::h9c07314cc66ba539 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 7: 0x56417d4e43c0 - std::sys_common::backtrace::print::hd1fd65f49a2d8544 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 8: 0x56417d4e43c0 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 9: 0x56417d4e410c - std::panicking::default_hook::hc5868949d129ed00 [INFO] [stdout] at src/libstd/panicking.rs:217 [INFO] [stdout] 10: 0x56417d4e4a03 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8 [INFO] [stdout] at src/libstd/panicking.rs:526 [INFO] [stdout] 11: 0x56417d4e45fb - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:437 [INFO] [stdout] 12: 0x56417d4fec61 - core::panicking::panic_fmt::h17139c2000299725 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 13: 0x56417d4fea83 - core::option::expect_none_failed::h972f96abb4ec8952 [INFO] [stdout] at src/libcore/option.rs:1269 [INFO] [stdout] 14: 0x56417d49ddd0 - core::result::Result::unwrap::h5f09b8806500da29 [INFO] [stdout] 15: 0x56417d4a4cbb - rust_out::load_player::hf54217805c04cfc0 [INFO] [stdout] 16: 0x56417d4a4cee - rust_out::main::h405f65324f7b53be [INFO] [stdout] 17: 0x56417d49b2a3 - std::rt::lang_start::{{closure}}::ha8395b9615e12984 [INFO] [stdout] 18: 0x56417d4e4dd3 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70 [INFO] [stdout] at src/libstd/rt.rs:52 [INFO] [stdout] 19: 0x56417d4e4dd3 - std::panicking::try::do_call::he8e1d689a3e26def [INFO] [stdout] at src/libstd/panicking.rs:348 [INFO] [stdout] 20: 0x56417d4e4dd3 - std::panicking::try::h264b6eebc2fa7bbf [INFO] [stdout] at src/libstd/panicking.rs:325 [INFO] [stdout] 21: 0x56417d4e4dd3 - std::panic::catch_unwind::hbf28fafa723b2128 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 22: 0x56417d4e4dd3 - std::rt::lang_start_internal::he959aa59bc3ec202 [INFO] [stdout] at src/libstd/rt.rs:51 [INFO] [stdout] 23: 0x56417d49b288 - std::rt::lang_start::hf91fc87199e1c84e [INFO] [stdout] 24: 0x56417d4a6acb - main [INFO] [stdout] 25: 0x7f4a85df90b3 - __libc_start_main [INFO] [stdout] 26: 0x56417d49818e - _start [INFO] [stdout] 27: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 77) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: IOError { io_error: Os { code: 2, kind: NotFound, message: "No such file or directory" } }', src/lib.rs:27:37 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55b24673c625 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x55b24673c625 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55b24673c625 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x55b24673c625 - ::fmt::hdb4a83d2b61107e5 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x55b246759efc - core::fmt::write::ha20e7262fa3e8a7a [INFO] [stdout] at src/libcore/fmt/mod.rs:1076 [INFO] [stdout] 5: 0x55b24673ace2 - std::io::Write::write_fmt::h1aebfe8a5a79e36d [INFO] [stdout] at src/libstd/io/mod.rs:1537 [INFO] [stdout] 6: 0x55b24673ea60 - std::sys_common::backtrace::_print::h9c07314cc66ba539 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 7: 0x55b24673ea60 - std::sys_common::backtrace::print::hd1fd65f49a2d8544 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 8: 0x55b24673ea60 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 9: 0x55b24673e7ac - std::panicking::default_hook::hc5868949d129ed00 [INFO] [stdout] at src/libstd/panicking.rs:217 [INFO] [stdout] 10: 0x55b24673f0a3 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8 [INFO] [stdout] at src/libstd/panicking.rs:526 [INFO] [stdout] 11: 0x55b24673ec9b - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:437 [INFO] [stdout] 12: 0x55b246759301 - core::panicking::panic_fmt::h17139c2000299725 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 13: 0x55b246759123 - core::option::expect_none_failed::h972f96abb4ec8952 [INFO] [stdout] at src/libcore/option.rs:1269 [INFO] [stdout] 14: 0x55b2466fa460 - core::result::Result::unwrap::h2ca6f99dc8c30223 [INFO] [stdout] 15: 0x55b2466ffc7c - rust_out::load_player::hb84cee195f008784 [INFO] [stdout] 16: 0x55b2466ffcb3 - rust_out::main::h405f65324f7b53be [INFO] [stdout] 17: 0x55b2466f82e3 - std::rt::lang_start::{{closure}}::ha8395b9615e12984 [INFO] [stdout] 18: 0x55b24673f473 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70 [INFO] [stdout] at src/libstd/rt.rs:52 [INFO] [stdout] 19: 0x55b24673f473 - std::panicking::try::do_call::he8e1d689a3e26def [INFO] [stdout] at src/libstd/panicking.rs:348 [INFO] [stdout] 20: 0x55b24673f473 - std::panicking::try::h264b6eebc2fa7bbf [INFO] [stdout] at src/libstd/panicking.rs:325 [INFO] [stdout] 21: 0x55b24673f473 - std::panic::catch_unwind::hbf28fafa723b2128 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 22: 0x55b24673f473 - std::rt::lang_start_internal::he959aa59bc3ec202 [INFO] [stdout] at src/libstd/rt.rs:51 [INFO] [stdout] 23: 0x55b2466f82c8 - std::rt::lang_start::hf91fc87199e1c84e [INFO] [stdout] 24: 0x55b2467011cb - main [INFO] [stdout] 25: 0x7fd8f28b60b3 - __libc_start_main [INFO] [stdout] 26: 0x55b2466f518e - _start [INFO] [stdout] 27: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 29) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: IOError { io_error: Os { code: 30, kind: Other, message: "Read-only file system" } }', src/lib.rs:17:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5588d796f465 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x5588d796f465 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x5588d796f465 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x5588d796f465 - ::fmt::hdb4a83d2b61107e5 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x5588d798cd3c - core::fmt::write::ha20e7262fa3e8a7a [INFO] [stdout] at src/libcore/fmt/mod.rs:1076 [INFO] [stdout] 5: 0x5588d796db22 - std::io::Write::write_fmt::h1aebfe8a5a79e36d [INFO] [stdout] at src/libstd/io/mod.rs:1537 [INFO] [stdout] 6: 0x5588d79718a0 - std::sys_common::backtrace::_print::h9c07314cc66ba539 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 7: 0x5588d79718a0 - std::sys_common::backtrace::print::hd1fd65f49a2d8544 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 8: 0x5588d79718a0 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 9: 0x5588d79715ec - std::panicking::default_hook::hc5868949d129ed00 [INFO] [stdout] at src/libstd/panicking.rs:217 [INFO] [stdout] 10: 0x5588d7971ee3 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8 [INFO] [stdout] at src/libstd/panicking.rs:526 [INFO] [stdout] 11: 0x5588d7971adb - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:437 [INFO] [stdout] 12: 0x5588d798c141 - core::panicking::panic_fmt::h17139c2000299725 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 13: 0x5588d798bf63 - core::option::expect_none_failed::h972f96abb4ec8952 [INFO] [stdout] at src/libcore/option.rs:1269 [INFO] [stdout] 14: 0x5588d792d38c - core::result::Result::unwrap::h9c1ab9c4878b9559 [INFO] [stdout] 15: 0x5588d7932d1e - rust_out::save_player::h04c828d1646f29f0 [INFO] [stdout] 16: 0x5588d7932f19 - rust_out::main::h405f65324f7b53be [INFO] [stdout] 17: 0x5588d792b2e3 - std::rt::lang_start::{{closure}}::ha8395b9615e12984 [INFO] [stdout] 18: 0x5588d79722b3 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70 [INFO] [stdout] at src/libstd/rt.rs:52 [INFO] [stdout] 19: 0x5588d79722b3 - std::panicking::try::do_call::he8e1d689a3e26def [INFO] [stdout] at src/libstd/panicking.rs:348 [INFO] [stdout] 20: 0x5588d79722b3 - std::panicking::try::h264b6eebc2fa7bbf [INFO] [stdout] at src/libstd/panicking.rs:325 [INFO] [stdout] 21: 0x5588d79722b3 - std::panic::catch_unwind::hbf28fafa723b2128 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 22: 0x5588d79722b3 - std::rt::lang_start_internal::he959aa59bc3ec202 [INFO] [stdout] at src/libstd/rt.rs:51 [INFO] [stdout] 23: 0x5588d792b2c8 - std::rt::lang_start::hf91fc87199e1c84e [INFO] [stdout] 24: 0x5588d7933e0b - main [INFO] [stdout] 25: 0x7fc83607c0b3 - __libc_start_main [INFO] [stdout] 26: 0x5588d792818e - _start [INFO] [stdout] 27: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 29) [INFO] [stdout] src/lib.rs - (line 437) [INFO] [stdout] src/lib.rs - (line 77) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 13 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "866fa310be8792f7dc0a1bbf58e9cd026921b63cee3f748a559cdb91ad929a88", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "866fa310be8792f7dc0a1bbf58e9cd026921b63cee3f748a559cdb91ad929a88", kill_on_drop: false }` [INFO] [stdout] 866fa310be8792f7dc0a1bbf58e9cd026921b63cee3f748a559cdb91ad929a88