[INFO] fetching crate vignette 0.1.0...
[INFO] testing vignette-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate vignette 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate vignette 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vignette 0.1.0
[INFO] finished tweaking crates.io crate vignette 0.1.0
[INFO] tweaked toml for crates.io crate vignette 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate vignette 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.115
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded clang-sys v0.26.4
[INFO] [stderr]   Downloaded addr2line v0.13.0
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] [stderr]   Downloaded flate2 v1.0.17
[INFO] [stderr]   Downloaded bindgen v0.42.3
[INFO] [stderr]   Downloaded fallible-iterator v0.1.6
[INFO] [stderr]   Downloaded if_chain v0.1.3
[INFO] [stderr]   Downloaded msvc-demangler v0.7.0
[INFO] [stderr]   Downloaded miniz_oxide v0.4.1
[INFO] [stderr]   Downloaded scroll v0.9.2
[INFO] [stderr]   Downloaded goblin v0.0.17
[INFO] [stderr]   Downloaded cpp_demangle v0.2.16
[INFO] [stderr]   Downloaded gimli v0.16.1
[INFO] [stderr]   Downloaded dmsort v1.0.0
[INFO] [stderr]   Downloaded symbolic-debuginfo v5.7.8
[INFO] [stderr]   Downloaded symbolic-common v5.7.8
[INFO] [stderr]   Downloaded threadinfo v0.1.0
[INFO] [stderr]   Downloaded gimli v0.22.0
[INFO] [stderr]   Downloaded object v0.20.0
[INFO] [stderr]   Downloaded debugid v0.3.1
[INFO] [stderr]   Downloaded syn v1.0.39
[INFO] [stderr]   Downloaded backtrace v0.3.50
[INFO] [stderr]   Downloaded symbolic-symcache v5.7.8
[INFO] [stderr]   Downloaded serde v1.0.115
[INFO] [stderr]   Downloaded unwind-sys v0.1.1
[INFO] [stderr]   Downloaded scroll_derive v0.9.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.20
[INFO] [stderr]   Downloaded cc v1.0.59
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded goblin v0.0.19
[INFO] [stderr]   Downloaded symbolic-demangle v5.7.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f232f19f1a56e26f6ca752353be85e17acbe1db8fb976c6c6efdff0fc054d79f
[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" "f232f19f1a56e26f6ca752353be85e17acbe1db8fb976c6c6efdff0fc054d79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f232f19f1a56e26f6ca752353be85e17acbe1db8fb976c6c6efdff0fc054d79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f232f19f1a56e26f6ca752353be85e17acbe1db8fb976c6c6efdff0fc054d79f", kill_on_drop: false }`
[INFO] [stdout] f232f19f1a56e26f6ca752353be85e17acbe1db8fb976c6c6efdff0fc054d79f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 619a1760c138d3ce6c00948a1695ed89647b4a3ea9e91deca95c4e9fc9f8bbf5
[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" "619a1760c138d3ce6c00948a1695ed89647b4a3ea9e91deca95c4e9fc9f8bbf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]    Compiling vignette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling dmsort v1.0.0
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling symbolic-demangle v5.7.8
[INFO] [stderr]    Compiling unwind-sys v0.1.1
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling gimli v0.16.1
[INFO] [stderr]    Compiling msvc-demangler v0.7.0
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling debugid v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling flate2 v1.0.17
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling goblin v0.0.19
[INFO] [stderr]    Compiling goblin v0.0.17
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling symbolic-common v5.7.8
[INFO] [stderr]    Compiling symbolic-debuginfo v5.7.8
[INFO] [stderr]    Compiling symbolic-symcache v5.7.8
[INFO] [stderr]    Compiling threadinfo v0.1.0
[INFO] [stdout] warning: unused imports: `fs`, `process`
[INFO] [stdout]   --> src/lib_linux.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{cell::UnsafeCell, fs, io, mem, process};
[INFO] [stdout]    |                             ^^           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/module_cache/linux.rs:68:52
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut mod_info: libc::Dl_info = unsafe { mem::uninitialized() };
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/generate_symbols.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     output_file.write(&output.stdout);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/speedscope.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     serde_json::to_writer_pretty(stdout.lock(), &speed);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/resolve.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     writeln!(std::io::stderr(), "{:?}", e);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "619a1760c138d3ce6c00948a1695ed89647b4a3ea9e91deca95c4e9fc9f8bbf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619a1760c138d3ce6c00948a1695ed89647b4a3ea9e91deca95c4e9fc9f8bbf5", kill_on_drop: false }`
[INFO] [stdout] 619a1760c138d3ce6c00948a1695ed89647b4a3ea9e91deca95c4e9fc9f8bbf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a8662cc9bcf10021e49e3f30b09cdfe96fc84d71a591adc5d196cdf37761c83
[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" "8a8662cc9bcf10021e49e3f30b09cdfe96fc84d71a591adc5d196cdf37761c83", kill_on_drop: false }`
[INFO] [stderr]    Compiling vignette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs`, `process`
[INFO] [stdout]   --> src/lib_linux.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{cell::UnsafeCell, fs, io, mem, process};
[INFO] [stdout]    |                             ^^           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/module_cache/linux.rs:68:52
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut mod_info: libc::Dl_info = unsafe { mem::uninitialized() };
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/generate_symbols.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     output_file.write(&output.stdout);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/speedscope.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     serde_json::to_writer_pretty(stdout.lock(), &speed);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/resolve.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     writeln!(std::io::stderr(), "{:?}", e);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs`, `process`
[INFO] [stdout]   --> src/lib_linux.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{cell::UnsafeCell, fs, io, mem, process};
[INFO] [stdout]    |                             ^^           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/module_cache/linux.rs:68:52
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut mod_info: libc::Dl_info = unsafe { mem::uninitialized() };
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.33s
[INFO] running `Command { std: "docker" "inspect" "8a8662cc9bcf10021e49e3f30b09cdfe96fc84d71a591adc5d196cdf37761c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8662cc9bcf10021e49e3f30b09cdfe96fc84d71a591adc5d196cdf37761c83", kill_on_drop: false }`
[INFO] [stdout] 8a8662cc9bcf10021e49e3f30b09cdfe96fc84d71a591adc5d196cdf37761c83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a5da6f6296d57affaae186c855a7764e5aba7577025b775544496367439a7732
[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" "a5da6f6296d57affaae186c855a7764e5aba7577025b775544496367439a7732", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `fs`, `process`
[INFO] [stderr]   --> src/lib_linux.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::{cell::UnsafeCell, fs, io, mem, process};
[INFO] [stderr]    |                             ^^           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/module_cache/linux.rs:68:52
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut mod_info: libc::Dl_info = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `fs`, `process`
[INFO] [stderr]   --> src/lib_linux.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::{cell::UnsafeCell, fs, io, mem, process};
[INFO] [stderr]    |                             ^^           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/module_cache/linux.rs:68:52
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut mod_info: libc::Dl_info = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/speedscope.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     serde_json::to_writer_pretty(stdout.lock(), &speed);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/resolve.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     writeln!(std::io::stderr(), "{:?}", e);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/generate_symbols.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     output_file.write(&output.stdout);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vignette-e574f153dcf41637
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test lib_linux::tests::test_suspend_resume_unwind ... ignored
[INFO] [stdout] test module_cache::linux::tests::test_rva ... ok
[INFO] [stdout] test lib_linux::tests::test_semaphore ... ok
[INFO] [stdout] test tests::test_suspend_resume ... ok
[INFO] [stdout] test lib_linux::tests::test_sigprof ... ok
[INFO] [stdout] test module_cache::linux::tests::test_cache ... ok
[INFO] [stdout] test module_cache::linux::tests::test_fail ... FAILED
[INFO] [stdout] test lib_linux::tests::test_suspend_resume_itself ... ok
[INFO] [stdout] test lib_linux::tests::test_suspend_resume ... test lib_linux::tests::test_suspend_resume has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "a5da6f6296d57affaae186c855a7764e5aba7577025b775544496367439a7732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5da6f6296d57affaae186c855a7764e5aba7577025b775544496367439a7732", kill_on_drop: false }`
[INFO] [stdout] a5da6f6296d57affaae186c855a7764e5aba7577025b775544496367439a7732