[INFO] fetching crate sfink_callgraph_traversal 0.1.0...
[INFO] testing sfink_callgraph_traversal-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate sfink_callgraph_traversal 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate sfink_callgraph_traversal 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sfink_callgraph_traversal 0.1.0
[INFO] finished tweaking crates.io crate sfink_callgraph_traversal 0.1.0
[INFO] tweaked toml for crates.io crate sfink_callgraph_traversal 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e068ef945b65ed567a32a29919ae660ece014222d8411a95638ecd99f058c914
[INFO] running `Command { std: "docker" "start" "-a" "e068ef945b65ed567a32a29919ae660ece014222d8411a95638ecd99f058c914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e068ef945b65ed567a32a29919ae660ece014222d8411a95638ecd99f058c914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e068ef945b65ed567a32a29919ae660ece014222d8411a95638ecd99f058c914", kill_on_drop: false }`
[INFO] [stdout] e068ef945b65ed567a32a29919ae660ece014222d8411a95638ecd99f058c914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef472cd2b609a7bc6f14daa8e8dcf12127c0b70e6b857947f9e1f987d049ee67
[INFO] running `Command { std: "docker" "start" "-a" "ef472cd2b609a7bc6f14daa8e8dcf12127c0b70e6b857947f9e1f987d049ee67", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling cpython v0.1.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling python27-sys v0.1.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling rustyline v4.1.0
[INFO] [stderr]    Compiling sfink_callgraph_traversal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/hazard.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `DescriptionBrevity`
[INFO] [stdout]   --> src/callgraph.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum DescriptionBrevity {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Matcher`
[INFO] [stdout]   --> src/callgraph.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Matcher<'a> {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/callgraph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(pattern : &str) -> Option<Matcher> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_match`
[INFO] [stdout]   --> src/callgraph.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn is_match(&self, cg : &Callgraph, idx : NodeIndex) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `name`
[INFO] [stdout]    --> src/callgraph.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn name(&self, idx : NodeIndex, brevity : DescriptionBrevity) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/hazard.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` 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 11.19s
[INFO] running `Command { std: "docker" "inspect" "ef472cd2b609a7bc6f14daa8e8dcf12127c0b70e6b857947f9e1f987d049ee67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef472cd2b609a7bc6f14daa8e8dcf12127c0b70e6b857947f9e1f987d049ee67", kill_on_drop: false }`
[INFO] [stdout] ef472cd2b609a7bc6f14daa8e8dcf12127c0b70e6b857947f9e1f987d049ee67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9777daa2e3db9089792333d3e1e11c39a1209e846095446ecc38d51dc6d55662
[INFO] running `Command { std: "docker" "start" "-a" "9777daa2e3db9089792333d3e1e11c39a1209e846095446ecc38d51dc6d55662", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/hazard.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sfink_callgraph_traversal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `DescriptionBrevity`
[INFO] [stdout]   --> src/callgraph.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum DescriptionBrevity {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Matcher`
[INFO] [stdout]   --> src/callgraph.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Matcher<'a> {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/callgraph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(pattern : &str) -> Option<Matcher> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_match`
[INFO] [stdout]   --> src/callgraph.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn is_match(&self, cg : &Callgraph, idx : NodeIndex) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `name`
[INFO] [stdout]    --> src/callgraph.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn name(&self, idx : NodeIndex, brevity : DescriptionBrevity) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/hazard.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/hazard.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / py_class!(class HazGraph |py| {
[INFO] [stdout] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stdout] ...  |
[INFO] [stdout] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stdout] 87 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `DescriptionBrevity`
[INFO] [stdout]   --> src/callgraph.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum DescriptionBrevity {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Matcher`
[INFO] [stdout]   --> src/callgraph.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Matcher<'a> {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/callgraph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(pattern : &str) -> Option<Matcher> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_match`
[INFO] [stdout]   --> src/callgraph.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn is_match(&self, cg : &Callgraph, idx : NodeIndex) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `name`
[INFO] [stdout]    --> src/callgraph.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn name(&self, idx : NodeIndex, brevity : DescriptionBrevity) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.98s
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9777daa2e3db9089792333d3e1e11c39a1209e846095446ecc38d51dc6d55662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9777daa2e3db9089792333d3e1e11c39a1209e846095446ecc38d51dc6d55662", kill_on_drop: false }`
[INFO] [stdout] 9777daa2e3db9089792333d3e1e11c39a1209e846095446ecc38d51dc6d55662
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7a552cf7e32b2ed8a51c004b090a6acaa11ddb3a134d57ddd66df2d96facbbe
[INFO] running `Command { std: "docker" "start" "-a" "d7a552cf7e32b2ed8a51c004b090a6acaa11ddb3a134d57ddd66df2d96facbbe", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/hazard.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | / py_class!(class HazGraph |py| {
[INFO] [stderr] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stderr] 29 | |
[INFO] [stderr] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stderr] 87 | | });
[INFO] [stderr]    | |___^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | / py_class!(class HazGraph |py| {
[INFO] [stderr] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stderr] 29 | |
[INFO] [stderr] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stderr] 87 | | });
[INFO] [stderr]    | |___^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `py_impl_from_py_object_for_python_object` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | / py_class!(class HazGraph |py| {
[INFO] [stderr] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stderr] 29 | |
[INFO] [stderr] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stderr] 87 | | });
[INFO] [stderr]    | |___^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `py_class_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | / py_class!(class HazGraph |py| {
[INFO] [stderr] 28 | |     data callgraph: cell::RefCell<Callgraph>;
[INFO] [stderr] 29 | |
[INFO] [stderr] 30 | |     def __new__(_cls, filename: &str) -> PyResult<HazGraph> {
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |     // Err(PyErr::new::<exc::TypeError, _>(py, "unimplemented"))
[INFO] [stderr] 87 | | });
[INFO] [stderr]    | |___^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `py_class_init_members` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `DescriptionBrevity`
[INFO] [stderr]   --> src/callgraph.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub enum DescriptionBrevity {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Matcher`
[INFO] [stderr]   --> src/callgraph.rs:45:10
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub enum Matcher<'a> {
[INFO] [stderr]    |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/callgraph.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn new(pattern : &str) -> Option<Matcher> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_match`
[INFO] [stderr]   --> src/callgraph.rs:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn is_match(&self, cg : &Callgraph, idx : NodeIndex) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `name`
[INFO] [stderr]    --> src/callgraph.rs:124:12
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn name(&self, idx : NodeIndex, brevity : DescriptionBrevity) -> String {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sfink_callgraph_traversal` (lib) generated 12 warnings (2 duplicates)
[INFO] [stderr] warning: `sfink_callgraph_traversal` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stdout] 
[INFO] [stderr] warning: `sfink_callgraph_traversal` (bin "cgtraverse" test) generated 1 warning (1 duplicate)
[INFO] [stdout] running 0 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hazgraph-fd8622f3213b2cf0)
[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 (/opt/rustwide/target/debug/deps/cgtraverse-6c05a7332598f0af)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hazgraph
[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] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> /opt/rustwide/workdir/src/hazard.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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] running `Command { std: "docker" "inspect" "d7a552cf7e32b2ed8a51c004b090a6acaa11ddb3a134d57ddd66df2d96facbbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a552cf7e32b2ed8a51c004b090a6acaa11ddb3a134d57ddd66df2d96facbbe", kill_on_drop: false }`
[INFO] [stdout] d7a552cf7e32b2ed8a51c004b090a6acaa11ddb3a134d57ddd66df2d96facbbe