[INFO] fetching crate libstat 0.1.1...
[INFO] testing libstat-0.1.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate libstat 0.1.1 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate libstat 0.1.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libstat 0.1.1
[INFO] finished tweaking crates.io crate libstat 0.1.1
[INFO] tweaked toml for crates.io crate libstat 0.1.1 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cb7167570249141b82558496061cb02b70bcdd6e3953514f9560c7d18d4788b
[INFO] running `Command { std: "docker" "start" "-a" "9cb7167570249141b82558496061cb02b70bcdd6e3953514f9560c7d18d4788b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cb7167570249141b82558496061cb02b70bcdd6e3953514f9560c7d18d4788b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cb7167570249141b82558496061cb02b70bcdd6e3953514f9560c7d18d4788b", kill_on_drop: false }`
[INFO] [stdout] 9cb7167570249141b82558496061cb02b70bcdd6e3953514f9560c7d18d4788b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d290206fb0b4c0b26142c215c371d12b4a3e41faccd98a9f641b45c29bff79cc
[INFO] running `Command { std: "docker" "start" "-a" "d290206fb0b4c0b26142c215c371d12b4a3e41faccd98a9f641b45c29bff79cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling libmath v0.1.4
[INFO] [stderr]    Compiling libstat v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/analysis/trend.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |         None => try!(simple_moving_average(slice)),
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/analysis/mod.rs:51:29
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 51 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/analysis/mod.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |         write!(f, "error: {}", self.description())
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/analysis/momentum.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 |         0. => 100.,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "d290206fb0b4c0b26142c215c371d12b4a3e41faccd98a9f641b45c29bff79cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d290206fb0b4c0b26142c215c371d12b4a3e41faccd98a9f641b45c29bff79cc", kill_on_drop: false }`
[INFO] [stdout] d290206fb0b4c0b26142c215c371d12b4a3e41faccd98a9f641b45c29bff79cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8489c5c4a26774e517c39248040a78f9b8fbeeb3aedd3673a6ee96d9855ca9b6
[INFO] running `Command { std: "docker" "start" "-a" "8489c5c4a26774e517c39248040a78f9b8fbeeb3aedd3673a6ee96d9855ca9b6", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/analysis/trend.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |         None => try!(simple_moving_average(slice)),
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/analysis/mod.rs:51:29
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 51 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/analysis/mod.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |         write!(f, "error: {}", self.description())
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/analysis/momentum.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 |         0. => 100.,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libstat v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/analysis/trend.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |         None => try!(simple_moving_average(slice)),
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/analysis/mod.rs:51:29
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 51 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/analysis/mod.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |         write!(f, "error: {}", self.description())
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/momentum.rs:173:24
[INFO] [stdout]     |
[INFO] [stdout] 173 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/momentum.rs:173:43
[INFO] [stdout]     |
[INFO] [stdout] 173 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/momentum.rs:214:24
[INFO] [stdout]     |
[INFO] [stdout] 214 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/momentum.rs:214:43
[INFO] [stdout]     |
[INFO] [stdout] 214 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/momentum.rs:255:24
[INFO] [stdout]     |
[INFO] [stdout] 255 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/momentum.rs:255:43
[INFO] [stdout]     |
[INFO] [stdout] 255 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/trend.rs:122:24
[INFO] [stdout]     |
[INFO] [stdout] 122 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/trend.rs:122:43
[INFO] [stdout]     |
[INFO] [stdout] 122 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/trend.rs:172:24
[INFO] [stdout]     |
[INFO] [stdout] 172 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/analysis/trend.rs:172:43
[INFO] [stdout]     |
[INFO] [stdout] 172 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stdout]     |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/analysis/momentum.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 |         0. => 100.,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "8489c5c4a26774e517c39248040a78f9b8fbeeb3aedd3673a6ee96d9855ca9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8489c5c4a26774e517c39248040a78f9b8fbeeb3aedd3673a6ee96d9855ca9b6", kill_on_drop: false }`
[INFO] [stdout] 8489c5c4a26774e517c39248040a78f9b8fbeeb3aedd3673a6ee96d9855ca9b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d459f6c5b1b3d5ec5f5f88ad978dcc73a9297bbb64430c3936fbb93d13e1e50a
[INFO] running `Command { std: "docker" "start" "-a" "d459f6c5b1b3d5ec5f5f88ad978dcc73a9297bbb64430c3936fbb93d13e1e50a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/analysis/trend.rs:39:11
[INFO] [stderr]    |
[INFO] [stderr] 39 |         None => try!(simple_moving_average(slice)),
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/analysis/mod.rs:51:29
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 51 -     fn cause(&self) -> Option<&Error> {
[INFO] [stderr] 51 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/analysis/mod.rs:35:31
[INFO] [stderr]    |
[INFO] [stderr] 35 |         write!(f, "error: {}", self.description())
[INFO] [stderr]    |                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/analysis/momentum.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |         0. => 100.,
[INFO] [stderr]    |         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: `libstat` (lib) generated 4 warnings
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/momentum.rs:173:24
[INFO] [stderr]     |
[INFO] [stderr] 173 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/momentum.rs:173:43
[INFO] [stderr]     |
[INFO] [stderr] 173 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/momentum.rs:214:24
[INFO] [stderr]     |
[INFO] [stderr] 214 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/momentum.rs:214:43
[INFO] [stderr]     |
[INFO] [stderr] 214 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/momentum.rs:255:24
[INFO] [stderr]     |
[INFO] [stderr] 255 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/momentum.rs:255:43
[INFO] [stderr]     |
[INFO] [stderr] 255 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/trend.rs:122:24
[INFO] [stderr]     |
[INFO] [stderr] 122 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/trend.rs:122:43
[INFO] [stderr]     |
[INFO] [stderr] 122 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/trend.rs:172:24
[INFO] [stderr]     |
[INFO] [stderr] 172 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/analysis/trend.rs:172:43
[INFO] [stderr]     |
[INFO] [stderr] 172 |                     => assert_eq!(err.description(), exp.description()),
[INFO] [stderr]     |                                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `libstat` (lib test) generated 14 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stat-9c5859f7970be5d3)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test analysis::momentum::tests::relative_strength_index ... ok
[INFO] [stdout] test analysis::momentum::tests::stochastic_oscillator ... ok
[INFO] [stdout] test analysis::momentum::tests::williams_percent_r ... ok
[INFO] [stdout] test analysis::trend::tests::exponential_moving_average ... ok
[INFO] [stdout] test analysis::trend::tests::simple_moving_average ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stat
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/analysis/trend.rs - analysis::trend::simple_moving_average (line 55) ... ok
[INFO] [stdout] test src/analysis/momentum.rs - analysis::momentum::williams_percent_r (line 108) ... ok
[INFO] [stdout] test src/analysis/trend.rs - analysis::trend::exponential_moving_average (line 25) ... ok
[INFO] [stdout] test src/analysis/momentum.rs - analysis::momentum::relative_strength_index (line 20) ... ok
[INFO] [stdout] test src/analysis/momentum.rs - analysis::momentum::stochastic_oscillator (line 64) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d459f6c5b1b3d5ec5f5f88ad978dcc73a9297bbb64430c3936fbb93d13e1e50a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d459f6c5b1b3d5ec5f5f88ad978dcc73a9297bbb64430c3936fbb93d13e1e50a", kill_on_drop: false }`
[INFO] [stdout] d459f6c5b1b3d5ec5f5f88ad978dcc73a9297bbb64430c3936fbb93d13e1e50a