[INFO] fetching crate parse_result 0.1.0... [INFO] testing parse_result-0.1.0 against 1.60.0 for beta-1.61-1 [INFO] extracting crate parse_result 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate parse_result 0.1.0 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate parse_result 0.1.0 [INFO] finished tweaking crates.io crate parse_result 0.1.0 [INFO] tweaked toml for crates.io crate parse_result 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 52618734ecd48746fc22c95971c861fa90b3870d1b42fbd15b89a52de1343666 [INFO] running `Command { std: "docker" "start" "-a" "52618734ecd48746fc22c95971c861fa90b3870d1b42fbd15b89a52de1343666", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52618734ecd48746fc22c95971c861fa90b3870d1b42fbd15b89a52de1343666", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52618734ecd48746fc22c95971c861fa90b3870d1b42fbd15b89a52de1343666", kill_on_drop: false }` [INFO] [stdout] 52618734ecd48746fc22c95971c861fa90b3870d1b42fbd15b89a52de1343666 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc0ec151e7c418f8a87d576b3e8a984c685e6b8c08e38e27e99b0ee058e13924 [INFO] running `Command { std: "docker" "start" "-a" "cc0ec151e7c418f8a87d576b3e8a984c685e6b8c08e38e27e99b0ee058e13924", kill_on_drop: false }` [INFO] [stderr] Compiling parse_result v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: this attribute can only be applied to a `use` item [INFO] [stdout] --> src/lib.rs:35:7 [INFO] [stdout] | [INFO] [stdout] 35 | #[doc(inline)] [INFO] [stdout] | ^^^^^^ only applicable on `use` items [INFO] [stdout] 36 | /// Extension trait to add `parse` to `Result`. [INFO] [stdout] 37 | / pub trait ParseResult { [INFO] [stdout] 38 | | /// Parses the `Result` into another type if it's not already an `Err` value. [INFO] [stdout] 39 | | /// [INFO] [stdout] 40 | | /// See [`str::parse`](http://doc.rust-lang.org/std/primitive.str.html#method.parse) for [INFO] [stdout] ... | [INFO] [stdout] 43 | | where F: FromStr; [INFO] [stdout] 44 | | } [INFO] [stdout] | |_- not a `use` item [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_doc_attributes)]` 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 #82730 [INFO] [stdout] = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#inline-and-no_inline for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:74:32 [INFO] [stdout] | [INFO] [stdout] 74 | fn cause(&self) -> Option<&StdError> { [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 74 - fn cause(&self) -> Option<&StdError> { [INFO] [stdout] 74 + fn cause(&self) -> Option<&dyn StdError> { [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/lib.rs:69:37 [INFO] [stdout] | [INFO] [stdout] 69 | OriginalErr(ref e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [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/lib.rs:70:38 [INFO] [stdout] | [INFO] [stdout] 70 | ParseFailure(ref e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.95s [INFO] running `Command { std: "docker" "inspect" "cc0ec151e7c418f8a87d576b3e8a984c685e6b8c08e38e27e99b0ee058e13924", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc0ec151e7c418f8a87d576b3e8a984c685e6b8c08e38e27e99b0ee058e13924", kill_on_drop: false }` [INFO] [stdout] cc0ec151e7c418f8a87d576b3e8a984c685e6b8c08e38e27e99b0ee058e13924 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc9cd84b756f999a747b8e408d79d6a4866c22bfe55b42d58997a6a8d26d3bf7 [INFO] running `Command { std: "docker" "start" "-a" "dc9cd84b756f999a747b8e408d79d6a4866c22bfe55b42d58997a6a8d26d3bf7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: this attribute can only be applied to a `use` item [INFO] [stdout] --> src/lib.rs:35:7 [INFO] [stdout] | [INFO] [stdout] 35 | #[doc(inline)] [INFO] [stdout] | ^^^^^^ only applicable on `use` items [INFO] [stdout] 36 | /// Extension trait to add `parse` to `Result`. [INFO] [stdout] 37 | / pub trait ParseResult { [INFO] [stdout] 38 | | /// Parses the `Result` into another type if it's not already an `Err` value. [INFO] [stdout] 39 | | /// [INFO] [stdout] 40 | | /// See [`str::parse`](http://doc.rust-lang.org/std/primitive.str.html#method.parse) for [INFO] [stdout] ... | [INFO] [stdout] 43 | | where F: FromStr; [INFO] [stdout] 44 | | } [INFO] [stdout] | |_- not a `use` item [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_doc_attributes)]` 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 #82730 [INFO] [stdout] = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#inline-and-no_inline for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling parse_result v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:74:32 [INFO] [stdout] | [INFO] [stdout] 74 | fn cause(&self) -> Option<&StdError> { [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 74 - fn cause(&self) -> Option<&StdError> { [INFO] [stdout] 74 + fn cause(&self) -> Option<&dyn StdError> { [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/lib.rs:69:37 [INFO] [stdout] | [INFO] [stdout] 69 | OriginalErr(ref e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [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/lib.rs:70:38 [INFO] [stdout] | [INFO] [stdout] 70 | ParseFailure(ref e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/lib.rs:143:12 [INFO] [stdout] | [INFO] [stdout] 143 | Ok(try!(env::var("PORT").parse())) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this attribute can only be applied to a `use` item [INFO] [stdout] --> src/lib.rs:35:7 [INFO] [stdout] | [INFO] [stdout] 35 | #[doc(inline)] [INFO] [stdout] | ^^^^^^ only applicable on `use` items [INFO] [stdout] 36 | /// Extension trait to add `parse` to `Result`. [INFO] [stdout] 37 | / pub trait ParseResult { [INFO] [stdout] 38 | | /// Parses the `Result` into another type if it's not already an `Err` value. [INFO] [stdout] 39 | | /// [INFO] [stdout] 40 | | /// See [`str::parse`](http://doc.rust-lang.org/std/primitive.str.html#method.parse) for [INFO] [stdout] ... | [INFO] [stdout] 43 | | where F: FromStr; [INFO] [stdout] 44 | | } [INFO] [stdout] | |_- not a `use` item [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_doc_attributes)]` 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 #82730 [INFO] [stdout] = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#inline-and-no_inline for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:142:38 [INFO] [stdout] | [INFO] [stdout] 142 | fn get_port() -> Result> { [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 142 - fn get_port() -> Result> { [INFO] [stdout] 142 + fn get_port() -> Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:74:32 [INFO] [stdout] | [INFO] [stdout] 74 | fn cause(&self) -> Option<&StdError> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 74 - fn cause(&self) -> Option<&StdError> { [INFO] [stdout] 74 + fn cause(&self) -> Option<&dyn StdError> { [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/lib.rs:69:37 [INFO] [stdout] | [INFO] [stdout] 69 | OriginalErr(ref e) => e.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/lib.rs:70:38 [INFO] [stdout] | [INFO] [stdout] 70 | ParseFailure(ref e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | assert!(Any::is::(&err)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 107 | assert!(::is::(&err)); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | assert!(Any::is::(&err)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [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 [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 131 | assert!(::is::(&err)); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.81s [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "dc9cd84b756f999a747b8e408d79d6a4866c22bfe55b42d58997a6a8d26d3bf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc9cd84b756f999a747b8e408d79d6a4866c22bfe55b42d58997a6a8d26d3bf7", kill_on_drop: false }` [INFO] [stdout] dc9cd84b756f999a747b8e408d79d6a4866c22bfe55b42d58997a6a8d26d3bf7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] cd8ce9fa8032672b8865cd9dde2dd1bea88df7a2c7f13ecbfca1c4e4d0807dbe [INFO] running `Command { std: "docker" "start" "-a" "cd8ce9fa8032672b8865cd9dde2dd1bea88df7a2c7f13ecbfca1c4e4d0807dbe", kill_on_drop: false }` [INFO] [stderr] warning: this attribute can only be applied to a `use` item [INFO] [stderr] --> src/lib.rs:35:7 [INFO] [stderr] | [INFO] [stderr] 35 | #[doc(inline)] [INFO] [stderr] | ^^^^^^ only applicable on `use` items [INFO] [stderr] 36 | /// Extension trait to add `parse` to `Result`. [INFO] [stderr] 37 | / pub trait ParseResult { [INFO] [stderr] 38 | | /// Parses the `Result` into another type if it's not already an `Err` value. [INFO] [stderr] 39 | | /// [INFO] [stderr] 40 | | /// See [`str::parse`](http://doc.rust-lang.org/std/primitive.str.html#method.parse) for [INFO] [stderr] ... | [INFO] [stderr] 43 | | where F: FromStr; [INFO] [stderr] 44 | | } [INFO] [stderr] | |_- not a `use` item [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(invalid_doc_attributes)]` 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 #82730 [INFO] [stderr] = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#inline-and-no_inline for more information [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:74:32 [INFO] [stderr] | [INFO] [stderr] 74 | fn cause(&self) -> Option<&StdError> { [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 [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 74 - fn cause(&self) -> Option<&StdError> { [INFO] [stderr] 74 + fn cause(&self) -> Option<&dyn StdError> { [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/lib.rs:69:37 [INFO] [stderr] | [INFO] [stderr] 69 | OriginalErr(ref e) => e.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/lib.rs:70:38 [INFO] [stderr] | [INFO] [stderr] 70 | ParseFailure(ref e) => e.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `parse_result` (lib) generated 4 warnings [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/lib.rs:143:12 [INFO] [stderr] | [INFO] [stderr] 143 | Ok(try!(env::var("PORT").parse())) [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/lib.rs:142:38 [INFO] [stderr] | [INFO] [stderr] 142 | fn get_port() -> Result> { [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 [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 142 - fn get_port() -> Result> { [INFO] [stderr] 142 + fn get_port() -> Result> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:74:32 [INFO] [stderr] | [INFO] [stderr] 74 | fn cause(&self) -> Option<&StdError> { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [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 [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 74 - fn cause(&self) -> Option<&StdError> { [INFO] [stderr] 74 + fn cause(&self) -> Option<&dyn StdError> { [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/lib.rs:69:37 [INFO] [stderr] | [INFO] [stderr] 69 | OriginalErr(ref e) => e.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | assert!(Any::is::(&err)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [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 [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 107 | assert!(::is::(&err)); [INFO] [stderr] | ++++ + [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | assert!(Any::is::(&err)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [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 [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 131 | assert!(::is::(&err)); [INFO] [stderr] | ++++ + [INFO] [stderr] [INFO] [stderr] warning: `parse_result` (lib test) generated 8 warnings (2 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/parse_result-7553efbfe0de8fa9) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test allows_turbofish_usage ... ok [INFO] [stdout] test boxed_error_works ... ok [INFO] [stdout] test fails_to_parse_an_original_err ... ok [INFO] [stdout] test parses_ok_with_type_inference ... ok [INFO] [stdout] test returns_parse_error_on_parse_failure ... 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 parse_result [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 8) - compile ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "cd8ce9fa8032672b8865cd9dde2dd1bea88df7a2c7f13ecbfca1c4e4d0807dbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd8ce9fa8032672b8865cd9dde2dd1bea88df7a2c7f13ecbfca1c4e4d0807dbe", kill_on_drop: false }` [INFO] [stdout] cd8ce9fa8032672b8865cd9dde2dd1bea88df7a2c7f13ecbfca1c4e4d0807dbe