[INFO] fetching crate my-pretty-failure 0.1.2... [INFO] testing my-pretty-failure-0.1.2 against 1.59.0 for beta-1.60-1 [INFO] extracting crate my-pretty-failure 0.1.2 into /workspace/builds/worker-45/source [INFO] validating manifest of crates.io crate my-pretty-failure 0.1.2 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 my-pretty-failure 0.1.2 [INFO] finished tweaking crates.io crate my-pretty-failure 0.1.2 [INFO] tweaked toml for crates.io crate my-pretty-failure 0.1.2 written to /workspace/builds/worker-45/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 396383399cce83df0fb4de9e537462f2f07f64a2713b8017305bd6af2faec705 [INFO] running `Command { std: "docker" "start" "-a" "396383399cce83df0fb4de9e537462f2f07f64a2713b8017305bd6af2faec705", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "396383399cce83df0fb4de9e537462f2f07f64a2713b8017305bd6af2faec705", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "396383399cce83df0fb4de9e537462f2f07f64a2713b8017305bd6af2faec705", kill_on_drop: false }` [INFO] [stdout] 396383399cce83df0fb4de9e537462f2f07f64a2713b8017305bd6af2faec705 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] a523668ac0de8cdb487bbe1e4ca4b5e02efa8e0648688b605ffaeada1edd1ec3 [INFO] running `Command { std: "docker" "start" "-a" "a523668ac0de8cdb487bbe1e4ca4b5e02efa8e0648688b605ffaeada1edd1ec3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling backtrace v0.3.64 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling my-pretty-failure v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:86:68 [INFO] [stdout] | [INFO] [stdout] 86 | pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [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] 86 - pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [INFO] [stdout] 86 + pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &dyn Fail) -> String { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:121:31 [INFO] [stdout] | [INFO] [stdout] 121 | pub fn myprettyfailure(fail: &Fail) -> String { [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] 121 - pub fn myprettyfailure(fail: &Fail) -> String { [INFO] [stdout] 121 + pub fn myprettyfailure(fail: &dyn Fail) -> String { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.41s [INFO] running `Command { std: "docker" "inspect" "a523668ac0de8cdb487bbe1e4ca4b5e02efa8e0648688b605ffaeada1edd1ec3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a523668ac0de8cdb487bbe1e4ca4b5e02efa8e0648688b605ffaeada1edd1ec3", kill_on_drop: false }` [INFO] [stdout] a523668ac0de8cdb487bbe1e4ca4b5e02efa8e0648688b605ffaeada1edd1ec3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] a6222c167404d4a360320bef92242ddaf681fa088e89e1fdc7976e2b54d4d0a6 [INFO] running `Command { std: "docker" "start" "-a" "a6222c167404d4a360320bef92242ddaf681fa088e89e1fdc7976e2b54d4d0a6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling my-pretty-failure v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:86:68 [INFO] [stdout] | [INFO] [stdout] 86 | pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [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] 86 - pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [INFO] [stdout] 86 + pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &dyn Fail) -> String { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:121:31 [INFO] [stdout] | [INFO] [stdout] 121 | pub fn myprettyfailure(fail: &Fail) -> String { [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] 121 - pub fn myprettyfailure(fail: &Fail) -> String { [INFO] [stdout] 121 + pub fn myprettyfailure(fail: &dyn Fail) -> String { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:86:68 [INFO] [stdout] | [INFO] [stdout] 86 | pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [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] 86 - pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [INFO] [stdout] 86 + pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &dyn Fail) -> String { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/0001_myprettyfailure.rs:13:52 [INFO] [stdout] | [INFO] [stdout] 13 | impl Fail for MyError { fn cause(&self) -> Option<&Fail> { self.inner.cause()} fn backtrace(&self) -> Option<&Backtrace> {self.inner.back... [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] 13 - impl Fail for MyError { fn cause(&self) -> Option<&Fail> { self.inner.cause()} fn backtrace(&self) -> Option<&Backtrace> {self.inner.backtrace()}} [INFO] [stdout] 13 + impl Fail for MyError { fn cause(&self) -> Option<&dyn Fail> { self.inner.cause()} fn backtrace(&self) -> Option<&Backtrace> {self.inner.backtrace()}} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:121:31 [INFO] [stdout] | [INFO] [stdout] 121 | pub fn myprettyfailure(fail: &Fail) -> String { [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] 121 - pub fn myprettyfailure(fail: &Fail) -> String { [INFO] [stdout] 121 + pub fn myprettyfailure(fail: &dyn Fail) -> String { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/helpme.rs:41:32 [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&Fail> { [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] 41 - fn cause(&self) -> Option<&Fail> { [INFO] [stdout] 41 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/helpme.rs:89:32 [INFO] [stdout] | [INFO] [stdout] 89 | fn cause(&self) -> Option<&Fail> { [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] 89 - fn cause(&self) -> Option<&Fail> { [INFO] [stdout] 89 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/helpme.rs:137:32 [INFO] [stdout] | [INFO] [stdout] 137 | fn cause(&self) -> Option<&Fail> { [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] 137 - fn cause(&self) -> Option<&Fail> { [INFO] [stdout] 137 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.08s [INFO] running `Command { std: "docker" "inspect" "a6222c167404d4a360320bef92242ddaf681fa088e89e1fdc7976e2b54d4d0a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6222c167404d4a360320bef92242ddaf681fa088e89e1fdc7976e2b54d4d0a6", kill_on_drop: false }` [INFO] [stdout] a6222c167404d4a360320bef92242ddaf681fa088e89e1fdc7976e2b54d4d0a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] c44253fa457c87ff85db50ce157bf69d7ac4a5676d05af87ebc9edc77b5f7fef [INFO] running `Command { std: "docker" "start" "-a" "c44253fa457c87ff85db50ce157bf69d7ac4a5676d05af87ebc9edc77b5f7fef", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:86:68 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [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] 86 - pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &Fail) -> String { [INFO] [stderr] 86 + pub fn myprettyfailure_option(option: MyPrettyFailurePrint, fail: &dyn Fail) -> String { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:121:31 [INFO] [stderr] | [INFO] [stderr] 121 | pub fn myprettyfailure(fail: &Fail) -> String { [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] 121 - pub fn myprettyfailure(fail: &Fail) -> String { [INFO] [stderr] 121 + pub fn myprettyfailure(fail: &dyn Fail) -> String { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `my-pretty-failure` (lib) generated 2 warnings [INFO] [stderr] warning: `my-pretty-failure` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> tests/0001_myprettyfailure.rs:13:52 [INFO] [stderr] | [INFO] [stderr] 13 | impl Fail for MyError { fn cause(&self) -> Option<&Fail> { self.inner.cause()} fn backtrace(&self) -> Option<&Backtrace> {self.inner.back... [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] 13 - impl Fail for MyError { fn cause(&self) -> Option<&Fail> { self.inner.cause()} fn backtrace(&self) -> Option<&Backtrace> {self.inner.backtrace()}} [INFO] [stderr] 13 + impl Fail for MyError { fn cause(&self) -> Option<&dyn Fail> { self.inner.cause()} fn backtrace(&self) -> Option<&Backtrace> {self.inner.backtrace()}} [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> examples/helpme.rs:41:32 [INFO] [stderr] | [INFO] [stderr] 41 | fn cause(&self) -> Option<&Fail> { [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] 41 - fn cause(&self) -> Option<&Fail> { [INFO] [stderr] 41 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> examples/helpme.rs:89:32 [INFO] [stderr] | [INFO] [stderr] 89 | fn cause(&self) -> Option<&Fail> { [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] 89 - fn cause(&self) -> Option<&Fail> { [INFO] [stderr] 89 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> examples/helpme.rs:137:32 [INFO] [stderr] | [INFO] [stderr] 137 | fn cause(&self) -> Option<&Fail> { [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] 137 - fn cause(&self) -> Option<&Fail> { [INFO] [stderr] 137 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `my-pretty-failure` (test "0001_myprettyfailure") generated 1 warning [INFO] [stderr] warning: `my-pretty-failure` (example "helpme") generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.07s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/my_pretty_failure-bb5b80caee86261f) [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] [stderr] Running tests/0001_myprettyfailure.rs (/opt/rustwide/target/debug/deps/0001_myprettyfailure-3f1ee4950b30ac42) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test myprettyfailure_0001_equal ... ok [INFO] [stdout] test myprettyfailure_0002_option ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests my-pretty-failure [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 13) ... ignored [INFO] [stdout] test src/lib.rs - (line 35) ... ignored [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c44253fa457c87ff85db50ce157bf69d7ac4a5676d05af87ebc9edc77b5f7fef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c44253fa457c87ff85db50ce157bf69d7ac4a5676d05af87ebc9edc77b5f7fef", kill_on_drop: false }` [INFO] [stdout] c44253fa457c87ff85db50ce157bf69d7ac4a5676d05af87ebc9edc77b5f7fef