[INFO] fetching crate assert_cli 0.6.3...
[INFO] checking assert_cli-0.6.3 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate assert_cli 0.6.3 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate assert_cli 0.6.3 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert_cli 0.6.3
[INFO] finished tweaking crates.io crate assert_cli 0.6.3
[INFO] tweaked toml for crates.io crate assert_cli 0.6.3 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded docmatic v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7cef2070fbd63b24e96041d3fe5dd879d7d10704c46fc8e52a51cd8e305eb7e
[INFO] running `Command { std: "docker" "start" "-a" "a7cef2070fbd63b24e96041d3fe5dd879d7d10704c46fc8e52a51cd8e305eb7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7cef2070fbd63b24e96041d3fe5dd879d7d10704c46fc8e52a51cd8e305eb7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7cef2070fbd63b24e96041d3fe5dd879d7d10704c46fc8e52a51cd8e305eb7e", kill_on_drop: false }`
[INFO] [stdout] a7cef2070fbd63b24e96041d3fe5dd879d7d10704c46fc8e52a51cd8e305eb7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6488920735b7233947259dba8c05037a6a795a9f34dad452e26de230a37c8d0e
[INFO] running `Command { std: "docker" "start" "-a" "6488920735b7233947259dba8c05037a6a795a9f34dad452e26de230a37c8d0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.60
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]     Checking assert_cli v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/errors.rs:124:32
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/errors.rs:183:32
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/output.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub pred: rc::Rc<Fn(&str) -> bool>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/output.rs:538:32
[INFO] [stdout]     |
[INFO] [stdout] 538 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking docmatic v0.1.2
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]   --> src/errors.rs:80:49
[INFO] [stdout]    |
[INFO] [stdout] 80 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]    --> src/errors.rs:125:49
[INFO] [stdout]     |
[INFO] [stdout] 125 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]    --> src/errors.rs:184:49
[INFO] [stdout]     |
[INFO] [stdout] 184 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Fail::causes`: please use the 'iter_chain()' method instead
[INFO] [stdout]    --> src/assert.rs:441:44
[INFO] [stdout]     |
[INFO] [stdout] 441 |             panic!(Self::format_causes(err.causes()));
[INFO] [stdout]     |                                            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]    --> src/output.rs:539:49
[INFO] [stdout]     |
[INFO] [stdout] 539 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/assert.rs:441:20
[INFO] [stdout]     |
[INFO] [stdout] 441 |             panic!(Self::format_causes(err.causes()));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 441 |             panic!("{}", Self::format_causes(err.causes()));
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 441 |             std::panic::panic_any(Self::format_causes(err.causes()));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/errors.rs:124:32
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/errors.rs:183:32
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/output.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub pred: rc::Rc<Fn(&str) -> bool>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/output.rs:538:32
[INFO] [stdout]     |
[INFO] [stdout] 538 |     fn cause(&self) -> Option<&failure::Fail> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn failure::Fail`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]   --> src/errors.rs:80:49
[INFO] [stdout]    |
[INFO] [stdout] 80 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]    --> src/errors.rs:125:49
[INFO] [stdout]     |
[INFO] [stdout] 125 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]    --> src/errors.rs:184:49
[INFO] [stdout]     |
[INFO] [stdout] 184 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Fail::causes`: please use the 'iter_chain()' method instead
[INFO] [stdout]    --> src/assert.rs:441:44
[INFO] [stdout]     |
[INFO] [stdout] 441 |             panic!(Self::format_causes(err.causes()));
[INFO] [stdout]     |                                            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]    --> src/output.rs:539:49
[INFO] [stdout]     |
[INFO] [stdout] 539 |         self.cause.as_ref().map(failure::Error::cause)
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/assert.rs:441:20
[INFO] [stdout]     |
[INFO] [stdout] 441 |             panic!(Self::format_causes(err.causes()));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 441 |             panic!("{}", Self::format_causes(err.causes()));
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 441 |             std::panic::panic_any(Self::format_causes(err.causes()));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.44s
[INFO] running `Command { std: "docker" "inspect" "6488920735b7233947259dba8c05037a6a795a9f34dad452e26de230a37c8d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6488920735b7233947259dba8c05037a6a795a9f34dad452e26de230a37c8d0e", kill_on_drop: false }`
[INFO] [stdout] 6488920735b7233947259dba8c05037a6a795a9f34dad452e26de230a37c8d0e