[INFO] fetching crate shrust 0.0.7...
[INFO] checking shrust-0.0.7 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate shrust 0.0.7 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate shrust 0.0.7 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shrust 0.0.7
[INFO] finished tweaking crates.io crate shrust 0.0.7
[INFO] tweaked toml for crates.io crate shrust 0.0.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate shrust 0.0.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f79b9581e134c8f716540b7d879f4565d1f056bdb5133209838a2a93fcda30c
[INFO] running `Command { std: "docker" "start" "-a" "2f79b9581e134c8f716540b7d879f4565d1f056bdb5133209838a2a93fcda30c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f79b9581e134c8f716540b7d879f4565d1f056bdb5133209838a2a93fcda30c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f79b9581e134c8f716540b7d879f4565d1f056bdb5133209838a2a93fcda30c", kill_on_drop: false }`
[INFO] [stdout] 2f79b9581e134c8f716540b7d879f4565d1f056bdb5133209838a2a93fcda30c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3a85009d59c8fcdb1d6691902118fb7b2878c2499ab05c05d60c1d3b17fa31b
[INFO] running `Command { std: "docker" "start" "-a" "c3a85009d59c8fcdb1d6691902118fb7b2878c2499ab05c05d60c1d3b17fa31b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking encode_unicode v0.3.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking shrust v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Other(Box<Error>),
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Other(Box<dyn Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |     input: Arc<Mutex<io::Read + Send>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     input: Arc<Mutex<dyn io::Read + Send>>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |     output: Arc<Mutex<io::Write + Send>>
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     output: Arc<Mutex<dyn io::Write + Send>>
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:18
[INFO] [stdout]     |
[INFO] [stdout] 123 |     default: Arc<Fn(&mut ShellIO, &mut Shell<T>, &str) -> ExecResult + Send + Sync>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |     default: Arc<dyn Fn(&mut ShellIO, &mut Shell<T>, &str) -> ExecResult + Send + Sync>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:332:29
[INFO] [stdout]     |
[INFO] [stdout] 332 |     pub type CmdFn<T> = Box<Fn(&mut ShellIO, &mut Shell<T>, &[&str]) -> ExecResult + Send + Sync>;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 332 |     pub type CmdFn<T> = Box<dyn Fn(&mut ShellIO, &mut Shell<T>, &[&str]) -> ExecResult + Send + Sync>;
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Other(Box<Error>),
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Other(Box<dyn Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |     input: Arc<Mutex<io::Read + Send>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     input: Arc<Mutex<dyn io::Read + Send>>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |     output: Arc<Mutex<io::Write + Send>>
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 68 |     output: Arc<Mutex<dyn io::Write + Send>>
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:18
[INFO] [stdout]     |
[INFO] [stdout] 123 |     default: Arc<Fn(&mut ShellIO, &mut Shell<T>, &str) -> ExecResult + Send + Sync>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |     default: Arc<dyn Fn(&mut ShellIO, &mut Shell<T>, &str) -> ExecResult + Send + Sync>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:332:29
[INFO] [stdout]     |
[INFO] [stdout] 332 |     pub type CmdFn<T> = Box<Fn(&mut ShellIO, &mut Shell<T>, &[&str]) -> ExecResult + Send + Sync>;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 332 |     pub type CmdFn<T> = Box<dyn Fn(&mut ShellIO, &mut Shell<T>, &[&str]) -> ExecResult + Send + Sync>;
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:135:47
[INFO] [stdout]     |
[INFO] [stdout] 135 |             default: Arc::new(|_, _, cmd| Err(UnknownCommand(cmd.to_string()))),
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:368:95
[INFO] [stdout]     |
[INFO] [stdout] 368 |         return Command::new("quit".to_string(), "Quit".to_string(), 0, Box::new(|_, _, _| Err(ExecError::Quit)));
[INFO] [stdout]     |                                                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shrust` (lib test) due to 3 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:135:47
[INFO] [stdout]     |
[INFO] [stdout] 135 |             default: Arc::new(|_, _, cmd| Err(UnknownCommand(cmd.to_string()))),
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:368:95
[INFO] [stdout]     |
[INFO] [stdout] 368 |         return Command::new("quit".to_string(), "Quit".to_string(), 0, Box::new(|_, _, _| Err(ExecError::Quit)));
[INFO] [stdout]     |                                                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shrust` (lib) due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c3a85009d59c8fcdb1d6691902118fb7b2878c2499ab05c05d60c1d3b17fa31b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a85009d59c8fcdb1d6691902118fb7b2878c2499ab05c05d60c1d3b17fa31b", kill_on_drop: false }`
[INFO] [stdout] c3a85009d59c8fcdb1d6691902118fb7b2878c2499ab05c05d60c1d3b17fa31b