[INFO] fetching crate with_locals-proc_macros 0.3.0-rc1...
[INFO] checking with_locals-proc_macros-0.3.0-rc1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate with_locals-proc_macros 0.3.0-rc1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate with_locals-proc_macros 0.3.0-rc1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate with_locals-proc_macros 0.3.0-rc1
[INFO] finished tweaking crates.io crate with_locals-proc_macros 0.3.0-rc1
[INFO] tweaked toml for crates.io crate with_locals-proc_macros 0.3.0-rc1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e54d3c0e6ad28c69b5d88c1d2929c9d5f94ccf7afbb34df1199d1b5291e59f9f
[INFO] running `Command { std: "docker" "start" "-a" "e54d3c0e6ad28c69b5d88c1d2929c9d5f94ccf7afbb34df1199d1b5291e59f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e54d3c0e6ad28c69b5d88c1d2929c9d5f94ccf7afbb34df1199d1b5291e59f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54d3c0e6ad28c69b5d88c1d2929c9d5f94ccf7afbb34df1199d1b5291e59f9f", kill_on_drop: false }`
[INFO] [stdout] e54d3c0e6ad28c69b5d88c1d2929c9d5f94ccf7afbb34df1199d1b5291e59f9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c32040ea2a01f8728793208ed5ef77ad6f87fd494cec89762362c2f7cd0d0de2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c32040ea2a01f8728793208ed5ef77ad6f87fd494cec89762362c2f7cd0d0de2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking func_wrap v0.1.3
[INFO] [stderr]     Checking with_locals-proc_macros v0.3.0-rc1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> handle_let_bindings.rs:115:40
[INFO] [stdout]     |
[INFO] [stdout] 115 | ...                   panic!(*self.encountered_error = Some(err));
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 115 |                                 panic!("{}", *self.encountered_error = Some(err));
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 115 |                                 std::panic::panic_any(*self.encountered_error = Some(err));
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> handle_let_bindings.rs:286:29
[INFO] [stdout]     |
[INFO] [stdout] 286 | ...                   *self.encountered_error = Some(err)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 286 |                             "{}", *self.encountered_error = Some(err)
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 285 |                         | Err(err) => std::panic::panic_any(
[INFO] [stdout] 286 |                             *self.encountered_error = Some(err)
[INFO] [stdout] 287 |                         ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> handle_let_bindings.rs:364:20
[INFO] [stdout]     |
[INFO] [stdout] 364 |               panic!(*self.encountered_error = Some(Error::new(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 365 | |                 attr.span(),
[INFO] [stdout] 366 | |                 "`#[with]` must be applied to a `let` binding.",
[INFO] [stdout] 367 | |             )));
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 364 |             panic!("{}", *self.encountered_error = Some(Error::new(
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 364 |             std::panic::panic_any(*self.encountered_error = Some(Error::new(
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> handle_let_bindings.rs:115:40
[INFO] [stdout]     |
[INFO] [stdout] 115 | ...                   panic!(*self.encountered_error = Some(err));
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 115 |                                 panic!("{}", *self.encountered_error = Some(err));
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 115 |                                 std::panic::panic_any(*self.encountered_error = Some(err));
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> handle_let_bindings.rs:286:29
[INFO] [stdout]     |
[INFO] [stdout] 286 | ...                   *self.encountered_error = Some(err)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 286 |                             "{}", *self.encountered_error = Some(err)
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 285 |                         | Err(err) => std::panic::panic_any(
[INFO] [stdout] 286 |                             *self.encountered_error = Some(err)
[INFO] [stdout] 287 |                         ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> handle_let_bindings.rs:364:20
[INFO] [stdout]     |
[INFO] [stdout] 364 |               panic!(*self.encountered_error = Some(Error::new(
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 365 | |                 attr.span(),
[INFO] [stdout] 366 | |                 "`#[with]` must be applied to a `let` binding.",
[INFO] [stdout] 367 | |             )));
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 364 |             panic!("{}", *self.encountered_error = Some(Error::new(
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 364 |             std::panic::panic_any(*self.encountered_error = Some(Error::new(
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.31s
[INFO] running `Command { std: "docker" "inspect" "c32040ea2a01f8728793208ed5ef77ad6f87fd494cec89762362c2f7cd0d0de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32040ea2a01f8728793208ed5ef77ad6f87fd494cec89762362c2f7cd0d0de2", kill_on_drop: false }`
[INFO] [stdout] c32040ea2a01f8728793208ed5ef77ad6f87fd494cec89762362c2f7cd0d0de2