[INFO] fetching crate cmdr_macro 0.3.12...
[INFO] checking cmdr_macro-0.3.12 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate cmdr_macro 0.3.12 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cmdr_macro 0.3.12 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cmdr_macro 0.3.12
[INFO] finished tweaking crates.io crate cmdr_macro 0.3.12
[INFO] tweaked toml for crates.io crate cmdr_macro 0.3.12 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "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-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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed37f1f334bddff00f3c25a4ff4ede810626fd128eec54adf7d4cda339e41da6
[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" "ed37f1f334bddff00f3c25a4ff4ede810626fd128eec54adf7d4cda339e41da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed37f1f334bddff00f3c25a4ff4ede810626fd128eec54adf7d4cda339e41da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed37f1f334bddff00f3c25a4ff4ede810626fd128eec54adf7d4cda339e41da6", kill_on_drop: false }`
[INFO] [stdout] ed37f1f334bddff00f3c25a4ff4ede810626fd128eec54adf7d4cda339e41da6
[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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 250b174e97c2feb43dc7cfd1e841e2fa99dd4f5ea1dabd2577963c4d0cbe9fee
[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" "250b174e97c2feb43dc7cfd1e841e2fa99dd4f5ea1dabd2577963c4d0cbe9fee", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking proc-macro2 v1.0.27
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking cmdr_macro v0.3.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/commands.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 107 | |                     "Wrong return type for command {}, should be CommandReult",
[INFO] [stdout] 108 | |                     method_ident
[INFO] [stdout] 109 | |                 ));
[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]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 panic!(
[INFO] [stdout] 107 |                     "Wrong return type for command {}, should be CommandReult",
[INFO] [stdout] 108 |                     method_ident
[INFO] [stdout] 109 |                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/commands.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |           _ => panic!(format!(
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 127 | |             "Invalid signature for command {}, expected '&mut self, args &[String]'",
[INFO] [stdout] 128 | |             method_ident
[INFO] [stdout] 129 | |         )),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 126 |         _ => panic!(
[INFO] [stdout] 127 |             "Invalid signature for command {}, expected '&mut self, args &[String]'",
[INFO] [stdout] 128 |             method_ident
[INFO] [stdout] 129 |         ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/commands.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 107 | |                     "Wrong return type for command {}, should be CommandReult",
[INFO] [stdout] 108 | |                     method_ident
[INFO] [stdout] 109 | |                 ));
[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]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 panic!(
[INFO] [stdout] 107 |                     "Wrong return type for command {}, should be CommandReult",
[INFO] [stdout] 108 |                     method_ident
[INFO] [stdout] 109 |                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/commands.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |           _ => panic!(format!(
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 127 | |             "Invalid signature for command {}, expected '&mut self, args &[String]'",
[INFO] [stdout] 128 | |             method_ident
[INFO] [stdout] 129 | |         )),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 126 |         _ => panic!(
[INFO] [stdout] 127 |             "Invalid signature for command {}, expected '&mut self, args &[String]'",
[INFO] [stdout] 128 |             method_ident
[INFO] [stdout] 129 |         ),
[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 4.95s
[INFO] running `Command { std: "docker" "inspect" "250b174e97c2feb43dc7cfd1e841e2fa99dd4f5ea1dabd2577963c4d0cbe9fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "250b174e97c2feb43dc7cfd1e841e2fa99dd4f5ea1dabd2577963c4d0cbe9fee", kill_on_drop: false }`
[INFO] [stdout] 250b174e97c2feb43dc7cfd1e841e2fa99dd4f5ea1dabd2577963c4d0cbe9fee