[INFO] fetching crate earl-lang-syntax 1.0.0...
[INFO] checking earl-lang-syntax-1.0.0 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate earl-lang-syntax 1.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate earl-lang-syntax 1.0.0 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate earl-lang-syntax 1.0.0
[INFO] finished tweaking crates.io crate earl-lang-syntax 1.0.0
[INFO] tweaked toml for crates.io crate earl-lang-syntax 1.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 651f2c3e6dac1b2269edbf00bd74c00d63950dabf08914041bd0ab94a101735f
[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" "651f2c3e6dac1b2269edbf00bd74c00d63950dabf08914041bd0ab94a101735f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "651f2c3e6dac1b2269edbf00bd74c00d63950dabf08914041bd0ab94a101735f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "651f2c3e6dac1b2269edbf00bd74c00d63950dabf08914041bd0ab94a101735f", kill_on_drop: false }`
[INFO] [stdout] 651f2c3e6dac1b2269edbf00bd74c00d63950dabf08914041bd0ab94a101735f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d95092d88c86ffa49f5cb1695623bf78dc20c604c58aea72d4c4007f8c3b461
[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" "3d95092d88c86ffa49f5cb1695623bf78dc20c604c58aea72d4c4007f8c3b461", kill_on_drop: false }`
[INFO] [stderr]     Checking earl-lang-syntax v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1297:68
[INFO] [stdout]      |
[INFO] [stdout] 1297 |                 SyntaxError::ParsingError(parsing_error) => panic!(parsing_error.error_message),
[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] 1297 |                 SyntaxError::ParsingError(parsing_error) => panic!("{}", parsing_error.error_message),
[INFO] [stdout]      |                                                                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1297 |                 SyntaxError::ParsingError(parsing_error) => std::panic::panic_any(parsing_error.error_message),
[INFO] [stdout]      |                                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1298:71
[INFO] [stdout]      |
[INFO] [stdout] 1298 |                 SyntaxError::AssumptionError(error_message) => panic!(error_message),
[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] 1298 |                 SyntaxError::AssumptionError(error_message) => panic!("{}", error_message),
[INFO] [stdout]      |                                                                       ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1298 |                 SyntaxError::AssumptionError(error_message) => std::panic::panic_any(error_message),
[INFO] [stdout]      |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1971:68
[INFO] [stdout]      |
[INFO] [stdout] 1971 |                 SyntaxError::ParsingError(parsing_error) => panic!(parsing_error.error_message),
[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] 1971 |                 SyntaxError::ParsingError(parsing_error) => panic!("{}", parsing_error.error_message),
[INFO] [stdout]      |                                                                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1971 |                 SyntaxError::ParsingError(parsing_error) => std::panic::panic_any(parsing_error.error_message),
[INFO] [stdout]      |                                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1972:71
[INFO] [stdout]      |
[INFO] [stdout] 1972 |                 SyntaxError::AssumptionError(error_message) => panic!(error_message),
[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] 1972 |                 SyntaxError::AssumptionError(error_message) => panic!("{}", error_message),
[INFO] [stdout]      |                                                                       ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1972 |                 SyntaxError::AssumptionError(error_message) => std::panic::panic_any(error_message),
[INFO] [stdout]      |                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "3d95092d88c86ffa49f5cb1695623bf78dc20c604c58aea72d4c4007f8c3b461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d95092d88c86ffa49f5cb1695623bf78dc20c604c58aea72d4c4007f8c3b461", kill_on_drop: false }`
[INFO] [stdout] 3d95092d88c86ffa49f5cb1695623bf78dc20c604c58aea72d4c4007f8c3b461