[INFO] cloning repository https://github.com/SebastiaanYN/rust-json-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SebastiaanYN/rust-json-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSebastiaanYN%2Frust-json-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSebastiaanYN%2Frust-json-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeba2fe8ff1763cfbcf6ced794c924c8daaf120e
[INFO] checking SebastiaanYN/rust-json-parser against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSebastiaanYN%2Frust-json-parser" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SebastiaanYN/rust-json-parser on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SebastiaanYN/rust-json-parser
[INFO] finished tweaking git repo https://github.com/SebastiaanYN/rust-json-parser
[INFO] tweaked toml for git repo https://github.com/SebastiaanYN/rust-json-parser written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/SebastiaanYN/rust-json-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9481f29241f60b272a8a78006da43692ae9def5b85a9d5be56bc918ec6361ce
[INFO] running `Command { std: "docker" "start" "-a" "f9481f29241f60b272a8a78006da43692ae9def5b85a9d5be56bc918ec6361ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9481f29241f60b272a8a78006da43692ae9def5b85a9d5be56bc918ec6361ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9481f29241f60b272a8a78006da43692ae9def5b85a9d5be56bc918ec6361ce", kill_on_drop: false }`
[INFO] [stdout] f9481f29241f60b272a8a78006da43692ae9def5b85a9d5be56bc918ec6361ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 648ea5f43e82f26037d221288226e81caac117798dbc421667f8dfafcfd93fa9
[INFO] running `Command { std: "docker" "start" "-a" "648ea5f43e82f26037d221288226e81caac117798dbc421667f8dfafcfd93fa9", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-json-parser v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |         Err(v) => panic!(v),
[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] 28 |         Err(v) => panic!("{}", v),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 28 |         Err(v) => std::panic::panic_any(v),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |         Err(v) => panic!(v),
[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] 28 |         Err(v) => panic!("{}", v),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 28 |         Err(v) => std::panic::panic_any(v),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "648ea5f43e82f26037d221288226e81caac117798dbc421667f8dfafcfd93fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648ea5f43e82f26037d221288226e81caac117798dbc421667f8dfafcfd93fa9", kill_on_drop: false }`
[INFO] [stdout] 648ea5f43e82f26037d221288226e81caac117798dbc421667f8dfafcfd93fa9