[INFO] fetching crate protobuf-codegen 2.18.2...
[INFO] checking protobuf-codegen-2.18.2 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate protobuf-codegen 2.18.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate protobuf-codegen 2.18.2 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protobuf-codegen 2.18.2
[INFO] finished tweaking crates.io crate protobuf-codegen 2.18.2
[INFO] tweaked toml for crates.io crate protobuf-codegen 2.18.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate protobuf-codegen 2.18.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c19ee1efccbda8c429e9317b3d50c200ec0530f1fed22a2c014af71bdb353378
[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" "c19ee1efccbda8c429e9317b3d50c200ec0530f1fed22a2c014af71bdb353378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c19ee1efccbda8c429e9317b3d50c200ec0530f1fed22a2c014af71bdb353378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19ee1efccbda8c429e9317b3d50c200ec0530f1fed22a2c014af71bdb353378", kill_on_drop: false }`
[INFO] [stdout] c19ee1efccbda8c429e9317b3d50c200ec0530f1fed22a2c014af71bdb353378
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38b9094b52368c519aa51b0a0cbf88e6932c6fcac3b1e194fa8a9c0fb7fe4ef5
[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" "38b9094b52368c519aa51b0a0cbf88e6932c6fcac3b1e194fa8a9c0fb7fe4ef5", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.18.2
[INFO] [stderr]     Checking protobuf-codegen v2.18.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/protobuf_name.rs:248:59
[INFO] [stdout]     |
[INFO] [stdout] 248 |         assert!(path.is_empty() || path.starts_with("."), path);
[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] 248 |         assert!(path.is_empty() || path.starts_with("."), "{}", path);
[INFO] [stdout]     |                                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/protobuf_name.rs:249:39
[INFO] [stdout]     |
[INFO] [stdout] 249 |         assert!(!path.ends_with("."), path);
[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] 249 |         assert!(!path.ends_with("."), "{}", path);
[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/protobuf_name.rs:248:59
[INFO] [stdout]     |
[INFO] [stdout] 248 |         assert!(path.is_empty() || path.starts_with("."), path);
[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] 248 |         assert!(path.is_empty() || path.starts_with("."), "{}", path);
[INFO] [stdout]     |                                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/protobuf_name.rs:249:39
[INFO] [stdout]     |
[INFO] [stdout] 249 |         assert!(!path.ends_with("."), path);
[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] 249 |         assert!(!path.ends_with("."), "{}", path);
[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 6.95s
[INFO] running `Command { std: "docker" "inspect" "38b9094b52368c519aa51b0a0cbf88e6932c6fcac3b1e194fa8a9c0fb7fe4ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38b9094b52368c519aa51b0a0cbf88e6932c6fcac3b1e194fa8a9c0fb7fe4ef5", kill_on_drop: false }`
[INFO] [stdout] 38b9094b52368c519aa51b0a0cbf88e6932c6fcac3b1e194fa8a9c0fb7fe4ef5