[INFO] fetching crate protobuf-codegen 2.22.1...
[INFO] checking protobuf-codegen-2.22.1 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate protobuf-codegen 2.22.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate protobuf-codegen 2.22.1 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protobuf-codegen 2.22.1
[INFO] finished tweaking crates.io crate protobuf-codegen 2.22.1
[INFO] tweaked toml for crates.io crate protobuf-codegen 2.22.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate protobuf-codegen 2.22.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "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" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5565b537df7a65c64aa358f719f28c5faeeedefe2892b292c1a14eaf8fa4991b
[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" "5565b537df7a65c64aa358f719f28c5faeeedefe2892b292c1a14eaf8fa4991b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5565b537df7a65c64aa358f719f28c5faeeedefe2892b292c1a14eaf8fa4991b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5565b537df7a65c64aa358f719f28c5faeeedefe2892b292c1a14eaf8fa4991b", kill_on_drop: false }`
[INFO] [stdout] 5565b537df7a65c64aa358f719f28c5faeeedefe2892b292c1a14eaf8fa4991b
[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" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 8cc63825d828e0f03a02c8ab95867c4bf89c2fb0f0a8bb5228435e0c77173b0a
[INFO] running `Command { std: "docker" "start" "-a" "8cc63825d828e0f03a02c8ab95867c4bf89c2fb0f0a8bb5228435e0c77173b0a", kill_on_drop: false }`
[INFO] [stderr]     Checking protobuf-codegen v2.22.1 (/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 2.47s
[INFO] running `Command { std: "docker" "inspect" "8cc63825d828e0f03a02c8ab95867c4bf89c2fb0f0a8bb5228435e0c77173b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc63825d828e0f03a02c8ab95867c4bf89c2fb0f0a8bb5228435e0c77173b0a", kill_on_drop: false }`
[INFO] [stdout] 8cc63825d828e0f03a02c8ab95867c4bf89c2fb0f0a8bb5228435e0c77173b0a