[INFO] fetching crate protobuf-codegen 2.22.1...
[INFO] checking protobuf-codegen-2.22.1 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate protobuf-codegen 2.22.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate protobuf-codegen 2.22.1 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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-12/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bdc8987e60faeba9d2972956d36d93c1ae0ebad41053bc669dec40324d3dbd5
[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" "3bdc8987e60faeba9d2972956d36d93c1ae0ebad41053bc669dec40324d3dbd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bdc8987e60faeba9d2972956d36d93c1ae0ebad41053bc669dec40324d3dbd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdc8987e60faeba9d2972956d36d93c1ae0ebad41053bc669dec40324d3dbd5", kill_on_drop: false }`
[INFO] [stdout] 3bdc8987e60faeba9d2972956d36d93c1ae0ebad41053bc669dec40324d3dbd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe6573a8efc2a98552c3e038c91576cf6a3ae18e42d070070d7870dc9dcfd84a
[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" "fe6573a8efc2a98552c3e038c91576cf6a3ae18e42d070070d7870dc9dcfd84a", 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: 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "fe6573a8efc2a98552c3e038c91576cf6a3ae18e42d070070d7870dc9dcfd84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe6573a8efc2a98552c3e038c91576cf6a3ae18e42d070070d7870dc9dcfd84a", kill_on_drop: false }`
[INFO] [stdout] fe6573a8efc2a98552c3e038c91576cf6a3ae18e42d070070d7870dc9dcfd84a