[INFO] fetching crate protobuf-codegen-no-elision 2.0.4...
[INFO] checking protobuf-codegen-no-elision-2.0.4 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate protobuf-codegen-no-elision 2.0.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate protobuf-codegen-no-elision 2.0.4 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protobuf-codegen-no-elision 2.0.4
[INFO] finished tweaking crates.io crate protobuf-codegen-no-elision 2.0.4
[INFO] tweaked toml for crates.io crate protobuf-codegen-no-elision 2.0.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05f617f2bf54ef33fb3893db0f6e6b09e6619b447916cb468edaa58d62d19ba7
[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" "05f617f2bf54ef33fb3893db0f6e6b09e6619b447916cb468edaa58d62d19ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05f617f2bf54ef33fb3893db0f6e6b09e6619b447916cb468edaa58d62d19ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f617f2bf54ef33fb3893db0f6e6b09e6619b447916cb468edaa58d62d19ba7", kill_on_drop: false }`
[INFO] [stdout] 05f617f2bf54ef33fb3893db0f6e6b09e6619b447916cb468edaa58d62d19ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5154d6c69e4aa9dbf4c8ba376a87dbf4d954294d84abcff8cd45ffd8949dbe9c
[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" "5154d6c69e4aa9dbf4c8ba376a87dbf4d954294d84abcff8cd45ffd8949dbe9c", kill_on_drop: false }`
[INFO] [stderr]     Checking protobuf-codegen-no-elision v2.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/message.rs:268:69
[INFO] [stdout]     |
[INFO] [stdout] 268 |                     self.write_descriptor_field("fields", field, w);;
[INFO] [stdout]     |                                                                     ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/code_writer.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 |     writer: &'a mut (Write + 'a),
[INFO] [stdout]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn Write + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/message.rs:268:69
[INFO] [stdout]     |
[INFO] [stdout] 268 |                     self.write_descriptor_field("fields", field, w);;
[INFO] [stdout]     |                                                                     ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/code_writer.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(writer: &'a mut Write) -> CodeWriter<'a> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/code_writer.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 |     writer: &'a mut (Write + 'a),
[INFO] [stdout]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn Write + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/code_writer.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(writer: &'a mut Write) -> CodeWriter<'a> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/protobuf-bin-gen-rust-do-not-use.rs:15:70
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let fds = parse_from_reader::<FileDescriptorSet>(&mut is as &mut Read).unwrap();
[INFO] [stdout]    |                                                                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/protobuf-bin-gen-rust-do-not-use.rs:15:70
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let fds = parse_from_reader::<FileDescriptorSet>(&mut is as &mut Read).unwrap();
[INFO] [stdout]    |                                                                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "5154d6c69e4aa9dbf4c8ba376a87dbf4d954294d84abcff8cd45ffd8949dbe9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5154d6c69e4aa9dbf4c8ba376a87dbf4d954294d84abcff8cd45ffd8949dbe9c", kill_on_drop: false }`
[INFO] [stdout] 5154d6c69e4aa9dbf4c8ba376a87dbf4d954294d84abcff8cd45ffd8949dbe9c