[INFO] fetching crate protobuf-codegen-no-elision 2.0.4...
[INFO] testing protobuf-codegen-no-elision-2.0.4 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate protobuf-codegen-no-elision 2.0.4 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate protobuf-codegen-no-elision 2.0.4 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72895acceb88280d3310c21d468baaf48f6b8c159e33a122be3a03dbb85b0416
[INFO] running `Command { std: "docker" "start" "-a" "72895acceb88280d3310c21d468baaf48f6b8c159e33a122be3a03dbb85b0416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72895acceb88280d3310c21d468baaf48f6b8c159e33a122be3a03dbb85b0416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72895acceb88280d3310c21d468baaf48f6b8c159e33a122be3a03dbb85b0416", kill_on_drop: false }`
[INFO] [stdout] 72895acceb88280d3310c21d468baaf48f6b8c159e33a122be3a03dbb85b0416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dea6474972b65e349a77f422977376fe489d82951d644faac92862f77cbb165
[INFO] running `Command { std: "docker" "start" "-a" "4dea6474972b65e349a77f422977376fe489d82951d644faac92862f77cbb165", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.0.4
[INFO] [stderr]    Compiling 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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/field.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     name: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_scope`
[INFO] [stdout]    --> src/field.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     root_scope: &'a RootScope<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `oneof`
[INFO] [stdout]   --> src/oneof.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     oneof: &'a OneofGen<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variant`
[INFO] [stdout]   --> src/oneof.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     variant: OneofVariantWithContext<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `customize`
[INFO] [stdout]    --> src/oneof.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     customize: Customize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.03s
[INFO] running `Command { std: "docker" "inspect" "4dea6474972b65e349a77f422977376fe489d82951d644faac92862f77cbb165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dea6474972b65e349a77f422977376fe489d82951d644faac92862f77cbb165", kill_on_drop: false }`
[INFO] [stdout] 4dea6474972b65e349a77f422977376fe489d82951d644faac92862f77cbb165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2e46a714d5c43423937e18428ce396d0c2454c3b5a7799f8e6ac2f29442c271
[INFO] running `Command { std: "docker" "start" "-a" "a2e46a714d5c43423937e18428ce396d0c2454c3b5a7799f8e6ac2f29442c271", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/field.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     name: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_scope`
[INFO] [stdout]    --> src/field.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     root_scope: &'a RootScope<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `oneof`
[INFO] [stdout]   --> src/oneof.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     oneof: &'a OneofGen<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variant`
[INFO] [stdout]   --> src/oneof.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     variant: OneofVariantWithContext<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `customize`
[INFO] [stdout]    --> src/oneof.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     customize: Customize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[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: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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/field.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     name: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_scope`
[INFO] [stdout]    --> src/field.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     root_scope: &'a RootScope<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `oneof`
[INFO] [stdout]   --> src/oneof.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     oneof: &'a OneofGen<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variant`
[INFO] [stdout]   --> src/oneof.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     variant: OneofVariantWithContext<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `customize`
[INFO] [stdout]    --> src/oneof.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     customize: Customize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "a2e46a714d5c43423937e18428ce396d0c2454c3b5a7799f8e6ac2f29442c271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e46a714d5c43423937e18428ce396d0c2454c3b5a7799f8e6ac2f29442c271", kill_on_drop: false }`
[INFO] [stdout] a2e46a714d5c43423937e18428ce396d0c2454c3b5a7799f8e6ac2f29442c271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5c5a03a3d6764bdf14edd1cf46545962b30d4760e58fe7d2a462edf1c1943a21
[INFO] running `Command { std: "docker" "start" "-a" "5c5a03a3d6764bdf14edd1cf46545962b30d4760e58fe7d2a462edf1c1943a21", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/message.rs:268:69
[INFO] [stderr]     |
[INFO] [stderr] 268 |                     self.write_descriptor_field("fields", field, w);;
[INFO] [stderr]     |                                                                     ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/code_writer.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 |     writer: &'a mut (Write + 'a),
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use `dyn`: `dyn Write + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/code_writer.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(writer: &'a mut Write) -> CodeWriter<'a> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> src/field.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     name: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `root_scope`
[INFO] [stderr]    --> src/field.rs:405:5
[INFO] [stderr]     |
[INFO] [stderr] 405 |     root_scope: &'a RootScope<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `oneof`
[INFO] [stderr]   --> src/oneof.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     oneof: &'a OneofGen<'a>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variant`
[INFO] [stderr]   --> src/oneof.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     variant: OneofVariantWithContext<'a>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `customize`
[INFO] [stderr]    --> src/oneof.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     customize: Customize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `protobuf-codegen-no-elision` (lib) generated 8 warnings
[INFO] [stderr] warning: `protobuf-codegen-no-elision` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/protobuf_codegen_no_elision-282649b8e72886e2)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests protobuf-codegen-no-elision
[INFO] [stdout] test float::test::test_format_protobuf_float ... ok
[INFO] [stdout] test rust_types_values::test_file_last_component ... ok
[INFO] [stdout] test well_known_types::test::test_is_well_known_type_full ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/message.rs:268:69
[INFO] [stderr]     |
[INFO] [stderr] 268 |                     self.write_descriptor_field("fields", field, w);;
[INFO] [stderr]     |                                                                     ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5c5a03a3d6764bdf14edd1cf46545962b30d4760e58fe7d2a462edf1c1943a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c5a03a3d6764bdf14edd1cf46545962b30d4760e58fe7d2a462edf1c1943a21", kill_on_drop: false }`
[INFO] [stdout] 5c5a03a3d6764bdf14edd1cf46545962b30d4760e58fe7d2a462edf1c1943a21