[INFO] fetching crate nrc-protobuf 2.8.0...
[INFO] testing nrc-protobuf-2.8.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate nrc-protobuf 2.8.0 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate nrc-protobuf 2.8.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nrc-protobuf 2.8.0
[INFO] finished tweaking crates.io crate nrc-protobuf 2.8.0
[INFO] tweaked toml for crates.io crate nrc-protobuf 2.8.0 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c570392cfafd3a88425b6a1858199e0a215af93d4740da58dfaa7b441ce8de17
[INFO] running `Command { std: "docker" "start" "-a" "c570392cfafd3a88425b6a1858199e0a215af93d4740da58dfaa7b441ce8de17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c570392cfafd3a88425b6a1858199e0a215af93d4740da58dfaa7b441ce8de17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c570392cfafd3a88425b6a1858199e0a215af93d4740da58dfaa7b441ce8de17", kill_on_drop: false }`
[INFO] [stdout] c570392cfafd3a88425b6a1858199e0a215af93d4740da58dfaa7b441ce8de17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4489bc522ddb8d70d64b299cec6b0cf2f5909371d8bd3e7517b62398a4002578
[INFO] running `Command { std: "docker" "start" "-a" "4489bc522ddb8d70d64b299cec6b0cf2f5909371d8bd3e7517b62398a4002578", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling nrc-protobuf v2.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/reflect/accessor.rs:126:29
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn get_field<'a>(&self, &'a M) -> &'a R;
[INFO] [stdout]     |                             ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &'a M`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/reflect/accessor.rs:127:29
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn mut_field<'a>(&self, &'a mut M) -> &'a mut R;
[INFO] [stdout]     |                             ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &'a mut M`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::parse_length_delimited_from`
[INFO] [stdout]   --> src/lib.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use core::parse_length_delimited_from;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::parse_length_delimited_from_bytes`
[INFO] [stdout]   --> src/lib.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use core::parse_length_delimited_from_bytes;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::parse_length_delimited_from_reader`
[INFO] [stdout]   --> src/lib.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub use core::parse_length_delimited_from_reader;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lazy.rs:35:41
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub const ONCE_INIT: sync::Once = sync::ONCE_INIT;
[INFO] [stdout]    |                                         ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:73:49
[INFO] [stdout]    |
[INFO] [stdout] 73 |             &ProtobufError::IoError(ref e) => e.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:86:47
[INFO] [stdout]    |
[INFO] [stdout] 86 |             &ProtobufError::Utf8(ref e) => &e.description(),
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/stream.rs:813:9
[INFO] [stdout]     |
[INFO] [stdout] 813 |         mem::replace(target, s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/stream.rs:1081:13
[INFO] [stdout]      |
[INFO] [stdout] 1081 |             &mut self.buffer[self.position..self.position + bytes.len()].copy_from_slice(bytes);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1081 |             let _ = &mut self.buffer[self.position..self.position + bytes.len()].copy_from_slice(bytes);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buf_read_iter.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         &mut buf[..len].copy_from_slice(&rem[..len]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 327 |         let _ = &mut buf[..len].copy_from_slice(&rem[..len]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.09s
[INFO] running `Command { std: "docker" "inspect" "4489bc522ddb8d70d64b299cec6b0cf2f5909371d8bd3e7517b62398a4002578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4489bc522ddb8d70d64b299cec6b0cf2f5909371d8bd3e7517b62398a4002578", kill_on_drop: false }`
[INFO] [stdout] 4489bc522ddb8d70d64b299cec6b0cf2f5909371d8bd3e7517b62398a4002578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 921dde0bc1815bcc232561d64bbc8e327f10348a46d5246d210eafc72319d831
[INFO] running `Command { std: "docker" "start" "-a" "921dde0bc1815bcc232561d64bbc8e327f10348a46d5246d210eafc72319d831", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nrc-protobuf v2.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/../../protobuf-test-common/src/hex.rs: No such file or directory (os error 2)
[INFO] [stdout]   --> src/lib.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | mod hex;
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrc-protobuf` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "921dde0bc1815bcc232561d64bbc8e327f10348a46d5246d210eafc72319d831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921dde0bc1815bcc232561d64bbc8e327f10348a46d5246d210eafc72319d831", kill_on_drop: false }`
[INFO] [stdout] 921dde0bc1815bcc232561d64bbc8e327f10348a46d5246d210eafc72319d831