[INFO] fetching crate bung 0.1.0...
[INFO] checking bung-0.1.0 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate bung 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bung 0.1.0 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bung 0.1.0
[INFO] finished tweaking crates.io crate bung 0.1.0
[INFO] tweaked toml for crates.io crate bung 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmpv v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b288d5057cddfce8fb2a3f4a0dc710c7c777a5131a1f1f8f8b945a78a218a81
[INFO] running `Command { std: "docker" "start" "-a" "5b288d5057cddfce8fb2a3f4a0dc710c7c777a5131a1f1f8f8b945a78a218a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b288d5057cddfce8fb2a3f4a0dc710c7c777a5131a1f1f8f8b945a78a218a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b288d5057cddfce8fb2a3f4a0dc710c7c777a5131a1f1f8f8b945a78a218a81", kill_on_drop: false }`
[INFO] [stdout] 5b288d5057cddfce8fb2a3f4a0dc710c7c777a5131a1f1f8f8b945a78a218a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36ab8ba8e9390cf646bef61490a2d70fa822dfd9218b9ad3c9ebe7f22ed53c7e
[INFO] running `Command { std: "docker" "start" "-a" "36ab8ba8e9390cf646bef61490a2d70fa822dfd9218b9ad3c9ebe7f22ed53c7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking rmpv v1.0.1
[INFO] [stderr]     Checking bung v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/decode.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `byteorder` is imported redundantly
[INFO] [stdout]   --> src/decode.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use byteorder::{self, ReadBytesExt};
[INFO] [stdout]    |                 ^^^^ the item `byteorder` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/decode.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rmp` is imported redundantly
[INFO] [stdout]   --> src/decode.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rmp;
[INFO] [stdout]    |     ^^^ the item `rmp` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/encode.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rmp_serde`
[INFO] [stdout]   --> benches/buf.rs:29:21
[INFO] [stdout]    |
[INFO] [stdout] 29 |     vec.serialize(&mut rmp_serde::Serializer::new(&mut buf)).unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^ use of undeclared crate or module `rmp_serde`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 5  + use bung::Serializer;
[INFO] [stdout]    |
[INFO] [stdout] 5  + use serde::Serializer;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Serializer`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 29 -     vec.serialize(&mut rmp_serde::Serializer::new(&mut buf)).unwrap();
[INFO] [stdout] 29 +     vec.serialize(&mut Serializer::new(&mut buf)).unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rmp_serde`
[INFO] [stdout]   --> benches/buf.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |         <Vec<String>>::deserialize(&mut rmp_serde::Deserializer::new(&buf[..])).unwrap();
[INFO] [stdout]    |                                         ^^^^^^^^^ use of undeclared crate or module `rmp_serde`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 5  + use bung::Deserializer;
[INFO] [stdout]    |
[INFO] [stdout] 5  + use serde::Deserializer;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Deserializer`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 32 -         <Vec<String>>::deserialize(&mut rmp_serde::Deserializer::new(&buf[..])).unwrap();
[INFO] [stdout] 32 +         <Vec<String>>::deserialize(&mut Deserializer::new(&buf[..])).unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/decode.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `byteorder` is imported redundantly
[INFO] [stdout]   --> src/decode.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use byteorder::{self, ReadBytesExt};
[INFO] [stdout]    |                 ^^^^ the item `byteorder` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/decode.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rmp` is imported redundantly
[INFO] [stdout]   --> src/decode.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rmp;
[INFO] [stdout]    |     ^^^ the item `rmp` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/encode.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bung` (bench "buf") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "36ab8ba8e9390cf646bef61490a2d70fa822dfd9218b9ad3c9ebe7f22ed53c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ab8ba8e9390cf646bef61490a2d70fa822dfd9218b9ad3c9ebe7f22ed53c7e", kill_on_drop: false }`
[INFO] [stdout] 36ab8ba8e9390cf646bef61490a2d70fa822dfd9218b9ad3c9ebe7f22ed53c7e
