[INFO] fetching crate rustbus 0.19.3...
[INFO] checking rustbus-0.19.3 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate rustbus 0.19.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rustbus 0.19.3
[INFO] finished tweaking crates.io crate rustbus 0.19.3
[INFO] tweaked toml for crates.io crate rustbus 0.19.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustbus 0.19.3 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustbus 0.19.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70d93cb17caf2b351d1ba9cd03276d813661abbd52c3efccd589581c12980900
[INFO] running `Command { std: "docker" "start" "-a" "70d93cb17caf2b351d1ba9cd03276d813661abbd52c3efccd589581c12980900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70d93cb17caf2b351d1ba9cd03276d813661abbd52c3efccd589581c12980900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d93cb17caf2b351d1ba9cd03276d813661abbd52c3efccd589581c12980900", kill_on_drop: false }`
[INFO] [stdout] 70d93cb17caf2b351d1ba9cd03276d813661abbd52c3efccd589581c12980900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fd532257ab1d637bcbdf50f8df320c72c0be74e2af7c2b76a8a6dd05b7750ad
[INFO] running `Command { std: "docker" "start" "-a" "5fd532257ab1d637bcbdf50f8df320c72c0be74e2af7c2b76a8a6dd05b7750ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking memchr v2.6.1
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]    Compiling rustbus_derive v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking rustbus v0.19.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `base::*`
[INFO] [stdout]  --> src/wire/marshal/traits.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use base::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base::*`
[INFO] [stdout]   --> src/wire/unmarshal/traits.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use base::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Variant` is never constructed
[INFO] [stdout]    --> src/wire/marshal/traits/container.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 316 | pub struct Variant<T: Marshal + Signature>(T);
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message_builder.rs:411:19
[INFO] [stdout]     |
[INFO] [stdout] 411 |     fn create_ctx(&mut self) -> MarshalContext {
[INFO] [stdout]     |                   ^^^^^^^^^     ^^^^^^^^^^^^^^ the same lifetimes are hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 411 |     fn create_ctx(&mut self) -> MarshalContext<'_, '_> {
[INFO] [stdout]     |                                               ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message_builder.rs:542:19
[INFO] [stdout]     |
[INFO] [stdout] 542 |     pub fn parser(&self) -> MessageBodyParser {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 542 |     pub fn parser(&self) -> MessageBodyParser<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message_builder.rs:899:22
[INFO] [stdout]     |
[INFO] [stdout] 899 |     pub fn get_param(&mut self) -> Result<crate::params::Param, UnmarshalError> {
[INFO] [stdout]     |                      ^^^^^^^^^            ^^^^^^^^^^^^^^^^^^^^ the same lifetimes are hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 899 |     pub fn get_param(&mut self) -> Result<crate::params::Param<'_, '_>, UnmarshalError> {
[INFO] [stdout]     |                                                               ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/params/conversion.rs:49:46
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn as_slice(&'a self) -> Option<&'a [Param]> {
[INFO] [stdout]    |                      --                  --  ^^^^^ the same lifetimes are hidden here
[INFO] [stdout]    |                      |                   |
[INFO] [stdout]    |                      |                   the same lifetime is named here
[INFO] [stdout]    |                      the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn as_slice(&'a self) -> Option<&'a [Param<'a, 'a>]> {
[INFO] [stdout]    |                                                   ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbus` (lib) due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5fd532257ab1d637bcbdf50f8df320c72c0be74e2af7c2b76a8a6dd05b7750ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fd532257ab1d637bcbdf50f8df320c72c0be74e2af7c2b76a8a6dd05b7750ad", kill_on_drop: false }`
[INFO] [stdout] 5fd532257ab1d637bcbdf50f8df320c72c0be74e2af7c2b76a8a6dd05b7750ad
