[INFO] fetching crate kern 1.7.1...
[INFO] checking kern-1.7.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate kern 1.7.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate kern 1.7.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kern 1.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate kern 1.7.1
[INFO] tweaked toml for crates.io crate kern 1.7.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate kern 1.7.1 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc75192b034cb328c5da300dab6fc7d633ae159b0d9612758200fb36f929b0be
[INFO] running `Command { std: "docker" "start" "-a" "cc75192b034cb328c5da300dab6fc7d633ae159b0d9612758200fb36f929b0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc75192b034cb328c5da300dab6fc7d633ae159b0d9612758200fb36f929b0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc75192b034cb328c5da300dab6fc7d633ae159b0d9612758200fb36f929b0be", kill_on_drop: false }`
[INFO] [stdout] cc75192b034cb328c5da300dab6fc7d633ae159b0d9612758200fb36f929b0be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd2228a5943129320584e5c861a4f1b08ed50a4e7c7a4a954fa27aca23fc050f
[INFO] running `Command { std: "docker" "start" "-a" "cd2228a5943129320584e5c861a4f1b08ed50a4e7c7a4a954fa27aca23fc050f", kill_on_drop: false }`
[INFO] [stderr]     Checking kern v1.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/cli.rs:47:46
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'a> CliBuilder<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn build(self, raw: &'a [String]) -> Command {
[INFO] [stdout]    |                                              ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/meta.rs:18:50
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn init_version(cargo_toml: &'static str) -> &str {
[INFO] [stdout]    |                                                  ^ this elided lifetime gets resolved as `'static`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying it explicitly
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn init_version(cargo_toml: &'static str) -> &'static str {
[INFO] [stdout]    |                                                   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/meta.rs:27:47
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn init_name(cargo_toml: &'static str) -> &str {
[INFO] [stdout]    |                                               ^ this elided lifetime gets resolved as `'static`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying it explicitly
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn init_name(cargo_toml: &'static str) -> &'static str {
[INFO] [stdout]    |                                                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/cli.rs:47:46
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'a> CliBuilder<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn build(self, raw: &'a [String]) -> Command {
[INFO] [stdout]    |                                              ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/meta.rs:18:50
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn init_version(cargo_toml: &'static str) -> &str {
[INFO] [stdout]    |                                                  ^ this elided lifetime gets resolved as `'static`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying it explicitly
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn init_version(cargo_toml: &'static str) -> &'static str {
[INFO] [stdout]    |                                                   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/meta.rs:27:47
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn init_name(cargo_toml: &'static str) -> &str {
[INFO] [stdout]    |                                               ^ this elided lifetime gets resolved as `'static`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying it explicitly
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn init_name(cargo_toml: &'static str) -> &'static str {
[INFO] [stdout]    |                                                +++++++
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "cd2228a5943129320584e5c861a4f1b08ed50a4e7c7a4a954fa27aca23fc050f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2228a5943129320584e5c861a4f1b08ed50a4e7c7a4a954fa27aca23fc050f", kill_on_drop: false }`
[INFO] [stdout] cd2228a5943129320584e5c861a4f1b08ed50a4e7c7a4a954fa27aca23fc050f