[INFO] fetching crate hfs 1.0.0...
[INFO] checking hfs-1.0.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate hfs 1.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate hfs 1.0.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hfs 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hfs 1.0.0
[INFO] tweaked toml for crates.io crate hfs 1.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate hfs 1.0.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 035c2fd4e44a497951f634d93c464a23c044a57c999f856561afb76c65b6befc
[INFO] running `Command { std: "docker" "start" "-a" "035c2fd4e44a497951f634d93c464a23c044a57c999f856561afb76c65b6befc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "035c2fd4e44a497951f634d93c464a23c044a57c999f856561afb76c65b6befc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "035c2fd4e44a497951f634d93c464a23c044a57c999f856561afb76c65b6befc", kill_on_drop: false }`
[INFO] [stdout] 035c2fd4e44a497951f634d93c464a23c044a57c999f856561afb76c65b6befc
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 539e431f10c76622dd430271a7b284d61772239534cd3ddc670f6ccfc98742ee
[INFO] running `Command { std: "docker" "start" "-a" "539e431f10c76622dd430271a7b284d61772239534cd3ddc670f6ccfc98742ee", kill_on_drop: false }`
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling concat-idents v1.1.5
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking hfs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] ...
[INFO] [stdout] 501 |     pub unsafe fn children_slice<'a, U>(
[INFO] [stdout]     |                                  -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 505 |     ) -> traits!(&'a [U]) {
[INFO] [stdout]     |          ---------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] ...
[INFO] [stdout] 518 |     pub unsafe fn children_mut_slice<'a, U>(
[INFO] [stdout]     |                                      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 522 |     ) -> traits!(&'a mut [U]) {
[INFO] [stdout]     |          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] ...
[INFO] [stdout] 501 |     pub unsafe fn children_slice<'a, U>(
[INFO] [stdout]     |                                  -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 505 |     ) -> traits!(&'a [U]) {
[INFO] [stdout]     |          ---------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] ...
[INFO] [stdout] 518 |     pub unsafe fn children_mut_slice<'a, U>(
[INFO] [stdout]     |                                      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 522 |     ) -> traits!(&'a mut [U]) {
[INFO] [stdout]     |          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.77s
[INFO] running `Command { std: "docker" "inspect" "539e431f10c76622dd430271a7b284d61772239534cd3ddc670f6ccfc98742ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539e431f10c76622dd430271a7b284d61772239534cd3ddc670f6ccfc98742ee", kill_on_drop: false }`
[INFO] [stdout] 539e431f10c76622dd430271a7b284d61772239534cd3ddc670f6ccfc98742ee