[INFO] fetching crate symbolic-proguard 7.5.0...
[INFO] checking symbolic-proguard-7.5.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate symbolic-proguard 7.5.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate symbolic-proguard 7.5.0 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 symbolic-proguard 7.5.0
[INFO] finished tweaking crates.io crate symbolic-proguard 7.5.0
[INFO] tweaked toml for crates.io crate symbolic-proguard 7.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[INFO] [stderr]       Adding debugid v0.7.3 (available: v0.8.0)
[INFO] [stderr]       Adding proguard v4.1.1 (available: v5.5.0)
[INFO] [stderr]       Adding sha1 v0.6.1 (available: v0.10.6)
[INFO] [stderr]       Adding symbolic-common v7.5.0 (available: v12.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding synstructure v0.12.6 (available: v0.13.1)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.10.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a434fe7f7f40c9480f1146432e7be3c489b9bb9f05e26c11d311de5cc1bd8531
[INFO] running `Command { std: "docker" "start" "-a" "a434fe7f7f40c9480f1146432e7be3c489b9bb9f05e26c11d311de5cc1bd8531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a434fe7f7f40c9480f1146432e7be3c489b9bb9f05e26c11d311de5cc1bd8531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a434fe7f7f40c9480f1146432e7be3c489b9bb9f05e26c11d311de5cc1bd8531", kill_on_drop: false }`
[INFO] [stdout] a434fe7f7f40c9480f1146432e7be3c489b9bb9f05e26c11d311de5cc1bd8531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e1940c6fbc149f1c872c50475f77b53db749a476699f6a3866256fc374e71977
[INFO] running `Command { std: "docker" "start" "-a" "e1940c6fbc149f1c872c50475f77b53db749a476699f6a3866256fc374e71977", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking sha1_smol v1.0.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking gimli v0.31.0
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking debugid v0.7.3
[INFO] [stderr]     Checking proguard v4.1.1
[INFO] [stderr]     Checking object v0.36.4
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking addr2line v0.24.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking symbolic-proguard v7.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/lib.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<'slf, 'a: 'slf> AsSelf<'slf> for Inner<'a> {
[INFO] [stdout]    |      ---- lifetime `'slf` declared here
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn as_self(&'slf self) -> &Self::Ref {
[INFO] [stdout]    |                               ^ this elided lifetime gets resolved as `'slf`
[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/lib.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<'slf, 'a: 'slf> AsSelf<'slf> for Inner<'a> {
[INFO] [stdout]    |      ---- lifetime `'slf` declared here
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn as_self(&'slf self) -> &Self::Ref {
[INFO] [stdout]    |                               ^ this elided lifetime gets resolved as `'slf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "e1940c6fbc149f1c872c50475f77b53db749a476699f6a3866256fc374e71977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1940c6fbc149f1c872c50475f77b53db749a476699f6a3866256fc374e71977", kill_on_drop: false }`
[INFO] [stdout] e1940c6fbc149f1c872c50475f77b53db749a476699f6a3866256fc374e71977