[INFO] fetching crate msiz_rustc-ap-rustc_macros 3.0.0... [INFO] checking msiz_rustc-ap-rustc_macros-3.0.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate msiz_rustc-ap-rustc_macros 3.0.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate msiz_rustc-ap-rustc_macros 3.0.0 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 msiz_rustc-ap-rustc_macros 3.0.0 [INFO] finished tweaking crates.io crate msiz_rustc-ap-rustc_macros 3.0.0 [INFO] tweaked toml for crates.io crate msiz_rustc-ap-rustc_macros 3.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 7 packages to latest compatible versions [INFO] [stderr] Adding itertools v0.8.2 (available: v0.13.0) [INFO] [stderr] Adding proc-macro2 v0.4.30 (available: v1.0.86) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.37) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.79) [INFO] [stderr] Adding synstructure v0.10.2 (available: v0.13.1) [INFO] [stderr] Adding unicode-xid v0.1.0 (available: v0.2.6) [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] [stderr] Blocking waiting for file lock on package cache [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fdd3fb54462dc4ee63e36c876a56d2644a3e41ae83f0cbdba90ac98daf51133c [INFO] running `Command { std: "docker" "start" "-a" "fdd3fb54462dc4ee63e36c876a56d2644a3e41ae83f0cbdba90ac98daf51133c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fdd3fb54462dc4ee63e36c876a56d2644a3e41ae83f0cbdba90ac98daf51133c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fdd3fb54462dc4ee63e36c876a56d2644a3e41ae83f0cbdba90ac98daf51133c", kill_on_drop: false }` [INFO] [stdout] fdd3fb54462dc4ee63e36c876a56d2644a3e41ae83f0cbdba90ac98daf51133c [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 -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] 5cc2f9378557ea13f8d9f72f4e15a51e702d520a285ffa917c2fa7dd887848e6 [INFO] running `Command { std: "docker" "start" "-a" "5cc2f9378557ea13f8d9f72f4e15a51e702d520a285ffa917c2fa7dd887848e6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Checking synstructure v0.10.2 [INFO] [stderr] Checking msiz_rustc-ap-rustc_macros v3.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/query.rs:477:45 [INFO] [stdout] | [INFO] [stdout] 477 | for e in attributes.into_iter().intersperse(quote! {,}) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/query.rs:477:45 [INFO] [stdout] | [INFO] [stdout] 477 | for e in attributes.into_iter().intersperse(quote! {,}) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 + #![feature(iter_intersperse)] [INFO] [stdout] | [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 4.50s [INFO] running `Command { std: "docker" "inspect" "5cc2f9378557ea13f8d9f72f4e15a51e702d520a285ffa917c2fa7dd887848e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cc2f9378557ea13f8d9f72f4e15a51e702d520a285ffa917c2fa7dd887848e6", kill_on_drop: false }` [INFO] [stdout] 5cc2f9378557ea13f8d9f72f4e15a51e702d520a285ffa917c2fa7dd887848e6