[INFO] crate serde_closure 0.2.10 is already in cache [INFO] checking serde_closure-0.2.10 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] extracting crate serde_closure 0.2.10 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate serde_closure 0.2.10 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate serde_closure 0.2.10 [INFO] finished tweaking crates.io crate serde_closure 0.2.10 [INFO] tweaked toml for crates.io crate serde_closure 0.2.10 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 29cb8cf3c4af26eae78f75d7218e23b49e82f72ee81c673546eec6a6e289a1a0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "29cb8cf3c4af26eae78f75d7218e23b49e82f72ee81c673546eec6a6e289a1a0"` [INFO] [stderr] Compiling proc-macro-hack v0.5.15 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling serde_closure_derive v0.2.10 [INFO] [stderr] Checking bincode v1.2.1 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking serde_closure v0.2.10 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> tests/test.rs:376:25 [INFO] [stderr] | [INFO] [stderr] 376 | let closure = FnOnce!(|x: &str| "test"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> tests/test.rs:467:7 [INFO] [stderr] | [INFO] [stderr] 467 | let a = &STATIC; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:100:18 [INFO] [stderr] | [INFO] [stderr] 100 | let c = FnOnce!(move || -> String { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | _____________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 101 | | for task in tasks { [INFO] [stderr] | |_________________________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:387:24 [INFO] [stderr] | [INFO] [stderr] 387 | let closure = FnOnce!(move || { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | ___________________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 388 | | (b)(); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:387:24 [INFO] [stderr] | [INFO] [stderr] 387 | let closure = FnOnce!(move || { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | ___________________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 388 | | (b)(); [INFO] [stderr] 389 | | // b(); [INFO] [stderr] 390 | | // (b::<>)(); [INFO] [stderr] 391 | | c; [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:406:24 [INFO] [stderr] | [INFO] [stderr] 406 | let closure = FnOnce!(move || { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | ___________________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 407 | | (b)(); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:417:24 [INFO] [stderr] | [INFO] [stderr] 417 | let closure = FnOnce!(move || { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | ___________________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 418 | | // (b)(); [INFO] [stderr] 419 | | // b(); [INFO] [stderr] 420 | | // (b::<>)(); [INFO] [stderr] 421 | | c; [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:450:11 [INFO] [stderr] | [INFO] [stderr] 450 | FnOnce!(move || { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | _________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 451 | | let _ = x; [INFO] [stderr] | |_____________________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:456:11 [INFO] [stderr] | [INFO] [stderr] 456 | FnOnce!(move || { [INFO] [stderr] | ^---- [INFO] [stderr] | | [INFO] [stderr] | _________________help: remove this `mut` [INFO] [stderr] | | [INFO] [stderr] 457 | | let _ = x; [INFO] [stderr] | |_____________________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/test.rs:477:28 [INFO] [stderr] | [INFO] [stderr] 477 | ::serde_closure::FnOnce!(|| a); [INFO] [stderr] | ---^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:387:24 [INFO] [stderr] | [INFO] [stderr] 387 | let closure = FnOnce!(move || { [INFO] [stderr] | ___________________________^ [INFO] [stderr] 388 | | (b)(); [INFO] [stderr] 389 | | // b(); [INFO] [stderr] 390 | | // (b::<>)(); [INFO] [stderr] 391 | | c; [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(path_statements)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:393:3 [INFO] [stderr] | [INFO] [stderr] 393 | size_of::<()>; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:417:24 [INFO] [stderr] | [INFO] [stderr] 417 | let closure = FnOnce!(move || { [INFO] [stderr] | ___________________________^ [INFO] [stderr] 418 | | // (b)(); [INFO] [stderr] 419 | | // b(); [INFO] [stderr] 420 | | // (b::<>)(); [INFO] [stderr] 421 | | c; [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:423:3 [INFO] [stderr] | [INFO] [stderr] 423 | size_of::<()>; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:426:3 [INFO] [stderr] | [INFO] [stderr] 426 | capturing::<>; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:432:3 [INFO] [stderr] | [INFO] [stderr] 432 | Foo; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> tests/test.rs:433:3 [INFO] [stderr] | [INFO] [stderr] 433 | foo::<>; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 17 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 51.25s [INFO] running `"docker" "inspect" "29cb8cf3c4af26eae78f75d7218e23b49e82f72ee81c673546eec6a6e289a1a0"` [INFO] running `"docker" "rm" "-f" "29cb8cf3c4af26eae78f75d7218e23b49e82f72ee81c673546eec6a6e289a1a0"` [INFO] [stdout] 29cb8cf3c4af26eae78f75d7218e23b49e82f72ee81c673546eec6a6e289a1a0