[INFO] fetching crate futures-await-async-macro 0.1.4...
[INFO] checking futures-await-async-macro-0.1.4 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate futures-await-async-macro 0.1.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate futures-await-async-macro 0.1.4 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-await-async-macro 0.1.4
[INFO] finished tweaking crates.io crate futures-await-async-macro 0.1.4
[INFO] tweaked toml for crates.io crate futures-await-async-macro 0.1.4 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7cecfbd706e38dbfcae1bee903e9f6011e41a134a03a4efd0d2dfad83f4bc4a5
[INFO] running `Command { std: "docker" "start" "-a" "7cecfbd706e38dbfcae1bee903e9f6011e41a134a03a4efd0d2dfad83f4bc4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cecfbd706e38dbfcae1bee903e9f6011e41a134a03a4efd0d2dfad83f4bc4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cecfbd706e38dbfcae1bee903e9f6011e41a134a03a4efd0d2dfad83f4bc4a5", kill_on_drop: false }`
[INFO] [stdout] 7cecfbd706e38dbfcae1bee903e9f6011e41a134a03a4efd0d2dfad83f4bc4a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07959b0f72e45f4a6f54461003ac83fd688b469b868e5e3a5e48463f72c13567
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07959b0f72e45f4a6f54461003ac83fd688b469b868e5e3a5e48463f72c13567", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking syn v0.14.9
[INFO] [stderr]     Checking futures-await-async-macro v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:466:24
[INFO] [stdout]     |
[INFO] [stdout] 466 | fn first_last(tokens: &ToTokens) -> (Span, Span) {
[INFO] [stdout]     |                        ^^^^^^^^ help: use `dyn`: `dyn ToTokens`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:494:59
[INFO] [stdout]     |
[INFO] [stdout] 494 | fn replace_bang(input: proc_macro2::TokenStream, tokens: &ToTokens) -> proc_macro2::TokenStream {
[INFO] [stdout]     |                                                           ^^^^^^^^ help: use `dyn`: `dyn ToTokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:507:19
[INFO] [stdout]     |
[INFO] [stdout] 507 |     replacements: &[&ToTokens],
[INFO] [stdout]     |                      ^^^^^^^^ help: use `dyn`: `dyn ToTokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:175:19
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let mut result = Tokens::empty();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |     let mut gen_body = Tokens::empty();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut body = Tokens::empty();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:466:24
[INFO] [stdout]     |
[INFO] [stdout] 466 | fn first_last(tokens: &ToTokens) -> (Span, Span) {
[INFO] [stdout]     |                        ^^^^^^^^ help: use `dyn`: `dyn ToTokens`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:494:59
[INFO] [stdout]     |
[INFO] [stdout] 494 | fn replace_bang(input: proc_macro2::TokenStream, tokens: &ToTokens) -> proc_macro2::TokenStream {
[INFO] [stdout]     |                                                           ^^^^^^^^ help: use `dyn`: `dyn ToTokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:507:19
[INFO] [stdout]     |
[INFO] [stdout] 507 |     replacements: &[&ToTokens],
[INFO] [stdout]     |                      ^^^^^^^^ help: use `dyn`: `dyn ToTokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:467:18
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let mut spans = Tokens::empty();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:495:23
[INFO] [stdout]     |
[INFO] [stdout] 495 |     let mut new_tokens = Tokens::empty();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:510:23
[INFO] [stdout]     |
[INFO] [stdout] 510 |     let mut new_tokens = Tokens::empty();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(proc_macro)]
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:175:19
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let mut result = Tokens::empty();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |     let mut gen_body = Tokens::empty();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut body = Tokens::empty();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:467:18
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let mut spans = Tokens::empty();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:495:23
[INFO] [stdout]     |
[INFO] [stdout] 495 |     let mut new_tokens = Tokens::empty();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `proc_macro2::TokenStream::empty`: please use TokenStream::new
[INFO] [stdout]    --> src/lib.rs:510:23
[INFO] [stdout]     |
[INFO] [stdout] 510 |     let mut new_tokens = Tokens::empty();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(proc_macro)]
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "07959b0f72e45f4a6f54461003ac83fd688b469b868e5e3a5e48463f72c13567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07959b0f72e45f4a6f54461003ac83fd688b469b868e5e3a5e48463f72c13567", kill_on_drop: false }`
[INFO] [stdout] 07959b0f72e45f4a6f54461003ac83fd688b469b868e5e3a5e48463f72c13567