[INFO] fetching crate smd_macro 0.0.7...
[INFO] checking smd_macro-0.0.7 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate smd_macro 0.0.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate smd_macro 0.0.7 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smd_macro 0.0.7
[INFO] finished tweaking crates.io crate smd_macro 0.0.7
[INFO] tweaked toml for crates.io crate smd_macro 0.0.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59f4891f015313f23b149cd02cd4fbf30aaa1ae3f05ffdbf173123d270566cc4
[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" "59f4891f015313f23b149cd02cd4fbf30aaa1ae3f05ffdbf173123d270566cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59f4891f015313f23b149cd02cd4fbf30aaa1ae3f05ffdbf173123d270566cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f4891f015313f23b149cd02cd4fbf30aaa1ae3f05ffdbf173123d270566cc4", kill_on_drop: false }`
[INFO] [stdout] 59f4891f015313f23b149cd02cd4fbf30aaa1ae3f05ffdbf173123d270566cc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bb9d509a3bc1cba06ecb29b8b5046091b593e448403957a7a1dcc15d39bb7ff
[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" "2bb9d509a3bc1cba06ecb29b8b5046091b593e448403957a7a1dcc15d39bb7ff", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking web-sys v0.3.50
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking smithy_types v0.0.7
[INFO] [stderr]     Checking smd_macro v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:51
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_span, proc_macro_raw_ident, slice_patterns)]
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro_raw_ident` has been stable since 1.47.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_span, proc_macro_raw_ident, slice_patterns)]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parsers/attributes.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     format!(
[INFO] [stdout] 42 | |       "attribute {} is an event name, but was not followed by curly braces",
[INFO] [stdout] 43 | |       string
[INFO] [stdout] 44 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 41 |     
[INFO] [stdout] 42 |       "attribute {} is an event name, but was not followed by curly braces",
[INFO] [stdout] 43 |       string
[INFO] [stdout] 44 |     
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:51
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_span, proc_macro_raw_ident, slice_patterns)]
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro_raw_ident` has been stable since 1.47.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_span, proc_macro_raw_ident, slice_patterns)]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/parsers/attributes.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     format!(
[INFO] [stdout] 42 | |       "attribute {} is an event name, but was not followed by curly braces",
[INFO] [stdout] 43 | |       string
[INFO] [stdout] 44 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 41 |     
[INFO] [stdout] 42 |       "attribute {} is an event name, but was not followed by curly braces",
[INFO] [stdout] 43 |       string
[INFO] [stdout] 44 |     
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.59s
[INFO] running `Command { std: "docker" "inspect" "2bb9d509a3bc1cba06ecb29b8b5046091b593e448403957a7a1dcc15d39bb7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb9d509a3bc1cba06ecb29b8b5046091b593e448403957a7a1dcc15d39bb7ff", kill_on_drop: false }`
[INFO] [stdout] 2bb9d509a3bc1cba06ecb29b8b5046091b593e448403957a7a1dcc15d39bb7ff