[INFO] updating cached repository https://github.com/rust-lang-nursery/rust-bindgen
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stderr] warning: refname 'HEAD' is ambiguous.
[INFO] [stdout] f568d095774bd5642fe8404e13268e43bd47327a
[INFO] checking rust-lang-nursery/rust-bindgen against try#3ae4c050387df9f7fbb379ee90ce8bf05e566870 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frust-bindgen" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/rust-lang-nursery/rust-bindgen on toolchain 3ae4c050387df9f7fbb379ee90ce8bf05e566870
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rust-lang-nursery/rust-bindgen
[INFO] finished tweaking git repo https://github.com/rust-lang-nursery/rust-bindgen
[INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/rust-bindgen written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang-nursery/rust-bindgen already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 14b60f720fc6dcdbac926d9293dcda64305206700a1378a048ea021f645012ce
[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" "14b60f720fc6dcdbac926d9293dcda64305206700a1378a048ea021f645012ce"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling bindgen v0.53.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling clang-sys v0.29.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking which v3.0.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.7.0
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking cexpr v0.4.0
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]     --> src/codegen/mod.rs:3716:39
[INFO] [stderr]      |
[INFO] [stderr] 3716 |             self.methods().iter().map({ |m| m.rust_name() }).collect();
[INFO] [stderr]      |                                       ^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]     --> src/codegen/mod.rs:3716:39
[INFO] [stderr]      |
[INFO] [stderr] 3716 |             self.methods().iter().map({ |m| m.rust_name() }).collect();
[INFO] [stderr]      |                                       ^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.57s
[INFO] running `"docker" "inspect" "14b60f720fc6dcdbac926d9293dcda64305206700a1378a048ea021f645012ce"`
[INFO] running `"docker" "rm" "-f" "14b60f720fc6dcdbac926d9293dcda64305206700a1378a048ea021f645012ce"`
[INFO] [stdout] 14b60f720fc6dcdbac926d9293dcda64305206700a1378a048ea021f645012ce