[INFO] crate ctflag_derive 0.1.2 is already in cache
[INFO] checking ctflag_derive-0.1.2 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate ctflag_derive 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ctflag_derive 0.1.2 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ctflag_derive 0.1.2
[INFO] finished tweaking crates.io crate ctflag_derive 0.1.2
[INFO] tweaked toml for crates.io crate ctflag_derive 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ffbf151a0a72f8584266a3cd580eec80156e041ccdd8044157a6cbae88fecb75
[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" "ffbf151a0a72f8584266a3cd580eec80156e041ccdd8044157a6cbae88fecb75"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ctflag_derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `ToTokens` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:513:21
[INFO] [stderr]     |
[INFO] [stderr] 22  | use quote::{quote, quote_spanned, ToTokens};
[INFO] [stderr]     |                                   -------- the item `ToTokens` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 513 |                 use quote::ToTokens;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ToTokens` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:513:21
[INFO] [stderr]     |
[INFO] [stderr] 22  | use quote::{quote, quote_spanned, ToTokens};
[INFO] [stderr]     |                                   -------- the item `ToTokens` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 513 |                 use quote::ToTokens;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "ffbf151a0a72f8584266a3cd580eec80156e041ccdd8044157a6cbae88fecb75"`
[INFO] running `"docker" "rm" "-f" "ffbf151a0a72f8584266a3cd580eec80156e041ccdd8044157a6cbae88fecb75"`
[INFO] [stdout] ffbf151a0a72f8584266a3cd580eec80156e041ccdd8044157a6cbae88fecb75