[INFO] fetching crate ctflag_derive 0.1.2...
[INFO] checking ctflag_derive-0.1.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate ctflag_derive 0.1.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ctflag_derive 0.1.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7bc3956c963f9335a8796dd169c03f846a558cb3ed05d94c3a5b3075df164c38
[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" "7bc3956c963f9335a8796dd169c03f846a558cb3ed05d94c3a5b3075df164c38"`
[INFO] [stderr]     Checking syn v0.15.44
[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]     Finished dev [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `"docker" "inspect" "7bc3956c963f9335a8796dd169c03f846a558cb3ed05d94c3a5b3075df164c38"`
[INFO] running `"docker" "rm" "-f" "7bc3956c963f9335a8796dd169c03f846a558cb3ed05d94c3a5b3075df164c38"`
[INFO] [stdout] 7bc3956c963f9335a8796dd169c03f846a558cb3ed05d94c3a5b3075df164c38