[INFO] crate pop-trait 0.2.1 is already in cache
[INFO] testing pop-trait-0.2.1 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate pop-trait 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pop-trait 0.2.1 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pop-trait 0.2.1
[INFO] finished tweaking crates.io crate pop-trait 0.2.1
[INFO] tweaked toml for crates.io crate pop-trait 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 382dc8564d3f556d7c5768f1465311a780d5728584c8c8818b85fd72f7b94b86
[INFO] running `"docker" "start" "-a" "382dc8564d3f556d7c5768f1465311a780d5728584c8c8818b85fd72f7b94b86"`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling linked-list v0.0.3
[INFO] [stderr]    Compiling compare v0.0.6
[INFO] [stderr]    Compiling enum-set v0.0.8
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bit-vec v0.6.1
[INFO] [stderr]    Compiling linear-map v0.0.4
[INFO] [stderr]    Compiling interval-heap v0.0.5
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling traverse v0.0.12
[INFO] [stderr]    Compiling blist v0.0.4
[INFO] [stderr]    Compiling len-trait v0.2.6
[INFO] [stderr]    Compiling pop-trait v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.67s
[INFO] running `"docker" "inspect" "382dc8564d3f556d7c5768f1465311a780d5728584c8c8818b85fd72f7b94b86"`
[INFO] running `"docker" "rm" "-f" "382dc8564d3f556d7c5768f1465311a780d5728584c8c8818b85fd72f7b94b86"`
[INFO] [stdout] 382dc8564d3f556d7c5768f1465311a780d5728584c8c8818b85fd72f7b94b86
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 116a6f7d17f3adb2324613a71433aafb8ff1a91a397ad6a7541e758a992bc33e
[INFO] running `"docker" "start" "-a" "116a6f7d17f3adb2324613a71433aafb8ff1a91a397ad6a7541e758a992bc33e"`
[INFO] [stderr]    Compiling pop-trait v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `clippy`
[INFO] [stderr]  --> src/lib.rs:2:26
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg_attr(test, plugin(clippy))]
[INFO] [stderr]   |                          ^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `pop-trait`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "116a6f7d17f3adb2324613a71433aafb8ff1a91a397ad6a7541e758a992bc33e"`
[INFO] running `"docker" "rm" "-f" "116a6f7d17f3adb2324613a71433aafb8ff1a91a397ad6a7541e758a992bc33e"`
[INFO] [stdout] 116a6f7d17f3adb2324613a71433aafb8ff1a91a397ad6a7541e758a992bc33e