[INFO] fetching crate enumflags2 0.7.0-preview1...
[INFO] checking enumflags2-0.7.0-preview1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate enumflags2 0.7.0-preview1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate enumflags2 0.7.0-preview1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enumflags2 0.7.0-preview1
[INFO] finished tweaking crates.io crate enumflags2 0.7.0-preview1
[INFO] tweaked toml for crates.io crate enumflags2 0.7.0-preview1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 29dc147f5c6b8abd3e2464cb91c76f821f14fec19d7ee0aafb6e88d24caa92e8
[INFO] running `Command { std: "docker" "start" "-a" "29dc147f5c6b8abd3e2464cb91c76f821f14fec19d7ee0aafb6e88d24caa92e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29dc147f5c6b8abd3e2464cb91c76f821f14fec19d7ee0aafb6e88d24caa92e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29dc147f5c6b8abd3e2464cb91c76f821f14fec19d7ee0aafb6e88d24caa92e8", kill_on_drop: false }`
[INFO] [stdout] 29dc147f5c6b8abd3e2464cb91c76f821f14fec19d7ee0aafb6e88d24caa92e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc9bb5d77dc91477354d3b395c4ce438e51f4829c73859a1e0d8ef67b47bab27
[INFO] running `Command { std: "docker" "start" "-a" "cc9bb5d77dc91477354d3b395c4ce438e51f4829c73859a1e0d8ef67b47bab27", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling enumflags2_derive v0.7.0-preview1
[INFO] [stderr]     Checking enumflags2 v0.7.0-preview1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `criterion`
[INFO] [stdout]  --> benches/from_iterator.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared type or module `criterion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `criterion_group`
[INFO] [stdout]   --> benches/from_iterator.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | criterion_group!(benches, iterators);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `criterion_main`
[INFO] [stdout]   --> benches/from_iterator.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | criterion_main!(benches);
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enumflags2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "cc9bb5d77dc91477354d3b395c4ce438e51f4829c73859a1e0d8ef67b47bab27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9bb5d77dc91477354d3b395c4ce438e51f4829c73859a1e0d8ef67b47bab27", kill_on_drop: false }`
[INFO] [stdout] cc9bb5d77dc91477354d3b395c4ce438e51f4829c73859a1e0d8ef67b47bab27
