[INFO] fetching crate ether-dream 0.2.2...
[INFO] checking ether-dream-0.2.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate ether-dream 0.2.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate ether-dream 0.2.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ether-dream 0.2.2
[INFO] finished tweaking crates.io crate ether-dream 0.2.2
[INFO] tweaked toml for crates.io crate ether-dream 0.2.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3af1f5386bcd2771ffbe0c6fe29581c21ade08aba4e28edf1c7ead1e40334dbf
[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" "3af1f5386bcd2771ffbe0c6fe29581c21ade08aba4e28edf1c7ead1e40334dbf"`
[INFO] [stderr]     Checking ether-dream v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dac/stream.rs:397:32
[INFO] [stderr]     |
[INFO] [stderr] 397 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dac/stream.rs:397:32
[INFO] [stderr]     |
[INFO] [stderr] 397 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `timeout`
[INFO] [stderr]   --> src/dac/stream.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     timeout: Option<time::Duration>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `timeout`
[INFO] [stderr]   --> src/dac/stream.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     timeout: Option<time::Duration>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> examples/dac_stream.rs:47:53
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let n_points = points_to_generate(stream.dac());;
[INFO] [stderr]    |                                                     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> examples/dac_stream.rs:62:57
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let n_points = points_to_generate(stream.dac());;
[INFO] [stderr]    |                                                         ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `"docker" "inspect" "3af1f5386bcd2771ffbe0c6fe29581c21ade08aba4e28edf1c7ead1e40334dbf"`
[INFO] running `"docker" "rm" "-f" "3af1f5386bcd2771ffbe0c6fe29581c21ade08aba4e28edf1c7ead1e40334dbf"`
[INFO] [stdout] 3af1f5386bcd2771ffbe0c6fe29581c21ade08aba4e28edf1c7ead1e40334dbf