[INFO] fetching crate mpmc-scheduler 0.3.1...
[INFO] extracting crate mpmc-scheduler 0.3.1 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/mpmc-scheduler/0.3.1
[INFO] extracting crate mpmc-scheduler 0.3.1 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/mpmc-scheduler/0.3.1
[INFO] validating manifest of mpmc-scheduler-0.3.1 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mpmc-scheduler-0.3.1 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mpmc-scheduler-0.3.1
[INFO] finished frobbing mpmc-scheduler-0.3.1
[INFO] frobbed toml for mpmc-scheduler-0.3.1 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/mpmc-scheduler/0.3.1/Cargo.toml
[INFO] started frobbing mpmc-scheduler-0.3.1
[INFO] finished frobbing mpmc-scheduler-0.3.1
[INFO] frobbed toml for mpmc-scheduler-0.3.1 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/mpmc-scheduler/0.3.1/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mpmc-scheduler-0.3.1 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/mpmc-scheduler/0.3.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 433d3a1e570fcccb1fac545e3b52007fcd25530b4f1f7464913f5ae725857afc
[INFO] running `"docker" "start" "-a" "433d3a1e570fcccb1fac545e3b52007fcd25530b4f1f7464913f5ae725857afc"`
[INFO] [stderr]     Checking hazard v0.3.1
[INFO] [stderr]     Checking atomic-option v0.1.2
[INFO] [stderr]     Checking bus v2.2.2
[INFO] [stderr]     Checking npnc v0.2.1
[INFO] [stderr]     Checking mpmc-scheduler v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/lib.rs:522:24
[INFO] [stderr]     |
[INFO] [stderr] 522 |             Some(move |v| {
[INFO] [stderr]     |                        ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:644:21
[INFO] [stderr]     |
[INFO] [stderr] 644 |                 for i in start..end {
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `i32` should have an upper camel case name
[INFO] [stderr]   --> examples/dynamic_dispatch.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     i32(i32),
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `I32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "433d3a1e570fcccb1fac545e3b52007fcd25530b4f1f7464913f5ae725857afc"`
[INFO] running `"docker" "rm" "-f" "433d3a1e570fcccb1fac545e3b52007fcd25530b4f1f7464913f5ae725857afc"`
[INFO] [stdout] 433d3a1e570fcccb1fac545e3b52007fcd25530b4f1f7464913f5ae725857afc