[INFO] crate xen 0.0.0-pre is already in cache
[INFO] extracting crate xen 0.0.0-pre into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/xen/0.0.0-pre
[INFO] extracting crate xen 0.0.0-pre into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/xen/0.0.0-pre
[INFO] validating manifest of xen-0.0.0-pre on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xen-0.0.0-pre on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xen-0.0.0-pre
[INFO] finished frobbing xen-0.0.0-pre
[INFO] frobbed toml for xen-0.0.0-pre written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/xen/0.0.0-pre/Cargo.toml
[INFO] started frobbing xen-0.0.0-pre
[INFO] finished frobbing xen-0.0.0-pre
[INFO] frobbed toml for xen-0.0.0-pre written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/xen/0.0.0-pre/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking xen-0.0.0-pre against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/xen/0.0.0-pre:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7311f41793763bbeade6636c715fc7473203d7c9f20ea1d02847f85d3d0acaed
[INFO] running `"docker" "start" "-a" "7311f41793763bbeade6636c715fc7473203d7c9f20ea1d02847f85d3d0acaed"`
[INFO] [stderr]     Checking xen-sys v0.0.0-pre
[INFO] [stderr]     Checking xen v0.0.0-pre (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn shutdown(reason: u32) {
[INFO] [stderr]    |                 ^^^^^^ help: consider using `_reason` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCHEDOP_poll`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SCHEDOP_poll: u64 = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_yield` should have an upper case name such as `SCHEDOP_YIELD`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const SCHEDOP_yield: u64 = 0;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_shutdown` should have an upper case name such as `SCHEDOP_SHUTDOWN`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const SCHEDOP_shutdown: u64 = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_poll` should have an upper case name such as `SCHEDOP_POLL`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SCHEDOP_poll: u64 = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reason`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn shutdown(reason: u32) {
[INFO] [stderr]    |                 ^^^^^^ help: consider using `_reason` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCHEDOP_poll`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SCHEDOP_poll: u64 = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_yield` should have an upper case name such as `SCHEDOP_YIELD`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const SCHEDOP_yield: u64 = 0;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_shutdown` should have an upper case name such as `SCHEDOP_SHUTDOWN`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const SCHEDOP_shutdown: u64 = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_poll` should have an upper case name such as `SCHEDOP_POLL`
[INFO] [stderr]   --> src/hypercall/sched_op.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SCHEDOP_poll: u64 = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "7311f41793763bbeade6636c715fc7473203d7c9f20ea1d02847f85d3d0acaed"`
[INFO] running `"docker" "rm" "-f" "7311f41793763bbeade6636c715fc7473203d7c9f20ea1d02847f85d3d0acaed"`
[INFO] [stdout] 7311f41793763bbeade6636c715fc7473203d7c9f20ea1d02847f85d3d0acaed