[INFO] crate xen 0.0.0-pre1 is already in cache
[INFO] extracting crate xen 0.0.0-pre1 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/xen/0.0.0-pre1
[INFO] extracting crate xen 0.0.0-pre1 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/xen/0.0.0-pre1
[INFO] validating manifest of xen-0.0.0-pre1 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xen-0.0.0-pre1 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xen-0.0.0-pre1
[INFO] finished frobbing xen-0.0.0-pre1
[INFO] frobbed toml for xen-0.0.0-pre1 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/xen/0.0.0-pre1/Cargo.toml
[INFO] started frobbing xen-0.0.0-pre1
[INFO] finished frobbing xen-0.0.0-pre1
[INFO] frobbed toml for xen-0.0.0-pre1 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/xen/0.0.0-pre1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking xen-0.0.0-pre1 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/xen/0.0.0-pre1:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d750b2567d78facff60270b750fe90ebf8a84bac9ff8a2963bda0646ef6df5f0
[INFO] running `"docker" "start" "-a" "d750b2567d78facff60270b750fe90ebf8a84bac9ff8a2963bda0646ef6df5f0"`
[INFO] [stderr]     Checking xen-sys v0.0.0-pre1
[INFO] [stderr]     Checking xen v0.0.0-pre1 (/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 prefixing with an underscore: `_reason`
[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
[INFO] [stderr]   --> src/hypercall/sched_op.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | const SCHEDOP_yield: u64 = 0;
[INFO] [stderr]    |       ^^^^^^^^^^^^^ help: convert the identifier to upper case: `SCHEDOP_YIELD`
[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
[INFO] [stderr]   --> src/hypercall/sched_op.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const SCHEDOP_shutdown: u64 = 2;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `SCHEDOP_SHUTDOWN`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_poll` should have an upper case name
[INFO] [stderr]   --> src/hypercall/sched_op.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SCHEDOP_poll: u64 = 3;
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `SCHEDOP_POLL`
[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 prefixing with an underscore: `_reason`
[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
[INFO] [stderr]   --> src/hypercall/sched_op.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | const SCHEDOP_yield: u64 = 0;
[INFO] [stderr]    |       ^^^^^^^^^^^^^ help: convert the identifier to upper case: `SCHEDOP_YIELD`
[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
[INFO] [stderr]   --> src/hypercall/sched_op.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const SCHEDOP_shutdown: u64 = 2;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `SCHEDOP_SHUTDOWN`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCHEDOP_poll` should have an upper case name
[INFO] [stderr]   --> src/hypercall/sched_op.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const SCHEDOP_poll: u64 = 3;
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `SCHEDOP_POLL`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "d750b2567d78facff60270b750fe90ebf8a84bac9ff8a2963bda0646ef6df5f0"`
[INFO] running `"docker" "rm" "-f" "d750b2567d78facff60270b750fe90ebf8a84bac9ff8a2963bda0646ef6df5f0"`
[INFO] [stdout] d750b2567d78facff60270b750fe90ebf8a84bac9ff8a2963bda0646ef6df5f0