[INFO] fetching crate one-stack-vec 0.5.1... [INFO] extracting crate one-stack-vec 0.5.1 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/one-stack-vec/0.5.1 [INFO] extracting crate one-stack-vec 0.5.1 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/one-stack-vec/0.5.1 [INFO] validating manifest of one-stack-vec-0.5.1 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 one-stack-vec-0.5.1 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 one-stack-vec-0.5.1 [INFO] finished frobbing one-stack-vec-0.5.1 [INFO] frobbed toml for one-stack-vec-0.5.1 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/one-stack-vec/0.5.1/Cargo.toml [INFO] started frobbing one-stack-vec-0.5.1 [INFO] finished frobbing one-stack-vec-0.5.1 [INFO] frobbed toml for one-stack-vec-0.5.1 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/one-stack-vec/0.5.1/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] [stderr] Blocking waiting for file lock on package cache [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] [stderr] Blocking waiting for file lock on package cache [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 one-stack-vec-0.5.1 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/one-stack-vec/0.5.1:/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 30ee1ba531ac6a3378f6e2739de5c7096e536b724fc4037b39b66aac0c522102 [INFO] running `"docker" "start" "-a" "30ee1ba531ac6a3378f6e2739de5c7096e536b724fc4037b39b66aac0c522102"` [INFO] [stderr] Checking one-stack-vec v0.5.1 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:217:17 [INFO] [stderr] | [INFO] [stderr] 217 | let mut tmp_vec = $crate::OneStackVec::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 233 | let item1: OneStackVec = one_stack_vec![]; [INFO] [stderr] | ---------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:217:17 [INFO] [stderr] | [INFO] [stderr] 217 | let mut tmp_vec = $crate::OneStackVec::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 234 | let item2: OneStackVec = one_stack_vec![]; [INFO] [stderr] | ---------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:217:17 [INFO] [stderr] | [INFO] [stderr] 217 | let mut tmp_vec = $crate::OneStackVec::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 238 | let item2 = one_stack_vec![]; [INFO] [stderr] | ---------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:217:17 [INFO] [stderr] | [INFO] [stderr] 217 | let mut tmp_vec = $crate::OneStackVec::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] ... [INFO] [stderr] 262 | let vec: OneStackVec = one_stack_vec![]; [INFO] [stderr] | ---------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.34s [INFO] running `"docker" "inspect" "30ee1ba531ac6a3378f6e2739de5c7096e536b724fc4037b39b66aac0c522102"` [INFO] running `"docker" "rm" "-f" "30ee1ba531ac6a3378f6e2739de5c7096e536b724fc4037b39b66aac0c522102"` [INFO] [stdout] 30ee1ba531ac6a3378f6e2739de5c7096e536b724fc4037b39b66aac0c522102