[INFO] fetching crate voluntary-servitude 4.0.8...
[INFO] extracting crate voluntary-servitude 4.0.8 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/voluntary-servitude/4.0.8
[INFO] extracting crate voluntary-servitude 4.0.8 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/voluntary-servitude/4.0.8
[INFO] validating manifest of voluntary-servitude-4.0.8 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 voluntary-servitude-4.0.8 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 voluntary-servitude-4.0.8
[INFO] finished frobbing voluntary-servitude-4.0.8
[INFO] frobbed toml for voluntary-servitude-4.0.8 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/voluntary-servitude/4.0.8/Cargo.toml
[INFO] started frobbing voluntary-servitude-4.0.8
[INFO] finished frobbing voluntary-servitude-4.0.8
[INFO] frobbed toml for voluntary-servitude-4.0.8 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/voluntary-servitude/4.0.8/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 voluntary-servitude-4.0.8 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/voluntary-servitude/4.0.8:/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] 23ecb74686f562dfed27d836bcf691132a9ff79200624982840b59db6b79ce0a
[INFO] running `"docker" "start" "-a" "23ecb74686f562dfed27d836bcf691132a9ff79200624982840b59db6b79ce0a"`
[INFO] [stderr]     Checking bstr v0.2.2
[INFO] [stderr]     Checking regex v1.1.9
[INFO] [stderr]     Checking voluntary-servitude v4.0.8 (/opt/crater/workdir)
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr] warning: function is never used: `vec_new`
[INFO] [stderr]   --> benches/vs_each.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn vec_new(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_append`
[INFO] [stderr]   --> benches/vs_each.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn vec_append(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_iter`
[INFO] [stderr]   --> benches/vs_each.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn vec_iter(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_len`
[INFO] [stderr]   --> benches/vs_each.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn vec_len(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_is_empty`
[INFO] [stderr]   --> benches/vs_each.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn vec_is_empty(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_clear`
[INFO] [stderr]   --> benches/vs_each.rs:78:1
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn vec_clear(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_extend`
[INFO] [stderr]   --> benches/vs_each.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn vec_extend(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_from_iter`
[INFO] [stderr]   --> benches/vs_each.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn vec_from_iter(c: &mut Criterion) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.52s
[INFO] running `"docker" "inspect" "23ecb74686f562dfed27d836bcf691132a9ff79200624982840b59db6b79ce0a"`
[INFO] running `"docker" "rm" "-f" "23ecb74686f562dfed27d836bcf691132a9ff79200624982840b59db6b79ce0a"`
[INFO] [stdout] 23ecb74686f562dfed27d836bcf691132a9ff79200624982840b59db6b79ce0a