[INFO] crate voluntary-servitude 4.0.8 is already in cache
[INFO] extracting crate voluntary-servitude 4.0.8 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/voluntary-servitude/4.0.8
[INFO] extracting crate voluntary-servitude 4.0.8 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/voluntary-servitude/4.0.8
[INFO] validating manifest of voluntary-servitude-4.0.8 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 voluntary-servitude-4.0.8 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 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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/voluntary-servitude/4.0.8/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 voluntary-servitude-4.0.8 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/voluntary-servitude/4.0.8:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5232d59c92348aa54cc155f43c74876e5d62190f86d7d595fb05f8d92b1b67c9
[INFO] running `"docker" "start" "-a" "5232d59c92348aa54cc155f43c74876e5d62190f86d7d595fb05f8d92b1b67c9"`
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking voluntary-servitude v4.0.8 (/opt/crater/workdir)
[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 8.14s
[INFO] running `"docker" "inspect" "5232d59c92348aa54cc155f43c74876e5d62190f86d7d595fb05f8d92b1b67c9"`
[INFO] running `"docker" "rm" "-f" "5232d59c92348aa54cc155f43c74876e5d62190f86d7d595fb05f8d92b1b67c9"`
[INFO] [stdout] 5232d59c92348aa54cc155f43c74876e5d62190f86d7d595fb05f8d92b1b67c9