[INFO] crate slab 0.4.1 is already in cache
[INFO] extracting crate slab 0.4.1 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/slab/0.4.1
[INFO] extracting crate slab 0.4.1 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/slab/0.4.1
[INFO] validating manifest of slab-0.4.1 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of slab-0.4.1 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing slab-0.4.1
[INFO] finished frobbing slab-0.4.1
[INFO] frobbed toml for slab-0.4.1 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/slab/0.4.1/Cargo.toml
[INFO] started frobbing slab-0.4.1
[INFO] finished frobbing slab-0.4.1
[INFO] frobbed toml for slab-0.4.1 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/slab/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing slab-0.4.1 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/slab/0.4.1:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] ae2a8655f15ddb86d92cfed5805ab9cb1e84725bcf3b41e04b63ea4f2aa9bcf4
[INFO] running `"docker" "start" "-a" "ae2a8655f15ddb86d92cfed5805ab9cb1e84725bcf3b41e04b63ea4f2aa9bcf4"`
[INFO] [stderr]    Compiling slab v0.4.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "ae2a8655f15ddb86d92cfed5805ab9cb1e84725bcf3b41e04b63ea4f2aa9bcf4"`
[INFO] running `"docker" "rm" "-f" "ae2a8655f15ddb86d92cfed5805ab9cb1e84725bcf3b41e04b63ea4f2aa9bcf4"`
[INFO] [stdout] ae2a8655f15ddb86d92cfed5805ab9cb1e84725bcf3b41e04b63ea4f2aa9bcf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/slab/0.4.1:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] dfaa855c658d0844600e1b62b09a7b0f7ef02b31860d8ad2be87af66db5ab1f6
[INFO] running `"docker" "start" "-a" "dfaa855c658d0844600e1b62b09a7b0f7ef02b31860d8ad2be87af66db5ab1f6"`
[INFO] [stderr]    Compiling slab v0.4.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "dfaa855c658d0844600e1b62b09a7b0f7ef02b31860d8ad2be87af66db5ab1f6"`
[INFO] running `"docker" "rm" "-f" "dfaa855c658d0844600e1b62b09a7b0f7ef02b31860d8ad2be87af66db5ab1f6"`
[INFO] [stdout] dfaa855c658d0844600e1b62b09a7b0f7ef02b31860d8ad2be87af66db5ab1f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/slab/0.4.1:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 4407966bc0b4524d37e13ba5d50f153e40c588dd54374c09556fe52ec48bb3d7
[INFO] running `"docker" "start" "-a" "4407966bc0b4524d37e13ba5d50f153e40c588dd54374c09556fe52ec48bb3d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slab-fc44a5cc8c76b81d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slab-130e003b05afc079
[INFO] [stdout] running 15 tests
[INFO] [stdout] test insert_get_remove_many ... ok
[INFO] [stdout] test insert_get_many ... ok
[INFO] [stdout] test insert_get_remove_one ... ok
[INFO] [stdout] test insert_with_vacant_entry ... ok
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test clear ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test slab_get_mut ... ok
[INFO] [stdout] test reserve_does_not_allocate_if_available ... ok
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test double_remove_panics ... ok
[INFO] [stdout] test invalid_get_panics ... ok
[INFO] [stdout] test invalid_remove_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slab
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 234) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 688) ... ok
[INFO] [stdout] test src/lib.rs -  (line 59) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 359) ... ok
[INFO] [stdout] test src/lib.rs -  (line 21) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 502) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 480) ... ok
[INFO] [stdout] test src/lib.rs -  (line 38) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 526) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 398) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 549) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::new (line 187) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 580) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter (line 419) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 380) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 450) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve (line 262) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 655) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve_exact (line 296) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 320) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 718) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 336) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 207) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_entry (line 602) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a, T>::insert (line 825) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 140) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a, T>::key (line 855) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4407966bc0b4524d37e13ba5d50f153e40c588dd54374c09556fe52ec48bb3d7"`
[INFO] running `"docker" "rm" "-f" "4407966bc0b4524d37e13ba5d50f153e40c588dd54374c09556fe52ec48bb3d7"`
[INFO] [stdout] 4407966bc0b4524d37e13ba5d50f153e40c588dd54374c09556fe52ec48bb3d7