[INFO] crate corollary-support 0.2.0 is already in cache
[INFO] extracting crate corollary-support 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/corollary-support/0.2.0
[INFO] extracting crate corollary-support 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corollary-support/0.2.0
[INFO] validating manifest of corollary-support-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of corollary-support-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing corollary-support-0.2.0
[INFO] finished frobbing corollary-support-0.2.0
[INFO] frobbed toml for corollary-support-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/corollary-support/0.2.0/Cargo.toml
[INFO] started frobbing corollary-support-0.2.0
[INFO] finished frobbing corollary-support-0.2.0
[INFO] frobbed toml for corollary-support-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corollary-support/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing corollary-support-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corollary-support/0.2.0:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c9cccf80dfc0aee0e88bf5c19d5b742ab0c5e1f07e59c4e5f1edd55a0ff7dfb7
[INFO] running `"docker" "start" "-a" "c9cccf80dfc0aee0e88bf5c19d5b742ab0c5e1f07e59c4e5f1edd55a0ff7dfb7"`
[INFO] [stderr]    Compiling corollary-support v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:553:26
[INFO] [stderr]     |
[INFO] [stderr] 553 | impl<A> fmt::Display for ReadS<A> {
[INFO] [stderr]     |                          ^^^^^^^^ help: use `dyn`: `dyn ReadS<A>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `idx`
[INFO] [stderr]    --> src/lib.rs:861:5
[INFO] [stderr]     |
[INFO] [stderr] 861 |     idx: Vec<T>,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `inner`
[INFO] [stderr]    --> src/lib.rs:862:5
[INFO] [stderr]     |
[INFO] [stderr] 862 |     inner: Vec<U>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "c9cccf80dfc0aee0e88bf5c19d5b742ab0c5e1f07e59c4e5f1edd55a0ff7dfb7"`
[INFO] running `"docker" "rm" "-f" "c9cccf80dfc0aee0e88bf5c19d5b742ab0c5e1f07e59c4e5f1edd55a0ff7dfb7"`
[INFO] [stdout] c9cccf80dfc0aee0e88bf5c19d5b742ab0c5e1f07e59c4e5f1edd55a0ff7dfb7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corollary-support/0.2.0:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ed8a52131c529fd55fa88a56819cce74f4c01ab6eac39c2c50e8f300bdd12df6
[INFO] running `"docker" "start" "-a" "ed8a52131c529fd55fa88a56819cce74f4c01ab6eac39c2c50e8f300bdd12df6"`
[INFO] [stderr]    Compiling corollary-support v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:553:26
[INFO] [stderr]     |
[INFO] [stderr] 553 | impl<A> fmt::Display for ReadS<A> {
[INFO] [stderr]     |                          ^^^^^^^^ help: use `dyn`: `dyn ReadS<A>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `idx`
[INFO] [stderr]    --> src/lib.rs:861:5
[INFO] [stderr]     |
[INFO] [stderr] 861 |     idx: Vec<T>,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `inner`
[INFO] [stderr]    --> src/lib.rs:862:5
[INFO] [stderr]     |
[INFO] [stderr] 862 |     inner: Vec<U>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "ed8a52131c529fd55fa88a56819cce74f4c01ab6eac39c2c50e8f300bdd12df6"`
[INFO] running `"docker" "rm" "-f" "ed8a52131c529fd55fa88a56819cce74f4c01ab6eac39c2c50e8f300bdd12df6"`
[INFO] [stdout] ed8a52131c529fd55fa88a56819cce74f4c01ab6eac39c2c50e8f300bdd12df6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corollary-support/0.2.0:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 99ccf8a74afa6e3a0017202fd5f9cf395119816c2b2ba8faa37e5c89171970cd
[INFO] running `"docker" "start" "-a" "99ccf8a74afa6e3a0017202fd5f9cf395119816c2b2ba8faa37e5c89171970cd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/corollary_support-bccf1cc233150a5c
[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] [stderr]    Doc-tests corollary-support
[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] running `"docker" "inspect" "99ccf8a74afa6e3a0017202fd5f9cf395119816c2b2ba8faa37e5c89171970cd"`
[INFO] running `"docker" "rm" "-f" "99ccf8a74afa6e3a0017202fd5f9cf395119816c2b2ba8faa37e5c89171970cd"`
[INFO] [stdout] 99ccf8a74afa6e3a0017202fd5f9cf395119816c2b2ba8faa37e5c89171970cd