[INFO] crate checkpoint 0.1.5 is already in cache
[INFO] extracting crate checkpoint 0.1.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint/0.1.5
[INFO] extracting crate checkpoint 0.1.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/checkpoint/0.1.5
[INFO] validating manifest of checkpoint-0.1.5 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 checkpoint-0.1.5 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 checkpoint-0.1.5
[INFO] finished frobbing checkpoint-0.1.5
[INFO] frobbed toml for checkpoint-0.1.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint/0.1.5/Cargo.toml
[INFO] started frobbing checkpoint-0.1.5
[INFO] finished frobbing checkpoint-0.1.5
[INFO] frobbed toml for checkpoint-0.1.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/checkpoint/0.1.5/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing checkpoint-0.1.5 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint/0.1.5:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a389551433c973f6e017d4feb38750186ce1338995e321dd74f79c9f08a66963
[INFO] running `"docker" "start" "-a" "a389551433c973f6e017d4feb38750186ce1338995e321dd74f79c9f08a66963"`
[INFO] [stderr]    Compiling checkpoint v0.1.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]     |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `"docker" "inspect" "a389551433c973f6e017d4feb38750186ce1338995e321dd74f79c9f08a66963"`
[INFO] running `"docker" "rm" "-f" "a389551433c973f6e017d4feb38750186ce1338995e321dd74f79c9f08a66963"`
[INFO] [stdout] a389551433c973f6e017d4feb38750186ce1338995e321dd74f79c9f08a66963
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint/0.1.5:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 43d3d4dabd7ff29f1e4255de274f2d138ebab6a4bf6bc1e6aed2d9731c767cf2
[INFO] running `"docker" "start" "-a" "43d3d4dabd7ff29f1e4255de274f2d138ebab6a4bf6bc1e6aed2d9731c767cf2"`
[INFO] [stderr]    Compiling checkpoint v0.1.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]     |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `"docker" "inspect" "43d3d4dabd7ff29f1e4255de274f2d138ebab6a4bf6bc1e6aed2d9731c767cf2"`
[INFO] running `"docker" "rm" "-f" "43d3d4dabd7ff29f1e4255de274f2d138ebab6a4bf6bc1e6aed2d9731c767cf2"`
[INFO] [stdout] 43d3d4dabd7ff29f1e4255de274f2d138ebab6a4bf6bc1e6aed2d9731c767cf2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint/0.1.5:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 8c6162b2a44e6a892fc494187cfce2f8a516e518d567c09cd755d7e725b82bc9
[INFO] running `"docker" "start" "-a" "8c6162b2a44e6a892fc494187cfce2f8a516e518d567c09cd755d7e725b82bc9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/checkpoint-7b5d8e45ebff9e56
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test storage::memory_storage::test::uncommitted_and_committed ... ok
[INFO] [stdout] test storage::memory_storage::test::memory_storage_load_and_remove_checkpoint ... ok
[INFO] [stdout] test storage::memory_storage::test::memory_storage_create_and_commit_checkpoint ... ok
[INFO] [stdout] test storage::memory_storage::test::memory_storage_checkpoint_identifiers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests checkpoint
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 51) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8c6162b2a44e6a892fc494187cfce2f8a516e518d567c09cd755d7e725b82bc9"`
[INFO] running `"docker" "rm" "-f" "8c6162b2a44e6a892fc494187cfce2f8a516e518d567c09cd755d7e725b82bc9"`
[INFO] [stdout] 8c6162b2a44e6a892fc494187cfce2f8a516e518d567c09cd755d7e725b82bc9