[INFO] crate checkpoint_derive 0.1.2 is already in cache
[INFO] extracting crate checkpoint_derive 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint_derive/0.1.2
[INFO] extracting crate checkpoint_derive 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/checkpoint_derive/0.1.2
[INFO] validating manifest of checkpoint_derive-0.1.2 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_derive-0.1.2 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_derive-0.1.2
[INFO] finished frobbing checkpoint_derive-0.1.2
[INFO] frobbed toml for checkpoint_derive-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint_derive/0.1.2/Cargo.toml
[INFO] started frobbing checkpoint_derive-0.1.2
[INFO] finished frobbing checkpoint_derive-0.1.2
[INFO] frobbed toml for checkpoint_derive-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/checkpoint_derive/0.1.2/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] [stderr]     Blocking waiting for file lock on package cache
[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] [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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing checkpoint_derive-0.1.2 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint_derive/0.1.2:/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] 75723127d0ae8ce55e4e64b874f5babcc7adec0ddc5156ec43cdc2d9c8a0e17e
[INFO] running `"docker" "start" "-a" "75723127d0ae8ce55e4e64b874f5babcc7adec0ddc5156ec43cdc2d9c8a0e17e"`
[INFO] [stderr]    Compiling checkpoint_derive v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `"docker" "inspect" "75723127d0ae8ce55e4e64b874f5babcc7adec0ddc5156ec43cdc2d9c8a0e17e"`
[INFO] running `"docker" "rm" "-f" "75723127d0ae8ce55e4e64b874f5babcc7adec0ddc5156ec43cdc2d9c8a0e17e"`
[INFO] [stdout] 75723127d0ae8ce55e4e64b874f5babcc7adec0ddc5156ec43cdc2d9c8a0e17e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint_derive/0.1.2:/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] a3819662dbfaa7c8bc37357034ed57e4f70da7cffe1f537e4e79d1fdb264109e
[INFO] running `"docker" "start" "-a" "a3819662dbfaa7c8bc37357034ed57e4f70da7cffe1f537e4e79d1fdb264109e"`
[INFO] [stderr]    Compiling checkpoint_derive v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "a3819662dbfaa7c8bc37357034ed57e4f70da7cffe1f537e4e79d1fdb264109e"`
[INFO] running `"docker" "rm" "-f" "a3819662dbfaa7c8bc37357034ed57e4f70da7cffe1f537e4e79d1fdb264109e"`
[INFO] [stdout] a3819662dbfaa7c8bc37357034ed57e4f70da7cffe1f537e4e79d1fdb264109e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/checkpoint_derive/0.1.2:/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] 720acc23d5e51a1f13bb01961581ae9bba13a0c1ae51b2acca05d12af28f67bf
[INFO] running `"docker" "start" "-a" "720acc23d5e51a1f13bb01961581ae9bba13a0c1ae51b2acca05d12af28f67bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/checkpoint_derive-576bd076a6bab731
[INFO] [stderr]    Doc-tests checkpoint_derive
[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] [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" "720acc23d5e51a1f13bb01961581ae9bba13a0c1ae51b2acca05d12af28f67bf"`
[INFO] running `"docker" "rm" "-f" "720acc23d5e51a1f13bb01961581ae9bba13a0c1ae51b2acca05d12af28f67bf"`
[INFO] [stdout] 720acc23d5e51a1f13bb01961581ae9bba13a0c1ae51b2acca05d12af28f67bf