[INFO] crate persistent-time 0.1.0 is already in cache
[INFO] extracting crate persistent-time 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/persistent-time/0.1.0
[INFO] extracting crate persistent-time 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/persistent-time/0.1.0
[INFO] validating manifest of persistent-time-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of persistent-time-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing persistent-time-0.1.0
[INFO] finished frobbing persistent-time-0.1.0
[INFO] frobbed toml for persistent-time-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/persistent-time/0.1.0/Cargo.toml
[INFO] started frobbing persistent-time-0.1.0
[INFO] finished frobbing persistent-time-0.1.0
[INFO] frobbed toml for persistent-time-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/persistent-time/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing persistent-time-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/persistent-time/0.1.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b2568ee540babc3fa032a079b9cbc5df30b8a92885a4ce022a6387fcf75b68b5
[INFO] running `"docker" "start" "-a" "b2568ee540babc3fa032a079b9cbc5df30b8a92885a4ce022a6387fcf75b68b5"`
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling redis v0.6.0
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling postgres v0.11.12
[INFO] [stderr]    Compiling bincode v0.5.9
[INFO] [stderr]    Compiling persistent-time v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:69:34
[INFO] [stderr]    |
[INFO] [stderr] 69 |                                  mut w: &mut W,
[INFO] [stderr]    |                                  ----^
[INFO] [stderr]    |                                  |
[INFO] [stderr]    |                                  help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.13s
[INFO] running `"docker" "inspect" "b2568ee540babc3fa032a079b9cbc5df30b8a92885a4ce022a6387fcf75b68b5"`
[INFO] running `"docker" "rm" "-f" "b2568ee540babc3fa032a079b9cbc5df30b8a92885a4ce022a6387fcf75b68b5"`
[INFO] [stdout] b2568ee540babc3fa032a079b9cbc5df30b8a92885a4ce022a6387fcf75b68b5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/persistent-time/0.1.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 666dbb66a77b6bbbc2a3d1b9fb5a06f2710cf810a23d5cd990c492bd9b08d961
[INFO] running `"docker" "start" "-a" "666dbb66a77b6bbbc2a3d1b9fb5a06f2710cf810a23d5cd990c492bd9b08d961"`
[INFO] [stderr]    Compiling persistent-time v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:69:34
[INFO] [stderr]    |
[INFO] [stderr] 69 |                                  mut w: &mut W,
[INFO] [stderr]    |                                  ----^
[INFO] [stderr]    |                                  |
[INFO] [stderr]    |                                  help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "666dbb66a77b6bbbc2a3d1b9fb5a06f2710cf810a23d5cd990c492bd9b08d961"`
[INFO] running `"docker" "rm" "-f" "666dbb66a77b6bbbc2a3d1b9fb5a06f2710cf810a23d5cd990c492bd9b08d961"`
[INFO] [stdout] 666dbb66a77b6bbbc2a3d1b9fb5a06f2710cf810a23d5cd990c492bd9b08d961
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/persistent-time/0.1.0:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] d520a33c82535d9d074084c65fe81a8e2cf5b8624a0f1051d42a3622f46f0703
[INFO] running `"docker" "start" "-a" "d520a33c82535d9d074084c65fe81a8e2cf5b8624a0f1051d42a3622f46f0703"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/persistent_time-9f2ba782d8fd8cc9
[INFO] [stderr]    Doc-tests persistent-time
[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" "d520a33c82535d9d074084c65fe81a8e2cf5b8624a0f1051d42a3622f46f0703"`
[INFO] running `"docker" "rm" "-f" "d520a33c82535d9d074084c65fe81a8e2cf5b8624a0f1051d42a3622f46f0703"`
[INFO] [stdout] d520a33c82535d9d074084c65fe81a8e2cf5b8624a0f1051d42a3622f46f0703