[INFO] updating cached repository maniflames/time-frame-json-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maniflames/time-frame-json-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maniflames/time-frame-json-generator" "work/ex/beta-1.37-6/sources/1.36.0/gh/maniflames/time-frame-json-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/maniflames/time-frame-json-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maniflames/time-frame-json-generator" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/maniflames/time-frame-json-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/maniflames/time-frame-json-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5177d990276887f3c5803f437e2020504c242f6f
[INFO] sha for GitHub repo maniflames/time-frame-json-generator: 5177d990276887f3c5803f437e2020504c242f6f
[INFO] validating manifest of maniflames/time-frame-json-generator 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 maniflames/time-frame-json-generator 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 maniflames/time-frame-json-generator
[INFO] finished frobbing maniflames/time-frame-json-generator
[INFO] frobbed toml for maniflames/time-frame-json-generator written to work/ex/beta-1.37-6/sources/1.36.0/gh/maniflames/time-frame-json-generator/Cargo.toml
[INFO] started frobbing maniflames/time-frame-json-generator
[INFO] finished frobbing maniflames/time-frame-json-generator
[INFO] frobbed toml for maniflames/time-frame-json-generator written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/maniflames/time-frame-json-generator/Cargo.toml
[INFO] crate maniflames/time-frame-json-generator already has a lockfile, it will not be regenerated
[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 maniflames/time-frame-json-generator against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/maniflames/time-frame-json-generator:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 3ccadcfd91b54678a2ab7cefd54911b68c545c4179b68f8c4f40416c8949be71
[INFO] running `"docker" "start" "-a" "3ccadcfd91b54678a2ab7cefd54911b68c545c4179b68f8c4f40416c8949be71"`
[INFO] [stderr]    Compiling timeframe v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rustc_serialize::json::{self, Encoder};
[INFO] [stderr]   |                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             let mut package_ids_len = package_ids.len();
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     f.read_to_string(&mut json);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `"docker" "inspect" "3ccadcfd91b54678a2ab7cefd54911b68c545c4179b68f8c4f40416c8949be71"`
[INFO] running `"docker" "rm" "-f" "3ccadcfd91b54678a2ab7cefd54911b68c545c4179b68f8c4f40416c8949be71"`
[INFO] [stdout] 3ccadcfd91b54678a2ab7cefd54911b68c545c4179b68f8c4f40416c8949be71
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/maniflames/time-frame-json-generator:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 165f74683553a0f4c7b13960cc3bd0dbbf03c165eee1053246941266d6f56d61
[INFO] running `"docker" "start" "-a" "165f74683553a0f4c7b13960cc3bd0dbbf03c165eee1053246941266d6f56d61"`
[INFO] [stderr]    Compiling timeframe v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rustc_serialize::json::{self, Encoder};
[INFO] [stderr]   |                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             let mut package_ids_len = package_ids.len();
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     f.read_to_string(&mut json);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "165f74683553a0f4c7b13960cc3bd0dbbf03c165eee1053246941266d6f56d61"`
[INFO] running `"docker" "rm" "-f" "165f74683553a0f4c7b13960cc3bd0dbbf03c165eee1053246941266d6f56d61"`
[INFO] [stdout] 165f74683553a0f4c7b13960cc3bd0dbbf03c165eee1053246941266d6f56d61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/maniflames/time-frame-json-generator:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 8a90682a32245cd891ef50648e0d2b6469e859b8e6e47bc09e27f06b2541e6e4
[INFO] running `"docker" "start" "-a" "8a90682a32245cd891ef50648e0d2b6469e859b8e6e47bc09e27f06b2541e6e4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/timeframe-d23c35846b087f09
[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" "8a90682a32245cd891ef50648e0d2b6469e859b8e6e47bc09e27f06b2541e6e4"`
[INFO] running `"docker" "rm" "-f" "8a90682a32245cd891ef50648e0d2b6469e859b8e6e47bc09e27f06b2541e6e4"`
[INFO] [stdout] 8a90682a32245cd891ef50648e0d2b6469e859b8e6e47bc09e27f06b2541e6e4