[INFO] updating cached repository calum/rust_reddit_scraper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/calum/rust_reddit_scraper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/calum/rust_reddit_scraper" "work/ex/beta-1.37-6/sources/1.36.0/gh/calum/rust_reddit_scraper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/calum/rust_reddit_scraper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/calum/rust_reddit_scraper" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calum/rust_reddit_scraper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calum/rust_reddit_scraper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cb3f59a462830fbf73eef23761d261bc914c749f
[INFO] sha for GitHub repo calum/rust_reddit_scraper: cb3f59a462830fbf73eef23761d261bc914c749f
[INFO] validating manifest of calum/rust_reddit_scraper 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 calum/rust_reddit_scraper 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 calum/rust_reddit_scraper
[INFO] finished frobbing calum/rust_reddit_scraper
[INFO] frobbed toml for calum/rust_reddit_scraper written to work/ex/beta-1.37-6/sources/1.36.0/gh/calum/rust_reddit_scraper/Cargo.toml
[INFO] started frobbing calum/rust_reddit_scraper
[INFO] finished frobbing calum/rust_reddit_scraper
[INFO] frobbed toml for calum/rust_reddit_scraper written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calum/rust_reddit_scraper/Cargo.toml
[INFO] crate calum/rust_reddit_scraper 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 calum/rust_reddit_scraper 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/calum/rust_reddit_scraper:/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] 870c5f7de8a1084dd535233b12f2aeeea0a4dd087bf5139f663ccc38a0b5ab16
[INFO] running `"docker" "start" "-a" "870c5f7de8a1084dd535233b12f2aeeea0a4dd087bf5139f663ccc38a0b5ab16"`
[INFO] [stderr]    Compiling futures-cpupool v0.1.7
[INFO] [stderr]    Compiling tokio-io v0.1.4
[INFO] [stderr]    Compiling native-tls v0.1.4
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling dotenv v0.10.1
[INFO] [stderr]    Compiling tokio-core v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-tls v0.1.3
[INFO] [stderr]    Compiling hyper v0.11.9
[INFO] [stderr]    Compiling hyper-tls v0.1.2
[INFO] [stderr]    Compiling rust_reddit_user_scraper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `url`
[INFO] [stderr]  --> src/reddit/authenticate.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     url: String,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.13s
[INFO] running `"docker" "inspect" "870c5f7de8a1084dd535233b12f2aeeea0a4dd087bf5139f663ccc38a0b5ab16"`
[INFO] running `"docker" "rm" "-f" "870c5f7de8a1084dd535233b12f2aeeea0a4dd087bf5139f663ccc38a0b5ab16"`
[INFO] [stdout] 870c5f7de8a1084dd535233b12f2aeeea0a4dd087bf5139f663ccc38a0b5ab16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/calum/rust_reddit_scraper:/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] 9a7f82e22ea91416e661565d020bfe9e1a060e73a6c6d854b453f2df1aab2bf4
[INFO] running `"docker" "start" "-a" "9a7f82e22ea91416e661565d020bfe9e1a060e73a6c6d854b453f2df1aab2bf4"`
[INFO] [stderr]    Compiling rust_reddit_user_scraper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `url`
[INFO] [stderr]  --> src/reddit/authenticate.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     url: String,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `"docker" "inspect" "9a7f82e22ea91416e661565d020bfe9e1a060e73a6c6d854b453f2df1aab2bf4"`
[INFO] running `"docker" "rm" "-f" "9a7f82e22ea91416e661565d020bfe9e1a060e73a6c6d854b453f2df1aab2bf4"`
[INFO] [stdout] 9a7f82e22ea91416e661565d020bfe9e1a060e73a6c6d854b453f2df1aab2bf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/calum/rust_reddit_scraper:/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] 7b119f3b4dd7539790265bd3fc236b8d888d0f1af4c2caf61d954ffc878ca8a7
[INFO] running `"docker" "start" "-a" "7b119f3b4dd7539790265bd3fc236b8d888d0f1af4c2caf61d954ffc878ca8a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_reddit_user_scraper-84f8ce0e202728fb
[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]      Running /opt/crater/target/debug/deps/main-fe0922a9299e6230
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_reddit_user_scraper
[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" "7b119f3b4dd7539790265bd3fc236b8d888d0f1af4c2caf61d954ffc878ca8a7"`
[INFO] running `"docker" "rm" "-f" "7b119f3b4dd7539790265bd3fc236b8d888d0f1af4c2caf61d954ffc878ca8a7"`
[INFO] [stdout] 7b119f3b4dd7539790265bd3fc236b8d888d0f1af4c2caf61d954ffc878ca8a7