[INFO] fetching crate readableurl 0.1.0...
[INFO] extracting crate readableurl 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/readableurl/0.1.0
[INFO] extracting crate readableurl 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/readableurl/0.1.0
[INFO] validating manifest of readableurl-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 readableurl-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 readableurl-0.1.0
[INFO] finished frobbing readableurl-0.1.0
[INFO] frobbed toml for readableurl-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/readableurl/0.1.0/Cargo.toml
[INFO] started frobbing readableurl-0.1.0
[INFO] finished frobbing readableurl-0.1.0
[INFO] frobbed toml for readableurl-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/readableurl/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 readableurl-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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/readableurl/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] 698560d99cbacd628da6a3c7cfa93118a932213df1ee03d6204a4ccc2c90114b
[INFO] running `"docker" "start" "-a" "698560d99cbacd628da6a3c7cfa93118a932213df1ee03d6204a4ccc2c90114b"`
[INFO] [stderr]    Compiling readableurl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `camelcase`
[INFO] [stderr]  --> src/lib.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn create(amount: usize, camelcase: bool) -> String {
[INFO] [stderr]   |                              ^^^^^^^^^ help: consider prefixing with an underscore: `_camelcase`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut adjective = adjectives.choose(&mut rand::thread_rng()).unwrap();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut noun = nouns.choose(&mut rand::thread_rng()).unwrap();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "698560d99cbacd628da6a3c7cfa93118a932213df1ee03d6204a4ccc2c90114b"`
[INFO] running `"docker" "rm" "-f" "698560d99cbacd628da6a3c7cfa93118a932213df1ee03d6204a4ccc2c90114b"`
[INFO] [stdout] 698560d99cbacd628da6a3c7cfa93118a932213df1ee03d6204a4ccc2c90114b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/readableurl/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] f14bfb4de56f86e0cc1ff4bdd6308754dccff5eed006c04164ea14513adcf0ce
[INFO] running `"docker" "start" "-a" "f14bfb4de56f86e0cc1ff4bdd6308754dccff5eed006c04164ea14513adcf0ce"`
[INFO] [stderr]    Compiling readableurl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `camelcase`
[INFO] [stderr]  --> src/lib.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn create(amount: usize, camelcase: bool) -> String {
[INFO] [stderr]   |                              ^^^^^^^^^ help: consider prefixing with an underscore: `_camelcase`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut adjective = adjectives.choose(&mut rand::thread_rng()).unwrap();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut noun = nouns.choose(&mut rand::thread_rng()).unwrap();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "f14bfb4de56f86e0cc1ff4bdd6308754dccff5eed006c04164ea14513adcf0ce"`
[INFO] running `"docker" "rm" "-f" "f14bfb4de56f86e0cc1ff4bdd6308754dccff5eed006c04164ea14513adcf0ce"`
[INFO] [stdout] f14bfb4de56f86e0cc1ff4bdd6308754dccff5eed006c04164ea14513adcf0ce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/readableurl/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] c65bb404a5de8b35298fad7190a6793764cdc040c5e1baa3570376105987eee7
[INFO] running `"docker" "start" "-a" "c65bb404a5de8b35298fad7190a6793764cdc040c5e1baa3570376105987eee7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/readableurl-935d5443b53b8f1a
[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]    Doc-tests readableurl
[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" "c65bb404a5de8b35298fad7190a6793764cdc040c5e1baa3570376105987eee7"`
[INFO] running `"docker" "rm" "-f" "c65bb404a5de8b35298fad7190a6793764cdc040c5e1baa3570376105987eee7"`
[INFO] [stdout] c65bb404a5de8b35298fad7190a6793764cdc040c5e1baa3570376105987eee7