[INFO] crate nanoid 0.2.0 is already in cache
[INFO] extracting crate nanoid 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/nanoid/0.2.0
[INFO] extracting crate nanoid 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nanoid/0.2.0
[INFO] validating manifest of nanoid-0.2.0 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 nanoid-0.2.0 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 nanoid-0.2.0
[INFO] finished frobbing nanoid-0.2.0
[INFO] frobbed toml for nanoid-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/nanoid/0.2.0/Cargo.toml
[INFO] started frobbing nanoid-0.2.0
[INFO] finished frobbing nanoid-0.2.0
[INFO] frobbed toml for nanoid-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nanoid/0.2.0/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] 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nanoid-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nanoid/0.2.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e228cd7001a5d5fcbbe5f9e99ffcc05a812bf6896b51ab6096584ce94bb316f9
[INFO] running `"docker" "start" "-a" "e228cd7001a5d5fcbbe5f9e99ffcc05a812bf6896b51ab6096584ce94bb316f9"`
[INFO] [stderr]    Compiling nanoid v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `random`
[INFO] [stderr]  --> src/generator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use random;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `alphabet`
[INFO] [stderr]  --> src/generator.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use alphabet;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand`
[INFO] [stderr]  --> src/random.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/random.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "e228cd7001a5d5fcbbe5f9e99ffcc05a812bf6896b51ab6096584ce94bb316f9"`
[INFO] running `"docker" "rm" "-f" "e228cd7001a5d5fcbbe5f9e99ffcc05a812bf6896b51ab6096584ce94bb316f9"`
[INFO] [stdout] e228cd7001a5d5fcbbe5f9e99ffcc05a812bf6896b51ab6096584ce94bb316f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nanoid/0.2.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 33ead3bc9f40b083289791e0eeff41589dcdf7df7f20647d6f4c25077515e3e8
[INFO] running `"docker" "start" "-a" "33ead3bc9f40b083289791e0eeff41589dcdf7df7f20647d6f4c25077515e3e8"`
[INFO] [stderr]    Compiling nanoid v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand`
[INFO] [stderr]  --> src/random.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `"docker" "inspect" "33ead3bc9f40b083289791e0eeff41589dcdf7df7f20647d6f4c25077515e3e8"`
[INFO] running `"docker" "rm" "-f" "33ead3bc9f40b083289791e0eeff41589dcdf7df7f20647d6f4c25077515e3e8"`
[INFO] [stdout] 33ead3bc9f40b083289791e0eeff41589dcdf7df7f20647d6f4c25077515e3e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nanoid/0.2.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 491b835654d9b323bd45c754c44ab4649cdf606ced78bfce80ef08cb7254e734
[INFO] running `"docker" "start" "-a" "491b835654d9b323bd45c754c44ab4649cdf606ced78bfce80ef08cb7254e734"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nanoid-8326b6394e4589f8
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test random::test_secure::generates_random_vectors ... ok
[INFO] [stdout] test generator::test_universal::generates_random_string ... ok
[INFO] [stdout] test generator::test_fast::correct_length ... ok
[INFO] [stdout] test generator::test_fast::url_friendly ... ok
[INFO] [stdout] test random::test_standart::generates_random_vectors ... ok
[INFO] [stdout] test generator::test_fast::no_collisions ... ok
[INFO] [stdout] test generator::test_fast::flat_distribution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nanoid
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs -  (line 29) ... ok
[INFO] [stdout] test src/lib.rs -  (line 106) ... ok
[INFO] [stdout] test src/lib.rs -  (line 78) ... ok
[INFO] [stdout] test src/alphabet.rs - alphabet::SAFE (line 8) ... ok
[INFO] [stdout] test src/lib.rs -  (line 14) ... ok
[INFO] [stdout] test src/lib.rs -  (line 45) ... ok
[INFO] [stdout] test src/lib.rs -  (line 58) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "491b835654d9b323bd45c754c44ab4649cdf606ced78bfce80ef08cb7254e734"`
[INFO] running `"docker" "rm" "-f" "491b835654d9b323bd45c754c44ab4649cdf606ced78bfce80ef08cb7254e734"`
[INFO] [stdout] 491b835654d9b323bd45c754c44ab4649cdf606ced78bfce80ef08cb7254e734