[INFO] crate kademlia 0.1.0 is already in cache
[INFO] extracting crate kademlia 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/kademlia/0.1.0
[INFO] extracting crate kademlia 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/kademlia/0.1.0
[INFO] validating manifest of kademlia-0.1.0 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 kademlia-0.1.0 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 kademlia-0.1.0
[INFO] finished frobbing kademlia-0.1.0
[INFO] frobbed toml for kademlia-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/kademlia/0.1.0/Cargo.toml
[INFO] started frobbing kademlia-0.1.0
[INFO] finished frobbing kademlia-0.1.0
[INFO] frobbed toml for kademlia-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/kademlia/0.1.0/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 kademlia-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/kademlia/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f6a9c2672e6172d5116b39363c8ba8ce125a371db50d700a7f85024e32361080
[INFO] running `"docker" "start" "-a" "f6a9c2672e6172d5116b39363c8ba8ce125a371db50d700a7f85024e32361080"`
[INFO] [stderr]    Compiling kademlia v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::OsRng`
[INFO] [stderr]  --> src/number_160.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::OsRng;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `number_160::Number160`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use number_160::Number160;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Number160`
[INFO] [stderr]  --> src/number_160.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | / pub struct Number160 (
[INFO] [stderr] 4 | |     [u8; 20]
[INFO] [stderr] 5 | | );
[INFO] [stderr]   | |__^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/number_160.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(b : [u8; 20]) -> Number160 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "f6a9c2672e6172d5116b39363c8ba8ce125a371db50d700a7f85024e32361080"`
[INFO] running `"docker" "rm" "-f" "f6a9c2672e6172d5116b39363c8ba8ce125a371db50d700a7f85024e32361080"`
[INFO] [stdout] f6a9c2672e6172d5116b39363c8ba8ce125a371db50d700a7f85024e32361080
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/kademlia/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ec29e2aa0a2306f4fb92a6c6d2dd9c54211b0011945c8dfd65af0ead2132daba
[INFO] running `"docker" "start" "-a" "ec29e2aa0a2306f4fb92a6c6d2dd9c54211b0011945c8dfd65af0ead2132daba"`
[INFO] [stderr]    Compiling kademlia v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::OsRng`
[INFO] [stderr]  --> src/number_160.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::OsRng;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `number_160::Number160`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use number_160::Number160;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Number160`
[INFO] [stderr]  --> src/number_160.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | / pub struct Number160 (
[INFO] [stderr] 4 | |     [u8; 20]
[INFO] [stderr] 5 | | );
[INFO] [stderr]   | |__^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/number_160.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(b : [u8; 20]) -> Number160 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "ec29e2aa0a2306f4fb92a6c6d2dd9c54211b0011945c8dfd65af0ead2132daba"`
[INFO] running `"docker" "rm" "-f" "ec29e2aa0a2306f4fb92a6c6d2dd9c54211b0011945c8dfd65af0ead2132daba"`
[INFO] [stdout] ec29e2aa0a2306f4fb92a6c6d2dd9c54211b0011945c8dfd65af0ead2132daba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/kademlia/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 4c393788cf423444e2e279b982378f0c4747c004fa61b05c70fcefa9f67bf2cb
[INFO] running `"docker" "start" "-a" "4c393788cf423444e2e279b982378f0c4747c004fa61b05c70fcefa9f67bf2cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kademlia-5dd0efd08a7326fb
[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" "4c393788cf423444e2e279b982378f0c4747c004fa61b05c70fcefa9f67bf2cb"`
[INFO] running `"docker" "rm" "-f" "4c393788cf423444e2e279b982378f0c4747c004fa61b05c70fcefa9f67bf2cb"`
[INFO] [stdout] 4c393788cf423444e2e279b982378f0c4747c004fa61b05c70fcefa9f67bf2cb