[INFO] crate shamir 1.0.2 is already in cache
[INFO] extracting crate shamir 1.0.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/shamir/1.0.2
[INFO] extracting crate shamir 1.0.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/shamir/1.0.2
[INFO] validating manifest of shamir-1.0.2 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 shamir-1.0.2 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 shamir-1.0.2
[INFO] finished frobbing shamir-1.0.2
[INFO] frobbed toml for shamir-1.0.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/shamir/1.0.2/Cargo.toml
[INFO] started frobbing shamir-1.0.2
[INFO] finished frobbing shamir-1.0.2
[INFO] frobbed toml for shamir-1.0.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/shamir/1.0.2/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 shamir-1.0.2 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/shamir/1.0.2:/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] f9a84a7486f34bd40bcba53278bd836e11dc64ea8dfebde9805c0fc53a4f2b5d
[INFO] running `"docker" "start" "-a" "f9a84a7486f34bd40bcba53278bd836e11dc64ea8dfebde9805c0fc53a4f2b5d"`
[INFO] [stderr]    Compiling shamir v1.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::SecretData`
[INFO] [stderr]  --> src/lib.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     use super::SecretData;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:279:33
[INFO] [stderr]     |
[INFO] [stderr] 279 |             let mut t = vec![0; (b.len() - a.len())];
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:282:33
[INFO] [stderr]     |
[INFO] [stderr] 282 |             let mut t = vec![0; (a.len() - b.len())];
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "f9a84a7486f34bd40bcba53278bd836e11dc64ea8dfebde9805c0fc53a4f2b5d"`
[INFO] running `"docker" "rm" "-f" "f9a84a7486f34bd40bcba53278bd836e11dc64ea8dfebde9805c0fc53a4f2b5d"`
[INFO] [stdout] f9a84a7486f34bd40bcba53278bd836e11dc64ea8dfebde9805c0fc53a4f2b5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/shamir/1.0.2:/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] 5a4b020b22ddc3796f41f3415bd2fcb31646ce5b3786ae807ae4b45722a5735f
[INFO] running `"docker" "start" "-a" "5a4b020b22ddc3796f41f3415bd2fcb31646ce5b3786ae807ae4b45722a5735f"`
[INFO] [stderr]    Compiling shamir v1.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:279:33
[INFO] [stderr]     |
[INFO] [stderr] 279 |             let mut t = vec![0; (b.len() - a.len())];
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:282:33
[INFO] [stderr]     |
[INFO] [stderr] 282 |             let mut t = vec![0; (a.len() - b.len())];
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "5a4b020b22ddc3796f41f3415bd2fcb31646ce5b3786ae807ae4b45722a5735f"`
[INFO] running `"docker" "rm" "-f" "5a4b020b22ddc3796f41f3415bd2fcb31646ce5b3786ae807ae4b45722a5735f"`
[INFO] [stdout] 5a4b020b22ddc3796f41f3415bd2fcb31646ce5b3786ae807ae4b45722a5735f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/shamir/1.0.2:/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] b71813579fc67e307b228a5c69cd56408ade37d20fa5f124a413e5e8199acc22
[INFO] running `"docker" "start" "-a" "b71813579fc67e307b228a5c69cd56408ade37d20fa5f124a413e5e8199acc22"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shamir-201e27b0aa5e8c05
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::it_repeatedly_issues_shares ... ok
[INFO] [stdout] test tests::it_can_recover_secret ... ok
[INFO] [stdout] test tests::it_can_recover_a_generated_secret ... ok
[INFO] [stdout] test tests::it_issues_shares ... ok
[INFO] [stdout] test tests::it_generates_coefficients ... ok
[INFO] [stdout] test tests::it_rejects_share_id_under_1 ... 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 shamir
[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" "b71813579fc67e307b228a5c69cd56408ade37d20fa5f124a413e5e8199acc22"`
[INFO] running `"docker" "rm" "-f" "b71813579fc67e307b228a5c69cd56408ade37d20fa5f124a413e5e8199acc22"`
[INFO] [stdout] b71813579fc67e307b228a5c69cd56408ade37d20fa5f124a413e5e8199acc22