[INFO] crate shamir 1.0.2 is already in cache
[INFO] extracting crate shamir 1.0.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/shamir/1.0.2
[INFO] extracting crate shamir 1.0.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/shamir/1.0.2
[INFO] validating manifest of shamir-1.0.2 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 shamir-1.0.2 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 shamir-1.0.2
[INFO] finished frobbing shamir-1.0.2
[INFO] frobbed toml for shamir-1.0.2 written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/shamir/1.0.2/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 shamir-1.0.2 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9321bbe3d5bc80d2e166b6696ba4ba88f4f6be534cab9aab4d40adcfc8aa0c78
[INFO] running `"docker" "start" "-a" "9321bbe3d5bc80d2e166b6696ba4ba88f4f6be534cab9aab4d40adcfc8aa0c78"`
[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 0.67s
[INFO] running `"docker" "inspect" "9321bbe3d5bc80d2e166b6696ba4ba88f4f6be534cab9aab4d40adcfc8aa0c78"`
[INFO] running `"docker" "rm" "-f" "9321bbe3d5bc80d2e166b6696ba4ba88f4f6be534cab9aab4d40adcfc8aa0c78"`
[INFO] [stdout] 9321bbe3d5bc80d2e166b6696ba4ba88f4f6be534cab9aab4d40adcfc8aa0c78
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c69b5ce987a6a11c3d8924f0f2f2e0b3241fa8129236053e3dd7d3054417410c
[INFO] running `"docker" "start" "-a" "c69b5ce987a6a11c3d8924f0f2f2e0b3241fa8129236053e3dd7d3054417410c"`
[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 1.57s
[INFO] running `"docker" "inspect" "c69b5ce987a6a11c3d8924f0f2f2e0b3241fa8129236053e3dd7d3054417410c"`
[INFO] running `"docker" "rm" "-f" "c69b5ce987a6a11c3d8924f0f2f2e0b3241fa8129236053e3dd7d3054417410c"`
[INFO] [stdout] c69b5ce987a6a11c3d8924f0f2f2e0b3241fa8129236053e3dd7d3054417410c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 5b7b86ed7ad5cc1d37f189d01d585f704e9bcad9ad3de30c683beedafe3630fd
[INFO] running `"docker" "start" "-a" "5b7b86ed7ad5cc1d37f189d01d585f704e9bcad9ad3de30c683beedafe3630fd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shamir-86647b914cafe678
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[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_generates_coefficients ... ok
[INFO] [stdout] test tests::it_issues_shares ... ok
[INFO] [stdout] test tests::it_repeatedly_issues_shares ... ok
[INFO] [stdout] test tests::it_works ... 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" "5b7b86ed7ad5cc1d37f189d01d585f704e9bcad9ad3de30c683beedafe3630fd"`
[INFO] running `"docker" "rm" "-f" "5b7b86ed7ad5cc1d37f189d01d585f704e9bcad9ad3de30c683beedafe3630fd"`
[INFO] [stdout] 5b7b86ed7ad5cc1d37f189d01d585f704e9bcad9ad3de30c683beedafe3630fd