[INFO] fetching crate shamir 2.0.0...
[INFO] testing shamir-2.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate shamir 2.0.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate shamir 2.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shamir 2.0.0
[INFO] finished tweaking crates.io crate shamir 2.0.0
[INFO] tweaked toml for crates.io crate shamir 2.0.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate shamir 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e645db34ab343bb61fb2cb2045a5bd1fa9ce290dc65fd687fe1e05dc52784a25
[INFO] running `Command { std: "docker" "start" "-a" "e645db34ab343bb61fb2cb2045a5bd1fa9ce290dc65fd687fe1e05dc52784a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e645db34ab343bb61fb2cb2045a5bd1fa9ce290dc65fd687fe1e05dc52784a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e645db34ab343bb61fb2cb2045a5bd1fa9ce290dc65fd687fe1e05dc52784a25", kill_on_drop: false }`
[INFO] [stdout] e645db34ab343bb61fb2cb2045a5bd1fa9ce290dc65fd687fe1e05dc52784a25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 616b9590e6043d15f6d71c5c22771c08eb9cec36c6470a04ac187738599b8839
[INFO] running `Command { std: "docker" "start" "-a" "616b9590e6043d15f6d71c5c22771c08eb9cec36c6470a04ac187738599b8839", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling shamir v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 |             let b = try!(SecretData::accumulate_share_bytes(id, coefficient));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "616b9590e6043d15f6d71c5c22771c08eb9cec36c6470a04ac187738599b8839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "616b9590e6043d15f6d71c5c22771c08eb9cec36c6470a04ac187738599b8839", kill_on_drop: false }`
[INFO] [stdout] 616b9590e6043d15f6d71c5c22771c08eb9cec36c6470a04ac187738599b8839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58ec3a266208c872e2333bdf0c373eddfd0c0cc551e8176a88b006ba1a379663
[INFO] running `Command { std: "docker" "start" "-a" "58ec3a266208c872e2333bdf0c373eddfd0c0cc551e8176a88b006ba1a379663", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling shamir v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 |             let b = try!(SecretData::accumulate_share_bytes(id, coefficient));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 |             let b = try!(SecretData::accumulate_share_bytes(id, coefficient));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "58ec3a266208c872e2333bdf0c373eddfd0c0cc551e8176a88b006ba1a379663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58ec3a266208c872e2333bdf0c373eddfd0c0cc551e8176a88b006ba1a379663", kill_on_drop: false }`
[INFO] [stdout] 58ec3a266208c872e2333bdf0c373eddfd0c0cc551e8176a88b006ba1a379663
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3050bdee426be327c586885adee06409fc3c0174c51f7f53c4c0d5b7b3df385
[INFO] running `Command { std: "docker" "start" "-a" "f3050bdee426be327c586885adee06409fc3c0174c51f7f53c4c0d5b7b3df385", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:134:21
[INFO] [stderr]     |
[INFO] [stderr] 134 |             let b = try!(SecretData::accumulate_share_bytes(id, coefficient));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `shamir` (lib) generated 1 warning
[INFO] [stderr] warning: `shamir` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shamir-c21c14d24d6a5bc1)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::it_can_recover_a_generated_secret ... ok
[INFO] [stdout] test tests::it_generates_coefficients ... ok
[INFO] [stdout] test tests::it_rejects_share_id_under_1 ... ok
[INFO] [stdout] test tests::it_repeatedly_issues_shares ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::it_can_recover_secret ... ok
[INFO] [stdout] test tests::it_issues_shares ... ok
[INFO] [stderr]    Doc-tests shamir
[INFO] [stdout] test tests::it_requires_enough_shares ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f3050bdee426be327c586885adee06409fc3c0174c51f7f53c4c0d5b7b3df385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3050bdee426be327c586885adee06409fc3c0174c51f7f53c4c0d5b7b3df385", kill_on_drop: false }`
[INFO] [stdout] f3050bdee426be327c586885adee06409fc3c0174c51f7f53c4c0d5b7b3df385