[INFO] fetching crate shannon 0.2.0...
[INFO] testing shannon-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate shannon 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate shannon 0.2.0 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 shannon 0.2.0
[INFO] finished tweaking crates.io crate shannon 0.2.0
[INFO] tweaked toml for crates.io crate shannon 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] fadd3b001a655afbd4210733d177466b02d8278080de936919458280129f3dc2
[INFO] running `Command { std: "docker" "start" "-a" "fadd3b001a655afbd4210733d177466b02d8278080de936919458280129f3dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fadd3b001a655afbd4210733d177466b02d8278080de936919458280129f3dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fadd3b001a655afbd4210733d177466b02d8278080de936919458280129f3dc2", kill_on_drop: false }`
[INFO] [stdout] fadd3b001a655afbd4210733d177466b02d8278080de936919458280129f3dc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 20d68535a631c12c00edcc35a8fd5aa3d2c9aba60f77cc9f6c7ab124f87e7a8b
[INFO] running `Command { std: "docker" "start" "-a" "20d68535a631c12c00edcc35a8fd5aa3d2c9aba60f77cc9f6c7ab124f87e7a8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling shannon v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | const INITKONST: u32 = 0x6996c53ai32 as (u32);
[INFO] [stdout]    |                                         ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` 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 0.74s
[INFO] running `Command { std: "docker" "inspect" "20d68535a631c12c00edcc35a8fd5aa3d2c9aba60f77cc9f6c7ab124f87e7a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d68535a631c12c00edcc35a8fd5aa3d2c9aba60f77cc9f6c7ab124f87e7a8b", kill_on_drop: false }`
[INFO] [stdout] 20d68535a631c12c00edcc35a8fd5aa3d2c9aba60f77cc9f6c7ab124f87e7a8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 432a8266eef5ee2c6102fd8d8c22ad5087703a2443588de3a7318cb8726177e8
[INFO] running `Command { std: "docker" "start" "-a" "432a8266eef5ee2c6102fd8d8c22ad5087703a2443588de3a7318cb8726177e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling shannon v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | const INITKONST: u32 = 0x6996c53ai32 as (u32);
[INFO] [stdout]    |                                         ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | const INITKONST: u32 = 0x6996c53ai32 as (u32);
[INFO] [stdout]    |                                         ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` 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 0.36s
[INFO] running `Command { std: "docker" "inspect" "432a8266eef5ee2c6102fd8d8c22ad5087703a2443588de3a7318cb8726177e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432a8266eef5ee2c6102fd8d8c22ad5087703a2443588de3a7318cb8726177e8", kill_on_drop: false }`
[INFO] [stdout] 432a8266eef5ee2c6102fd8d8c22ad5087703a2443588de3a7318cb8726177e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5fbad3b15f3211ae089edddf6cc6cd4b41abd1dc53cd70a932a1b1f82f3003a7
[INFO] running `Command { std: "docker" "start" "-a" "5fbad3b15f3211ae089edddf6cc6cd4b41abd1dc53cd70a932a1b1f82f3003a7", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INITKONST: u32 = 0x6996c53ai32 as (u32);
[INFO] [stderr]    |                                         ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `shannon` (lib) generated 1 warning
[INFO] [stderr] warning: `shannon` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shannon-dacd46b2c3cc6b26)
[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] [stderr]    Doc-tests shannon
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INITKONST: u32 = 0x6996c53ai32 as (u32);
[INFO] [stderr]    |                                         ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "5fbad3b15f3211ae089edddf6cc6cd4b41abd1dc53cd70a932a1b1f82f3003a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fbad3b15f3211ae089edddf6cc6cd4b41abd1dc53cd70a932a1b1f82f3003a7", kill_on_drop: false }`
[INFO] [stdout] 5fbad3b15f3211ae089edddf6cc6cd4b41abd1dc53cd70a932a1b1f82f3003a7