[INFO] fetching crate rbtables 0.1.4...
[INFO] testing rbtables-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rbtables 0.1.4 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate rbtables 0.1.4 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 rbtables 0.1.4
[INFO] finished tweaking crates.io crate rbtables 0.1.4
[INFO] tweaked toml for crates.io crate rbtables 0.1.4 written to /workspace/builds/worker-94/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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] a661c213ed2e6bb08b1f788350da819f6a06525b896863c603b860d42ac149e7
[INFO] running `Command { std: "docker" "start" "-a" "a661c213ed2e6bb08b1f788350da819f6a06525b896863c603b860d42ac149e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a661c213ed2e6bb08b1f788350da819f6a06525b896863c603b860d42ac149e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a661c213ed2e6bb08b1f788350da819f6a06525b896863c603b860d42ac149e7", kill_on_drop: false }`
[INFO] [stdout] a661c213ed2e6bb08b1f788350da819f6a06525b896863c603b860d42ac149e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 7ea528d07e810077079a93730a4750fd66ea7ab0dc29a6ea6c5b1833f506640e
[INFO] running `Command { std: "docker" "start" "-a" "7ea528d07e810077079a93730a4750fd66ea7ab0dc29a6ea6c5b1833f506640e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crossbeam v0.3.2
[INFO] [stderr]    Compiling rbtables v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "7ea528d07e810077079a93730a4750fd66ea7ab0dc29a6ea6c5b1833f506640e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea528d07e810077079a93730a4750fd66ea7ab0dc29a6ea6c5b1833f506640e", kill_on_drop: false }`
[INFO] [stdout] 7ea528d07e810077079a93730a4750fd66ea7ab0dc29a6ea6c5b1833f506640e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 38c7d449907373991fd28f2e51d127756c2b193e2b1a91170c8852046d401f8b
[INFO] running `Command { std: "docker" "start" "-a" "38c7d449907373991fd28f2e51d127756c2b193e2b1a91170c8852046d401f8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rbtables v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut hash = hf.digest(&value[..]);
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 5.85s
[INFO] running `Command { std: "docker" "inspect" "38c7d449907373991fd28f2e51d127756c2b193e2b1a91170c8852046d401f8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c7d449907373991fd28f2e51d127756c2b193e2b1a91170c8852046d401f8b", kill_on_drop: false }`
[INFO] [stdout] 38c7d449907373991fd28f2e51d127756c2b193e2b1a91170c8852046d401f8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] dde38882a8479c2b9f6c5cab1a08154a668d0687098316d2d3beb03ae8ac327a
[INFO] running `Command { std: "docker" "start" "-a" "dde38882a8479c2b9f6c5cab1a08154a668d0687098316d2d3beb03ae8ac327a", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |             let mut hash = hf.digest(&value[..]);
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rbtables` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rbtables-f0055d1ee0d4539e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_rainbow_table_find_none ... ok
[INFO] [stdout] test tests::test_rainbow_table_find_random ... ok
[INFO] [stdout] test tests::test_rainbow_table_find_seeds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 44.65s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rbtables
[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" "dde38882a8479c2b9f6c5cab1a08154a668d0687098316d2d3beb03ae8ac327a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dde38882a8479c2b9f6c5cab1a08154a668d0687098316d2d3beb03ae8ac327a", kill_on_drop: false }`
[INFO] [stdout] dde38882a8479c2b9f6c5cab1a08154a668d0687098316d2d3beb03ae8ac327a