[INFO] fetching crate hamming-dict 0.5.0...
[INFO] testing hamming-dict-0.5.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate hamming-dict 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate hamming-dict 0.5.0 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] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking crates.io crate hamming-dict 0.5.0
[INFO] finished tweaking crates.io crate hamming-dict 0.5.0
[INFO] tweaked toml for crates.io crate hamming-dict 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate hamming-dict 0.5.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ef36ba9e9d0bdb40bd499121737e3988d3e74c1c3aa9260f062091bba21bd9e
[INFO] running `Command { std: "docker" "start" "-a" "4ef36ba9e9d0bdb40bd499121737e3988d3e74c1c3aa9260f062091bba21bd9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef36ba9e9d0bdb40bd499121737e3988d3e74c1c3aa9260f062091bba21bd9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef36ba9e9d0bdb40bd499121737e3988d3e74c1c3aa9260f062091bba21bd9e", kill_on_drop: false }`
[INFO] [stdout] 4ef36ba9e9d0bdb40bd499121737e3988d3e74c1c3aa9260f062091bba21bd9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 54fec327fbb5e19eb4af162c24ba6f414fc62cf9282e64059c2bd4c285bfb122
[INFO] running `Command { std: "docker" "start" "-a" "54fec327fbb5e19eb4af162c24ba6f414fc62cf9282e64059c2bd4c285bfb122", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling bitarray v0.9.1
[INFO] [stderr]    Compiling hamming-dict v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "54fec327fbb5e19eb4af162c24ba6f414fc62cf9282e64059c2bd4c285bfb122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54fec327fbb5e19eb4af162c24ba6f414fc62cf9282e64059c2bd4c285bfb122", kill_on_drop: false }`
[INFO] [stdout] 54fec327fbb5e19eb4af162c24ba6f414fc62cf9282e64059c2bd4c285bfb122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b5879c4c68569a2dc3e987114daa9c0dbea9dc9384bc4e46bc946e3766fcfbe7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b5879c4c68569a2dc3e987114daa9c0dbea9dc9384bc4e46bc946e3766fcfbe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamming-dict v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "b5879c4c68569a2dc3e987114daa9c0dbea9dc9384bc4e46bc946e3766fcfbe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5879c4c68569a2dc3e987114daa9c0dbea9dc9384bc4e46bc946e3766fcfbe7", kill_on_drop: false }`
[INFO] [stdout] b5879c4c68569a2dc3e987114daa9c0dbea9dc9384bc4e46bc946e3766fcfbe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9d76c9b74cb12d29e74f641abed74180d01269750a567efa0fa7af98a37f23c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9d76c9b74cb12d29e74f641abed74180d01269750a567efa0fa7af98a37f23c2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hamming_dict-f0004aa0d363f713)
[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 hamming-dict
[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" "9d76c9b74cb12d29e74f641abed74180d01269750a567efa0fa7af98a37f23c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d76c9b74cb12d29e74f641abed74180d01269750a567efa0fa7af98a37f23c2", kill_on_drop: false }`
[INFO] [stdout] 9d76c9b74cb12d29e74f641abed74180d01269750a567efa0fa7af98a37f23c2