[INFO] fetching crate digest-buffer 0.3.1...
[INFO] testing digest-buffer-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate digest-buffer 0.3.1 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate digest-buffer 0.3.1 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 digest-buffer 0.3.1
[INFO] finished tweaking crates.io crate digest-buffer 0.3.1
[INFO] tweaked toml for crates.io crate digest-buffer 0.3.1 written to /workspace/builds/worker-103/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byte-tools v0.1.3
[INFO] [stderr]   Downloaded generic-array v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 7641ea355afe292765b8f258f23d79dc2c83485551714c40e29cc6da3eca5fa6
[INFO] running `Command { std: "docker" "start" "-a" "7641ea355afe292765b8f258f23d79dc2c83485551714c40e29cc6da3eca5fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7641ea355afe292765b8f258f23d79dc2c83485551714c40e29cc6da3eca5fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7641ea355afe292765b8f258f23d79dc2c83485551714c40e29cc6da3eca5fa6", kill_on_drop: false }`
[INFO] [stdout] 7641ea355afe292765b8f258f23d79dc2c83485551714c40e29cc6da3eca5fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 19e898647e02baea566c41c5e3033de81cb8c5f49272033f5f97cdcbba08d730
[INFO] running `Command { std: "docker" "start" "-a" "19e898647e02baea566c41c5e3033de81cb8c5f49272033f5f97cdcbba08d730", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byte-tools v0.1.3
[INFO] [stderr]    Compiling generic-array v0.7.3
[INFO] [stderr]    Compiling digest-buffer v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "19e898647e02baea566c41c5e3033de81cb8c5f49272033f5f97cdcbba08d730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e898647e02baea566c41c5e3033de81cb8c5f49272033f5f97cdcbba08d730", kill_on_drop: false }`
[INFO] [stdout] 19e898647e02baea566c41c5e3033de81cb8c5f49272033f5f97cdcbba08d730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 0fbcbbcc2125bad0bf93c7bcf8f8cf186a0af81db8167bdb509800bef42f2034
[INFO] running `Command { std: "docker" "start" "-a" "0fbcbbcc2125bad0bf93c7bcf8f8cf186a0af81db8167bdb509800bef42f2034", kill_on_drop: false }`
[INFO] [stderr]    Compiling digest-buffer v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "0fbcbbcc2125bad0bf93c7bcf8f8cf186a0af81db8167bdb509800bef42f2034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fbcbbcc2125bad0bf93c7bcf8f8cf186a0af81db8167bdb509800bef42f2034", kill_on_drop: false }`
[INFO] [stdout] 0fbcbbcc2125bad0bf93c7bcf8f8cf186a0af81db8167bdb509800bef42f2034
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] d426832256bc8ab621a65147a77d8f793d8883efd813fef10dc8ae48c487cc35
[INFO] running `Command { std: "docker" "start" "-a" "d426832256bc8ab621a65147a77d8f793d8883efd813fef10dc8ae48c487cc35", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/digest_buffer-3142641ae3d3ad96)
[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 digest-buffer
[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" "d426832256bc8ab621a65147a77d8f793d8883efd813fef10dc8ae48c487cc35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d426832256bc8ab621a65147a77d8f793d8883efd813fef10dc8ae48c487cc35", kill_on_drop: false }`
[INFO] [stdout] d426832256bc8ab621a65147a77d8f793d8883efd813fef10dc8ae48c487cc35