[INFO] fetching crate mem_storage 0.1.1...
[INFO] testing mem_storage-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mem_storage 0.1.1 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate mem_storage 0.1.1 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 mem_storage 0.1.1
[INFO] finished tweaking crates.io crate mem_storage 0.1.1
[INFO] tweaked toml for crates.io crate mem_storage 0.1.1 written to /workspace/builds/worker-59/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 0948e70e70e98c0127ef94fe131f31c77e6bcbdc14308d60c45fd20fbec1b10f
[INFO] running `Command { std: "docker" "start" "-a" "0948e70e70e98c0127ef94fe131f31c77e6bcbdc14308d60c45fd20fbec1b10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0948e70e70e98c0127ef94fe131f31c77e6bcbdc14308d60c45fd20fbec1b10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0948e70e70e98c0127ef94fe131f31c77e6bcbdc14308d60c45fd20fbec1b10f", kill_on_drop: false }`
[INFO] [stdout] 0948e70e70e98c0127ef94fe131f31c77e6bcbdc14308d60c45fd20fbec1b10f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] fc28768ebd04c7d7deb9219448fa84096b3745ec03ec28c93a65b1f932a8e9ab
[INFO] running `Command { std: "docker" "start" "-a" "fc28768ebd04c7d7deb9219448fa84096b3745ec03ec28c93a65b1f932a8e9ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling mem_storage v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "fc28768ebd04c7d7deb9219448fa84096b3745ec03ec28c93a65b1f932a8e9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc28768ebd04c7d7deb9219448fa84096b3745ec03ec28c93a65b1f932a8e9ab", kill_on_drop: false }`
[INFO] [stdout] fc28768ebd04c7d7deb9219448fa84096b3745ec03ec28c93a65b1f932a8e9ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 731e2ea1a78a57b419d1659c62acc8d41e31468698152ffb63227e63a0f8d0b1
[INFO] running `Command { std: "docker" "start" "-a" "731e2ea1a78a57b419d1659c62acc8d41e31468698152ffb63227e63a0f8d0b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mem_storage v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "731e2ea1a78a57b419d1659c62acc8d41e31468698152ffb63227e63a0f8d0b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731e2ea1a78a57b419d1659c62acc8d41e31468698152ffb63227e63a0f8d0b1", kill_on_drop: false }`
[INFO] [stdout] 731e2ea1a78a57b419d1659c62acc8d41e31468698152ffb63227e63a0f8d0b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 142b4831fa823955cfc499ab203dba8f002f733a18c2c216b350d716bc8a41d6
[INFO] running `Command { std: "docker" "start" "-a" "142b4831fa823955cfc499ab203dba8f002f733a18c2c216b350d716bc8a41d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.66s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mem_storage-a96e2ea2f1b0657f)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-ba72f8c9b483a60f)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_write_le ... ok
[INFO] [stdout] test test_read_be ... ok
[INFO] [stdout] test test_read_le ... ok
[INFO] [stdout] test test_write_be ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mem_storage
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 17) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "142b4831fa823955cfc499ab203dba8f002f733a18c2c216b350d716bc8a41d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142b4831fa823955cfc499ab203dba8f002f733a18c2c216b350d716bc8a41d6", kill_on_drop: false }`
[INFO] [stdout] 142b4831fa823955cfc499ab203dba8f002f733a18c2c216b350d716bc8a41d6