[INFO] fetching crate mlzutil 0.2.1...
[INFO] testing mlzutil-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mlzutil 0.2.1 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate mlzutil 0.2.1 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 mlzutil 0.2.1
[INFO] finished tweaking crates.io crate mlzutil 0.2.1
[INFO] tweaked toml for crates.io crate mlzutil 0.2.1 written to /workspace/builds/worker-46/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]  Downloading crates ...
[INFO] [stderr]   Downloaded dns-lookup v1.0.8
[INFO] [stderr]   Downloaded systemstat v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 032266024c4235e77ff34ce62e143c657fb594b7a33ddd6353d9d45b45b57271
[INFO] running `Command { std: "docker" "start" "-a" "032266024c4235e77ff34ce62e143c657fb594b7a33ddd6353d9d45b45b57271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "032266024c4235e77ff34ce62e143c657fb594b7a33ddd6353d9d45b45b57271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032266024c4235e77ff34ce62e143c657fb594b7a33ddd6353d9d45b45b57271", kill_on_drop: false }`
[INFO] [stdout] 032266024c4235e77ff34ce62e143c657fb594b7a33ddd6353d9d45b45b57271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] b2f4b6661a5622ac93989d9f6ebdfcd8ab9e993dd63687a66c348a5cdf033249
[INFO] running `Command { std: "docker" "start" "-a" "b2f4b6661a5622ac93989d9f6ebdfcd8ab9e993dd63687a66c348a5cdf033249", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling bytesize v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling dns-lookup v1.0.8
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling systemstat v0.1.5
[INFO] [stderr]    Compiling mlzutil v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.44s
[INFO] running `Command { std: "docker" "inspect" "b2f4b6661a5622ac93989d9f6ebdfcd8ab9e993dd63687a66c348a5cdf033249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2f4b6661a5622ac93989d9f6ebdfcd8ab9e993dd63687a66c348a5cdf033249", kill_on_drop: false }`
[INFO] [stdout] b2f4b6661a5622ac93989d9f6ebdfcd8ab9e993dd63687a66c348a5cdf033249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 62727f2fba060f3a902126b37d81f739da7f51e1a341fdb019523f149b0cd5c9
[INFO] running `Command { std: "docker" "start" "-a" "62727f2fba060f3a902126b37d81f739da7f51e1a341fdb019523f149b0cd5c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling mlzutil v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "62727f2fba060f3a902126b37d81f739da7f51e1a341fdb019523f149b0cd5c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62727f2fba060f3a902126b37d81f739da7f51e1a341fdb019523f149b0cd5c9", kill_on_drop: false }`
[INFO] [stdout] 62727f2fba060f3a902126b37d81f739da7f51e1a341fdb019523f149b0cd5c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 4dd792be7865f540073fa3431b76d57403d1a85aa985139c04826d0c44081931
[INFO] running `Command { std: "docker" "start" "-a" "4dd792be7865f540073fa3431b76d57403d1a85aa985139c04826d0c44081931", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mlzutil-2cabef5d8fc5ff7c)
[INFO] [stderr]    Doc-tests mlzutil
[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] [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" "4dd792be7865f540073fa3431b76d57403d1a85aa985139c04826d0c44081931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dd792be7865f540073fa3431b76d57403d1a85aa985139c04826d0c44081931", kill_on_drop: false }`
[INFO] [stdout] 4dd792be7865f540073fa3431b76d57403d1a85aa985139c04826d0c44081931