[INFO] fetching crate io_utils 0.2.6...
[INFO] testing io_utils-0.2.6 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate io_utils 0.2.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate io_utils 0.2.6 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io_utils 0.2.6
[INFO] finished tweaking crates.io crate io_utils 0.2.6
[INFO] tweaked toml for crates.io crate io_utils 0.2.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string_utils v0.1.1
[INFO] [stderr]   Downloaded vector_utils v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1d13dc93d310c00a16e82b9b8d8ca9fcfd0a580df74a52a9d73a03564e0f642
[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" "c1d13dc93d310c00a16e82b9b8d8ca9fcfd0a580df74a52a9d73a03564e0f642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1d13dc93d310c00a16e82b9b8d8ca9fcfd0a580df74a52a9d73a03564e0f642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1d13dc93d310c00a16e82b9b8d8ca9fcfd0a580df74a52a9d73a03564e0f642", kill_on_drop: false }`
[INFO] [stdout] c1d13dc93d310c00a16e82b9b8d8ca9fcfd0a580df74a52a9d73a03564e0f642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71be180696ba01e7d31fd777fb3c4ef4adf607d873471c183450db0fdd9606f4
[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" "71be180696ba01e7d31fd777fb3c4ef4adf607d873471c183450db0fdd9606f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling permutation v0.2.5
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.0
[INFO] [stderr]    Compiling vector_utils v0.1.3
[INFO] [stderr]    Compiling string_utils v0.1.1
[INFO] [stderr]    Compiling flate2 v1.0.16
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling lz4 v1.23.2
[INFO] [stderr]    Compiling io_utils v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.95s
[INFO] running `Command { std: "docker" "inspect" "71be180696ba01e7d31fd777fb3c4ef4adf607d873471c183450db0fdd9606f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71be180696ba01e7d31fd777fb3c4ef4adf607d873471c183450db0fdd9606f4", kill_on_drop: false }`
[INFO] [stdout] 71be180696ba01e7d31fd777fb3c4ef4adf607d873471c183450db0fdd9606f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d2b42cb9c7745359b054c437a4e1698b293412102a06e9cb4130358ee2bd241
[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" "7d2b42cb9c7745359b054c437a4e1698b293412102a06e9cb4130358ee2bd241", kill_on_drop: false }`
[INFO] [stderr]    Compiling io_utils v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "7d2b42cb9c7745359b054c437a4e1698b293412102a06e9cb4130358ee2bd241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2b42cb9c7745359b054c437a4e1698b293412102a06e9cb4130358ee2bd241", kill_on_drop: false }`
[INFO] [stdout] 7d2b42cb9c7745359b054c437a4e1698b293412102a06e9cb4130358ee2bd241
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", 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] 43451d1eed93d36321b881334aa89bf47da9ff3e602698bb95a05c8e2e135bef
[INFO] running `Command { std: "docker" "start" "-a" "43451d1eed93d36321b881334aa89bf47da9ff3e602698bb95a05c8e2e135bef", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/io_utils-7c77899b9a996114
[INFO] [stderr]    Doc-tests io_utils
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "43451d1eed93d36321b881334aa89bf47da9ff3e602698bb95a05c8e2e135bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43451d1eed93d36321b881334aa89bf47da9ff3e602698bb95a05c8e2e135bef", kill_on_drop: false }`
[INFO] [stdout] 43451d1eed93d36321b881334aa89bf47da9ff3e602698bb95a05c8e2e135bef