[INFO] fetching crate nsutils 0.0.5...
[INFO] testing nsutils-0.0.5 against 1.63.0 for beta-1.64-2
[INFO] extracting crate nsutils 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nsutils 0.0.5 on toolchain 1.63.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.63.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nsutils 0.0.5
[INFO] finished tweaking crates.io crate nsutils 0.0.5
[INFO] tweaked toml for crates.io crate nsutils 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.63.0" "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" "+1.63.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] [stderr]   Downloaded byteorder v0.5.3
[INFO] [stderr]   Downloaded nom v1.2.4
[INFO] [stderr]   Downloaded unshare v0.1.15
[INFO] [stderr]   Downloaded nix v0.4.3
[INFO] [stderr]   Downloaded procinfo v0.3.1
[INFO] [stderr]   Downloaded text_io v0.1.12
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded libc v0.2.131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+1.63.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ec13cf3cf9d68d20a3f2f06ffc38a507795e35c35ca3badb8c8f4af2c3a60e8
[INFO] running `Command { std: "docker" "start" "-a" "3ec13cf3cf9d68d20a3f2f06ffc38a507795e35c35ca3badb8c8f4af2c3a60e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec13cf3cf9d68d20a3f2f06ffc38a507795e35c35ca3badb8c8f4af2c3a60e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec13cf3cf9d68d20a3f2f06ffc38a507795e35c35ca3badb8c8f4af2c3a60e8", kill_on_drop: false }`
[INFO] [stdout] 3ec13cf3cf9d68d20a3f2f06ffc38a507795e35c35ca3badb8c8f4af2c3a60e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+1.63.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 078b41a4861fe110d85ae0872f969de3cb5548ea4a29f6cd9c4718c97032feb0
[INFO] running `Command { std: "docker" "start" "-a" "078b41a4861fe110d85ae0872f969de3cb5548ea4a29f6cd9c4718c97032feb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling text_io v0.1.12
[INFO] [stderr]    Compiling nix v0.4.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling procinfo v0.3.1
[INFO] [stderr]    Compiling unshare v0.1.15
[INFO] [stderr]    Compiling nsutils v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nsutils.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut listns = result_nslist.get_mut(&nsid).unwrap();
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.72s
[INFO] running `Command { std: "docker" "inspect" "078b41a4861fe110d85ae0872f969de3cb5548ea4a29f6cd9c4718c97032feb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "078b41a4861fe110d85ae0872f969de3cb5548ea4a29f6cd9c4718c97032feb0", kill_on_drop: false }`
[INFO] [stdout] 078b41a4861fe110d85ae0872f969de3cb5548ea4a29f6cd9c4718c97032feb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+1.63.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 356bca3f7628b8c3b36c9e39077d694fb983b8aae3946a947f8a3ac5487237c8
[INFO] running `Command { std: "docker" "start" "-a" "356bca3f7628b8c3b36c9e39077d694fb983b8aae3946a947f8a3ac5487237c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling nsutils v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nsutils.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut listns = result_nslist.get_mut(&nsid).unwrap();
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "356bca3f7628b8c3b36c9e39077d694fb983b8aae3946a947f8a3ac5487237c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "356bca3f7628b8c3b36c9e39077d694fb983b8aae3946a947f8a3ac5487237c8", kill_on_drop: false }`
[INFO] [stdout] 356bca3f7628b8c3b36c9e39077d694fb983b8aae3946a947f8a3ac5487237c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+1.63.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4ed030246387abf9ea187438a1bb1776de1e1f94d1c35f189688a549dad787e
[INFO] running `Command { std: "docker" "start" "-a" "c4ed030246387abf9ea187438a1bb1776de1e1f94d1c35f189688a549dad787e", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/nsutils.rs:61:21
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 let mut listns = result_nslist.get_mut(&nsid).unwrap();
[INFO] [stderr]    |                     ----^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nsutils` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nsutils-816b061ccaace81e)
[INFO] [stdout] running 1 test
[INFO] [stdout] test nsutils::tests::test_statns_to_nslist ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c4ed030246387abf9ea187438a1bb1776de1e1f94d1c35f189688a549dad787e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4ed030246387abf9ea187438a1bb1776de1e1f94d1c35f189688a549dad787e", kill_on_drop: false }`
[INFO] [stdout] c4ed030246387abf9ea187438a1bb1776de1e1f94d1c35f189688a549dad787e