[INFO] fetching crate rscan 0.2.1...
[INFO] testing rscan-0.2.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate rscan 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rscan 0.2.1
[INFO] finished tweaking crates.io crate rscan 0.2.1
[INFO] tweaked toml for crates.io crate rscan 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rscan 0.2.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rscan 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_sys v0.31.0
[INFO] [stderr]   Downloaded no-std-net v0.6.0
[INFO] [stderr]   Downloaded pnet_base v0.31.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.31.0
[INFO] [stderr]   Downloaded ipnetwork v0.19.0
[INFO] [stderr]   Downloaded pnet_transport v0.31.0
[INFO] [stderr]   Downloaded pnet v0.31.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.2
[INFO] [stderr]   Downloaded pnet_macros v0.31.0
[INFO] [stderr]   Downloaded serde v1.0.140
[INFO] [stderr]   Downloaded pnet_datalink v0.31.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.40
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded pnet_packet v0.31.0
[INFO] [stderr]   Downloaded getrandom v0.2.7
[INFO] [stderr]   Downloaded rand_core v0.6.3
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded syn v1.0.98
[INFO] [stderr]   Downloaded libc v0.2.126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb01af7e3b52696d36ede2cf847283fff1076de64d2e2f462a579e7877e26197
[INFO] running `Command { std: "docker" "start" "-a" "fb01af7e3b52696d36ede2cf847283fff1076de64d2e2f462a579e7877e26197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb01af7e3b52696d36ede2cf847283fff1076de64d2e2f462a579e7877e26197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb01af7e3b52696d36ede2cf847283fff1076de64d2e2f462a579e7877e26197", kill_on_drop: false }`
[INFO] [stdout] fb01af7e3b52696d36ede2cf847283fff1076de64d2e2f462a579e7877e26197
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b1f3b6b2e6925012413ed05f194f24d3beec8fd287ded1d3e7962d2ecbac8072
[INFO] running `Command { std: "docker" "start" "-a" "b1f3b6b2e6925012413ed05f194f24d3beec8fd287ded1d3e7962d2ecbac8072", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling no-std-net v0.6.0
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling pnet v0.31.0
[INFO] [stderr]    Compiling pnet_base v0.31.0
[INFO] [stderr]    Compiling pnet_macros_support v0.31.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling pnet_sys v0.31.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling ipnetwork v0.19.0
[INFO] [stderr]    Compiling pnet_datalink v0.31.0
[INFO] [stderr]    Compiling pnet_macros v0.31.0
[INFO] [stderr]    Compiling pnet_packet v0.31.0
[INFO] [stderr]    Compiling pnet_transport v0.31.0
[INFO] [stderr]    Compiling rscan v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:169:11
[INFO] [stdout]     |
[INFO] [stdout] 169 |     buff: &mut [u8],
[INFO] [stdout]     |           ^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] ...
[INFO] [stdout] 174 | ) -> MutableTcpPacket {
[INFO] [stdout]     |      ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 174 | ) -> MutableTcpPacket<'_> {
[INFO] [stdout]     |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `Command { std: "docker" "inspect" "b1f3b6b2e6925012413ed05f194f24d3beec8fd287ded1d3e7962d2ecbac8072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f3b6b2e6925012413ed05f194f24d3beec8fd287ded1d3e7962d2ecbac8072", kill_on_drop: false }`
[INFO] [stdout] b1f3b6b2e6925012413ed05f194f24d3beec8fd287ded1d3e7962d2ecbac8072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 67eedf14d42258663117d2e8b098dc1f43449deb85f2211ac5d381f4ecf6d1c2
[INFO] running `Command { std: "docker" "start" "-a" "67eedf14d42258663117d2e8b098dc1f43449deb85f2211ac5d381f4ecf6d1c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rscan v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:169:11
[INFO] [stdout]     |
[INFO] [stdout] 169 |     buff: &mut [u8],
[INFO] [stdout]     |           ^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] ...
[INFO] [stdout] 174 | ) -> MutableTcpPacket {
[INFO] [stdout]     |      ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 174 | ) -> MutableTcpPacket<'_> {
[INFO] [stdout]     |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "67eedf14d42258663117d2e8b098dc1f43449deb85f2211ac5d381f4ecf6d1c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67eedf14d42258663117d2e8b098dc1f43449deb85f2211ac5d381f4ecf6d1c2", kill_on_drop: false }`
[INFO] [stdout] 67eedf14d42258663117d2e8b098dc1f43449deb85f2211ac5d381f4ecf6d1c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a6fd968b0120eb95cf3ba73274f2af9ab62e7255c7e1007829b048d3d13dc0c7
[INFO] running `Command { std: "docker" "start" "-a" "a6fd968b0120eb95cf3ba73274f2af9ab62e7255c7e1007829b048d3d13dc0c7", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/main.rs:169:11
[INFO] [stderr]     |
[INFO] [stderr] 169 |     buff: &mut [u8],
[INFO] [stderr]     |           ^^^^^^^^^ this lifetime flows to the output
[INFO] [stderr] ...
[INFO] [stderr] 174 | ) -> MutableTcpPacket {
[INFO] [stderr]     |      ---------------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 174 | ) -> MutableTcpPacket<'_> {
[INFO] [stderr]     |                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rscan` (bin "rscan" test) generated 1 warning (run `cargo fix --bin "rscan" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rscan-ed2b1224bb4835ea)
[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" "a6fd968b0120eb95cf3ba73274f2af9ab62e7255c7e1007829b048d3d13dc0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6fd968b0120eb95cf3ba73274f2af9ab62e7255c7e1007829b048d3d13dc0c7", kill_on_drop: false }`
[INFO] [stdout] a6fd968b0120eb95cf3ba73274f2af9ab62e7255c7e1007829b048d3d13dc0c7