[INFO] fetching crate gossip-peer 0.1.0...
[INFO] testing gossip-peer-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate gossip-peer 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate gossip-peer 0.1.0
[INFO] finished tweaking crates.io crate gossip-peer 0.1.0
[INFO] tweaked toml for crates.io crate gossip-peer 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gossip-peer 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded borrowed-byte-buffer v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3f4c62ab4ee48012a04bfa9f6f5f8166b9271b61a69dc2e3bdfdebe8a804ef16
[INFO] running `Command { std: "docker" "start" "-a" "3f4c62ab4ee48012a04bfa9f6f5f8166b9271b61a69dc2e3bdfdebe8a804ef16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f4c62ab4ee48012a04bfa9f6f5f8166b9271b61a69dc2e3bdfdebe8a804ef16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f4c62ab4ee48012a04bfa9f6f5f8166b9271b61a69dc2e3bdfdebe8a804ef16", kill_on_drop: false }`
[INFO] [stdout] 3f4c62ab4ee48012a04bfa9f6f5f8166b9271b61a69dc2e3bdfdebe8a804ef16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 796edc0b3b883a71b165de35445693facb6419090122959f652e9bb4a86d1a55
[INFO] running `Command { std: "docker" "start" "-a" "796edc0b3b883a71b165de35445693facb6419090122959f652e9bb4a86d1a55", kill_on_drop: false }`
[INFO] [stderr]    Compiling borrowed-byte-buffer v0.1.1
[INFO] [stderr]    Compiling gossip-peer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:52
[INFO] [stdout]    |
[INFO] [stdout] 77 |                         peers.iter_mut().for_each(|mut peer| {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "796edc0b3b883a71b165de35445693facb6419090122959f652e9bb4a86d1a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796edc0b3b883a71b165de35445693facb6419090122959f652e9bb4a86d1a55", kill_on_drop: false }`
[INFO] [stdout] 796edc0b3b883a71b165de35445693facb6419090122959f652e9bb4a86d1a55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9877db274da3371c4e949661968066e3692c97bdb5936bb4a1cc3a61906dc5ce
[INFO] running `Command { std: "docker" "start" "-a" "9877db274da3371c4e949661968066e3692c97bdb5936bb4a1cc3a61906dc5ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling gossip-peer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:52
[INFO] [stdout]    |
[INFO] [stdout] 77 |                         peers.iter_mut().for_each(|mut peer| {
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "9877db274da3371c4e949661968066e3692c97bdb5936bb4a1cc3a61906dc5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9877db274da3371c4e949661968066e3692c97bdb5936bb4a1cc3a61906dc5ce", kill_on_drop: false }`
[INFO] [stdout] 9877db274da3371c4e949661968066e3692c97bdb5936bb4a1cc3a61906dc5ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1c4b6a1c3365364e9c3212132323203da82f61ff06ff72256b5847dd6b30fec3
[INFO] running `Command { std: "docker" "start" "-a" "1c4b6a1c3365364e9c3212132323203da82f61ff06ff72256b5847dd6b30fec3", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:77:52
[INFO] [stderr]    |
[INFO] [stderr] 77 |                         peers.iter_mut().for_each(|mut peer| {
[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: `gossip-peer` (bin "gossip-peer" test) generated 1 warning (run `cargo fix --bin "gossip-peer" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/gossip_peer-519c680cc43b410a)
[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" "1c4b6a1c3365364e9c3212132323203da82f61ff06ff72256b5847dd6b30fec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4b6a1c3365364e9c3212132323203da82f61ff06ff72256b5847dd6b30fec3", kill_on_drop: false }`
[INFO] [stdout] 1c4b6a1c3365364e9c3212132323203da82f61ff06ff72256b5847dd6b30fec3