[INFO] cloning repository https://github.com/longshorej/multicaster
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/longshorej/multicaster" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongshorej%2Fmulticaster", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongshorej%2Fmulticaster'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e51b6801f260c6ef8d2b211c1ee37da0e48ba7d1
[INFO] checking longshorej/multicaster against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongshorej%2Fmulticaster" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/longshorej/multicaster on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/longshorej/multicaster
[INFO] finished tweaking git repo https://github.com/longshorej/multicaster
[INFO] tweaked toml for git repo https://github.com/longshorej/multicaster written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/longshorej/multicaster already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", 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] 660f5cded42840e2c9a8a82e452301ca77016c9c837af5f928f61f3c902a0c8b
[INFO] running `Command { std: "docker" "start" "-a" "660f5cded42840e2c9a8a82e452301ca77016c9c837af5f928f61f3c902a0c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "660f5cded42840e2c9a8a82e452301ca77016c9c837af5f928f61f3c902a0c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660f5cded42840e2c9a8a82e452301ca77016c9c837af5f928f61f3c902a0c8b", kill_on_drop: false }`
[INFO] [stdout] 660f5cded42840e2c9a8a82e452301ca77016c9c837af5f928f61f3c902a0c8b
[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=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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12a2a136a020e908cc4b2e2a51f00c3b7feb2d01d541432d209f063e934584eb
[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" "12a2a136a020e908cc4b2e2a51f00c3b7feb2d01d541432d209f063e934584eb", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking bytes v0.4.7
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.3
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking multicaster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/main.rs:92:32
[INFO] [stdout]    |
[INFO] [stdout] 92 |             if let Some((size, peer)) = self.data {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> src/main.rs:92:32
[INFO] [stdout]    |
[INFO] [stdout] 92 |             if let Some((size, peer)) = self.data {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 22.65s
[INFO] running `Command { std: "docker" "inspect" "12a2a136a020e908cc4b2e2a51f00c3b7feb2d01d541432d209f063e934584eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a2a136a020e908cc4b2e2a51f00c3b7feb2d01d541432d209f063e934584eb", kill_on_drop: false }`
[INFO] [stdout] 12a2a136a020e908cc4b2e2a51f00c3b7feb2d01d541432d209f063e934584eb