[INFO] cloning repository https://github.com/hoodie/peerchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hoodie/peerchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoodie%2Fpeerchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoodie%2Fpeerchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f201851cdb0bd7d28831ee9cb58213f72f2b8ee7
[INFO] testing hoodie/peerchat against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoodie%2Fpeerchat" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hoodie/peerchat on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hoodie/peerchat
[INFO] finished tweaking git repo https://github.com/hoodie/peerchat
[INFO] tweaked toml for git repo https://github.com/hoodie/peerchat written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/hoodie/peerchat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded serde_derive v1.0.21
[INFO] [stderr]   Downloaded serde v1.0.21
[INFO] [stderr]   Downloaded serde_json v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] 367904c892efb75c2cf01af89f3b564718ce53f3bcd13d4fbd4e07caf90e684f
[INFO] running `Command { std: "docker" "start" "-a" "367904c892efb75c2cf01af89f3b564718ce53f3bcd13d4fbd4e07caf90e684f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "367904c892efb75c2cf01af89f3b564718ce53f3bcd13d4fbd4e07caf90e684f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "367904c892efb75c2cf01af89f3b564718ce53f3bcd13d4fbd4e07caf90e684f", kill_on_drop: false }`
[INFO] [stdout] 367904c892efb75c2cf01af89f3b564718ce53f3bcd13d4fbd4e07caf90e684f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af0812a4b672d7e3a7f463556186acb5bc8c3ee2fe054f6b5c926a82bde51894
[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" "af0812a4b672d7e3a7f463556186acb5bc8c3ee2fe054f6b5c926a82bde51894", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling serde v1.0.21
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.6
[INFO] [stderr]    Compiling peerchat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.36s
[INFO] running `Command { std: "docker" "inspect" "af0812a4b672d7e3a7f463556186acb5bc8c3ee2fe054f6b5c926a82bde51894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0812a4b672d7e3a7f463556186acb5bc8c3ee2fe054f6b5c926a82bde51894", kill_on_drop: false }`
[INFO] [stdout] af0812a4b672d7e3a7f463556186acb5bc8c3ee2fe054f6b5c926a82bde51894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9bbe5e398c33d5f73266451b5bee5c82e58eb2841732c3bdd7c75271040a0bf
[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" "b9bbe5e398c33d5f73266451b5bee5c82e58eb2841732c3bdd7c75271040a0bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling peerchat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> examples/server.rs:68:30
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Message::Message{ref name, ref payload, address} => {
[INFO] [stdout]    |                              ^^^^^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> examples/server.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn broadcast(msg: &str, receivers: &[SocketAddr]) {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receivers`
[INFO] [stdout]   --> examples/server.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn broadcast(msg: &str, receivers: &[SocketAddr]) {
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receivers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `broadcast`
[INFO] [stdout]   --> examples/server.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn broadcast(msg: &str, receivers: &[SocketAddr]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.73s
[INFO] running `Command { std: "docker" "inspect" "b9bbe5e398c33d5f73266451b5bee5c82e58eb2841732c3bdd7c75271040a0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bbe5e398c33d5f73266451b5bee5c82e58eb2841732c3bdd7c75271040a0bf", kill_on_drop: false }`
[INFO] [stdout] b9bbe5e398c33d5f73266451b5bee5c82e58eb2841732c3bdd7c75271040a0bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] 5fc04ad69df91a847fa06374ee1d17f57336a5b3b65c52c5f324ee04ae84110c
[INFO] running `Command { std: "docker" "start" "-a" "5fc04ad69df91a847fa06374ee1d17f57336a5b3b65c52c5f324ee04ae84110c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> examples/server.rs:68:30
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 68 |             Message::Message{ref name, ref payload, address} => {
[INFO] [stdout] 
[INFO] [stderr]    |                              ^^^^^^^^ help: try ignoring the field: `name: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> examples/server.rs:81:14
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn broadcast(msg: &str, receivers: &[SocketAddr]) {
[INFO] [stderr]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receivers`
[INFO] [stderr]   --> examples/server.rs:81:25
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn broadcast(msg: &str, receivers: &[SocketAddr]) {
[INFO] [stderr]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receivers`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `broadcast`
[INFO] [stderr]   --> examples/server.rs:81:4
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn broadcast(msg: &str, receivers: &[SocketAddr]) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/peerchat-a0642d53cb2b4df4)
[INFO] [stderr]    Doc-tests peerchat
[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" "5fc04ad69df91a847fa06374ee1d17f57336a5b3b65c52c5f324ee04ae84110c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc04ad69df91a847fa06374ee1d17f57336a5b3b65c52c5f324ee04ae84110c", kill_on_drop: false }`
[INFO] [stdout] 5fc04ad69df91a847fa06374ee1d17f57336a5b3b65c52c5f324ee04ae84110c