[INFO] cloning repository https://github.com/chefsalim/zmqtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chefsalim/zmqtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchefsalim%2Fzmqtest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchefsalim%2Fzmqtest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f22da17aaea7dd398c77544103cffc7805b6fd44
[INFO] testing chefsalim/zmqtest against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchefsalim%2Fzmqtest" "/workspace/builds/worker-33/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-33/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chefsalim/zmqtest on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chefsalim/zmqtest
[INFO] finished tweaking git repo https://github.com/chefsalim/zmqtest
[INFO] tweaked toml for git repo https://github.com/chefsalim/zmqtest written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate git repo https://github.com/chefsalim/zmqtest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/erickt/rust-zmq`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8169209cad5aea44fde20b261e2b42004ea8d8197f4e19bded9f0dd3038618e3
[INFO] running `Command { std: "docker" "start" "-a" "8169209cad5aea44fde20b261e2b42004ea8d8197f4e19bded9f0dd3038618e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8169209cad5aea44fde20b261e2b42004ea8d8197f4e19bded9f0dd3038618e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8169209cad5aea44fde20b261e2b42004ea8d8197f4e19bded9f0dd3038618e3", kill_on_drop: false }`
[INFO] [stdout] 8169209cad5aea44fde20b261e2b42004ea8d8197f4e19bded9f0dd3038618e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfb767dae7896e66cb50e76ace82311c431d5d3f67b4798378fa747b36a97a23
[INFO] running `Command { std: "docker" "start" "-a" "bfb767dae7896e66cb50e76ace82311c431d5d3f67b4798378fa747b36a97a23", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling zmq-sys v0.8.1 (https://github.com/erickt/rust-zmq?branch=release/v0.8#63b4ea32)
[INFO] [stderr]    Compiling zmq v0.8.1 (https://github.com/erickt/rust-zmq?branch=release/v0.8#63b4ea32)
[INFO] [stderr]    Compiling zmqtest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut rng = rand::thread_rng();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 41s
[INFO] running `Command { std: "docker" "inspect" "bfb767dae7896e66cb50e76ace82311c431d5d3f67b4798378fa747b36a97a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb767dae7896e66cb50e76ace82311c431d5d3f67b4798378fa747b36a97a23", kill_on_drop: false }`
[INFO] [stdout] bfb767dae7896e66cb50e76ace82311c431d5d3f67b4798378fa747b36a97a23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a315f89b0edb389b0f24c95f2fd919c680e1639c022374b53f594132ba3b2c7f
[INFO] running `Command { std: "docker" "start" "-a" "a315f89b0edb389b0f24c95f2fd919c680e1639c022374b53f594132ba3b2c7f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling zmqtest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut rng = rand::thread_rng();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "a315f89b0edb389b0f24c95f2fd919c680e1639c022374b53f594132ba3b2c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a315f89b0edb389b0f24c95f2fd919c680e1639c022374b53f594132ba3b2c7f", kill_on_drop: false }`
[INFO] [stdout] a315f89b0edb389b0f24c95f2fd919c680e1639c022374b53f594132ba3b2c7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0fefa570e613ad5ca41c30d2dd9812f6c94841540bb4da6a87ed824d411dbcc
[INFO] running `Command { std: "docker" "start" "-a" "e0fefa570e613ad5ca41c30d2dd9812f6c94841540bb4da6a87ed824d411dbcc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut rng = rand::thread_rng();
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut rng = rand::thread_rng();
[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: `zmqtest` (bin "zmqtest" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.45s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zmqtest-25b9d39eb78842bf)
[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" "e0fefa570e613ad5ca41c30d2dd9812f6c94841540bb4da6a87ed824d411dbcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0fefa570e613ad5ca41c30d2dd9812f6c94841540bb4da6a87ed824d411dbcc", kill_on_drop: false }`
[INFO] [stdout] e0fefa570e613ad5ca41c30d2dd9812f6c94841540bb4da6a87ed824d411dbcc