[INFO] updating cached repository https://github.com/chefsalim/zmqtest
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f22da17aaea7dd398c77544103cffc7805b6fd44
[INFO] testing chefsalim/zmqtest against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchefsalim%2Fzmqtest" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chefsalim/zmqtest on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/chefsalim/zmqtest already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] bd01e1f452adc47f7c9d59aeb7782066be1faba05bfb21d3ad311d48b647d97b
[INFO] running `"docker" "start" "-a" "bd01e1f452adc47f7c9d59aeb7782066be1faba05bfb21d3ad311d48b647d97b"`
[INFO] [stderr]    Compiling error-chain v0.7.2
[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] [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: consider prefixing 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]     Finished dev [unoptimized + debuginfo] target(s) in 7.07s
[INFO] running `"docker" "inspect" "bd01e1f452adc47f7c9d59aeb7782066be1faba05bfb21d3ad311d48b647d97b"`
[INFO] running `"docker" "rm" "-f" "bd01e1f452adc47f7c9d59aeb7782066be1faba05bfb21d3ad311d48b647d97b"`
[INFO] [stdout] bd01e1f452adc47f7c9d59aeb7782066be1faba05bfb21d3ad311d48b647d97b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a569f90c69f25a6e3260927a94a24e49c3835d4b96ef9b03d80fb356d90da7ff
[INFO] running `"docker" "start" "-a" "a569f90c69f25a6e3260927a94a24e49c3835d4b96ef9b03d80fb356d90da7ff"`
[INFO] [stderr]    Compiling zmqtest v0.1.0 (/opt/rustwide/workdir)
[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: consider prefixing 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "a569f90c69f25a6e3260927a94a24e49c3835d4b96ef9b03d80fb356d90da7ff"`
[INFO] running `"docker" "rm" "-f" "a569f90c69f25a6e3260927a94a24e49c3835d4b96ef9b03d80fb356d90da7ff"`
[INFO] [stdout] a569f90c69f25a6e3260927a94a24e49c3835d4b96ef9b03d80fb356d90da7ff
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 14a625a94c45db8b0993051af64cc339ad77468144bacfa420d5012dbd659c86
[INFO] running `"docker" "start" "-a" "14a625a94c45db8b0993051af64cc339ad77468144bacfa420d5012dbd659c86"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zmqtest-b322ceac4d69dce7
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "14a625a94c45db8b0993051af64cc339ad77468144bacfa420d5012dbd659c86"`
[INFO] running `"docker" "rm" "-f" "14a625a94c45db8b0993051af64cc339ad77468144bacfa420d5012dbd659c86"`
[INFO] [stdout] 14a625a94c45db8b0993051af64cc339ad77468144bacfa420d5012dbd659c86