[INFO] updating cached repository https://github.com/twaters/mq_arbiter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87dbdd56c40c40176561cb80f1109009300ef7dc
[INFO] testing twaters/mq_arbiter against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwaters%2Fmq_arbiter" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twaters/mq_arbiter on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twaters/mq_arbiter
[INFO] finished tweaking git repo https://github.com/twaters/mq_arbiter
[INFO] tweaked toml for git repo https://github.com/twaters/mq_arbiter written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/twaters/mq_arbiter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a89f9318eb0cbf7ee227d1ce78213c01127149183f567abb62da7a82f20d4cb
[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" "6a89f9318eb0cbf7ee227d1ce78213c01127149183f567abb62da7a82f20d4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a89f9318eb0cbf7ee227d1ce78213c01127149183f567abb62da7a82f20d4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a89f9318eb0cbf7ee227d1ce78213c01127149183f567abb62da7a82f20d4cb", kill_on_drop: false }`
[INFO] [stdout] 6a89f9318eb0cbf7ee227d1ce78213c01127149183f567abb62da7a82f20d4cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c18eea477a15279e2c9c4366da051f480f517cf22291c2e3c5915ce4ed14a5a4
[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" "c18eea477a15279e2c9c4366da051f480f517cf22291c2e3c5915ce4ed14a5a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling arbiter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'zmq::Message::from_slice': Use the `From` trait instead.
[INFO] [stdout]    --> src/main.rs:214:15
[INFO] [stdout]     |
[INFO] [stdout] 214 |         let state = zmq::Message::from_slice(i.to_string().as_bytes());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/main.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn is_checksum_valid(message: &Vec<zmq::Message>) -> bool {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `registration_message`
[INFO] [stdout]    --> src/main.rs:103:38
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...y_name : &str, registration_message : &zmq::Message, children : &mut HashMap<String, zmq::Socket>, ctx : &zmq::Context) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registration_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `checksum`
[INFO] [stdout]    --> src/main.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let checksum = message.swap_remove(7);
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checksum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.13s
[INFO] running `Command { std: "docker" "inspect" "c18eea477a15279e2c9c4366da051f480f517cf22291c2e3c5915ce4ed14a5a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18eea477a15279e2c9c4366da051f480f517cf22291c2e3c5915ce4ed14a5a4", kill_on_drop: false }`
[INFO] [stdout] c18eea477a15279e2c9c4366da051f480f517cf22291c2e3c5915ce4ed14a5a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf8661e4ad56dee2e96a5575490848a138379baa5cdc26ce66fd488f675ec44e
[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" "cf8661e4ad56dee2e96a5575490848a138379baa5cdc26ce66fd488f675ec44e", kill_on_drop: false }`
[INFO] [stderr]    Compiling arbiter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'zmq::Message::from_slice': Use the `From` trait instead.
[INFO] [stdout]    --> src/main.rs:214:15
[INFO] [stdout]     |
[INFO] [stdout] 214 |         let state = zmq::Message::from_slice(i.to_string().as_bytes());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/main.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn is_checksum_valid(message: &Vec<zmq::Message>) -> bool {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `registration_message`
[INFO] [stdout]    --> src/main.rs:103:38
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...y_name : &str, registration_message : &zmq::Message, children : &mut HashMap<String, zmq::Socket>, ctx : &zmq::Context) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registration_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `checksum`
[INFO] [stdout]    --> src/main.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let checksum = message.swap_remove(7);
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checksum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "cf8661e4ad56dee2e96a5575490848a138379baa5cdc26ce66fd488f675ec44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf8661e4ad56dee2e96a5575490848a138379baa5cdc26ce66fd488f675ec44e", kill_on_drop: false }`
[INFO] [stdout] cf8661e4ad56dee2e96a5575490848a138379baa5cdc26ce66fd488f675ec44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 876aa7317c4eb9c5c0e348ea4be0836fe28f341a51eb731e2fd3766ff1317b1f
[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" "876aa7317c4eb9c5c0e348ea4be0836fe28f341a51eb731e2fd3766ff1317b1f", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'zmq::Message::from_slice': Use the `From` trait instead.
[INFO] [stderr]    --> src/main.rs:214:15
[INFO] [stderr]     |
[INFO] [stderr] 214 |         let state = zmq::Message::from_slice(i.to_string().as_bytes());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `message`
[INFO] [stderr]   --> src/main.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn is_checksum_valid(message: &Vec<zmq::Message>) -> bool {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `registration_message`
[INFO] [stderr]    --> src/main.rs:103:38
[INFO] [stderr]     |
[INFO] [stderr] 103 | ...y_name : &str, registration_message : &zmq::Message, children : &mut HashMap<String, zmq::Socket>, ctx : &zmq::Context) {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registration_message`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `checksum`
[INFO] [stderr]    --> src/main.rs:186:8
[INFO] [stderr]     |
[INFO] [stderr] 186 |             let checksum = message.swap_remove(7);
[INFO] [stderr]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_checksum`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arbiter-5c4f50406c3b670e
[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 `Command { std: "docker" "inspect" "876aa7317c4eb9c5c0e348ea4be0836fe28f341a51eb731e2fd3766ff1317b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "876aa7317c4eb9c5c0e348ea4be0836fe28f341a51eb731e2fd3766ff1317b1f", kill_on_drop: false }`
[INFO] [stdout] 876aa7317c4eb9c5c0e348ea4be0836fe28f341a51eb731e2fd3766ff1317b1f