[INFO] crate dmux 0.5.2 is already in cache
[INFO] testing dmux-0.5.2 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate dmux 0.5.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dmux 0.5.2 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dmux 0.5.2
[INFO] finished tweaking crates.io crate dmux 0.5.2
[INFO] tweaked toml for crates.io crate dmux 0.5.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate dmux 0.5.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 88cb801aae6f8cca96b743ab6d0b27ebe89ec5eed51cbcbe71847618c6772626
[INFO] running `Command { std: "docker" "start" "-a" "88cb801aae6f8cca96b743ab6d0b27ebe89ec5eed51cbcbe71847618c6772626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88cb801aae6f8cca96b743ab6d0b27ebe89ec5eed51cbcbe71847618c6772626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88cb801aae6f8cca96b743ab6d0b27ebe89ec5eed51cbcbe71847618c6772626", kill_on_drop: false }`
[INFO] [stdout] 88cb801aae6f8cca96b743ab6d0b27ebe89ec5eed51cbcbe71847618c6772626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0faebae3ea91d56acb6035781ae707d0fcb638ca89af76ccba8e42efa459d4fe
[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" "0faebae3ea91d56acb6035781ae707d0fcb638ca89af76ccba8e42efa459d4fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling tmux_interface v0.0.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling globset v0.4.5
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[INFO] [stderr]    Compiling grep-cli v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling config v0.10.1
[INFO] [stderr]    Compiling dmux v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.51s
[INFO] running `Command { std: "docker" "inspect" "0faebae3ea91d56acb6035781ae707d0fcb638ca89af76ccba8e42efa459d4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0faebae3ea91d56acb6035781ae707d0fcb638ca89af76ccba8e42efa459d4fe", kill_on_drop: false }`
[INFO] [stdout] 0faebae3ea91d56acb6035781ae707d0fcb638ca89af76ccba8e42efa459d4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", 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] 6018f55d2454f9aa23cb969f6cc17f268707cc4ce985cb8c707f38e0e424bd5c
[INFO] running `Command { std: "docker" "start" "-a" "6018f55d2454f9aa23cb969f6cc17f268707cc4ce985cb8c707f38e0e424bd5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling dmux v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "6018f55d2454f9aa23cb969f6cc17f268707cc4ce985cb8c707f38e0e424bd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6018f55d2454f9aa23cb969f6cc17f268707cc4ce985cb8c707f38e0e424bd5c", kill_on_drop: false }`
[INFO] [stdout] 6018f55d2454f9aa23cb969f6cc17f268707cc4ce985cb8c707f38e0e424bd5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f157b2944bf4b50701b9caa760f65bf353f77dad0dacc849943a152a33245410
[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" "f157b2944bf4b50701b9caa760f65bf353f77dad0dacc849943a152a33245410", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dmux-56ed4dd92c84066f
[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" "f157b2944bf4b50701b9caa760f65bf353f77dad0dacc849943a152a33245410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f157b2944bf4b50701b9caa760f65bf353f77dad0dacc849943a152a33245410", kill_on_drop: false }`
[INFO] [stdout] f157b2944bf4b50701b9caa760f65bf353f77dad0dacc849943a152a33245410