[INFO] fetching crate messagebus 0.5.2...
[INFO] checking messagebus-0.5.2 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate messagebus 0.5.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate messagebus 0.5.2 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate messagebus 0.5.2
[INFO] finished tweaking crates.io crate messagebus 0.5.2
[INFO] tweaked toml for crates.io crate messagebus 0.5.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate messagebus 0.5.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-sink v0.3.11
[INFO] [stderr]   Downloaded futures v0.3.11
[INFO] [stderr]   Downloaded libc v0.2.82
[INFO] [stderr]   Downloaded futures-channel v0.3.11
[INFO] [stderr]   Downloaded futures-executor v0.3.11
[INFO] [stderr]   Downloaded futures-macro v0.3.11
[INFO] [stderr]   Downloaded futures-util v0.3.11
[INFO] [stderr]   Downloaded futures-task v0.3.11
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded futures-io v0.3.11
[INFO] [stderr]   Downloaded futures-core v0.3.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1bcd1d4cc7575693d464073984f812d4ef0162512237459c17a4fee1de5c0c0
[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" "b1bcd1d4cc7575693d464073984f812d4ef0162512237459c17a4fee1de5c0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1bcd1d4cc7575693d464073984f812d4ef0162512237459c17a4fee1de5c0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1bcd1d4cc7575693d464073984f812d4ef0162512237459c17a4fee1de5c0c0", kill_on_drop: false }`
[INFO] [stdout] b1bcd1d4cc7575693d464073984f812d4ef0162512237459c17a4fee1de5c0c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 980060d860d070143ea4f947fac79ce7a474a1af51d98dc55e8127314f424bf7
[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" "980060d860d070143ea4f947fac79ce7a474a1af51d98dc55e8127314f424bf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking futures-core v0.3.11
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking futures-sink v0.3.11
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.11
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling tokio v1.1.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.11
[INFO] [stderr]     Checking futures-channel v0.3.11
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.11
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking futures-util v0.3.11
[INFO] [stderr]     Checking futures-executor v0.3.11
[INFO] [stderr]     Checking futures v0.3.11
[INFO] [stderr]     Checking messagebus v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.60s
[INFO] running `Command { std: "docker" "inspect" "980060d860d070143ea4f947fac79ce7a474a1af51d98dc55e8127314f424bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980060d860d070143ea4f947fac79ce7a474a1af51d98dc55e8127314f424bf7", kill_on_drop: false }`
[INFO] [stdout] 980060d860d070143ea4f947fac79ce7a474a1af51d98dc55e8127314f424bf7