[INFO] fetching crate xactor 0.7.7...
[INFO] checking xactor-0.7.7 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate xactor 0.7.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate xactor 0.7.7 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xactor 0.7.7
[INFO] finished tweaking crates.io crate xactor 0.7.7
[INFO] tweaked toml for crates.io crate xactor 0.7.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate xactor 0.7.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90ab98a0601308f9b6541aa75b9267b5a6095a9adc45103dd12a527f8b3e21b8
[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" "90ab98a0601308f9b6541aa75b9267b5a6095a9adc45103dd12a527f8b3e21b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90ab98a0601308f9b6541aa75b9267b5a6095a9adc45103dd12a527f8b3e21b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90ab98a0601308f9b6541aa75b9267b5a6095a9adc45103dd12a527f8b3e21b8", kill_on_drop: false }`
[INFO] [stdout] 90ab98a0601308f9b6541aa75b9267b5a6095a9adc45103dd12a527f8b3e21b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--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] c6bb7d4bb95887c7b50abef6e67c76c949a7e475be2f144d6a77614dd8a4000c
[INFO] running `Command { std: "docker" "start" "-a" "c6bb7d4bb95887c7b50abef6e67c76c949a7e475be2f144d6a77614dd8a4000c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.37
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking event-listener v2.3.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking concurrent-queue v1.2.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking async-channel v1.4.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-lite v0.1.10
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling xactor-derive v0.7.1
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Checking xactor v0.7.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.62s
[INFO] running `Command { std: "docker" "inspect" "c6bb7d4bb95887c7b50abef6e67c76c949a7e475be2f144d6a77614dd8a4000c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6bb7d4bb95887c7b50abef6e67c76c949a7e475be2f144d6a77614dd8a4000c", kill_on_drop: false }`
[INFO] [stdout] c6bb7d4bb95887c7b50abef6e67c76c949a7e475be2f144d6a77614dd8a4000c