[INFO] cloning repository https://github.com/Maurimura7/async-std-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Maurimura7/async-std-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaurimura7%2Fasync-std-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaurimura7%2Fasync-std-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ac34a2d17b58fb6ec6a2689ace4bcc0cd66ebd1
[INFO] checking Maurimura7/async-std-chat against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaurimura7%2Fasync-std-chat" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Maurimura7/async-std-chat on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Maurimura7/async-std-chat
[INFO] finished tweaking git repo https://github.com/Maurimura7/async-std-chat
[INFO] tweaked toml for git repo https://github.com/Maurimura7/async-std-chat written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Maurimura7/async-std-chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blocking v0.4.6
[INFO] [stderr]   Downloaded wepoll-binding v2.0.2
[INFO] [stderr]   Downloaded concurrent-queue v1.1.1
[INFO] [stderr]   Downloaded fastrand v1.2.4
[INFO] [stderr]   Downloaded waker-fn v1.0.0
[INFO] [stderr]   Downloaded kv-log-macro v1.0.6
[INFO] [stderr]   Downloaded parking v1.0.1
[INFO] [stderr]   Downloaded piper v0.1.3
[INFO] [stderr]   Downloaded cache-padded v1.1.0
[INFO] [stderr]   Downloaded wepoll-sys v2.0.0
[INFO] [stderr]   Downloaded syn v1.0.32
[INFO] [stderr]   Downloaded async-std v1.6.2
[INFO] [stderr]   Downloaded smol v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b7c2da25e9f78580a0f89020902eef764adbebd889768eb0c54acad56da7e72
[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" "4b7c2da25e9f78580a0f89020902eef764adbebd889768eb0c54acad56da7e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b7c2da25e9f78580a0f89020902eef764adbebd889768eb0c54acad56da7e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7c2da25e9f78580a0f89020902eef764adbebd889768eb0c54acad56da7e72", kill_on_drop: false }`
[INFO] [stdout] 4b7c2da25e9f78580a0f89020902eef764adbebd889768eb0c54acad56da7e72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 3a12901aa33307ea4ff9a4da82a097158718cd98fc342fd88011f974b9f819b4
[INFO] running `Command { std: "docker" "start" "-a" "3a12901aa33307ea4ff9a4da82a097158718cd98fc342fd88011f974b9f819b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.32
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking parking v1.0.1
[INFO] [stderr]     Checking fastrand v1.2.4
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking kv-log-macro v1.0.6
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking piper v0.1.3
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking smol v0.1.15
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Checking async-std-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.79s
[INFO] running `Command { std: "docker" "inspect" "3a12901aa33307ea4ff9a4da82a097158718cd98fc342fd88011f974b9f819b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a12901aa33307ea4ff9a4da82a097158718cd98fc342fd88011f974b9f819b4", kill_on_drop: false }`
[INFO] [stdout] 3a12901aa33307ea4ff9a4da82a097158718cd98fc342fd88011f974b9f819b4