[INFO] cloning repository https://github.com/museun/twitchchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/museun/twitchchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuseun%2Ftwitchchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuseun%2Ftwitchchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d41348ad3b9c7fe7dba489e805f31afec57957f
[INFO] checking museun/twitchchat against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuseun%2Ftwitchchat" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/museun/twitchchat on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/museun/twitchchat
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/museun/twitchchat
[INFO] tweaked toml for git repo https://github.com/museun/twitchchat written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-mutex v1.1.5
[INFO] [stderr]   Downloaded nb-connect v1.0.2
[INFO] [stderr]   Downloaded polling v2.0.2
[INFO] [stderr]   Downloaded async-io v1.2.0
[INFO] [stderr]   Downloaded async-net v1.5.0
[INFO] [stderr]   Downloaded async-global-executor v1.4.3
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded async-mutex v1.4.0
[INFO] [stderr]   Downloaded async-std v1.7.0
[INFO] [stderr]   Downloaded async-fs v1.5.0
[INFO] [stderr]   Downloaded async-executor v1.4.0
[INFO] [stderr]   Downloaded async-lock v2.3.0
[INFO] [stderr]   Downloaded async-tls v0.10.0
[INFO] [stderr]   Downloaded rmp v0.8.9
[INFO] [stderr]   Downloaded rmp-serde v0.14.4
[INFO] [stderr]   Downloaded async-process v1.0.1
[INFO] [stderr]   Downloaded smol v1.2.4
[INFO] [stderr]   Downloaded wepoll-sys v3.0.1
[INFO] [stderr]   Downloaded futures-lite v1.11.2
[INFO] [stderr]   Downloaded blocking v1.0.2
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.2
[INFO] [stderr]   Downloaded tokio-openssl v0.4.0
[INFO] [stderr]   Downloaded async-dup v1.2.2
[INFO] [stderr]   Downloaded tokio-rustls v0.14.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b6e54dc3b6e0f78bc242ec7cfaae8066e205e70724f7e7111ccfc85b3e1e2ac
[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" "1b6e54dc3b6e0f78bc242ec7cfaae8066e205e70724f7e7111ccfc85b3e1e2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b6e54dc3b6e0f78bc242ec7cfaae8066e205e70724f7e7111ccfc85b3e1e2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b6e54dc3b6e0f78bc242ec7cfaae8066e205e70724f7e7111ccfc85b3e1e2ac", kill_on_drop: false }`
[INFO] [stdout] 1b6e54dc3b6e0f78bc242ec7cfaae8066e205e70724f7e7111ccfc85b3e1e2ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc5433c534d2fd3fdd46c6c56f52c4340a6c1a6c70159e7f27bcfd387441d732
[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" "dc5433c534d2fd3fdd46c6c56f52c4340a6c1a6c70159e7f27bcfd387441d732", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking twitchchat v0.14.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.43s
[INFO] running `Command { std: "docker" "inspect" "dc5433c534d2fd3fdd46c6c56f52c4340a6c1a6c70159e7f27bcfd387441d732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5433c534d2fd3fdd46c6c56f52c4340a6c1a6c70159e7f27bcfd387441d732", kill_on_drop: false }`
[INFO] [stdout] dc5433c534d2fd3fdd46c6c56f52c4340a6c1a6c70159e7f27bcfd387441d732