[INFO] fetching crate twitchchat 0.12.4...
[INFO] checking twitchchat-0.12.4 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate twitchchat 0.12.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate twitchchat 0.12.4 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twitchchat 0.12.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate twitchchat 0.12.4
[INFO] tweaked toml for crates.io crate twitchchat 0.12.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate twitchchat 0.12.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "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] 038acfbd576a6085bc1dc326ee09a6dd279ef7d0755e4f7f83d8decdef3ed13f
[INFO] running `Command { std: "docker" "start" "-a" "038acfbd576a6085bc1dc326ee09a6dd279ef7d0755e4f7f83d8decdef3ed13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "038acfbd576a6085bc1dc326ee09a6dd279ef7d0755e4f7f83d8decdef3ed13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038acfbd576a6085bc1dc326ee09a6dd279ef7d0755e4f7f83d8decdef3ed13f", kill_on_drop: false }`
[INFO] [stdout] 038acfbd576a6085bc1dc326ee09a6dd279ef7d0755e4f7f83d8decdef3ed13f
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "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] ab9342955d95331770cb9101be3749b6db01ee01b81f62111fdaf08239f26345
[INFO] running `Command { std: "docker" "start" "-a" "ab9342955d95331770cb9101be3749b6db01ee01b81f62111fdaf08239f26345", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.3.4
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking simple-mutex v1.1.5
[INFO] [stderr]     Checking async-dup v1.2.1
[INFO] [stderr]     Checking async-channel v1.4.1
[INFO] [stderr]     Checking futures-lite v1.0.0
[INFO] [stderr]     Checking async-executor v0.2.0
[INFO] [stderr]     Checking twitchchat v0.12.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.89s
[INFO] running `Command { std: "docker" "inspect" "ab9342955d95331770cb9101be3749b6db01ee01b81f62111fdaf08239f26345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9342955d95331770cb9101be3749b6db01ee01b81f62111fdaf08239f26345", kill_on_drop: false }`
[INFO] [stdout] ab9342955d95331770cb9101be3749b6db01ee01b81f62111fdaf08239f26345