[INFO] fetching crate grammers-client 0.1.0...
[INFO] checking grammers-client-0.1.0 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] extracting crate grammers-client 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate grammers-client 0.1.0 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grammers-client 0.1.0
[INFO] finished tweaking crates.io crate grammers-client 0.1.0
[INFO] tweaked toml for crates.io crate grammers-client 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate grammers-client 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69fd2afc5de9eb51bf90cb6a69b554c1d57fe79accc2b8ea743f6a79492ae3d1
[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" "69fd2afc5de9eb51bf90cb6a69b554c1d57fe79accc2b8ea743f6a79492ae3d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69fd2afc5de9eb51bf90cb6a69b554c1d57fe79accc2b8ea743f6a79492ae3d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69fd2afc5de9eb51bf90cb6a69b554c1d57fe79accc2b8ea743f6a79492ae3d1", kill_on_drop: false }`
[INFO] [stdout] 69fd2afc5de9eb51bf90cb6a69b554c1d57fe79accc2b8ea743f6a79492ae3d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 715b9ee6c5f8f0d564472c4115b98930ecb31d7cf9777b53d9a28da998a4b4f3
[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" "715b9ee6c5f8f0d564472c4115b98930ecb31d7cf9777b53d9a28da998a4b4f3", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling openssl v0.10.27
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking grammers-session v0.1.0
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling grammers-tl-parser v1.0.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling grammers-tl-types v0.1.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking grammers-crypto v0.1.0
[INFO] [stderr]     Checking grammers-mtproto v0.1.0
[INFO] [stderr]     Checking grammers-mtsender v0.1.0
[INFO] [stderr]     Checking grammers-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> examples/ping.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     dbg!(client.invoke(&tl::functions::Ping { ping_id: 0 })?);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.28s
[INFO] running `Command { std: "docker" "inspect" "715b9ee6c5f8f0d564472c4115b98930ecb31d7cf9777b53d9a28da998a4b4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715b9ee6c5f8f0d564472c4115b98930ecb31d7cf9777b53d9a28da998a4b4f3", kill_on_drop: false }`
[INFO] [stdout] 715b9ee6c5f8f0d564472c4115b98930ecb31d7cf9777b53d9a28da998a4b4f3