[INFO] fetching crate grammers-mtproto 0.3.0...
[INFO] checking grammers-mtproto-0.3.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate grammers-mtproto 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate grammers-mtproto 0.3.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grammers-mtproto 0.3.0
[INFO] finished tweaking crates.io crate grammers-mtproto 0.3.0
[INFO] tweaked toml for crates.io crate grammers-mtproto 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56483b8160fd9b567af42d0c31c1d46ecaa70186218158e737406301bf4a88fa
[INFO] running `Command { std: "docker" "start" "-a" "56483b8160fd9b567af42d0c31c1d46ecaa70186218158e737406301bf4a88fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56483b8160fd9b567af42d0c31c1d46ecaa70186218158e737406301bf4a88fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56483b8160fd9b567af42d0c31c1d46ecaa70186218158e737406301bf4a88fa", kill_on_drop: false }`
[INFO] [stdout] 56483b8160fd9b567af42d0c31c1d46ecaa70186218158e737406301bf4a88fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 673e108a668a4544a103a202d147642ac4c5b38262dbe9df808b35fa2539a7c2
[INFO] running `Command { std: "docker" "start" "-a" "673e108a668a4544a103a202d147642ac4c5b38262dbe9df808b35fa2539a7c2", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking base64ct v1.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling grammers-tl-parser v1.0.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]    Compiling grammers-tl-gen v0.3.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling grammers-tl-types v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking password-hash v0.2.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking glass_pumpkin v1.1.0
[INFO] [stderr]     Checking grammers-crypto v0.3.0
[INFO] [stderr]     Checking grammers-mtproto v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/mtp/plain.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         &mut self.buffer.extend_from_slice(request); // message_data
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = &mut self.buffer.extend_from_slice(request); // message_data
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/mtp/plain.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         &mut self.buffer.extend_from_slice(request); // message_data
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = &mut self.buffer.extend_from_slice(request); // message_data
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.69s
[INFO] running `Command { std: "docker" "inspect" "673e108a668a4544a103a202d147642ac4c5b38262dbe9df808b35fa2539a7c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673e108a668a4544a103a202d147642ac4c5b38262dbe9df808b35fa2539a7c2", kill_on_drop: false }`
[INFO] [stdout] 673e108a668a4544a103a202d147642ac4c5b38262dbe9df808b35fa2539a7c2