[INFO] fetching crate firebirust 0.1.0...
[INFO] checking firebirust-0.1.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate firebirust 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate firebirust 0.1.0 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 firebirust 0.1.0
[INFO] finished tweaking crates.io crate firebirust 0.1.0
[INFO] tweaked toml for crates.io crate firebirust 0.1.0 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] 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] 12dfbfa53496f045d5ecde96c87ffc5447e8c88ea1662cf976247374cf323304
[INFO] running `Command { std: "docker" "start" "-a" "12dfbfa53496f045d5ecde96c87ffc5447e8c88ea1662cf976247374cf323304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12dfbfa53496f045d5ecde96c87ffc5447e8c88ea1662cf976247374cf323304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12dfbfa53496f045d5ecde96c87ffc5447e8c88ea1662cf976247374cf323304", kill_on_drop: false }`
[INFO] [stdout] 12dfbfa53496f045d5ecde96c87ffc5447e8c88ea1662cf976247374cf323304
[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] c7c4bfb73a33859a54ee915d014445e96c27f0c10675d880f73b6f77c461536e
[INFO] running `Command { std: "docker" "start" "-a" "c7c4bfb73a33859a54ee915d014445e96c27f0c10675d880f73b6f77c461536e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking rust_decimal v1.16.0
[INFO] [stderr]    Compiling rust_decimal_macros v1.16.0
[INFO] [stderr]     Checking firebirust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:472:9
[INFO] [stdout]     |
[INFO] [stdout] 472 |         &self.write_buf.clear();
[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] 472 |         let _ = &self.write_buf.clear();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:609:9
[INFO] [stdout]     |
[INFO] [stdout] 609 |         &self.recv_packets_alignment(ln);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 609 |         let _ = &self.recv_packets_alignment(ln);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:624:13
[INFO] [stdout]     |
[INFO] [stdout] 624 |             &self.recv_packets_alignment(ln)?; // plugin_name
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 624 |             let _ = &self.recv_packets_alignment(ln)?; // plugin_name
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:627:13
[INFO] [stdout]     |
[INFO] [stdout] 627 |             &self.recv_packets_alignment(ln)?; // plugin_name_list
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 627 |             let _ = &self.recv_packets_alignment(ln)?; // plugin_name_list
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:631:13
[INFO] [stdout]     |
[INFO] [stdout] 631 |             &self.recv_packets_alignment(ln);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 631 |             let _ = &self.recv_packets_alignment(ln);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:472:9
[INFO] [stdout]     |
[INFO] [stdout] 472 |         &self.write_buf.clear();
[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] 472 |         let _ = &self.write_buf.clear();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:609:9
[INFO] [stdout]     |
[INFO] [stdout] 609 |         &self.recv_packets_alignment(ln);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 609 |         let _ = &self.recv_packets_alignment(ln);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:624:13
[INFO] [stdout]     |
[INFO] [stdout] 624 |             &self.recv_packets_alignment(ln)?; // plugin_name
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 624 |             let _ = &self.recv_packets_alignment(ln)?; // plugin_name
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:627:13
[INFO] [stdout]     |
[INFO] [stdout] 627 |             &self.recv_packets_alignment(ln)?; // plugin_name_list
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 627 |             let _ = &self.recv_packets_alignment(ln)?; // plugin_name_list
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/wireprotocol.rs:631:13
[INFO] [stdout]     |
[INFO] [stdout] 631 |             &self.recv_packets_alignment(ln);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 631 |             let _ = &self.recv_packets_alignment(ln);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.75s
[INFO] running `Command { std: "docker" "inspect" "c7c4bfb73a33859a54ee915d014445e96c27f0c10675d880f73b6f77c461536e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7c4bfb73a33859a54ee915d014445e96c27f0c10675d880f73b6f77c461536e", kill_on_drop: false }`
[INFO] [stdout] c7c4bfb73a33859a54ee915d014445e96c27f0c10675d880f73b6f77c461536e