[INFO] fetching crate g-rust 0.0.1-beta.8...
[INFO] checking g-rust-0.0.1-beta.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate g-rust 0.0.1-beta.8 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate g-rust 0.0.1-beta.8 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate g-rust 0.0.1-beta.8
[INFO] finished tweaking crates.io crate g-rust 0.0.1-beta.8
[INFO] tweaked toml for crates.io crate g-rust 0.0.1-beta.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages
[INFO] [stderr]       Adding darling v0.14.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_core v0.14.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_macro v0.14.4 (latest: v0.20.8)
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.35)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v0.11.11 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (latest: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded packetvar-derive v0.1.0
[INFO] [stderr]   Downloaded parser-derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1641f3a04b7f1948367b7e1bad42487af8ab39d0016dac67e5615366a191961b
[INFO] running `Command { std: "docker" "start" "-a" "1641f3a04b7f1948367b7e1bad42487af8ab39d0016dac67e5615366a191961b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1641f3a04b7f1948367b7e1bad42487af8ab39d0016dac67e5615366a191961b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1641f3a04b7f1948367b7e1bad42487af8ab39d0016dac67e5615366a191961b", kill_on_drop: false }`
[INFO] [stdout] 1641f3a04b7f1948367b7e1bad42487af8ab39d0016dac67e5615366a191961b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac369b4ca85738a16f025ab3b661539eeb96965019386beeddbaadb4fabdaede
[INFO] running `Command { std: "docker" "start" "-a" "ac369b4ca85738a16f025ab3b661539eeb96965019386beeddbaadb4fabdaede", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling packetvar-derive v0.1.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling parser-derive v0.1.0
[INFO] [stderr]     Checking g-rust v0.0.1-beta.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/protocol/vars/longstring.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl LongString {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn from(s: &str) -> LongString {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `PACKET_TO_STRING_RESPONSE` and `STRING_TO_PACKET_RESPONSE` are never used
[INFO] [stdout]   --> src/misc/messages.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 2  | impl IncomingMessageIds {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub const PACKET_TO_STRING_RESPONSE: i16 = 20;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     pub const STRING_TO_PACKET_RESPONSE: i16 = 21;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `PACKET_TO_STRING_REQUEST` and `STRING_TO_PACKET_REQUEST` are never used
[INFO] [stdout]   --> src/misc/messages.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl OutgoingMessageIds {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub const PACKET_TO_STRING_REQUEST: i16 = 20;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |     pub const STRING_TO_PACKET_REQUEST: i16 = 21;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/protocol/vars/longstring.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl LongString {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn from(s: &str) -> LongString {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `PACKET_TO_STRING_RESPONSE` and `STRING_TO_PACKET_RESPONSE` are never used
[INFO] [stdout]   --> src/misc/messages.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 2  | impl IncomingMessageIds {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub const PACKET_TO_STRING_RESPONSE: i16 = 20;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     pub const STRING_TO_PACKET_RESPONSE: i16 = 21;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `PACKET_TO_STRING_REQUEST` and `STRING_TO_PACKET_REQUEST` are never used
[INFO] [stdout]   --> src/misc/messages.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl OutgoingMessageIds {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub const PACKET_TO_STRING_REQUEST: i16 = 20;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |     pub const STRING_TO_PACKET_REQUEST: i16 = 21;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.36s
[INFO] running `Command { std: "docker" "inspect" "ac369b4ca85738a16f025ab3b661539eeb96965019386beeddbaadb4fabdaede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac369b4ca85738a16f025ab3b661539eeb96965019386beeddbaadb4fabdaede", kill_on_drop: false }`
[INFO] [stdout] ac369b4ca85738a16f025ab3b661539eeb96965019386beeddbaadb4fabdaede