[INFO] cloning repository https://github.com/StackDoubleFlow/mc_schems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StackDoubleFlow/mc_schems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2Fmc_schems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2Fmc_schems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1b522ee6c0be93f632ce9b21d52ca01ce7f4e7e
[INFO] checking StackDoubleFlow/mc_schems against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2Fmc_schems" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StackDoubleFlow/mc_schems 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 git repo https://github.com/StackDoubleFlow/mc_schems
[INFO] finished tweaking git repo https://github.com/StackDoubleFlow/mc_schems
[INFO] tweaked toml for git repo https://github.com/StackDoubleFlow/mc_schems written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/StackDoubleFlow/mc_schems already has a lockfile, it will not be regenerated
[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]     Updating git repository `https://github.com/StackDoubleFlow/hematite_nbt.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] edea98151d8c529ce3160aeafcefb71bf49c62f20c144aa392b294fa3e60c9f4
[INFO] running `Command { std: "docker" "start" "-a" "edea98151d8c529ce3160aeafcefb71bf49c62f20c144aa392b294fa3e60c9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edea98151d8c529ce3160aeafcefb71bf49c62f20c144aa392b294fa3e60c9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edea98151d8c529ce3160aeafcefb71bf49c62f20c144aa392b294fa3e60c9f4", kill_on_drop: false }`
[INFO] [stdout] edea98151d8c529ce3160aeafcefb71bf49c62f20c144aa392b294fa3e60c9f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d3871671efb22cc136849b20530a6e0fe6b633060f5d941baf4014b8a30ebda1
[INFO] running `Command { std: "docker" "start" "-a" "d3871671efb22cc136849b20530a6e0fe6b633060f5d941baf4014b8a30ebda1", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking hematite-nbt v0.5.2 (https://github.com/StackDoubleFlow/hematite_nbt.git#50bf06b3)
[INFO] [stderr]     Checking mc_schems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `schem`
[INFO] [stdout]    --> src/sponge.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn serialize(schem: &Schematic, version: u32) -> Vec<u8> {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_schem`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/sponge.rs:169:37
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn serialize(schem: &Schematic, version: u32) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `schem`
[INFO] [stdout]    --> src/sponge.rs:169:18
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn serialize(schem: &Schematic, version: u32) -> Vec<u8> {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_schem`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/sponge.rs:169:37
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn serialize(schem: &Schematic, version: u32) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.14s
[INFO] running `Command { std: "docker" "inspect" "d3871671efb22cc136849b20530a6e0fe6b633060f5d941baf4014b8a30ebda1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3871671efb22cc136849b20530a6e0fe6b633060f5d941baf4014b8a30ebda1", kill_on_drop: false }`
[INFO] [stdout] d3871671efb22cc136849b20530a6e0fe6b633060f5d941baf4014b8a30ebda1