[INFO] fetching crate crfsuite-sys 0.3.1...
[INFO] checking crfsuite-sys-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate crfsuite-sys 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate crfsuite-sys 0.3.1 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 crfsuite-sys 0.3.1
[INFO] finished tweaking crates.io crate crfsuite-sys 0.3.1
[INFO] tweaked toml for crates.io crate crfsuite-sys 0.3.1 written to /workspace/builds/worker-2-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 6 packages
[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 cqdb-sys v0.1.1
[INFO] [stderr]   Downloaded liblbfgs-sys v0.1.2
[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] f3d4db89dec1b0ce2077a25bbdd077f2ae78c388a1b28ca80bebd91de7346bd6
[INFO] running `Command { std: "docker" "start" "-a" "f3d4db89dec1b0ce2077a25bbdd077f2ae78c388a1b28ca80bebd91de7346bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3d4db89dec1b0ce2077a25bbdd077f2ae78c388a1b28ca80bebd91de7346bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3d4db89dec1b0ce2077a25bbdd077f2ae78c388a1b28ca80bebd91de7346bd6", kill_on_drop: false }`
[INFO] [stdout] f3d4db89dec1b0ce2077a25bbdd077f2ae78c388a1b28ca80bebd91de7346bd6
[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] 891f28465b9c1310e01c14abb156e876e4102335dd49493455d9dba2964dd3c4
[INFO] running `Command { std: "docker" "start" "-a" "891f28465b9c1310e01c14abb156e876e4102335dd49493455d9dba2964dd3c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling liblbfgs-sys v0.1.2
[INFO] [stderr]    Compiling cqdb-sys v0.1.1
[INFO] [stderr]    Compiling crfsuite-sys v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: crfsuite-sys@0.3.1: Compiler version doesn't include clang or GCC: "cc" "--version"
[INFO] [stderr] warning: crfsuite-sys@0.3.1: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/bindings.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::{self, FILE};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/bindings.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::{self, FILE};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "891f28465b9c1310e01c14abb156e876e4102335dd49493455d9dba2964dd3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891f28465b9c1310e01c14abb156e876e4102335dd49493455d9dba2964dd3c4", kill_on_drop: false }`
[INFO] [stdout] 891f28465b9c1310e01c14abb156e876e4102335dd49493455d9dba2964dd3c4