[INFO] fetching crate crfsuite-sys 0.3.1...
[INFO] checking crfsuite-sys-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate crfsuite-sys 0.3.1 into /workspace/builds/worker-0-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-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 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 liblbfgs-sys v0.1.2
[INFO] [stderr]   Downloaded cqdb-sys v0.1.1
[INFO] [stderr]   Downloaded cmake v0.1.50
[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] 5cc0d830c6a2c61e69af2032c5929bbadbff51b80c3cc1d00358988bd7f7eaf5
[INFO] running `Command { std: "docker" "start" "-a" "5cc0d830c6a2c61e69af2032c5929bbadbff51b80c3cc1d00358988bd7f7eaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cc0d830c6a2c61e69af2032c5929bbadbff51b80c3cc1d00358988bd7f7eaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cc0d830c6a2c61e69af2032c5929bbadbff51b80c3cc1d00358988bd7f7eaf5", kill_on_drop: false }`
[INFO] [stdout] 5cc0d830c6a2c61e69af2032c5929bbadbff51b80c3cc1d00358988bd7f7eaf5
[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] fe749832b95269c9c1d19da0492d004dcf915224d2f5638aecbc7154305d1282
[INFO] running `Command { std: "docker" "start" "-a" "fe749832b95269c9c1d19da0492d004dcf915224d2f5638aecbc7154305d1282", 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 5.57s
[INFO] running `Command { std: "docker" "inspect" "fe749832b95269c9c1d19da0492d004dcf915224d2f5638aecbc7154305d1282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe749832b95269c9c1d19da0492d004dcf915224d2f5638aecbc7154305d1282", kill_on_drop: false }`
[INFO] [stdout] fe749832b95269c9c1d19da0492d004dcf915224d2f5638aecbc7154305d1282
[INFO] checking crfsuite-sys-0.3.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate crfsuite-sys 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate crfsuite-sys 0.3.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 751526fd67b7356891bcdd51c11e9318af98536d5c8341a5a574e4323690cebf
[INFO] running `Command { std: "docker" "start" "-a" "751526fd67b7356891bcdd51c11e9318af98536d5c8341a5a574e4323690cebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "751526fd67b7356891bcdd51c11e9318af98536d5c8341a5a574e4323690cebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "751526fd67b7356891bcdd51c11e9318af98536d5c8341a5a574e4323690cebf", kill_on_drop: false }`
[INFO] [stdout] 751526fd67b7356891bcdd51c11e9318af98536d5c8341a5a574e4323690cebf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d08ac09852266c846b1169c9b62b81508e296a4616ec10bd03c131792e1bbecd
[INFO] running `Command { std: "docker" "start" "-a" "d08ac09852266c846b1169c9b62b81508e296a4616ec10bd03c131792e1bbecd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling cqdb-sys v0.1.1
[INFO] [stderr]    Compiling liblbfgs-sys v0.1.2
[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 6.06s
[INFO] running `Command { std: "docker" "inspect" "d08ac09852266c846b1169c9b62b81508e296a4616ec10bd03c131792e1bbecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d08ac09852266c846b1169c9b62b81508e296a4616ec10bd03c131792e1bbecd", kill_on_drop: false }`
[INFO] [stdout] d08ac09852266c846b1169c9b62b81508e296a4616ec10bd03c131792e1bbecd