[INFO] fetching crate regecs 2.0.0-alpha-1...
[INFO] checking regecs-2.0.0-alpha-1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate regecs 2.0.0-alpha-1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate regecs 2.0.0-alpha-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 regecs 2.0.0-alpha-1
[INFO] finished tweaking crates.io crate regecs 2.0.0-alpha-1
[INFO] tweaked toml for crates.io crate regecs 2.0.0-alpha-1 written to /workspace/builds/worker-5-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 linux-raw-sys v0.4.13 (latest: v0.6.4)
[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 bpx v3.1.0
[INFO] [stderr]   Downloaded libz-sys v1.1.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ad4c7b92626c0a22885688b4ca0acd2500c1265b67c03c8ccee9a87a10b7ebd7
[INFO] running `Command { std: "docker" "start" "-a" "ad4c7b92626c0a22885688b4ca0acd2500c1265b67c03c8ccee9a87a10b7ebd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad4c7b92626c0a22885688b4ca0acd2500c1265b67c03c8ccee9a87a10b7ebd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad4c7b92626c0a22885688b4ca0acd2500c1265b67c03c8ccee9a87a10b7ebd7", kill_on_drop: false }`
[INFO] [stdout] ad4c7b92626c0a22885688b4ca0acd2500c1265b67c03c8ccee9a87a10b7ebd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4614bd7e1928b370e2c02b6a8448d54c427a1ebc28126789914439c6387e4cc7
[INFO] running `Command { std: "docker" "start" "-a" "4614bd7e1928b370e2c02b6a8448d54c427a1ebc28126789914439c6387e4cc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking bpx v3.1.0
[INFO] [stderr]     Checking regecs v2.0.0-alpha-1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/component/pool/basic_pool.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     vec::Vec
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/component/pool/basic_pool.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     vec::Vec
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[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 5.37s
[INFO] running `Command { std: "docker" "inspect" "4614bd7e1928b370e2c02b6a8448d54c427a1ebc28126789914439c6387e4cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4614bd7e1928b370e2c02b6a8448d54c427a1ebc28126789914439c6387e4cc7", kill_on_drop: false }`
[INFO] [stdout] 4614bd7e1928b370e2c02b6a8448d54c427a1ebc28126789914439c6387e4cc7
[INFO] checking regecs-2.0.0-alpha-1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate regecs 2.0.0-alpha-1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate regecs 2.0.0-alpha-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 regecs 2.0.0-alpha-1
[INFO] finished tweaking crates.io crate regecs 2.0.0-alpha-1
[INFO] tweaked toml for crates.io crate regecs 2.0.0-alpha-1 written to /workspace/builds/worker-5-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 27 packages
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 47022bc69518926ba8a22f596d3b2bcdfd40c842ddea65dc48adbf6ca4bbce4e
[INFO] running `Command { std: "docker" "start" "-a" "47022bc69518926ba8a22f596d3b2bcdfd40c842ddea65dc48adbf6ca4bbce4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47022bc69518926ba8a22f596d3b2bcdfd40c842ddea65dc48adbf6ca4bbce4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47022bc69518926ba8a22f596d3b2bcdfd40c842ddea65dc48adbf6ca4bbce4e", kill_on_drop: false }`
[INFO] [stdout] 47022bc69518926ba8a22f596d3b2bcdfd40c842ddea65dc48adbf6ca4bbce4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 97864ee0c7b8f2fbc96a8c1d487496ce314bd2e7346bcdb370d80d0d11f1fd59
[INFO] running `Command { std: "docker" "start" "-a" "97864ee0c7b8f2fbc96a8c1d487496ce314bd2e7346bcdb370d80d0d11f1fd59", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking bpx v3.1.0
[INFO] [stderr]     Checking regecs v2.0.0-alpha-1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/component/pool/basic_pool.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     vec::Vec
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/component/pool/basic_pool.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     vec::Vec
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[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 4.79s
[INFO] running `Command { std: "docker" "inspect" "97864ee0c7b8f2fbc96a8c1d487496ce314bd2e7346bcdb370d80d0d11f1fd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97864ee0c7b8f2fbc96a8c1d487496ce314bd2e7346bcdb370d80d0d11f1fd59", kill_on_drop: false }`
[INFO] [stdout] 97864ee0c7b8f2fbc96a8c1d487496ce314bd2e7346bcdb370d80d0d11f1fd59