[INFO] fetching crate rlz 0.2.0...
[INFO] checking rlz-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rlz 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rlz 0.2.0 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 rlz 0.2.0
[INFO] finished tweaking crates.io crate rlz 0.2.0
[INFO] tweaked toml for crates.io crate rlz 0.2.0 written to /workspace/builds/worker-4-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 78 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding zstd v0.11.2+zstd.1.5.2 (latest: v0.13.1)
[INFO] [stderr]       Adding zstd-safe v5.0.2+zstd.1.5.2 (latest: v7.1.0)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metrohash v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 72db90d33cf1891ad570f684bf14656e12a9c81e28838d3bd78338be609ce4de
[INFO] running `Command { std: "docker" "start" "-a" "72db90d33cf1891ad570f684bf14656e12a9c81e28838d3bd78338be609ce4de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72db90d33cf1891ad570f684bf14656e12a9c81e28838d3bd78338be609ce4de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72db90d33cf1891ad570f684bf14656e12a9c81e28838d3bd78338be609ce4de", kill_on_drop: false }`
[INFO] [stdout] 72db90d33cf1891ad570f684bf14656e12a9c81e28838d3bd78338be609ce4de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] acde864b000e649c22144ba3dfd73c5a38e59e5f4f30c660f98f8ad38463ecbf
[INFO] running `Command { std: "docker" "start" "-a" "acde864b000e649c22144ba3dfd73c5a38e59e5f4f30c660f98f8ad38463ecbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling cdivsufsort v2.0.0
[INFO] [stderr]     Checking sacabase v2.0.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking rlz v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.90s
[INFO] running `Command { std: "docker" "inspect" "acde864b000e649c22144ba3dfd73c5a38e59e5f4f30c660f98f8ad38463ecbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acde864b000e649c22144ba3dfd73c5a38e59e5f4f30c660f98f8ad38463ecbf", kill_on_drop: false }`
[INFO] [stdout] acde864b000e649c22144ba3dfd73c5a38e59e5f4f30c660f98f8ad38463ecbf
[INFO] checking rlz-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rlz 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rlz 0.2.0 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 rlz 0.2.0
[INFO] finished tweaking crates.io crate rlz 0.2.0
[INFO] tweaked toml for crates.io crate rlz 0.2.0 written to /workspace/builds/worker-4-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 78 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding zstd v0.11.2+zstd.1.5.2 (latest: v0.13.1)
[INFO] [stderr]       Adding zstd-safe v5.0.2+zstd.1.5.2 (latest: v7.1.0)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3daac2f1e3f192de8e2dab5d01194c5ae2c7a319c3760a3cb049bf1c800dbe51
[INFO] running `Command { std: "docker" "start" "-a" "3daac2f1e3f192de8e2dab5d01194c5ae2c7a319c3760a3cb049bf1c800dbe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3daac2f1e3f192de8e2dab5d01194c5ae2c7a319c3760a3cb049bf1c800dbe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3daac2f1e3f192de8e2dab5d01194c5ae2c7a319c3760a3cb049bf1c800dbe51", kill_on_drop: false }`
[INFO] [stdout] 3daac2f1e3f192de8e2dab5d01194c5ae2c7a319c3760a3cb049bf1c800dbe51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 21ee7003facb250c7d5f01aa1a32f5530b41645dbd74983e323cc180def25914
[INFO] running `Command { std: "docker" "start" "-a" "21ee7003facb250c7d5f01aa1a32f5530b41645dbd74983e323cc180def25914", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling cdivsufsort v2.0.0
[INFO] [stderr]     Checking sacabase v2.0.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking rlz v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.68s
[INFO] running `Command { std: "docker" "inspect" "21ee7003facb250c7d5f01aa1a32f5530b41645dbd74983e323cc180def25914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ee7003facb250c7d5f01aa1a32f5530b41645dbd74983e323cc180def25914", kill_on_drop: false }`
[INFO] [stdout] 21ee7003facb250c7d5f01aa1a32f5530b41645dbd74983e323cc180def25914