[INFO] fetching crate nu-system 0.87.1...
[INFO] checking nu-system-0.87.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate nu-system 0.87.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate nu-system 0.87.1 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 nu-system 0.87.1
[INFO] finished tweaking crates.io crate nu-system 0.87.1
[INFO] tweaked toml for crates.io crate nu-system 0.87.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate nu-system 0.87.1 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]     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 libproc v0.14.2
[INFO] [stderr]   Downloaded sysinfo v0.29.10
[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] 4badb173f6c5a7b5c671e58357c391d3f49437564bb7594564dd0215b11332a7
[INFO] running `Command { std: "docker" "start" "-a" "4badb173f6c5a7b5c671e58357c391d3f49437564bb7594564dd0215b11332a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4badb173f6c5a7b5c671e58357c391d3f49437564bb7594564dd0215b11332a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4badb173f6c5a7b5c671e58357c391d3f49437564bb7594564dd0215b11332a7", kill_on_drop: false }`
[INFO] [stdout] 4badb173f6c5a7b5c671e58357c391d3f49437564bb7594564dd0215b11332a7
[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] 5ae1407d859eb7b8f3d281b3353607eda97da365af91ef86a8f8064bb631ad81
[INFO] running `Command { std: "docker" "start" "-a" "5ae1407d859eb7b8f3d281b3353607eda97da365af91ef86a8f8064bb631ad81", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling rustix v0.36.17
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling procfs v0.15.1
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking sysinfo v0.29.10
[INFO] [stderr]     Checking nu-system v0.87.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.12s
[INFO] running `Command { std: "docker" "inspect" "5ae1407d859eb7b8f3d281b3353607eda97da365af91ef86a8f8064bb631ad81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ae1407d859eb7b8f3d281b3353607eda97da365af91ef86a8f8064bb631ad81", kill_on_drop: false }`
[INFO] [stdout] 5ae1407d859eb7b8f3d281b3353607eda97da365af91ef86a8f8064bb631ad81
[INFO] checking nu-system-0.87.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate nu-system 0.87.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate nu-system 0.87.1 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 nu-system 0.87.1
[INFO] finished tweaking crates.io crate nu-system 0.87.1
[INFO] tweaked toml for crates.io crate nu-system 0.87.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate nu-system 0.87.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] c0245684d667a96e0b6046dd6cb7341cf7d2851d53e8b6f4846f35fa8e4cb28b
[INFO] running `Command { std: "docker" "start" "-a" "c0245684d667a96e0b6046dd6cb7341cf7d2851d53e8b6f4846f35fa8e4cb28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0245684d667a96e0b6046dd6cb7341cf7d2851d53e8b6f4846f35fa8e4cb28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0245684d667a96e0b6046dd6cb7341cf7d2851d53e8b6f4846f35fa8e4cb28b", kill_on_drop: false }`
[INFO] [stdout] c0245684d667a96e0b6046dd6cb7341cf7d2851d53e8b6f4846f35fa8e4cb28b
[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] c2c3d432651fa4f288429174903f6a031f3da570e48105965f14537a9efd40ad
[INFO] running `Command { std: "docker" "start" "-a" "c2c3d432651fa4f288429174903f6a031f3da570e48105965f14537a9efd40ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling rustix v0.36.17
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]    Compiling procfs v0.15.1
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking sysinfo v0.29.10
[INFO] [stderr]     Checking nu-system v0.87.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "c2c3d432651fa4f288429174903f6a031f3da570e48105965f14537a9efd40ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c3d432651fa4f288429174903f6a031f3da570e48105965f14537a9efd40ad", kill_on_drop: false }`
[INFO] [stdout] c2c3d432651fa4f288429174903f6a031f3da570e48105965f14537a9efd40ad