[INFO] cloning repository https://github.com/00xc/slabfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/00xc/slabfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00xc%2Fslabfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00xc%2Fslabfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db03c21a62803f15755bf8bc0b062533e05cac47
[INFO] checking 00xc/slabfs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00xc%2Fslabfs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/00xc/slabfs 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 git repo https://github.com/00xc/slabfs
[INFO] finished tweaking git repo https://github.com/00xc/slabfs
[INFO] tweaked toml for git repo https://github.com/00xc/slabfs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/00xc/slabfs 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vmm-sys-util v0.10.0
[INFO] [stderr]   Downloaded vm-memory v0.9.0
[INFO] [stderr]   Downloaded io-uring v0.5.13
[INFO] [stderr]   Downloaded tokio-uring v0.4.0
[INFO] [stderr]   Downloaded fuse-backend-rs v0.10.4
[INFO] [stderr]   Downloaded fastcmp v1.0.1
[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] adcc62f86499974235a92e0068e72accf82298d9ba6d83e29570d0bd8e5e70bc
[INFO] running `Command { std: "docker" "start" "-a" "adcc62f86499974235a92e0068e72accf82298d9ba6d83e29570d0bd8e5e70bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adcc62f86499974235a92e0068e72accf82298d9ba6d83e29570d0bd8e5e70bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adcc62f86499974235a92e0068e72accf82298d9ba6d83e29570d0bd8e5e70bc", kill_on_drop: false }`
[INFO] [stdout] adcc62f86499974235a92e0068e72accf82298d9ba6d83e29570d0bd8e5e70bc
[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] 971c64af3960cc203909c6913d365387035cd3d79925b3ac6dfb48069badc652
[INFO] running `Command { std: "docker" "start" "-a" "971c64af3960cc203909c6913d365387035cd3d79925b3ac6dfb48069badc652", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling io-uring v0.5.13
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling fastcmp v1.0.1
[INFO] [stderr]    Compiling fuse-backend-rs v0.10.4
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking vmm-sys-util v0.10.0
[INFO] [stderr]     Checking vm-memory v0.9.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking tokio-uring v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking caps v0.5.5
[INFO] [stderr]     Checking slabfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.94s
[INFO] running `Command { std: "docker" "inspect" "971c64af3960cc203909c6913d365387035cd3d79925b3ac6dfb48069badc652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "971c64af3960cc203909c6913d365387035cd3d79925b3ac6dfb48069badc652", kill_on_drop: false }`
[INFO] [stdout] 971c64af3960cc203909c6913d365387035cd3d79925b3ac6dfb48069badc652
[INFO] checking 00xc/slabfs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00xc%2Fslabfs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/00xc/slabfs 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 git repo https://github.com/00xc/slabfs
[INFO] finished tweaking git repo https://github.com/00xc/slabfs
[INFO] tweaked toml for git repo https://github.com/00xc/slabfs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/00xc/slabfs 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] 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] 1baabf260cbd6e6372bb407a4e18a3af0d24575320a83c4b9b00c54789e03b86
[INFO] running `Command { std: "docker" "start" "-a" "1baabf260cbd6e6372bb407a4e18a3af0d24575320a83c4b9b00c54789e03b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1baabf260cbd6e6372bb407a4e18a3af0d24575320a83c4b9b00c54789e03b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1baabf260cbd6e6372bb407a4e18a3af0d24575320a83c4b9b00c54789e03b86", kill_on_drop: false }`
[INFO] [stdout] 1baabf260cbd6e6372bb407a4e18a3af0d24575320a83c4b9b00c54789e03b86
[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] 4d4880eb504324fd61011f9d74a7708ab369640773d76fc9c11a1db93cec57d7
[INFO] running `Command { std: "docker" "start" "-a" "4d4880eb504324fd61011f9d74a7708ab369640773d76fc9c11a1db93cec57d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling io-uring v0.5.13
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling fuse-backend-rs v0.10.4
[INFO] [stderr]    Compiling fastcmp v1.0.1
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking vm-memory v0.9.0
[INFO] [stderr]     Checking vmm-sys-util v0.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking tokio-uring v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking caps v0.5.5
[INFO] [stderr]     Checking slabfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.10s
[INFO] running `Command { std: "docker" "inspect" "4d4880eb504324fd61011f9d74a7708ab369640773d76fc9c11a1db93cec57d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4880eb504324fd61011f9d74a7708ab369640773d76fc9c11a1db93cec57d7", kill_on_drop: false }`
[INFO] [stdout] 4d4880eb504324fd61011f9d74a7708ab369640773d76fc9c11a1db93cec57d7