[INFO] cloning repository https://github.com/bobbbay/tarsier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bobbbay/tarsier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobbbay%2Ftarsier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobbbay%2Ftarsier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a10fb85c83b368fdc1883f14f5d267c197fa8a0
[INFO] checking bobbbay/tarsier against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobbbay%2Ftarsier" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bobbbay/tarsier 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] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/bobbbay/tarsier
[INFO] finished tweaking git repo https://github.com/bobbbay/tarsier
[INFO] tweaked toml for git repo https://github.com/bobbbay/tarsier written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bobbbay/tarsier 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 git repository `https://github.com/bobbbay/noptics`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded druid-derive v0.5.1
[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] 225e68595dac6daf5630fce4415c2b9e3eef75bc93468ce2864702f4e00bb965
[INFO] running `Command { std: "docker" "start" "-a" "225e68595dac6daf5630fce4415c2b9e3eef75bc93468ce2864702f4e00bb965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "225e68595dac6daf5630fce4415c2b9e3eef75bc93468ce2864702f4e00bb965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "225e68595dac6daf5630fce4415c2b9e3eef75bc93468ce2864702f4e00bb965", kill_on_drop: false }`
[INFO] [stdout] 225e68595dac6daf5630fce4415c2b9e3eef75bc93468ce2864702f4e00bb965
[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] 3a22dbe8faf8367775eafff4f6f6cdc4295636d0044337e9552a88720075103c
[INFO] running `Command { std: "docker" "start" "-a" "3a22dbe8faf8367775eafff4f6f6cdc4295636d0044337e9552a88720075103c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking futures-channel v0.3.28
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling syn v2.0.20
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling druid-derive v0.5.1
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking noptics v0.1.0 (https://github.com/bobbbay/noptics#26c3ee24)
[INFO] [stderr]     Checking tarsier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.83s
[INFO] running `Command { std: "docker" "inspect" "3a22dbe8faf8367775eafff4f6f6cdc4295636d0044337e9552a88720075103c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a22dbe8faf8367775eafff4f6f6cdc4295636d0044337e9552a88720075103c", kill_on_drop: false }`
[INFO] [stdout] 3a22dbe8faf8367775eafff4f6f6cdc4295636d0044337e9552a88720075103c
[INFO] checking bobbbay/tarsier against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobbbay%2Ftarsier" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bobbbay/tarsier 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] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/bobbbay/tarsier
[INFO] finished tweaking git repo https://github.com/bobbbay/tarsier
[INFO] tweaked toml for git repo https://github.com/bobbbay/tarsier written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bobbbay/tarsier 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-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] 8d11e57c36de840bd14c31561181443df1ecc5b40e11e3c3d8c56e390c0e6889
[INFO] running `Command { std: "docker" "start" "-a" "8d11e57c36de840bd14c31561181443df1ecc5b40e11e3c3d8c56e390c0e6889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d11e57c36de840bd14c31561181443df1ecc5b40e11e3c3d8c56e390c0e6889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d11e57c36de840bd14c31561181443df1ecc5b40e11e3c3d8c56e390c0e6889", kill_on_drop: false }`
[INFO] [stdout] 8d11e57c36de840bd14c31561181443df1ecc5b40e11e3c3d8c56e390c0e6889
[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] 7739d1fb867c668b30f3c0a157775046cb32bdef155bb2ee08158ef7b46686b4
[INFO] running `Command { std: "docker" "start" "-a" "7739d1fb867c668b30f3c0a157775046cb32bdef155bb2ee08158ef7b46686b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking futures-channel v0.3.28
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling syn v2.0.20
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling druid-derive v0.5.1
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking noptics v0.1.0 (https://github.com/bobbbay/noptics#26c3ee24)
[INFO] [stderr]     Checking tarsier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.69s
[INFO] running `Command { std: "docker" "inspect" "7739d1fb867c668b30f3c0a157775046cb32bdef155bb2ee08158ef7b46686b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7739d1fb867c668b30f3c0a157775046cb32bdef155bb2ee08158ef7b46686b4", kill_on_drop: false }`
[INFO] [stdout] 7739d1fb867c668b30f3c0a157775046cb32bdef155bb2ee08158ef7b46686b4