[INFO] cloning repository https://github.com/j-kk/AtomicRegister
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j-kk/AtomicRegister" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-kk%2FAtomicRegister", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-kk%2FAtomicRegister'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73fd122562e8401fc79ac4b1554a7fc9307e3f87
[INFO] checking j-kk/AtomicRegister against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-kk%2FAtomicRegister" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j-kk/AtomicRegister on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j-kk/AtomicRegister
[INFO] finished tweaking git repo https://github.com/j-kk/AtomicRegister
[INFO] tweaked toml for git repo https://github.com/j-kk/AtomicRegister written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/j-kk/AtomicRegister 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-big-array v0.3.3
[INFO] [stderr]   Downloaded concurrent-queue v2.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2121b1ced00329f2cc4c0d142376eb356923b73863dbbd4566f76b880ae2ef3
[INFO] running `Command { std: "docker" "start" "-a" "e2121b1ced00329f2cc4c0d142376eb356923b73863dbbd4566f76b880ae2ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2121b1ced00329f2cc4c0d142376eb356923b73863dbbd4566f76b880ae2ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2121b1ced00329f2cc4c0d142376eb356923b73863dbbd4566f76b880ae2ef3", kill_on_drop: false }`
[INFO] [stdout] e2121b1ced00329f2cc4c0d142376eb356923b73863dbbd4566f76b880ae2ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e759921ec2e3eae4f824d705faec7a609bf1916f6408379eacca94ca887fd5f7
[INFO] running `Command { std: "docker" "start" "-a" "e759921ec2e3eae4f824d705faec7a609bf1916f6408379eacca94ca887fd5f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking concurrent-queue v2.3.0
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling serde_repr v0.1.16
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking serde-big-array v0.3.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking assignment-2-solution v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "e759921ec2e3eae4f824d705faec7a609bf1916f6408379eacca94ca887fd5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e759921ec2e3eae4f824d705faec7a609bf1916f6408379eacca94ca887fd5f7", kill_on_drop: false }`
[INFO] [stdout] e759921ec2e3eae4f824d705faec7a609bf1916f6408379eacca94ca887fd5f7