[INFO] cloning repository https://github.com/yujin97/my-redis [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yujin97/my-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Fmy-redis", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Fmy-redis'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 97cd2bedfc916583247f5ea5125ae091584013db [INFO] checking yujin97/my-redis against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Fmy-redis" "/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/yujin97/my-redis 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/yujin97/my-redis [INFO] finished tweaking git repo https://github.com/yujin97/my-redis [INFO] tweaked toml for git repo https://github.com/yujin97/my-redis written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yujin97/my-redis 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] 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] c163246975feda452e3fc94e497ffca071aaf74baf0d89d4a303ffff6eaaef8e [INFO] running `Command { std: "docker" "start" "-a" "c163246975feda452e3fc94e497ffca071aaf74baf0d89d4a303ffff6eaaef8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c163246975feda452e3fc94e497ffca071aaf74baf0d89d4a303ffff6eaaef8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c163246975feda452e3fc94e497ffca071aaf74baf0d89d4a303ffff6eaaef8e", kill_on_drop: false }` [INFO] [stdout] c163246975feda452e3fc94e497ffca071aaf74baf0d89d4a303ffff6eaaef8e [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] 6f2b66128469e6048405fcd6ed0b17acebf379b592e3d1fc1afb6c20ff7b19e5 [INFO] running `Command { std: "docker" "start" "-a" "6f2b66128469e6048405fcd6ed0b17acebf379b592e3d1fc1afb6c20ff7b19e5", kill_on_drop: false }` [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling syn v2.0.37 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking regex-syntax v0.7.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Checking memchr v2.6.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking sharded-slab v0.1.6 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.15 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking crossbeam v0.8.2 [INFO] [stderr] Checking chrono v0.4.31 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking regex-automata v0.3.8 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Checking regex v1.9.5 [INFO] [stderr] Checking tracing-serde v0.1.3 [INFO] [stderr] Compiling tracing-attributes v0.1.26 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking tokio-stream v0.1.14 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.20s [INFO] running `Command { std: "docker" "inspect" "6f2b66128469e6048405fcd6ed0b17acebf379b592e3d1fc1afb6c20ff7b19e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f2b66128469e6048405fcd6ed0b17acebf379b592e3d1fc1afb6c20ff7b19e5", kill_on_drop: false }` [INFO] [stdout] 6f2b66128469e6048405fcd6ed0b17acebf379b592e3d1fc1afb6c20ff7b19e5 [INFO] checking yujin97/my-redis against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Fmy-redis" "/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/yujin97/my-redis 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/yujin97/my-redis [INFO] finished tweaking git repo https://github.com/yujin97/my-redis [INFO] tweaked toml for git repo https://github.com/yujin97/my-redis written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/yujin97/my-redis 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] 834ba4758dfdc980f6e1b3a1c9c61fdaea8cb18aa64a922e7487d9532c88a510 [INFO] running `Command { std: "docker" "start" "-a" "834ba4758dfdc980f6e1b3a1c9c61fdaea8cb18aa64a922e7487d9532c88a510", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "834ba4758dfdc980f6e1b3a1c9c61fdaea8cb18aa64a922e7487d9532c88a510", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "834ba4758dfdc980f6e1b3a1c9c61fdaea8cb18aa64a922e7487d9532c88a510", kill_on_drop: false }` [INFO] [stdout] 834ba4758dfdc980f6e1b3a1c9c61fdaea8cb18aa64a922e7487d9532c88a510 [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] 9a9299dbf6ffde12b0f582efb345a8976ebf3a5f8a1d76965ca3d38a206db59d [INFO] running `Command { std: "docker" "start" "-a" "9a9299dbf6ffde12b0f582efb345a8976ebf3a5f8a1d76965ca3d38a206db59d", kill_on_drop: false }` [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking regex-syntax v0.7.5 [INFO] [stderr] Compiling syn v2.0.37 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking memchr v2.6.3 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking sharded-slab v0.1.6 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking crossbeam-epoch v0.9.15 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking regex-automata v0.3.8 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking crossbeam v0.8.2 [INFO] [stderr] Checking chrono v0.4.31 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking tracing-serde v0.1.3 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Checking regex v1.9.5 [INFO] [stderr] Compiling tracing-attributes v0.1.26 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking tokio-stream v0.1.14 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.22s [INFO] running `Command { std: "docker" "inspect" "9a9299dbf6ffde12b0f582efb345a8976ebf3a5f8a1d76965ca3d38a206db59d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a9299dbf6ffde12b0f582efb345a8976ebf3a5f8a1d76965ca3d38a206db59d", kill_on_drop: false }` [INFO] [stdout] 9a9299dbf6ffde12b0f582efb345a8976ebf3a5f8a1d76965ca3d38a206db59d