[INFO] cloning repository https://github.com/labooner/mini-redis [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/labooner/mini-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flabooner%2Fmini-redis", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flabooner%2Fmini-redis'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0eb17b2c5ec812c81998974df5e36695fa90bf71 [INFO] checking labooner/mini-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%2Flabooner%2Fmini-redis" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/labooner/mini-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/labooner/mini-redis [INFO] finished tweaking git repo https://github.com/labooner/mini-redis [INFO] tweaked toml for git repo https://github.com/labooner/mini-redis written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/labooner/mini-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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded mini-redis v0.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b4ab308d009c172a2032333551613c1d1370ef88f1c99c4326b1134233714b0e [INFO] running `Command { std: "docker" "start" "-a" "b4ab308d009c172a2032333551613c1d1370ef88f1c99c4326b1134233714b0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b4ab308d009c172a2032333551613c1d1370ef88f1c99c4326b1134233714b0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4ab308d009c172a2032333551613c1d1370ef88f1c99c4326b1134233714b0e", kill_on_drop: false }` [INFO] [stdout] b4ab308d009c172a2032333551613c1d1370ef88f1c99c4326b1134233714b0e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bb68fd213ff53b675ec1e42d48ba34bf42302fc05a296eacd50ce1cd0e686491 [INFO] running `Command { std: "docker" "start" "-a" "bb68fd213ff53b675ec1e42d48ba34bf42302fc05a296eacd50ce1cd0e686491", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.65 [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Compiling tokio v1.4.0 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Compiling pin-project-internal v1.0.6 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Compiling async-stream-impl v0.3.0 [INFO] [stderr] Checking async-stream v0.3.0 [INFO] [stderr] Checking tracing v0.1.25 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking tracing-subscriber v0.2.17 [INFO] [stderr] Checking pin-project v1.0.6 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tokio-stream v0.1.5 [INFO] [stderr] Checking mini-redis v0.4.0 [INFO] [stderr] Checking my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.86s [INFO] running `Command { std: "docker" "inspect" "bb68fd213ff53b675ec1e42d48ba34bf42302fc05a296eacd50ce1cd0e686491", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb68fd213ff53b675ec1e42d48ba34bf42302fc05a296eacd50ce1cd0e686491", kill_on_drop: false }` [INFO] [stdout] bb68fd213ff53b675ec1e42d48ba34bf42302fc05a296eacd50ce1cd0e686491 [INFO] checking labooner/mini-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%2Flabooner%2Fmini-redis" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/labooner/mini-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/labooner/mini-redis [INFO] finished tweaking git repo https://github.com/labooner/mini-redis [INFO] tweaked toml for git repo https://github.com/labooner/mini-redis written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/labooner/mini-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fe3ea38d0d18b555e5ccbb7d5fd03b3ca1e12a13d38e32986093021470b041aa [INFO] running `Command { std: "docker" "start" "-a" "fe3ea38d0d18b555e5ccbb7d5fd03b3ca1e12a13d38e32986093021470b041aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe3ea38d0d18b555e5ccbb7d5fd03b3ca1e12a13d38e32986093021470b041aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe3ea38d0d18b555e5ccbb7d5fd03b3ca1e12a13d38e32986093021470b041aa", kill_on_drop: false }` [INFO] [stdout] fe3ea38d0d18b555e5ccbb7d5fd03b3ca1e12a13d38e32986093021470b041aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 72ec89e1355c4986cdc850a4fca84394cd81f4030fcc7624ef2bb20c709415cb [INFO] running `Command { std: "docker" "start" "-a" "72ec89e1355c4986cdc850a4fca84394cd81f4030fcc7624ef2bb20c709415cb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.65 [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Compiling tokio v1.4.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling pin-project-internal v1.0.6 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Compiling async-stream-impl v0.3.0 [INFO] [stderr] Checking async-stream v0.3.0 [INFO] [stderr] Checking pin-project v1.0.6 [INFO] [stderr] Checking tracing v0.1.25 [INFO] [stderr] Checking tracing-subscriber v0.2.17 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking tokio-stream v0.1.5 [INFO] [stderr] Checking mini-redis v0.4.0 [INFO] [stderr] Checking my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.99s [INFO] running `Command { std: "docker" "inspect" "72ec89e1355c4986cdc850a4fca84394cd81f4030fcc7624ef2bb20c709415cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72ec89e1355c4986cdc850a4fca84394cd81f4030fcc7624ef2bb20c709415cb", kill_on_drop: false }` [INFO] [stdout] 72ec89e1355c4986cdc850a4fca84394cd81f4030fcc7624ef2bb20c709415cb