[INFO] cloning repository https://github.com/techno-tanoC/knock_down [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/techno-tanoC/knock_down" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 053dbcc47b0803e077c1f397cb8c8ef4354c89f0 [INFO] checking techno-tanoC/knock_down against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down" "/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/techno-tanoC/knock_down 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-5-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/techno-tanoC/knock_down [INFO] finished tweaking git repo https://github.com/techno-tanoC/knock_down [INFO] tweaked toml for git repo https://github.com/techno-tanoC/knock_down written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/techno-tanoC/knock_down 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 socket2 v0.3.11 [INFO] [stderr] Downloaded miow v0.3.3 [INFO] [stderr] Downloaded mio-named-pipes v0.1.6 [INFO] [stderr] Downloaded tokio v0.2.14 [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] e5c11a2cfd82b96e5226cb9d1f84964583b8751b2c31caac96a0dd51b8bc3df1 [INFO] running `Command { std: "docker" "start" "-a" "e5c11a2cfd82b96e5226cb9d1f84964583b8751b2c31caac96a0dd51b8bc3df1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5c11a2cfd82b96e5226cb9d1f84964583b8751b2c31caac96a0dd51b8bc3df1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5c11a2cfd82b96e5226cb9d1f84964583b8751b2c31caac96a0dd51b8bc3df1", kill_on_drop: false }` [INFO] [stdout] e5c11a2cfd82b96e5226cb9d1f84964583b8751b2c31caac96a0dd51b8bc3df1 [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] f5e680c4da81804eeb1ef9806d8cfe5aef8f1e002fb5027eef51f4989cffa2b4 [INFO] running `Command { std: "docker" "start" "-a" "f5e680c4da81804eeb1ef9806d8cfe5aef8f1e002fb5027eef51f4989cffa2b4", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking arc-swap v0.4.4 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.14 [INFO] [stderr] Checking knock_down v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.93s [INFO] running `Command { std: "docker" "inspect" "f5e680c4da81804eeb1ef9806d8cfe5aef8f1e002fb5027eef51f4989cffa2b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5e680c4da81804eeb1ef9806d8cfe5aef8f1e002fb5027eef51f4989cffa2b4", kill_on_drop: false }` [INFO] [stdout] f5e680c4da81804eeb1ef9806d8cfe5aef8f1e002fb5027eef51f4989cffa2b4 [INFO] checking techno-tanoC/knock_down against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down" "/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/techno-tanoC/knock_down 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-5-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/techno-tanoC/knock_down [INFO] finished tweaking git repo https://github.com/techno-tanoC/knock_down [INFO] tweaked toml for git repo https://github.com/techno-tanoC/knock_down written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/techno-tanoC/knock_down 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] 9d82917a3af4cd3efbac0ddb811826b3a93f08c1e0591366ff8de429e07334ee [INFO] running `Command { std: "docker" "start" "-a" "9d82917a3af4cd3efbac0ddb811826b3a93f08c1e0591366ff8de429e07334ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d82917a3af4cd3efbac0ddb811826b3a93f08c1e0591366ff8de429e07334ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d82917a3af4cd3efbac0ddb811826b3a93f08c1e0591366ff8de429e07334ee", kill_on_drop: false }` [INFO] [stdout] 9d82917a3af4cd3efbac0ddb811826b3a93f08c1e0591366ff8de429e07334ee [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] 3dbdb3cff67fde9ce14af17b0590836689fe3067e73537b3828f4adf256a5f54 [INFO] running `Command { std: "docker" "start" "-a" "3dbdb3cff67fde9ce14af17b0590836689fe3067e73537b3828f4adf256a5f54", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking arc-swap v0.4.4 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.14 [INFO] [stderr] Checking knock_down v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.14s [INFO] running `Command { std: "docker" "inspect" "3dbdb3cff67fde9ce14af17b0590836689fe3067e73537b3828f4adf256a5f54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3dbdb3cff67fde9ce14af17b0590836689fe3067e73537b3828f4adf256a5f54", kill_on_drop: false }` [INFO] [stdout] 3dbdb3cff67fde9ce14af17b0590836689fe3067e73537b3828f4adf256a5f54