[INFO] cloning repository https://github.com/knknkn1162/rust_server_test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/knknkn1162/rust_server_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Frust_server_test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Frust_server_test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 08eb0ad0f81838ed253bb2870c88af01c51a104d [INFO] checking knknkn1162/rust_server_test against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Frust_server_test" "/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/knknkn1162/rust_server_test 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/knknkn1162/rust_server_test [INFO] finished tweaking git repo https://github.com/knknkn1162/rust_server_test [INFO] tweaked toml for git repo https://github.com/knknkn1162/rust_server_test written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/knknkn1162/rust_server_test 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 rand v0.3.18 [INFO] [stderr] Downloaded tokio-io v0.1.4 [INFO] [stderr] Downloaded futures v0.1.17 [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] 137bd65f78ca3cdec9a4e314dc894e5405b6ea73cab1a3d9a320fd1e15c8df91 [INFO] running `Command { std: "docker" "start" "-a" "137bd65f78ca3cdec9a4e314dc894e5405b6ea73cab1a3d9a320fd1e15c8df91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "137bd65f78ca3cdec9a4e314dc894e5405b6ea73cab1a3d9a320fd1e15c8df91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "137bd65f78ca3cdec9a4e314dc894e5405b6ea73cab1a3d9a320fd1e15c8df91", kill_on_drop: false }` [INFO] [stdout] 137bd65f78ca3cdec9a4e314dc894e5405b6ea73cab1a3d9a320fd1e15c8df91 [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] b81fcf5e10ed660c638b5d1160bbcbe8c0bf0e6c13ce38241b36bb65c25b7631 [INFO] running `Command { std: "docker" "start" "-a" "b81fcf5e10ed660c638b5d1160bbcbe8c0bf0e6c13ce38241b36bb65c25b7631", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.33 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking byteorder v1.1.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking futures v0.1.17 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking lazycell v0.5.1 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking rand v0.3.18 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking mio v0.6.11 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking tokio-io v0.1.4 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking simple_line v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Future` [INFO] [stdout] --> src/main.rs:16:23 [INFO] [stdout] | [INFO] [stdout] 16 | use futures::{future, Future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Future` [INFO] [stdout] --> src/main.rs:16:23 [INFO] [stdout] | [INFO] [stdout] 16 | use futures::{future, Future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 151 | let mut server = TcpServer::new(Http, addr); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 151 | let mut server = TcpServer::new(Http, addr); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.81s [INFO] running `Command { std: "docker" "inspect" "b81fcf5e10ed660c638b5d1160bbcbe8c0bf0e6c13ce38241b36bb65c25b7631", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b81fcf5e10ed660c638b5d1160bbcbe8c0bf0e6c13ce38241b36bb65c25b7631", kill_on_drop: false }` [INFO] [stdout] b81fcf5e10ed660c638b5d1160bbcbe8c0bf0e6c13ce38241b36bb65c25b7631 [INFO] checking knknkn1162/rust_server_test against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Frust_server_test" "/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/knknkn1162/rust_server_test 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/knknkn1162/rust_server_test [INFO] finished tweaking git repo https://github.com/knknkn1162/rust_server_test [INFO] tweaked toml for git repo https://github.com/knknkn1162/rust_server_test written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/knknkn1162/rust_server_test 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] 55955e2fb988b73e5e3c6a8cf4c9619fc6d9532c98bf4ec8ef3a6b3dafa3ab25 [INFO] running `Command { std: "docker" "start" "-a" "55955e2fb988b73e5e3c6a8cf4c9619fc6d9532c98bf4ec8ef3a6b3dafa3ab25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "55955e2fb988b73e5e3c6a8cf4c9619fc6d9532c98bf4ec8ef3a6b3dafa3ab25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55955e2fb988b73e5e3c6a8cf4c9619fc6d9532c98bf4ec8ef3a6b3dafa3ab25", kill_on_drop: false }` [INFO] [stdout] 55955e2fb988b73e5e3c6a8cf4c9619fc6d9532c98bf4ec8ef3a6b3dafa3ab25 [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] a921f1c5357457bb84cbff8fff9b00c60981c175878a17eb4d3f27cecf92ce4a [INFO] running `Command { std: "docker" "start" "-a" "a921f1c5357457bb84cbff8fff9b00c60981c175878a17eb4d3f27cecf92ce4a", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.33 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking futures v0.1.17 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking byteorder v1.1.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking lazycell v0.5.1 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking rand v0.3.18 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking mio v0.6.11 [INFO] [stderr] Checking tokio-io v0.1.4 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking simple_line v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Future` [INFO] [stdout] --> src/main.rs:16:23 [INFO] [stdout] | [INFO] [stdout] 16 | use futures::{future, Future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Future` [INFO] [stdout] --> src/main.rs:16:23 [INFO] [stdout] | [INFO] [stdout] 16 | use futures::{future, Future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 151 | let mut server = TcpServer::new(Http, addr); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 151 | let mut server = TcpServer::new(Http, addr); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s [INFO] running `Command { std: "docker" "inspect" "a921f1c5357457bb84cbff8fff9b00c60981c175878a17eb4d3f27cecf92ce4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a921f1c5357457bb84cbff8fff9b00c60981c175878a17eb4d3f27cecf92ce4a", kill_on_drop: false }` [INFO] [stdout] a921f1c5357457bb84cbff8fff9b00c60981c175878a17eb4d3f27cecf92ce4a