[INFO] cloning repository https://github.com/xoac/tokio-retrying-tcpstream [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xoac/tokio-retrying-tcpstream" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxoac%2Ftokio-retrying-tcpstream", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxoac%2Ftokio-retrying-tcpstream'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e364c5af304c5d1d5f3d084267d535fe24f4691f [INFO] checking xoac/tokio-retrying-tcpstream against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxoac%2Ftokio-retrying-tcpstream" "/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/xoac/tokio-retrying-tcpstream 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/xoac/tokio-retrying-tcpstream [INFO] finished tweaking git repo https://github.com/xoac/tokio-retrying-tcpstream [INFO] tweaked toml for git repo https://github.com/xoac/tokio-retrying-tcpstream written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/xoac/tokio-retrying-tcpstream 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] Downloading crates ... [INFO] [stderr] Downloaded tokio-threadpool 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 31baf5f8821b865581f2dab3998aa91f722259ec493d34379f697e78b49b3b99 [INFO] running `Command { std: "docker" "start" "-a" "31baf5f8821b865581f2dab3998aa91f722259ec493d34379f697e78b49b3b99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "31baf5f8821b865581f2dab3998aa91f722259ec493d34379f697e78b49b3b99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31baf5f8821b865581f2dab3998aa91f722259ec493d34379f697e78b49b3b99", kill_on_drop: false }` [INFO] [stdout] 31baf5f8821b865581f2dab3998aa91f722259ec493d34379f697e78b49b3b99 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 55cd422c665835adeeff406ff5a88842a80b653a8ac0b516ed31d18280fdf2fc [INFO] running `Command { std: "docker" "start" "-a" "55cd422c665835adeeff406ff5a88842a80b653a8ac0b516ed31d18280fdf2fc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Checking tokio-executor v0.1.9 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking lock_api v0.3.3 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking tokio-timer v0.2.12 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.12.0 [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking tokio-threadpool v0.1.17 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-reactor v0.1.11 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-udp v0.1.5 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-retrying-tcpstream v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `mio` is imported redundantly [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use mio; [INFO] [stdout] | ^^^ the item `mio` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `mio` is imported redundantly [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use mio; [INFO] [stdout] | ^^^ the item `mio` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:136:34 [INFO] [stdout] | [INFO] [stdout] 136 | debug_assert!(r, self.settings.nodelay); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `debug_assert!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 136 | debug_assert!(r, "{}", self.settings.nodelay); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:136:34 [INFO] [stdout] | [INFO] [stdout] 136 | debug_assert!(r, self.settings.nodelay); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `debug_assert!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 136 | debug_assert!(r, "{}", self.settings.nodelay); [INFO] [stdout] | +++++ [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 1.30s [INFO] running `Command { std: "docker" "inspect" "55cd422c665835adeeff406ff5a88842a80b653a8ac0b516ed31d18280fdf2fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55cd422c665835adeeff406ff5a88842a80b653a8ac0b516ed31d18280fdf2fc", kill_on_drop: false }` [INFO] [stdout] 55cd422c665835adeeff406ff5a88842a80b653a8ac0b516ed31d18280fdf2fc