[INFO] cloning repository https://github.com/triangle-rustaceans/tokio-hops [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/triangle-rustaceans/tokio-hops" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriangle-rustaceans%2Ftokio-hops", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriangle-rustaceans%2Ftokio-hops'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 808f36192fab92f20d970facd4fc0215fb6ac4ee [INFO] checking triangle-rustaceans/tokio-hops against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriangle-rustaceans%2Ftokio-hops" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/triangle-rustaceans/tokio-hops on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/triangle-rustaceans/tokio-hops [INFO] finished tweaking git repo https://github.com/triangle-rustaceans/tokio-hops [INFO] tweaked toml for git repo https://github.com/triangle-rustaceans/tokio-hops written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/triangle-rustaceans/tokio-hops already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c05d6e11c7534e9a5798a56ae3ff295a3e3f6929ed890598634754b659743748 [INFO] running `Command { std: "docker" "start" "-a" "c05d6e11c7534e9a5798a56ae3ff295a3e3f6929ed890598634754b659743748", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c05d6e11c7534e9a5798a56ae3ff295a3e3f6929ed890598634754b659743748", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c05d6e11c7534e9a5798a56ae3ff295a3e3f6929ed890598634754b659743748", kill_on_drop: false }` [INFO] [stdout] c05d6e11c7534e9a5798a56ae3ff295a3e3f6929ed890598634754b659743748 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4cc92e6ffc560423bac7c66fe0c89e4bae3c9f0a27f9185fa28d8acfd2f2fa2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a4cc92e6ffc560423bac7c66fe0c89e4bae3c9f0a27f9185fa28d8acfd2f2fa2", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking byteorder v1.2.2 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking serde v1.0.50 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Checking tokio-timer v0.2.3 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking crossbeam-utils v0.3.2 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Checking crossbeam-epoch v0.4.1 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.32 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking atty v0.2.10 [INFO] [stderr] Compiling syn v0.13.7 [INFO] [stderr] Checking crossbeam-deque v0.3.1 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Checking bytes v0.4.7 [INFO] [stderr] Checking mio v0.6.14 [INFO] [stderr] Checking tokio-io v0.1.6 [INFO] [stderr] Checking tokio-threadpool v0.1.3 [INFO] [stderr] Checking tokio-reactor v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.0 [INFO] [stderr] Checking tokio-tcp v0.1.0 [INFO] [stderr] Checking tokio-udp v0.1.0 [INFO] [stderr] Checking tokio v0.1.6 [INFO] [stderr] Checking serde_json v1.0.17 [INFO] [stderr] Compiling serde_derive v1.0.50 [INFO] [stderr] Checking hops v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:121:29 [INFO] [stdout] | [INFO] [stdout] 121 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:121:29 [INFO] [stdout] | [INFO] [stdout] 121 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 39.48s [INFO] running `Command { std: "docker" "inspect" "a4cc92e6ffc560423bac7c66fe0c89e4bae3c9f0a27f9185fa28d8acfd2f2fa2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4cc92e6ffc560423bac7c66fe0c89e4bae3c9f0a27f9185fa28d8acfd2f2fa2", kill_on_drop: false }` [INFO] [stdout] a4cc92e6ffc560423bac7c66fe0c89e4bae3c9f0a27f9185fa28d8acfd2f2fa2