[INFO] cloning repository https://github.com/ryskit/tokio-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryskit/tokio-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryskit%2Ftokio-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryskit%2Ftokio-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 71048d8827ee9768ff2aed03e701a7b8cd5f4749 [INFO] testing ryskit/tokio-tutorial against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryskit%2Ftokio-tutorial" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ryskit/tokio-tutorial on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ryskit/tokio-tutorial [INFO] finished tweaking git repo https://github.com/ryskit/tokio-tutorial [INFO] tweaked toml for git repo https://github.com/ryskit/tokio-tutorial written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/ryskit/tokio-tutorial already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2fee1e50e1f6adb7d577564262a1a05a1e80fe027b5d96ec1222b79e4d78359c [INFO] running `Command { std: "docker" "start" "-a" "2fee1e50e1f6adb7d577564262a1a05a1e80fe027b5d96ec1222b79e4d78359c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2fee1e50e1f6adb7d577564262a1a05a1e80fe027b5d96ec1222b79e4d78359c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2fee1e50e1f6adb7d577564262a1a05a1e80fe027b5d96ec1222b79e4d78359c", kill_on_drop: false }` [INFO] [stdout] 2fee1e50e1f6adb7d577564262a1a05a1e80fe027b5d96ec1222b79e4d78359c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c95e46518436d920ba35674ff298460509ecd5a084f44fd56bf8ba5535cecc83 [INFO] running `Command { std: "docker" "start" "-a" "c95e46518436d920ba35674ff298460509ecd5a084f44fd56bf8ba5535cecc83", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling libc v0.2.113 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling serde v1.0.133 [INFO] [stderr] Compiling pin-project-lite v0.2.8 [INFO] [stderr] Compiling once_cell v1.9.0 [INFO] [stderr] Compiling futures-core v0.3.19 [INFO] [stderr] Compiling serde_json v1.0.75 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling tracing-core v0.1.21 [INFO] [stderr] Compiling instant v0.1.12 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling sharded-slab v0.1.4 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling quote v1.0.14 [INFO] [stderr] Compiling thread_local v1.1.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling tracing-log v0.1.2 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling mio v0.7.14 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling atoi v0.3.3 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.18 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Compiling async-stream-impl v0.3.2 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Compiling tokio v1.15.0 [INFO] [stderr] Compiling async-stream v0.3.2 [INFO] [stderr] Compiling pin-project v1.0.10 [INFO] [stderr] Compiling tracing v0.1.29 [INFO] [stderr] Compiling tracing-futures v0.2.5 [INFO] [stderr] Compiling tracing-subscriber v0.2.25 [INFO] [stderr] Compiling structopt v0.3.26 [INFO] [stderr] Compiling tokio-stream v0.1.8 [INFO] [stderr] Compiling mini-redis v0.4.1 [INFO] [stderr] Compiling tokio-tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.40s [INFO] running `Command { std: "docker" "inspect" "c95e46518436d920ba35674ff298460509ecd5a084f44fd56bf8ba5535cecc83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c95e46518436d920ba35674ff298460509ecd5a084f44fd56bf8ba5535cecc83", kill_on_drop: false }` [INFO] [stdout] c95e46518436d920ba35674ff298460509ecd5a084f44fd56bf8ba5535cecc83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5c532bc1a79aa5a58e46d0df376d2d29b905082b0f261602ef86770b592f226e [INFO] running `Command { std: "docker" "start" "-a" "5c532bc1a79aa5a58e46d0df376d2d29b905082b0f261602ef86770b592f226e", kill_on_drop: false }` [INFO] [stderr] Compiling tokio-tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> examples/hello-redis.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | let res = client.get("hello").await; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0373]: async block may outlive the current function, but it borrows `client`, which is owned by the current function [INFO] [stdout] --> examples/hello-redis.rs:8:33 [INFO] [stdout] | [INFO] [stdout] 8 | let t1 = tokio::spawn(async { [INFO] [stdout] | _________________________________^ [INFO] [stdout] 9 | | let res = client.get("hello").await; [INFO] [stdout] | | ------ `client` is borrowed here [INFO] [stdout] 10 | | }); [INFO] [stdout] | |_____^ may outlive borrowed value `client` [INFO] [stdout] | [INFO] [stdout] = note: async blocks are not executed immediately and must either take a reference or ownership of outside variables they use [INFO] [stdout] help: to force the async block to take ownership of `client` (and any other referenced variables), use the `move` keyword [INFO] [stdout] | [INFO] [stdout] 8 | let t1 = tokio::spawn(async move { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0499]: cannot borrow `client` as mutable more than once at a time [INFO] [stdout] --> examples/hello-redis.rs:12:33 [INFO] [stdout] | [INFO] [stdout] 8 | let t1 = tokio::spawn(async { [INFO] [stdout] | ___________________________-_____- [INFO] [stdout] | |___________________________| [INFO] [stdout] | || [INFO] [stdout] 9 | || let res = client.get("hello").await; [INFO] [stdout] | || ------ first borrow occurs due to use of `client` in generator [INFO] [stdout] 10 | || }); [INFO] [stdout] | || - [INFO] [stdout] | ||_____| [INFO] [stdout] | |______first mutable borrow occurs here [INFO] [stdout] | argument requires that `client` is borrowed for `'static` [INFO] [stdout] 11 | [INFO] [stdout] 12 | let t2 = tokio::spawn(async { [INFO] [stdout] | __________________________________^ [INFO] [stdout] 13 | | client.set("foo", "bar".into()).await; [INFO] [stdout] | | ------ second borrow occurs due to use of `client` in generator [INFO] [stdout] 14 | | }); [INFO] [stdout] | |______^ second mutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0373, E0499. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0373`. [INFO] [stdout] [INFO] [stderr] error: could not compile `tokio-tutorial` due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "5c532bc1a79aa5a58e46d0df376d2d29b905082b0f261602ef86770b592f226e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c532bc1a79aa5a58e46d0df376d2d29b905082b0f261602ef86770b592f226e", kill_on_drop: false }` [INFO] [stdout] 5c532bc1a79aa5a58e46d0df376d2d29b905082b0f261602ef86770b592f226e