[INFO] cloning repository https://github.com/nanocryk/async-loop-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nanocryk/async-loop-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanocryk%2Fasync-loop-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanocryk%2Fasync-loop-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e685ecab0869fd43f1b535fa8a8863cd7a5f395d
[INFO] checking nanocryk/async-loop-examples against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanocryk%2Fasync-loop-examples" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nanocryk/async-loop-examples on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nanocryk/async-loop-examples
[INFO] finished tweaking git repo https://github.com/nanocryk/async-loop-examples
[INFO] tweaked toml for git repo https://github.com/nanocryk/async-loop-examples written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nanocryk/async-loop-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.4
[INFO] [stderr]   Downloaded libc v0.2.88
[INFO] [stderr]   Downloaded regex v1.4.4
[INFO] [stderr]   Downloaded serde v1.0.124
[INFO] [stderr]   Downloaded syn v1.0.64
[INFO] [stderr]   Downloaded mio v0.7.9
[INFO] [stderr]   Downloaded tokio-util v0.6.4
[INFO] [stderr]   Downloaded pin-project-internal v1.0.5
[INFO] [stderr]   Downloaded tokio v1.3.0
[INFO] [stderr]   Downloaded pin-project v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 237d126a76e094b152933c150be30f65dc28dd2158e2ae29cc8658cac85e78c2
[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" "237d126a76e094b152933c150be30f65dc28dd2158e2ae29cc8658cac85e78c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "237d126a76e094b152933c150be30f65dc28dd2158e2ae29cc8658cac85e78c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "237d126a76e094b152933c150be30f65dc28dd2158e2ae29cc8658cac85e78c2", kill_on_drop: false }`
[INFO] [stdout] 237d126a76e094b152933c150be30f65dc28dd2158e2ae29cc8658cac85e78c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 209bb9e16a5d333a7ac962da009c2cc8e11e65bb39f3af5bd2416f9373e95574
[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" "209bb9e16a5d333a7ac962da009c2cc8e11e65bb39f3af5bd2416f9373e95574", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.3.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.4.4
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.2.17
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking tokio-util v0.6.4
[INFO] [stderr]     Checking fizzbuzz v0.1.0 (/opt/rustwide/workdir/fizzbuzz)
[INFO] [stderr]     Checking tokio-stream v0.1.4
[INFO] [stderr]     Checking request v0.1.0 (/opt/rustwide/workdir/request)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.60s
[INFO] running `Command { std: "docker" "inspect" "209bb9e16a5d333a7ac962da009c2cc8e11e65bb39f3af5bd2416f9373e95574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209bb9e16a5d333a7ac962da009c2cc8e11e65bb39f3af5bd2416f9373e95574", kill_on_drop: false }`
[INFO] [stdout] 209bb9e16a5d333a7ac962da009c2cc8e11e65bb39f3af5bd2416f9373e95574