[INFO] cloning repository https://github.com/FauxFaux/async-echo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FauxFaux/async-echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fasync-echo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fasync-echo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8432629d5706f683192a043251403b3b4a53b0d
[INFO] checking FauxFaux/async-echo against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fasync-echo" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/async-echo on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FauxFaux/async-echo
[INFO] finished tweaking git repo https://github.com/FauxFaux/async-echo
[INFO] tweaked toml for git repo https://github.com/FauxFaux/async-echo written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/async-echo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-task v0.3.3
[INFO] [stderr]   Downloaded futures-macro v0.3.3
[INFO] [stderr]   Downloaded futures-sink v0.3.3
[INFO] [stderr]   Downloaded futures-io v0.3.3
[INFO] [stderr]   Downloaded futures-util v0.3.3
[INFO] [stderr]   Downloaded futures-executor v0.3.3
[INFO] [stderr]   Downloaded futures-channel v0.3.3
[INFO] [stderr]   Downloaded futures v0.3.3
[INFO] [stderr]   Downloaded futures-core v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23c1165daf43e66084e08cc3753ee3b527a0058ef725a66538d92defcc7d90c7
[INFO] running `Command { std: "docker" "start" "-a" "23c1165daf43e66084e08cc3753ee3b527a0058ef725a66538d92defcc7d90c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23c1165daf43e66084e08cc3753ee3b527a0058ef725a66538d92defcc7d90c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c1165daf43e66084e08cc3753ee3b527a0058ef725a66538d92defcc7d90c7", kill_on_drop: false }`
[INFO] [stdout] 23c1165daf43e66084e08cc3753ee3b527a0058ef725a66538d92defcc7d90c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 166eafdc0cc1aa41132e1831e3059cc4bdcb6df2ea6f669cc3731a7dfbea0f15
[INFO] running `Command { std: "docker" "start" "-a" "166eafdc0cc1aa41132e1831e3059cc4bdcb6df2ea6f669cc3731a7dfbea0f15", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.3
[INFO] [stderr]     Checking futures-sink v0.3.3
[INFO] [stderr]     Checking futures-io v0.3.3
[INFO] [stderr]     Checking futures-task v0.3.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking ctrlc v3.1.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking futures-channel v0.3.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.3
[INFO] [stderr]     Checking futures-util v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.3
[INFO] [stderr]     Checking futures v0.3.3
[INFO] [stderr]     Checking async-echo v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.55s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking async-echo v0.1.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "166eafdc0cc1aa41132e1831e3059cc4bdcb6df2ea6f669cc3731a7dfbea0f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "166eafdc0cc1aa41132e1831e3059cc4bdcb6df2ea6f669cc3731a7dfbea0f15", kill_on_drop: false }`
[INFO] [stdout] 166eafdc0cc1aa41132e1831e3059cc4bdcb6df2ea6f669cc3731a7dfbea0f15