[INFO] cloning repository https://github.com/maniacalmm/tokio-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maniacalmm/tokio-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaniacalmm%2Ftokio-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaniacalmm%2Ftokio-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba5b987a617d3a211605027b1f732d07f9378085
[INFO] checking maniacalmm/tokio-examples against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaniacalmm%2Ftokio-examples" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maniacalmm/tokio-examples on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maniacalmm/tokio-examples
[INFO] finished tweaking git repo https://github.com/maniacalmm/tokio-examples
[INFO] tweaked toml for git repo https://github.com/maniacalmm/tokio-examples written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/maniacalmm/tokio-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a682e61d4c260f53aa7d39da056847d8f1a6260b06fa19d9a3e417067f47073
[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" "4a682e61d4c260f53aa7d39da056847d8f1a6260b06fa19d9a3e417067f47073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a682e61d4c260f53aa7d39da056847d8f1a6260b06fa19d9a3e417067f47073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a682e61d4c260f53aa7d39da056847d8f1a6260b06fa19d9a3e417067f47073", kill_on_drop: false }`
[INFO] [stdout] 4a682e61d4c260f53aa7d39da056847d8f1a6260b06fa19d9a3e417067f47073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5d050f2f079cc7a6b2dcae63d05ae203b8544cb128a768c6f5eabb788f6a136
[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" "a5d050f2f079cc7a6b2dcae63d05ae203b8544cb128a768c6f5eabb788f6a136", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.26
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-sync v0.1.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.13
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio v0.1.18
[INFO] [stderr]     Checking sketch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/echo.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> examples/hello_world.rs:6:33
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `read` in this scope
[INFO] [stdout]   --> examples/connect.rs:31:22
[INFO] [stdout]    |
[INFO] [stdout] 31 |     thread::spawn(|| read)
[INFO] [stdout]    |                      ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 6  | use core::ptr::read;
[INFO] [stdout]    |
[INFO] [stdout] 6  | use crate::stream::futures_ordered::fmt::string::ptr::read;
[INFO] [stdout]    |
[INFO] [stdout] 6  | use crate::thread::imp::os::path::fs::read;
[INFO] [stdout]    |
[INFO] [stdout] 6  | use std::fs::read;
[INFO] [stdout]    |
[INFO] [stdout]      and 4 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> examples/connect.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/connect.rs:14:29
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sketch`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a5d050f2f079cc7a6b2dcae63d05ae203b8544cb128a768c6f5eabb788f6a136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d050f2f079cc7a6b2dcae63d05ae203b8544cb128a768c6f5eabb788f6a136", kill_on_drop: false }`
[INFO] [stdout] a5d050f2f079cc7a6b2dcae63d05ae203b8544cb128a768c6f5eabb788f6a136