[INFO] cloning repository https://github.com/lucaszanella/async_smoltcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucaszanella/async_smoltcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fasync_smoltcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fasync_smoltcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04914a43018d2549b3e4767ed9465a660444f81f
[INFO] testing lucaszanella/async_smoltcp against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fasync_smoltcp" "/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/lucaszanella/async_smoltcp on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucaszanella/async_smoltcp
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/lucaszanella/async_smoltcp
[INFO] tweaked toml for git repo https://github.com/lucaszanella/async_smoltcp written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/lucaszanella/async_smoltcp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/lucaszanella/simple_socket`
[INFO] [stderr]     Updating git repository `https://github.com/lucaszanella/simple_vpn`
[INFO] [stderr]     Updating git repository `https://github.com/smoltcp-rs/smoltcp`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d1478226d31546d3f7c5362121ab29163cea4333dd50526a893bddf9bb70795
[INFO] running `Command { std: "docker" "start" "-a" "9d1478226d31546d3f7c5362121ab29163cea4333dd50526a893bddf9bb70795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d1478226d31546d3f7c5362121ab29163cea4333dd50526a893bddf9bb70795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1478226d31546d3f7c5362121ab29163cea4333dd50526a893bddf9bb70795", kill_on_drop: false }`
[INFO] [stdout] 9d1478226d31546d3f7c5362121ab29163cea4333dd50526a893bddf9bb70795
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa3ab7b352dc2e2562f5ef7ff2d3b55841810919d0c3d4e8c47ebc36b2e85d44
[INFO] running `Command { std: "docker" "start" "-a" "aa3ab7b352dc2e2562f5ef7ff2d3b55841810919d0c3d4e8c47ebc36b2e85d44", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling managed v0.8.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling smoltcp v0.8.0 (https://github.com/smoltcp-rs/smoltcp#027f255f)
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling simple_socket v0.1.0 (https://github.com/lucaszanella/simple_socket#0de9c043)
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling async_smoltcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.15s
[INFO] running `Command { std: "docker" "inspect" "aa3ab7b352dc2e2562f5ef7ff2d3b55841810919d0c3d4e8c47ebc36b2e85d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3ab7b352dc2e2562f5ef7ff2d3b55841810919d0c3d4e8c47ebc36b2e85d44", kill_on_drop: false }`
[INFO] [stdout] aa3ab7b352dc2e2562f5ef7ff2d3b55841810919d0c3d4e8c47ebc36b2e85d44
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45b3a974fb3a7c7ac72fee35ed1c7b45fb8484852a460809e9a7eb4f18513d6d
[INFO] running `Command { std: "docker" "start" "-a" "45b3a974fb3a7c7ac72fee35ed1c7b45fb8484852a460809e9a7eb4f18513d6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling hyper v0.14.9
[INFO] [stderr]    Compiling async_smoltcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> examples/utils.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]   --> examples/utils.rs:22:31
[INFO] [stdout]    |
[INFO] [stdout] 22 | use smoltcp::time::{Duration, Instant};
[INFO] [stdout]    |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> examples/async_tun_utils.rs:21:30
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
[INFO] [stdout]    |                              ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]   --> examples/async_tun_utils.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn call(&mut self, req: hyper::Uri) -> Self::Future {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.97s
[INFO] running `Command { std: "docker" "inspect" "45b3a974fb3a7c7ac72fee35ed1c7b45fb8484852a460809e9a7eb4f18513d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45b3a974fb3a7c7ac72fee35ed1c7b45fb8484852a460809e9a7eb4f18513d6d", kill_on_drop: false }`
[INFO] [stdout] 45b3a974fb3a7c7ac72fee35ed1c7b45fb8484852a460809e9a7eb4f18513d6d
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43aad5720d7618721de3347ee6dda12088fbd84b349dcd67e7974069cab82bd3
[INFO] running `Command { std: "docker" "start" "-a" "43aad5720d7618721de3347ee6dda12088fbd84b349dcd67e7974069cab82bd3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `cx`
[INFO] [stderr]   --> examples/async_tun_utils.rs:21:30
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
[INFO] [stderr]    |                              ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> examples/async_tun_utils.rs:25:24
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn call(&mut self, req: hyper::Uri) -> Self::Future {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> examples/utils.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{self, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Instant`
[INFO] [stderr]   --> examples/utils.rs:22:31
[INFO] [stderr]    |
[INFO] [stderr] 22 | use smoltcp::time::{Duration, Instant};
[INFO] [stderr]    |                               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `async_smoltcp` (example "async_tun_utils") generated 2 warnings
[INFO] [stderr] warning: `async_smoltcp` (example "utils") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_smoltcp-a5215148ec1b655f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_smoltcp
[INFO] [stderr] error[E0659]: `async_smoltcp` is ambiguous (name vs any other name during import resolution)
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub use async_smoltcp::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `async_smoltcp` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::async_smoltcp` to refer to this crate unambiguously
[INFO] [stderr] note: `async_smoltcp` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod async_smoltcp;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   = help: use `crate::async_smoltcp` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "43aad5720d7618721de3347ee6dda12088fbd84b349dcd67e7974069cab82bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43aad5720d7618721de3347ee6dda12088fbd84b349dcd67e7974069cab82bd3", kill_on_drop: false }`
[INFO] [stdout] 43aad5720d7618721de3347ee6dda12088fbd84b349dcd67e7974069cab82bd3
