[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-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fasync_smoltcp" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucaszanella/async_smoltcp on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-13/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-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.2.0
[INFO] [stderr]   Downloaded etherparse v0.9.0
[INFO] [stderr]   Downloaded hyper v0.14.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15ff833652d833049a91267da7c679a0ebad093854435336d57a9a4c7d126d51
[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" "15ff833652d833049a91267da7c679a0ebad093854435336d57a9a4c7d126d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15ff833652d833049a91267da7c679a0ebad093854435336d57a9a4c7d126d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15ff833652d833049a91267da7c679a0ebad093854435336d57a9a4c7d126d51", kill_on_drop: false }`
[INFO] [stdout] 15ff833652d833049a91267da7c679a0ebad093854435336d57a9a4c7d126d51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a30d648af3f2abdf52fa4adbbc8c897b3e90932edfea980246ea0e0fe376b1e5
[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" "a30d648af3f2abdf52fa4adbbc8c897b3e90932edfea980246ea0e0fe376b1e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling managed v0.8.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling smoltcp v0.8.0 (https://github.com/smoltcp-rs/smoltcp#027f255f)
[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 36.36s
[INFO] running `Command { std: "docker" "inspect" "a30d648af3f2abdf52fa4adbbc8c897b3e90932edfea980246ea0e0fe376b1e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a30d648af3f2abdf52fa4adbbc8c897b3e90932edfea980246ea0e0fe376b1e5", kill_on_drop: false }`
[INFO] [stdout] a30d648af3f2abdf52fa4adbbc8c897b3e90932edfea980246ea0e0fe376b1e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a7176968a31024fa05e763ad4962127a516196f7153333f3361a8e6d31a8bf0
[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" "9a7176968a31024fa05e763ad4962127a516196f7153333f3361a8e6d31a8bf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling hyper v0.14.9
[INFO] [stderr]    Compiling async_smoltcp v0.1.0 (/opt/rustwide/workdir)
[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: 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: 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 19.10s
[INFO] running `Command { std: "docker" "inspect" "9a7176968a31024fa05e763ad4962127a516196f7153333f3361a8e6d31a8bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7176968a31024fa05e763ad4962127a516196f7153333f3361a8e6d31a8bf0", kill_on_drop: false }`
[INFO] [stdout] 9a7176968a31024fa05e763ad4962127a516196f7153333f3361a8e6d31a8bf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 14af189e623f58dc82303f6531134fcf6e77fc1c11023e526587ae9836eca5a2
[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" "14af189e623f58dc82303f6531134fcf6e77fc1c11023e526587ae9836eca5a2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> examples/utils.rs:6:21
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 6 | use std::io::{self, Write};
[INFO] [stdout] 
[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: 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: `async_smoltcp` (example "utils") generated 2 warnings
[INFO] [stderr] warning: `async_smoltcp` (example "async_tun_utils") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_smoltcp-e011ad6a130aa990)
[INFO] [stderr]    Doc-tests async_smoltcp
[INFO] [stderr] error[E0659]: `async_smoltcp` is ambiguous
[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: ambiguous because of multiple potential import sources
[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" "14af189e623f58dc82303f6531134fcf6e77fc1c11023e526587ae9836eca5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14af189e623f58dc82303f6531134fcf6e77fc1c11023e526587ae9836eca5a2", kill_on_drop: false }`
[INFO] [stdout] 14af189e623f58dc82303f6531134fcf6e77fc1c11023e526587ae9836eca5a2