[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] bc1313427ebf00825046be2b8944d02c5535e77f
[INFO] testing lucaszanella/async_smoltcp against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fasync_smoltcp" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucaszanella/async_smoltcp on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-10/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/lattice0/simple_socket`
[INFO] [stderr]     Updating git repository `https://github.com/lattice0/simple_vpn`
[INFO] [stderr]     Updating git repository `https://github.com/smoltcp-rs/smoltcp`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded http-body v0.4.2
[INFO] [stderr]   Downloaded managed v0.8.0
[INFO] [stderr]   Downloaded hyper v0.14.9
[INFO] [stderr]   Downloaded etherparse v0.9.0
[INFO] [stderr]   Downloaded tokio v1.6.0
[INFO] [stderr]   Downloaded tokio-macros v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac775800ca7ea417bf68e030fb7106f4cd42c63eaf8e67e75c80c5ccd48dab9e
[INFO] running `Command { std: "docker" "start" "-a" "ac775800ca7ea417bf68e030fb7106f4cd42c63eaf8e67e75c80c5ccd48dab9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac775800ca7ea417bf68e030fb7106f4cd42c63eaf8e67e75c80c5ccd48dab9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac775800ca7ea417bf68e030fb7106f4cd42c63eaf8e67e75c80c5ccd48dab9e", kill_on_drop: false }`
[INFO] [stdout] ac775800ca7ea417bf68e030fb7106f4cd42c63eaf8e67e75c80c5ccd48dab9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f23cd5e955f86609a4ecc8f35877f5f4d53a25825f8dc28adbd094e6b570747
[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" "8f23cd5e955f86609a4ecc8f35877f5f4d53a25825f8dc28adbd094e6b570747", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling managed v0.8.0
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling simple_socket v0.1.0 (https://github.com/lattice0/simple_socket#14a846f3)
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling smoltcp v0.8.0 (https://github.com/smoltcp-rs/smoltcp?rev=cb1828cbe6d19b10cb50d3e4323fa8c5ca25e5e4#cb1828cb)
[INFO] [stderr]    Compiling rand v0.8.4
[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 38.18s
[INFO] running `Command { std: "docker" "inspect" "8f23cd5e955f86609a4ecc8f35877f5f4d53a25825f8dc28adbd094e6b570747", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f23cd5e955f86609a4ecc8f35877f5f4d53a25825f8dc28adbd094e6b570747", kill_on_drop: false }`
[INFO] [stdout] 8f23cd5e955f86609a4ecc8f35877f5f4d53a25825f8dc28adbd094e6b570747
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 36714c8d5efccd18f7a6e11e60862116aba7cff41ba16136fde82c798502e6ea
[INFO] running `Command { std: "docker" "start" "-a" "36714c8d5efccd18f7a6e11e60862116aba7cff41ba16136fde82c798502e6ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling smoltcp v0.8.0 (https://github.com/smoltcp-rs/smoltcp?rev=cb1828cbe6d19b10cb50d3e4323fa8c5ca25e5e4#cb1828cb)
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling simple_socket v0.1.0 (https://github.com/lattice0/simple_socket#14a846f3)
[INFO] [stderr]    Compiling async_smoltcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling hyper v0.14.9
[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 51.23s
[INFO] running `Command { std: "docker" "inspect" "36714c8d5efccd18f7a6e11e60862116aba7cff41ba16136fde82c798502e6ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36714c8d5efccd18f7a6e11e60862116aba7cff41ba16136fde82c798502e6ea", kill_on_drop: false }`
[INFO] [stdout] 36714c8d5efccd18f7a6e11e60862116aba7cff41ba16136fde82c798502e6ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 296ae526b3d956bfe03047345c27d4c68faf9cfe26927e529147546b71b5ce7e
[INFO] running `Command { std: "docker" "start" "-a" "296ae526b3d956bfe03047345c27d4c68faf9cfe26927e529147546b71b5ce7e", kill_on_drop: false }`
[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: 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 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_smoltcp-134fa647ed99b16f)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_smoltcp
[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] 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" "296ae526b3d956bfe03047345c27d4c68faf9cfe26927e529147546b71b5ce7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296ae526b3d956bfe03047345c27d4c68faf9cfe26927e529147546b71b5ce7e", kill_on_drop: false }`
[INFO] [stdout] 296ae526b3d956bfe03047345c27d4c68faf9cfe26927e529147546b71b5ce7e