[INFO] cloning repository https://github.com/waltcow/LinkPreview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/waltcow/LinkPreview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaltcow%2FLinkPreview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaltcow%2FLinkPreview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 823a58b0067e62fc12530c43c0b6820102f9f4c5
[INFO] testing waltcow/LinkPreview against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaltcow%2FLinkPreview" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/waltcow/LinkPreview on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/waltcow/LinkPreview
[INFO] finished tweaking git repo https://github.com/waltcow/LinkPreview
[INFO] tweaked toml for git repo https://github.com/waltcow/LinkPreview written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/waltcow/LinkPreview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea8824fd599ba4715c5548947f7b9a3e1a6e52f62e46db50df2c6d021fe5b6d3
[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" "ea8824fd599ba4715c5548947f7b9a3e1a6e52f62e46db50df2c6d021fe5b6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea8824fd599ba4715c5548947f7b9a3e1a6e52f62e46db50df2c6d021fe5b6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea8824fd599ba4715c5548947f7b9a3e1a6e52f62e46db50df2c6d021fe5b6d3", kill_on_drop: false }`
[INFO] [stdout] ea8824fd599ba4715c5548947f7b9a3e1a6e52f62e46db50df2c6d021fe5b6d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0fdbe0645b22e37e6472fa6c077c4542f941d44b4322e99d452c1fd8c94a953
[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" "a0fdbe0645b22e37e6472fa6c077c4542f941d44b4322e99d452c1fd8c94a953", kill_on_drop: false }`
[INFO] [stderr]    Compiling LinkPreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `LinkPreview` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `link_preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "a0fdbe0645b22e37e6472fa6c077c4542f941d44b4322e99d452c1fd8c94a953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0fdbe0645b22e37e6472fa6c077c4542f941d44b4322e99d452c1fd8c94a953", kill_on_drop: false }`
[INFO] [stdout] a0fdbe0645b22e37e6472fa6c077c4542f941d44b4322e99d452c1fd8c94a953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0801966b308b58d2b26de4801a7e159e9aefb32c9ad83ac7895e8b2f2dfeef38
[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" "0801966b308b58d2b26de4801a7e159e9aefb32c9ad83ac7895e8b2f2dfeef38", kill_on_drop: false }`
[INFO] [stderr]    Compiling LinkPreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `LinkPreview` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `link_preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "0801966b308b58d2b26de4801a7e159e9aefb32c9ad83ac7895e8b2f2dfeef38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0801966b308b58d2b26de4801a7e159e9aefb32c9ad83ac7895e8b2f2dfeef38", kill_on_drop: false }`
[INFO] [stdout] 0801966b308b58d2b26de4801a7e159e9aefb32c9ad83ac7895e8b2f2dfeef38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbd1234e3a6be13914e0074ff1e8c2f7299cc99e35435c7df4d5909cdb57a1b7
[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" "fbd1234e3a6be13914e0074ff1e8c2f7299cc99e35435c7df4d5909cdb57a1b7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: crate `LinkPreview` should have a snake case name
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = help: convert the identifier to snake case: `link_preview`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: `LinkPreview` (bin "LinkPreview" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/LinkPreview-cb05bc1eb6948fa8)
[INFO] running `Command { std: "docker" "inspect" "fbd1234e3a6be13914e0074ff1e8c2f7299cc99e35435c7df4d5909cdb57a1b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd1234e3a6be13914e0074ff1e8c2f7299cc99e35435c7df4d5909cdb57a1b7", kill_on_drop: false }`
[INFO] [stdout] fbd1234e3a6be13914e0074ff1e8c2f7299cc99e35435c7df4d5909cdb57a1b7