[INFO] cloning repository https://github.com/Gentoli/gce-meta-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gentoli/gce-meta-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGentoli%2Fgce-meta-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGentoli%2Fgce-meta-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69b659cc8c4a962244b622a93ee5471a9ef58058
[INFO] checking Gentoli/gce-meta-server against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGentoli%2Fgce-meta-server" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Gentoli/gce-meta-server
[INFO] finished tweaking git repo https://github.com/Gentoli/gce-meta-server
[INFO] tweaked toml for git repo https://github.com/Gentoli/gce-meta-server written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Gentoli/gce-meta-server on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Gentoli/gce-meta-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba8ee9400b171154a8b88c713cde4cec982b8ea29dbba9fda37b27655ea690c2
[INFO] running `Command { std: "docker" "start" "-a" "ba8ee9400b171154a8b88c713cde4cec982b8ea29dbba9fda37b27655ea690c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba8ee9400b171154a8b88c713cde4cec982b8ea29dbba9fda37b27655ea690c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8ee9400b171154a8b88c713cde4cec982b8ea29dbba9fda37b27655ea690c2", kill_on_drop: false }`
[INFO] [stdout] ba8ee9400b171154a8b88c713cde4cec982b8ea29dbba9fda37b27655ea690c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a44864b6c27f0e11360e003e770f77ab831ed3f84341891220b100ad6f639924
[INFO] running `Command { std: "docker" "start" "-a" "a44864b6c27f0e11360e003e770f77ab831ed3f84341891220b100ad6f639924", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking gzip-header v0.3.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking deflate v0.9.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking multipart v0.18.0
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking time v0.3.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tiny_http v0.8.2
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking serde-transcode v1.1.1
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking rouille v3.3.1
[INFO] [stderr]     Checking gce-meta-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// Server listen address
[INFO] [stdout] 23 | |     #[structopt(short, long, default_value = "127.0.0.1:80")]
[INFO] [stdout] 24 | |     listen_address: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// json/yaml pointer (https://tools.ietf.org/html/rfc6901) to the metadata array
[INFO] [stdout] 27 | |     #[structopt(short("p"), long, default_value = "")]
[INFO] [stdout] 28 | |     metadata_path: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 | /             router!(r,
[INFO] [stdout] 63 | |                 (GET) (/computeMetadata/v1/instance/attributes/{attribute: String}) => {
[INFO] [stdout] 64 | |                     if let Some(attr) = attrs.get(&attribute) {
[INFO] [stdout] 65 | |                         rouille::Response::text(attr)
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |                 _ => rouille::Response::empty_404(),
[INFO] [stdout] 71 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::router` which comes from the expansion of the macro `router` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gce-meta-server` (bin "gce-meta-server" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// Server listen address
[INFO] [stdout] 23 | |     #[structopt(short, long, default_value = "127.0.0.1:80")]
[INFO] [stdout] 24 | |     listen_address: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// json/yaml pointer (https://tools.ietf.org/html/rfc6901) to the metadata array
[INFO] [stdout] 27 | |     #[structopt(short("p"), long, default_value = "")]
[INFO] [stdout] 28 | |     metadata_path: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 | /             router!(r,
[INFO] [stdout] 63 | |                 (GET) (/computeMetadata/v1/instance/attributes/{attribute: String}) => {
[INFO] [stdout] 64 | |                     if let Some(attr) = attrs.get(&attribute) {
[INFO] [stdout] 65 | |                         rouille::Response::text(attr)
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |                 _ => rouille::Response::empty_404(),
[INFO] [stdout] 71 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::router` which comes from the expansion of the macro `router` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gce-meta-server` (bin "gce-meta-server") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "a44864b6c27f0e11360e003e770f77ab831ed3f84341891220b100ad6f639924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a44864b6c27f0e11360e003e770f77ab831ed3f84341891220b100ad6f639924", kill_on_drop: false }`
[INFO] [stdout] a44864b6c27f0e11360e003e770f77ab831ed3f84341891220b100ad6f639924