[INFO] fetching crate route 0.2.0...
[INFO] checking route-0.2.0 against beta for pr-78714
[INFO] extracting crate route 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate route 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate route 0.2.0
[INFO] finished tweaking crates.io crate route 0.2.0
[INFO] tweaked toml for crates.io crate route 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc6644dbc0c21c063dace76f4a533e583ccc7ecebc6b5b545b168d13ecdc14a1
[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" "bc6644dbc0c21c063dace76f4a533e583ccc7ecebc6b5b545b168d13ecdc14a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc6644dbc0c21c063dace76f4a533e583ccc7ecebc6b5b545b168d13ecdc14a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6644dbc0c21c063dace76f4a533e583ccc7ecebc6b5b545b168d13ecdc14a1", kill_on_drop: false }`
[INFO] [stdout] bc6644dbc0c21c063dace76f4a533e583ccc7ecebc6b5b545b168d13ecdc14a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 23434c044fd9cc5c1715a4cd2d638e70a2605ed8c9ee226423fe5d5ac501daba
[INFO] running `Command { std: "docker" "start" "-a" "23434c044fd9cc5c1715a4cd2d638e70a2605ed8c9ee226423fe5d5ac501daba", kill_on_drop: false }`
[INFO] [stderr]     Checking route v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `ok` is never read
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut ok = false;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p` is never read
[INFO] [stdout]   --> src/lib.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         $p = $end;
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |             seg!(s, p, end, [hello]);
[INFO] [stdout]    |             ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn home(req: &Request) -> Response {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:206:18
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn blog_post(req: &Request, id: u32) -> Response {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:210:16
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn account(req: &Request, subpath: &str) -> Response {
[INFO] [stdout]     |                ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut p = 0;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:61:17
[INFO] [stdout]     |
[INFO] [stdout] 61  |               let mut p = 0;
[INFO] [stdout]     |                   ----^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 215 | /         route!(req.path, {
[INFO] [stdout] 216 | |             (/)                 => home(req);
[INFO] [stdout] 217 | |             (/"blog"/[id: u32]) => blog_post(req, id);
[INFO] [stdout] 218 | |             (/"me"[/rest..])    => account(req, rest);
[INFO] [stdout] 219 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "23434c044fd9cc5c1715a4cd2d638e70a2605ed8c9ee226423fe5d5ac501daba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23434c044fd9cc5c1715a4cd2d638e70a2605ed8c9ee226423fe5d5ac501daba", kill_on_drop: false }`
[INFO] [stdout] 23434c044fd9cc5c1715a4cd2d638e70a2605ed8c9ee226423fe5d5ac501daba