[INFO] cloning repository https://github.com/5830ification/rust-simple-ml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/5830ification/rust-simple-ml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5830ification%2Frust-simple-ml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5830ification%2Frust-simple-ml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a05e04c91a7804be657965e4ca473e7597e7d5ff
[INFO] checking 5830ification/rust-simple-ml against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5830ification%2Frust-simple-ml" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/5830ification/rust-simple-ml on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/5830ification/rust-simple-ml
[INFO] finished tweaking git repo https://github.com/5830ification/rust-simple-ml
[INFO] tweaked toml for git repo https://github.com/5830ification/rust-simple-ml written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/5830ification/rust-simple-ml already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.16
[INFO] [stderr]   Downloaded serde_json v1.0.5
[INFO] [stderr]   Downloaded reqwest v0.8.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.20
[INFO] [stderr]   Downloaded openssl v0.9.20
[INFO] [stderr]   Downloaded num-complex v0.1.40
[INFO] [stderr]   Downloaded matrixmultiply v0.1.13
[INFO] [stderr]   Downloaded serde_derive v1.0.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f6ca55a74384ad577bd3d442c8f4a0aff9459af618acc05ee276ae871446cb3
[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" "9f6ca55a74384ad577bd3d442c8f4a0aff9459af618acc05ee276ae871446cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f6ca55a74384ad577bd3d442c8f4a0aff9459af618acc05ee276ae871446cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f6ca55a74384ad577bd3d442c8f4a0aff9459af618acc05ee276ae871446cb3", kill_on_drop: false }`
[INFO] [stdout] 9f6ca55a74384ad577bd3d442c8f4a0aff9459af618acc05ee276ae871446cb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf456f59e223f02209263789fb7538c89b0297194172382e7e24255b77517388
[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" "cf456f59e223f02209263789fb7538c89b0297194172382e7e24255b77517388", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling openssl v0.9.20
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking serde v1.0.16
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking futures-cpupool v0.1.7
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]    Compiling serde_derive v1.0.16
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking tokio-io v0.1.3
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking mime v0.3.5
[INFO] [stderr]    Compiling openssl-sys v0.9.20
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.5.1/src/form_urlencoded.rs:251:40
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 251 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stdout]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `url`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cf456f59e223f02209263789fb7538c89b0297194172382e7e24255b77517388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf456f59e223f02209263789fb7538c89b0297194172382e7e24255b77517388", kill_on_drop: false }`
[INFO] [stdout] cf456f59e223f02209263789fb7538c89b0297194172382e7e24255b77517388