[INFO] cloning repository https://github.com/glasses-n-contacts/rust-web-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/glasses-n-contacts/rust-web-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglasses-n-contacts%2Frust-web-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglasses-n-contacts%2Frust-web-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff96160077190b3884a79fca7593b6b97a46a80f
[INFO] testing glasses-n-contacts/rust-web-calculator against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglasses-n-contacts%2Frust-web-calculator" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/glasses-n-contacts/rust-web-calculator on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/glasses-n-contacts/rust-web-calculator
[INFO] finished tweaking git repo https://github.com/glasses-n-contacts/rust-web-calculator
[INFO] tweaked toml for git repo https://github.com/glasses-n-contacts/rust-web-calculator written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/glasses-n-contacts/rust-web-calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded hyper v0.10.13
[INFO] [stderr]   Downloaded pest v0.4.1
[INFO] [stderr]   Downloaded rocket v0.3.12
[INFO] [stderr]   Downloaded handlebars v0.28.3
[INFO] [stderr]   Downloaded rocket_codegen v0.3.12
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded slug v0.1.3
[INFO] [stderr]   Downloaded rayon v0.7.1
[INFO] [stderr]   Downloaded serde_derive v1.0.66
[INFO] [stderr]   Downloaded state v0.4.1
[INFO] [stderr]   Downloaded isatty v0.1.8
[INFO] [stderr]   Downloaded typeable v0.1.2
[INFO] [stderr]   Downloaded pear v0.0.17
[INFO] [stderr]   Downloaded pest v0.3.3
[INFO] [stderr]   Downloaded mime v0.2.6
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded pear_codegen v0.0.17
[INFO] [stderr]   Downloaded yansi v0.4.0
[INFO] [stderr]   Downloaded chrono v0.4.2
[INFO] [stderr]   Downloaded ring v0.11.0
[INFO] [stderr]   Downloaded ordermap v0.2.13
[INFO] [stderr]   Downloaded cookie v0.9.2
[INFO] [stderr]   Downloaded serde_json v1.0.19
[INFO] [stderr]   Downloaded rocket_contrib v0.3.12
[INFO] [stderr]   Downloaded unidecode v0.3.0
[INFO] [stderr]   Downloaded num-integer v0.1.38
[INFO] [stderr]   Downloaded tera v0.10.10
[INFO] [stderr]   Downloaded smallvec v0.6.1
[INFO] [stderr]   Downloaded num-traits v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f835df5608b41956b4ee4eeca66934e280ac3a7ad93d3198d44fe14d3a93266
[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" "2f835df5608b41956b4ee4eeca66934e280ac3a7ad93d3198d44fe14d3a93266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f835df5608b41956b4ee4eeca66934e280ac3a7ad93d3198d44fe14d3a93266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f835df5608b41956b4ee4eeca66934e280ac3a7ad93d3198d44fe14d3a93266", kill_on_drop: false }`
[INFO] [stdout] 2f835df5608b41956b4ee4eeca66934e280ac3a7ad93d3198d44fe14d3a93266
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f35759cf6d251f15fca888fa54d2aa0d5a24426b0a6f26a22a5cac0b0604232
[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" "1f35759cf6d251f15fca888fa54d2aa0d5a24426b0a6f26a22a5cac0b0604232", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling pear v0.0.17
[INFO] [stderr]    Compiling smallvec v0.6.1
[INFO] [stderr]    Compiling pest v0.4.1
[INFO] [stderr]    Compiling isatty v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling pear_codegen v0.0.17
[INFO] [stderr]    Compiling rocket v0.3.12
[INFO] [stderr]    Compiling rocket_codegen v0.3.12
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling serde_json v1.0.19
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.66
[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-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 261 |     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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1f35759cf6d251f15fca888fa54d2aa0d5a24426b0a6f26a22a5cac0b0604232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f35759cf6d251f15fca888fa54d2aa0d5a24426b0a6f26a22a5cac0b0604232", kill_on_drop: false }`
[INFO] [stdout] 1f35759cf6d251f15fca888fa54d2aa0d5a24426b0a6f26a22a5cac0b0604232