[INFO] cloning repository https://github.com/CPSSD/heracles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CPSSD/heracles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCPSSD%2Fheracles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCPSSD%2Fheracles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73d83c777cdc8c25abae434611e30299dd14e9ab
[INFO] testing CPSSD/heracles against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCPSSD%2Fheracles" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CPSSD/heracles on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CPSSD/heracles
[INFO] finished tweaking git repo https://github.com/CPSSD/heracles
[INFO] tweaked toml for git repo https://github.com/CPSSD/heracles written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/CPSSD/heracles already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded amq-protocol-types v0.20.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4afe1275c98898484d5708dab4f40b51bce6886593bbc08c4498f459e9060c0c
[INFO] running `Command { std: "docker" "start" "-a" "4afe1275c98898484d5708dab4f40b51bce6886593bbc08c4498f459e9060c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4afe1275c98898484d5708dab4f40b51bce6886593bbc08c4498f459e9060c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4afe1275c98898484d5708dab4f40b51bce6886593bbc08c4498f459e9060c0c", kill_on_drop: false }`
[INFO] [stdout] 4afe1275c98898484d5708dab4f40b51bce6886593bbc08c4498f459e9060c0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aef246daab683ccb0e81554facc8f2335d89826a3f9fcc4e6a5cc3adbd2a56c
[INFO] running `Command { std: "docker" "start" "-a" "7aef246daab683ccb0e81554facc8f2335d89826a3f9fcc4e6a5cc3adbd2a56c", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio-executor v0.1.1
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[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.3.22
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[INFO] [stderr]    Compiling failure_derive v0.1.1
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[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.1
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
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[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]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[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" "7aef246daab683ccb0e81554facc8f2335d89826a3f9fcc4e6a5cc3adbd2a56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aef246daab683ccb0e81554facc8f2335d89826a3f9fcc4e6a5cc3adbd2a56c", kill_on_drop: false }`
[INFO] [stdout] 7aef246daab683ccb0e81554facc8f2335d89826a3f9fcc4e6a5cc3adbd2a56c