[INFO] cloning repository https://github.com/acmumn/snackcoin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acmumn/snackcoin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fsnackcoin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fsnackcoin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c9db884abf593e68e1eb131f69ede4632d9a728
[INFO] checking acmumn/snackcoin against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fsnackcoin" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/acmumn/snackcoin on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/acmumn/snackcoin
[INFO] finished tweaking git repo https://github.com/acmumn/snackcoin
[INFO] tweaked toml for git repo https://github.com/acmumn/snackcoin written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/acmumn/snackcoin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/cardoe/stderrlog-rs.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-stable v0.2.0
[INFO] [stderr]   Downloaded futures-executor v0.2.0
[INFO] [stderr]   Downloaded futures-io v0.2.0
[INFO] [stderr]   Downloaded futures-sink v0.2.0
[INFO] [stderr]   Downloaded futures v0.2.0
[INFO] [stderr]   Downloaded structopt-derive v0.2.7
[INFO] [stderr]   Downloaded futures-core v0.2.0
[INFO] [stderr]   Downloaded structopt v0.2.7
[INFO] [stderr]   Downloaded futures-channel v0.2.0
[INFO] [stderr]   Downloaded futures-util v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c68d44dc95c09fd027e5c1cb4cc8ad52a662583076c53f43f000186bd697fe1
[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" "2c68d44dc95c09fd027e5c1cb4cc8ad52a662583076c53f43f000186bd697fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c68d44dc95c09fd027e5c1cb4cc8ad52a662583076c53f43f000186bd697fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c68d44dc95c09fd027e5c1cb4cc8ad52a662583076c53f43f000186bd697fe1", kill_on_drop: false }`
[INFO] [stdout] 2c68d44dc95c09fd027e5c1cb4cc8ad52a662583076c53f43f000186bd697fe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f5958aad073b270c9a0e5c9d77b4ce0b134038c5399c448d8ef9c378ca1b3e
[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" "17f5958aad073b270c9a0e5c9d77b4ce0b134038c5399c448d8ef9c378ca1b3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking sequence_trie v0.3.5
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking xattr v0.2.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking filetime v0.2.0
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking futures-core v0.2.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking tar v0.4.15
[INFO] [stderr]     Checking futures-channel v0.2.0
[INFO] [stderr]     Checking futures-io v0.2.0
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking futures-sink v0.2.0
[INFO] [stderr]     Checking futures-util v0.2.0
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking num-integer v0.1.36
[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`
[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" "17f5958aad073b270c9a0e5c9d77b4ce0b134038c5399c448d8ef9c378ca1b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f5958aad073b270c9a0e5c9d77b4ce0b134038c5399c448d8ef9c378ca1b3e", kill_on_drop: false }`
[INFO] [stdout] 17f5958aad073b270c9a0e5c9d77b4ce0b134038c5399c448d8ef9c378ca1b3e