[INFO] cloning repository https://github.com/artemshitov/stamp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/artemshitov/stamp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartemshitov%2Fstamp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartemshitov%2Fstamp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 503270ef572932ef9934bd9303fb494800ce449b
[INFO] checking artemshitov/stamp against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartemshitov%2Fstamp" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/artemshitov/stamp on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/artemshitov/stamp
[INFO] finished tweaking git repo https://github.com/artemshitov/stamp
[INFO] tweaked toml for git repo https://github.com/artemshitov/stamp written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/artemshitov/stamp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v1.5.1
[INFO] [stderr]   Downloaded nom v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1a3f555e7b50904c8a44318e2b6f5f9ff84d72e555ab50dbe0b230d8f9206b0
[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" "e1a3f555e7b50904c8a44318e2b6f5f9ff84d72e555ab50dbe0b230d8f9206b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1a3f555e7b50904c8a44318e2b6f5f9ff84d72e555ab50dbe0b230d8f9206b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a3f555e7b50904c8a44318e2b6f5f9ff84d72e555ab50dbe0b230d8f9206b0", kill_on_drop: false }`
[INFO] [stdout] e1a3f555e7b50904c8a44318e2b6f5f9ff84d72e555ab50dbe0b230d8f9206b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8db784e25934fff2c83f94118ffef311120c976d528bc70598fed6c851d1ae78
[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" "8db784e25934fff2c83f94118ffef311120c976d528bc70598fed6c851d1ae78", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking nom v3.0.0
[INFO] [stderr]     Checking quick-error v1.2.0
[INFO] [stderr]     Checking colored v1.5.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking stamp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/main.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 |             path = env::home_dir()
[INFO] [stdout]    |                    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/main.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 |             path = env::home_dir()
[INFO] [stdout]    |                    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug)]
[INFO] [stdout] 11 | |     pub enum Error {
[INFO] [stdout] 12 | |         IOError(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.01s
[INFO] running `Command { std: "docker" "inspect" "8db784e25934fff2c83f94118ffef311120c976d528bc70598fed6c851d1ae78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db784e25934fff2c83f94118ffef311120c976d528bc70598fed6c851d1ae78", kill_on_drop: false }`
[INFO] [stdout] 8db784e25934fff2c83f94118ffef311120c976d528bc70598fed6c851d1ae78