[INFO] updating cached repository https://github.com/oblique/docker-guard
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34dc8eb36b44c7faec1e870998f07ba1f3ae1d62
[INFO] testing oblique/docker-guard against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foblique%2Fdocker-guard" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oblique/docker-guard on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/oblique/docker-guard
[INFO] finished tweaking git repo https://github.com/oblique/docker-guard
[INFO] tweaked toml for git repo https://github.com/oblique/docker-guard written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/oblique/docker-guard already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3eb3f7658a7c14d2fa820823ca1b44baab71bc142e910fa2493f8b97a5c82162
[INFO] running `"docker" "start" "-a" "3eb3f7658a7c14d2fa820823ca1b44baab71bc142e910fa2493f8b97a5c82162"`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling matches v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling rust-ini v0.12.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling epoll v4.0.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling serde-hjson v0.8.1
[INFO] [stderr]    Compiling config v0.9.0
[INFO] [stderr]    Compiling docker-guard v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:39
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn as_read_mut(&mut self) -> &mut Read;
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn as_write_mut(&mut self) -> &mut Write;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:58:39
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn as_read_mut(&mut self) -> &mut Read {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:62:40
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn as_write_mut(&mut self) -> &mut Write {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:103:28
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn read_until(reader: &mut Read, buf: &mut Vec<u8>, until: &[u8]) -> io::Result<()> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:138:18
[INFO] [stderr]     |
[INFO] [stderr] 138 |     reader: &mut Read,
[INFO] [stderr]     |                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:146:35
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn read_http_content(reader: &mut Read, http: &Http) -> Result<Vec<u8>> {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:200:36
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn write_http_headers(writer: &mut Write, http: &Http, content_len: Option<usize>) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:239:36
[INFO] [stderr]     |
[INFO] [stderr] 239 | fn write_http_content(writer: &mut Write, content: &[u8]) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:244:44
[INFO] [stderr]     |
[INFO] [stderr] 244 | fn write_http_content_chunked(writer: &mut Write, content: &[u8]) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:254:28
[INFO] [stderr]     |
[INFO] [stderr] 254 | fn forward_data(from: &mut Read, to: &mut Write) -> io::Result<usize> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:254:43
[INFO] [stderr]     |
[INFO] [stderr] 254 | fn forward_data(from: &mut Read, to: &mut Write) -> io::Result<usize> {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:262:16
[INFO] [stderr]     |
[INFO] [stderr] 262 |     from: &mut Read,
[INFO] [stderr]     |                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:263:14
[INFO] [stderr]     |
[INFO] [stderr] 263 |     to: &mut Write,
[INFO] [stderr]     |              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:34
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn handle_upgraded(stream1: &mut Stream, stream2: &mut Stream) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:56
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn handle_upgraded(stream1: &mut Stream, stream2: &mut Stream) -> Result<()> {
[INFO] [stderr]     |                                                        ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:336:47
[INFO] [stderr]     |
[INFO] [stderr] 336 | fn connect_to_docker(url: &Url) -> Result<Box<Stream>> {
[INFO] [stderr]     |                                               ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `"docker" "inspect" "3eb3f7658a7c14d2fa820823ca1b44baab71bc142e910fa2493f8b97a5c82162"`
[INFO] running `"docker" "rm" "-f" "3eb3f7658a7c14d2fa820823ca1b44baab71bc142e910fa2493f8b97a5c82162"`
[INFO] [stdout] 3eb3f7658a7c14d2fa820823ca1b44baab71bc142e910fa2493f8b97a5c82162
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stdout] 86568093ebe370e2edb2fa63ad51347cda62614926ef7536e54c7968283dbdbf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "86568093ebe370e2edb2fa63ad51347cda62614926ef7536e54c7968283dbdbf"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling docker-guard v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:39
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn as_read_mut(&mut self) -> &mut Read;
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn as_write_mut(&mut self) -> &mut Write;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:58:39
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn as_read_mut(&mut self) -> &mut Read {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:62:40
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn as_write_mut(&mut self) -> &mut Write {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:103:28
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn read_until(reader: &mut Read, buf: &mut Vec<u8>, until: &[u8]) -> io::Result<()> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:138:18
[INFO] [stderr]     |
[INFO] [stderr] 138 |     reader: &mut Read,
[INFO] [stderr]     |                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:146:35
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn read_http_content(reader: &mut Read, http: &Http) -> Result<Vec<u8>> {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:200:36
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn write_http_headers(writer: &mut Write, http: &Http, content_len: Option<usize>) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:239:36
[INFO] [stderr]     |
[INFO] [stderr] 239 | fn write_http_content(writer: &mut Write, content: &[u8]) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:244:44
[INFO] [stderr]     |
[INFO] [stderr] 244 | fn write_http_content_chunked(writer: &mut Write, content: &[u8]) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:254:28
[INFO] [stderr]     |
[INFO] [stderr] 254 | fn forward_data(from: &mut Read, to: &mut Write) -> io::Result<usize> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:254:43
[INFO] [stderr]     |
[INFO] [stderr] 254 | fn forward_data(from: &mut Read, to: &mut Write) -> io::Result<usize> {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:262:16
[INFO] [stderr]     |
[INFO] [stderr] 262 |     from: &mut Read,
[INFO] [stderr]     |                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:263:14
[INFO] [stderr]     |
[INFO] [stderr] 263 |     to: &mut Write,
[INFO] [stderr]     |              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:34
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn handle_upgraded(stream1: &mut Stream, stream2: &mut Stream) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:56
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn handle_upgraded(stream1: &mut Stream, stream2: &mut Stream) -> Result<()> {
[INFO] [stderr]     |                                                        ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:336:47
[INFO] [stderr]     |
[INFO] [stderr] 336 | fn connect_to_docker(url: &Url) -> Result<Box<Stream>> {
[INFO] [stderr]     |                                               ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `"docker" "inspect" "86568093ebe370e2edb2fa63ad51347cda62614926ef7536e54c7968283dbdbf"`
[INFO] running `"docker" "rm" "-f" "86568093ebe370e2edb2fa63ad51347cda62614926ef7536e54c7968283dbdbf"`
[INFO] [stdout] 86568093ebe370e2edb2fa63ad51347cda62614926ef7536e54c7968283dbdbf
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 378598c0959fd56c486be8a3663a2fa14d49db1c3cd2691e599d037d7557f1de
[INFO] running `"docker" "start" "-a" "378598c0959fd56c486be8a3663a2fa14d49db1c3cd2691e599d037d7557f1de"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:39
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn as_read_mut(&mut self) -> &mut Read;
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn as_write_mut(&mut self) -> &mut Write;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:58:39
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn as_read_mut(&mut self) -> &mut Read {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:62:40
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn as_write_mut(&mut self) -> &mut Write {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:103:28
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn read_until(reader: &mut Read, buf: &mut Vec<u8>, until: &[u8]) -> io::Result<()> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:138:18
[INFO] [stderr]     |
[INFO] [stderr] 138 |     reader: &mut Read,
[INFO] [stderr]     |                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:146:35
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn read_http_content(reader: &mut Read, http: &Http) -> Result<Vec<u8>> {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:200:36
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn write_http_headers(writer: &mut Write, http: &Http, content_len: Option<usize>) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:239:36
[INFO] [stderr]     |
[INFO] [stderr] 239 | fn write_http_content(writer: &mut Write, content: &[u8]) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:244:44
[INFO] [stderr]     |
[INFO] [stderr] 244 | fn write_http_content_chunked(writer: &mut Write, content: &[u8]) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:254:28
[INFO] [stderr]     |
[INFO] [stderr] 254 | fn forward_data(from: &mut Read, to: &mut Write) -> io::Result<usize> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:254:43
[INFO] [stderr]     |
[INFO] [stderr] 254 | fn forward_data(from: &mut Read, to: &mut Write) -> io::Result<usize> {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:262:16
[INFO] [stderr]     |
[INFO] [stderr] 262 |     from: &mut Read,
[INFO] [stderr]     |                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:263:14
[INFO] [stderr]     |
[INFO] [stderr] 263 |     to: &mut Write,
[INFO] [stderr]     |              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:34
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn handle_upgraded(stream1: &mut Stream, stream2: &mut Stream) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:56
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn handle_upgraded(stream1: &mut Stream, stream2: &mut Stream) -> Result<()> {
[INFO] [stderr]     |                                                        ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:336:47
[INFO] [stderr]     |
[INFO] [stderr] 336 | fn connect_to_docker(url: &Url) -> Result<Box<Stream>> {
[INFO] [stderr]     |                                               ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | /     error_chain! {
[INFO] [stderr] 39 | |         foreign_links {
[INFO] [stderr] 40 | |             Io(::std::io::Error) #[cfg(unix)];
[INFO] [stderr] 41 | |             HttpParse(::httparse::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/docker_guard-a312d6664f4ec8b5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "378598c0959fd56c486be8a3663a2fa14d49db1c3cd2691e599d037d7557f1de"`
[INFO] running `"docker" "rm" "-f" "378598c0959fd56c486be8a3663a2fa14d49db1c3cd2691e599d037d7557f1de"`
[INFO] [stdout] 378598c0959fd56c486be8a3663a2fa14d49db1c3cd2691e599d037d7557f1de