[INFO] fetching crate cdb 0.6.0...
[INFO] checking cdb-0.6.0 against master#dc375db7d8df0aa450e622c529147c95eee756f5 for pr-156749
[INFO] extracting crate cdb 0.6.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cdb 0.6.0
[INFO] finished tweaking crates.io crate cdb 0.6.0
[INFO] tweaked toml for crates.io crate cdb 0.6.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cdb 0.6.0 on toolchain dc375db7d8df0aa450e622c529147c95eee756f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.8.2)
[INFO] [stderr]       Adding filebuffer v0.4.0 (available: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `cdb` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filebuffer v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042
[INFO] running `Command { std: "docker" "start" "daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042" "/opt/rustwide/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042" "/opt/rustwide/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `cdb` (manifest) generated 1 warning
[INFO] [stderr]     Checking filebuffer v0.4.0
[INFO] [stderr]     Checking cdb v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/reader.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             try!(self.read(&mut buf[..n], pos));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/reader.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         try!(self.cdb.read(&mut result[..], self.dpos));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         try!(w.seek(io::SeekFrom::Start(0)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         try!(w.write(&buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         try!(self.pos_plus(8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         try!(self.pos_plus(keylen));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         try!(self.pos_plus(datalen));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(self.file.write(&buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         try!(self.add_begin(key.len() as u32, data.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         try!(self.file.write(key));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         try!(self.file.write(data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         try!(self.file.flush());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         try!(self.file.seek(io::SeekFrom::Start(0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         try!(self.file.write(&header));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         try!(self.file.flush());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 try!(self.file.write(&buf));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:138:17
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 try!(self.pos_plus(8));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:199:20
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let file = try!(fs::File::create(&tmpname));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:200:19
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let cdb = try!(CDBMake::new(file));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         try!(self.cdb.take().unwrap().finish());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(fs::rename(&self.tmpname, &self.dstname));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/reader.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             try!(self.read(&mut buf[..n], pos));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/reader.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         try!(self.cdb.read(&mut result[..], self.dpos));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         try!(w.seek(io::SeekFrom::Start(0)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         try!(w.write(&buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         try!(self.pos_plus(8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         try!(self.pos_plus(keylen));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         try!(self.pos_plus(datalen));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(self.file.write(&buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         try!(self.add_begin(key.len() as u32, data.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         try!(self.file.write(key));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/writer.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         try!(self.file.write(data));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         try!(self.file.flush());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         try!(self.file.seek(io::SeekFrom::Start(0)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         try!(self.file.write(&header));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         try!(self.file.flush());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 try!(self.file.write(&buf));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:138:17
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 try!(self.pos_plus(8));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:199:20
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let file = try!(fs::File::create(&tmpname));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:200:19
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let cdb = try!(CDBMake::new(file));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         try!(self.cdb.take().unwrap().finish());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(fs::rename(&self.tmpname, &self.dstname));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn find(&self, key: &[u8]) -> CDBValueIter {
[INFO] [stdout]     |                 ^^^^^                 ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn find(&self, key: &[u8]) -> CDBValueIter<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter(&self) -> CDBKeyValueIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter(&self) -> CDBKeyValueIter<'_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn find(&self, key: &[u8]) -> CDBValueIter {
[INFO] [stdout]     |                 ^^^^^                 ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn find(&self, key: &[u8]) -> CDBValueIter<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/reader.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter(&self) -> CDBKeyValueIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter(&self) -> CDBKeyValueIter<'_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042", kill_on_drop: false }`
[INFO] [stdout] daddf841ea33ee7ac703509406597ed713713370a8605b57ab4e302e7589c042
