[INFO] crate dot 0.1.4 is already in cache
[INFO] checking dot-0.1.4 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate dot 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dot 0.1.4 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dot 0.1.4
[INFO] finished tweaking crates.io crate dot 0.1.4
[INFO] tweaked toml for crates.io crate dot 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6da68199587264d95e87a93f62206f4c4ab08431e993e781a35b55b34e9ace8e
[INFO] running `"docker" "start" "-a" "6da68199587264d95e87a93f62206f4c4ab08431e993e781a35b55b34e9ace8e"`
[INFO] [stderr]     Checking dot v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:937:13
[INFO] [stderr]     |
[INFO] [stderr] 937 |             try!(w.write_all(s.as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:946:5
[INFO] [stderr]     |
[INFO] [stderr] 946 |     try!(writeln(w, &[g.kind().keyword(), " ", g.graph_id().as_slice(), " {"]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:950:9
[INFO] [stderr]     |
[INFO] [stderr] 950 |         try!(indent(w));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:989:9
[INFO] [stderr]     |
[INFO] [stderr] 989 |         try!(writeln(w, &text));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1000:9
[INFO] [stderr]      |
[INFO] [stderr] 1000 |         try!(indent(w));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1051:9
[INFO] [stderr]      |
[INFO] [stderr] 1051 |         try!(writeln(w, &text));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1294:9
[INFO] [stderr]      |
[INFO] [stderr] 1294 |         try!(Read::read_to_string(&mut &*writer, &mut s));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1592:9
[INFO] [stderr]      |
[INFO] [stderr] 1592 |         try!(Read::read_to_string(&mut &*writer, &mut s));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:937:13
[INFO] [stderr]     |
[INFO] [stderr] 937 |             try!(w.write_all(s.as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:946:5
[INFO] [stderr]     |
[INFO] [stderr] 946 |     try!(writeln(w, &[g.kind().keyword(), " ", g.graph_id().as_slice(), " {"]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:950:9
[INFO] [stderr]     |
[INFO] [stderr] 950 |         try!(indent(w));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:989:9
[INFO] [stderr]     |
[INFO] [stderr] 989 |         try!(writeln(w, &text));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1000:9
[INFO] [stderr]      |
[INFO] [stderr] 1000 |         try!(indent(w));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1051:9
[INFO] [stderr]      |
[INFO] [stderr] 1051 |         try!(writeln(w, &text));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "6da68199587264d95e87a93f62206f4c4ab08431e993e781a35b55b34e9ace8e"`
[INFO] running `"docker" "rm" "-f" "6da68199587264d95e87a93f62206f4c4ab08431e993e781a35b55b34e9ace8e"`
[INFO] [stdout] 6da68199587264d95e87a93f62206f4c4ab08431e993e781a35b55b34e9ace8e