[INFO] fetching crate iron-test 0.6.0...
[INFO] checking iron-test-0.6.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate iron-test 0.6.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate iron-test 0.6.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iron-test 0.6.0
[INFO] finished tweaking crates.io crate iron-test 0.6.0
[INFO] tweaked toml for crates.io crate iron-test 0.6.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9164269cc82ff4203ca05b2318229e4149a301f41c6e02fad4b655acef9ca824
[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" "9164269cc82ff4203ca05b2318229e4149a301f41c6e02fad4b655acef9ca824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9164269cc82ff4203ca05b2318229e4149a301f41c6e02fad4b655acef9ca824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9164269cc82ff4203ca05b2318229e4149a301f41c6e02fad4b655acef9ca824", kill_on_drop: false }`
[INFO] [stdout] 9164269cc82ff4203ca05b2318229e4149a301f41c6e02fad4b655acef9ca824
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f459f52689ce89a059a52e00c2fadf416a8a49b3bc498b6d03c83e487a9c39b2
[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" "f459f52689ce89a059a52e00c2fadf416a8a49b3bc498b6d03c83e487a9c39b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking persistent v0.4.0
[INFO] [stderr]     Checking iron-test v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/project_builder.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         try!(mkdir_recursive(&self.dirname()));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/project_builder.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut file = try!(
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/project_builder.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |             try!(file.mk());
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/request.rs:80:61
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut buf_reader = BufReader::new(&mut stream as &mut NetworkStream);
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-test`.
[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] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f459f52689ce89a059a52e00c2fadf416a8a49b3bc498b6d03c83e487a9c39b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f459f52689ce89a059a52e00c2fadf416a8a49b3bc498b6d03c83e487a9c39b2", kill_on_drop: false }`
[INFO] [stdout] f459f52689ce89a059a52e00c2fadf416a8a49b3bc498b6d03c83e487a9c39b2