[INFO] cloning repository https://github.com/freegnu/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/freegnu/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreegnu%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreegnu%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f302e7cd3b498eb0b657bd2dd734f142e8a8f0bf
[INFO] checking freegnu/learning-rust against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreegnu%2Flearning-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freegnu/learning-rust on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/freegnu/learning-rust
[INFO] finished tweaking git repo https://github.com/freegnu/learning-rust
[INFO] tweaked toml for git repo https://github.com/freegnu/learning-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/freegnu/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-executor v0.1.1
[INFO] [stderr]   Downloaded slab v0.3.0
[INFO] [stderr]   Downloaded mime v0.3.5
[INFO] [stderr]   Downloaded httparse v1.2.4
[INFO] [stderr]   Downloaded tokio-proto v0.1.1
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.1
[INFO] [stderr]   Downloaded bytes v0.4.6
[INFO] [stderr]   Downloaded tokio-io v0.1.6
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded crossbeam-deque v0.3.0
[INFO] [stderr]   Downloaded smallvec v0.2.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.4.1
[INFO] [stderr]   Downloaded tokio v0.1.4
[INFO] [stderr]   Downloaded relay v0.1.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.3.2
[INFO] [stderr]   Downloaded tokio-udp v0.1.0
[INFO] [stderr]   Downloaded time v0.1.39
[INFO] [stderr]   Downloaded tokio-service v0.1.0
[INFO] [stderr]   Downloaded tokio-tcp v0.1.0
[INFO] [stderr]   Downloaded lazycell v0.6.0
[INFO] [stderr]   Downloaded hyper v0.11.24
[INFO] [stderr]   Downloaded slab v0.4.0
[INFO] [stderr]   Downloaded mio v0.6.14
[INFO] [stderr]   Downloaded tokio-core v0.1.16
[INFO] [stderr]   Downloaded tokio-reactor v0.1.1
[INFO] [stderr]   Downloaded take v0.1.0
[INFO] [stderr]   Downloaded scoped-tls v0.1.1
[INFO] [stderr]   Downloaded unicase v2.1.0
[INFO] [stderr]   Downloaded futures v0.1.20
[INFO] running `Command { std: "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" "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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d5180a9f848a067897512ea9a58ad96b2174682ff408749f8ca4f8eef84672b
[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" "8d5180a9f848a067897512ea9a58ad96b2174682ff408749f8ca4f8eef84672b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d5180a9f848a067897512ea9a58ad96b2174682ff408749f8ca4f8eef84672b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d5180a9f848a067897512ea9a58ad96b2174682ff408749f8ca4f8eef84672b", kill_on_drop: false }`
[INFO] [stdout] 8d5180a9f848a067897512ea9a58ad96b2174682ff408749f8ca4f8eef84672b
[INFO] running `Command { std: "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" "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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58fa10e841ebdd2a6b6cc27ed275f69df0e950fc01b1ebc5b9409f0ade85adb2
[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" "58fa10e841ebdd2a6b6cc27ed275f69df0e950fc01b1ebc5b9409f0ade85adb2", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking futures v0.1.20
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking base64 v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.3.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking mime v0.3.5
[INFO] [stderr]     Checking tokio-executor v0.1.1
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tokio-threadpool v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio v0.1.4
[INFO] [stderr]     Checking tokio-core v0.1.16
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hyper v0.11.24
[INFO] [stderr]     Checking learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ByteStr`
[INFO] [stdout]   --> src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let bstr = ByteStr::new("http://web.mta.info/status/serviceStatus.txt");
[INFO] [stdout]    |                ^^^^^^^ use of undeclared type `ByteStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ByteStr`
[INFO] [stdout]   --> src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let bstr = ByteStr::new("http://web.mta.info/status/serviceStatus.txt");
[INFO] [stdout]    |                ^^^^^^^ use of undeclared type `ByteStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0624]: associated function `new` is private
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let uri = Uri::new(bstr).unwrap();
[INFO] [stdout]    |                    ^^^ private associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `send` found for struct `FutureResponse` in the current scope
[INFO] [stdout]   --> src/main.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .send()
[INFO] [stdout]    |          ^^^^ method not found in `FutureResponse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599, E0624.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learning-rust`
[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[E0624]: associated function `new` is private
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let uri = Uri::new(bstr).unwrap();
[INFO] [stdout]    |                    ^^^ private associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `send` found for struct `FutureResponse` in the current scope
[INFO] [stdout]   --> src/main.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .send()
[INFO] [stdout]    |          ^^^^ method not found in `FutureResponse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599, E0624.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "58fa10e841ebdd2a6b6cc27ed275f69df0e950fc01b1ebc5b9409f0ade85adb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58fa10e841ebdd2a6b6cc27ed275f69df0e950fc01b1ebc5b9409f0ade85adb2", kill_on_drop: false }`
[INFO] [stdout] 58fa10e841ebdd2a6b6cc27ed275f69df0e950fc01b1ebc5b9409f0ade85adb2