[INFO] updating cached repository https://github.com/popons/echod-rust
[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] 661fe627c1b05b492a19b701f17c591fed0eb6ca
[INFO] checking popons/echod-rust against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpopons%2Fechod-rust" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/popons/echod-rust on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/popons/echod-rust
[INFO] finished tweaking git repo https://github.com/popons/echod-rust
[INFO] tweaked toml for git repo https://github.com/popons/echod-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/popons/echod-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 91ccf5598b8b2c9f80e3b16d6870f6b35c4efc694acc37a2935506ec28d7a58f
[INFO] running `"docker" "start" "-a" "91ccf5598b8b2c9f80e3b16d6870f6b35c4efc694acc37a2935506ec28d7a58f"`
[INFO] [stderr]     Checking echod v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> src/main.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let lis = try!(TcpListener::bind("0.0.0.0:12345"));
[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/main.rs:10:26
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let mut stream = try!(stream);
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:11:37
[INFO] [stderr]    |
[INFO] [stderr] 11 |         println!("{:?} connected.", try!(stream.peer_addr()));
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:15:25
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 let n = try!(stream.read(&mut b));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |                     println!("{:?} closed.", try!(stream.peer_addr()));
[INFO] [stderr]    |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     try!(stream.write(&b[0..n]));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> src/main.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let lis = try!(TcpListener::bind("0.0.0.0:12345"));
[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/main.rs:10:26
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let mut stream = try!(stream);
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:11:37
[INFO] [stderr]    |
[INFO] [stderr] 11 |         println!("{:?} connected.", try!(stream.peer_addr()));
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:15:25
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 let n = try!(stream.read(&mut b));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |                     println!("{:?} closed.", try!(stream.peer_addr()));
[INFO] [stderr]    |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     try!(stream.write(&b[0..n]));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "91ccf5598b8b2c9f80e3b16d6870f6b35c4efc694acc37a2935506ec28d7a58f"`
[INFO] running `"docker" "rm" "-f" "91ccf5598b8b2c9f80e3b16d6870f6b35c4efc694acc37a2935506ec28d7a58f"`
[INFO] [stdout] 91ccf5598b8b2c9f80e3b16d6870f6b35c4efc694acc37a2935506ec28d7a58f