[INFO] fetching crate seek_bufread 1.2.2...
[INFO] checking seek_bufread-1.2.2 against beta for pr-78714
[INFO] extracting crate seek_bufread 1.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate seek_bufread 1.2.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seek_bufread 1.2.2
[INFO] finished tweaking crates.io crate seek_bufread 1.2.2
[INFO] tweaked toml for crates.io crate seek_bufread 1.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41f57cf79df7cae205dd1bbf0def56fd816087db95eac3ff6e002f51ab5e3ba4
[INFO] running `Command { std: "docker" "start" "-a" "41f57cf79df7cae205dd1bbf0def56fd816087db95eac3ff6e002f51ab5e3ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41f57cf79df7cae205dd1bbf0def56fd816087db95eac3ff6e002f51ab5e3ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f57cf79df7cae205dd1bbf0def56fd816087db95eac3ff6e002f51ab5e3ba4", kill_on_drop: false }`
[INFO] [stdout] 41f57cf79df7cae205dd1bbf0def56fd816087db95eac3ff6e002f51ab5e3ba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7083c45c812aac19232494f606a5aeae41fcac75c2f621afd169bfef884389aa
[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" "7083c45c812aac19232494f606a5aeae41fcac75c2f621afd169bfef884389aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking seek_bufread v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         try!(self.inner.seek(SeekFrom::Start(self.absolute_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/lib.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.absolute_pos = try!(self.inner.seek(pos));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:178:26
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let n_read = try!(try!(self.fill_buf()).read(&mut buf[n_total..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:178:31
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let n_read = try!(try!(self.fill_buf()).read(&mut buf[n_total..]));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:194:24
[INFO] [stdout]     |
[INFO] [stdout] 194 |             self.cap = try!(self.inner.read(&mut self.buf));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         try!(self.inner.seek(SeekFrom::Start(self.absolute_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/lib.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.absolute_pos = try!(self.inner.seek(pos));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:178:26
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let n_read = try!(try!(self.fill_buf()).read(&mut buf[n_total..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:178:31
[INFO] [stdout]     |
[INFO] [stdout] 178 |             let n_read = try!(try!(self.fill_buf()).read(&mut buf[n_total..]));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:194:24
[INFO] [stdout]     |
[INFO] [stdout] 194 |             self.cap = try!(self.inner.read(&mut self.buf));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/std_compare.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `seek_bufread`
[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] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7083c45c812aac19232494f606a5aeae41fcac75c2f621afd169bfef884389aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7083c45c812aac19232494f606a5aeae41fcac75c2f621afd169bfef884389aa", kill_on_drop: false }`
[INFO] [stdout] 7083c45c812aac19232494f606a5aeae41fcac75c2f621afd169bfef884389aa