[INFO] fetching crate reverse_io 0.0.5...
[INFO] checking reverse_io-0.0.5 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate reverse_io 0.0.5 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate reverse_io 0.0.5 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reverse_io 0.0.5
[INFO] finished tweaking crates.io crate reverse_io 0.0.5
[INFO] tweaked toml for crates.io crate reverse_io 0.0.5 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfd349b67aa0ba8c75ceed1850e7f84b7b5b00dcdbe1c8395748a24eca8c0c25
[INFO] running `Command { std: "docker" "start" "-a" "dfd349b67aa0ba8c75ceed1850e7f84b7b5b00dcdbe1c8395748a24eca8c0c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfd349b67aa0ba8c75ceed1850e7f84b7b5b00dcdbe1c8395748a24eca8c0c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd349b67aa0ba8c75ceed1850e7f84b7b5b00dcdbe1c8395748a24eca8c0c25", kill_on_drop: false }`
[INFO] [stdout] dfd349b67aa0ba8c75ceed1850e7f84b7b5b00dcdbe1c8395748a24eca8c0c25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 000191b8bd071021fb8118e077d90118f035dbccec93d704c1487c74540f5f48
[INFO] running `Command { std: "docker" "start" "-a" "000191b8bd071021fb8118e077d90118f035dbccec93d704c1487c74540f5f48", kill_on_drop: false }`
[INFO] [stderr]     Checking reverse_io v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/lib.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let pos = try!(self.0.seek(SeekFrom::Current(0)));
[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:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let n_pos = try!(self.0.seek(SeekFrom::Current(t_dist)));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let ct = try!(self.0.read(&mut buf[..dist]));
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         try!(self.0.seek(SeekFrom::Start(n_pos)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let pos = try!(self.0.seek(SeekFrom::Current(0)));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let new_pos = try!(self.0.seek(SeekFrom::Current(-seek_goal)));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(self.0.write_all(&r_buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.0.seek(SeekFrom::Start(new_pos)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let u_res = try!(self.0.seek(real_pos));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let cur = try!(self.0.seek(SeekFrom::Current(0)));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let end = try!(self.0.seek(SeekFrom::End(0)));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(self.0.seek(SeekFrom::Start(cur)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/lib.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let pos = try!(self.0.seek(SeekFrom::Current(0)));
[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:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let n_pos = try!(self.0.seek(SeekFrom::Current(t_dist)));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let ct = try!(self.0.read(&mut buf[..dist]));
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         try!(self.0.seek(SeekFrom::Start(n_pos)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let pos = try!(self.0.seek(SeekFrom::Current(0)));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let new_pos = try!(self.0.seek(SeekFrom::Current(-seek_goal)));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(self.0.write_all(&r_buf));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.0.seek(SeekFrom::Start(new_pos)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let u_res = try!(self.0.seek(real_pos));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let cur = try!(self.0.seek(SeekFrom::Current(0)));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let end = try!(self.0.seek(SeekFrom::End(0)));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(self.0.seek(SeekFrom::Start(cur)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "000191b8bd071021fb8118e077d90118f035dbccec93d704c1487c74540f5f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "000191b8bd071021fb8118e077d90118f035dbccec93d704c1487c74540f5f48", kill_on_drop: false }`
[INFO] [stdout] 000191b8bd071021fb8118e077d90118f035dbccec93d704c1487c74540f5f48