[INFO] fetching crate ftoa 0.1.1...
[INFO] checking ftoa-0.1.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate ftoa 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ftoa 0.1.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ftoa 0.1.1
[INFO] finished tweaking crates.io crate ftoa 0.1.1
[INFO] tweaked toml for crates.io crate ftoa 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d80a934ce182e26dd73fad75fad196ce6f831b3b7fdf0fdeeb90df2bbeb6fb4
[INFO] running `Command { std: "docker" "start" "-a" "7d80a934ce182e26dd73fad75fad196ce6f831b3b7fdf0fdeeb90df2bbeb6fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d80a934ce182e26dd73fad75fad196ce6f831b3b7fdf0fdeeb90df2bbeb6fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d80a934ce182e26dd73fad75fad196ce6f831b3b7fdf0fdeeb90df2bbeb6fb4", kill_on_drop: false }`
[INFO] [stdout] 7d80a934ce182e26dd73fad75fad196ce6f831b3b7fdf0fdeeb90df2bbeb6fb4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dc18a037ab329e1eff1d4f6c9396b8d9e877dbf88471f88ce53067f7caa26f1
[INFO] running `Command { std: "docker" "start" "-a" "5dc18a037ab329e1eff1d4f6c9396b8d9e877dbf88471f88ce53067f7caa26f1", kill_on_drop: false }`
[INFO] [stderr]     Checking ftoa v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn write<W: io::Write>(self, &mut W) -> io::Result<()>;
[INFO] [stdout]    |                                  ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:476:13
[INFO] [stdout]     |
[INFO] [stdout] 476 |             try!(wr.write_all(b"-"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:479:41
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let mut buffer: [u8; 24] = mem::uninitialized();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn write<W: io::Write>(self, &mut W) -> io::Result<()>;
[INFO] [stdout]    |                                  ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut W`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:476:13
[INFO] [stdout]     |
[INFO] [stdout] 476 |             try!(wr.write_all(b"-"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:479:41
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let mut buffer: [u8; 24] = mem::uninitialized();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5dc18a037ab329e1eff1d4f6c9396b8d9e877dbf88471f88ce53067f7caa26f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc18a037ab329e1eff1d4f6c9396b8d9e877dbf88471f88ce53067f7caa26f1", kill_on_drop: false }`
[INFO] [stdout] 5dc18a037ab329e1eff1d4f6c9396b8d9e877dbf88471f88ce53067f7caa26f1