[INFO] fetching crate pi_ucd 0.1.0...
[INFO] building pi_ucd-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate pi_ucd 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate pi_ucd 0.1.0
[INFO] finished tweaking crates.io crate pi_ucd 0.1.0
[INFO] tweaked toml for crates.io crate pi_ucd 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_ucd 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a6c358fcceb9e0dd21dd824ad48f2698b13238950af94011ff54f53d34cc9c5
[INFO] running `Command { std: "docker" "start" "-a" "3a6c358fcceb9e0dd21dd824ad48f2698b13238950af94011ff54f53d34cc9c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a6c358fcceb9e0dd21dd824ad48f2698b13238950af94011ff54f53d34cc9c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6c358fcceb9e0dd21dd824ad48f2698b13238950af94011ff54f53d34cc9c5", kill_on_drop: false }`
[INFO] [stdout] 3a6c358fcceb9e0dd21dd824ad48f2698b13238950af94011ff54f53d34cc9c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a87f8d7aef99e7a73edbb154ad31335f5d4698e1947a4905f52afede53369df0
[INFO] running `Command { std: "docker" "start" "-a" "a87f8d7aef99e7a73edbb154ad31335f5d4698e1947a4905f52afede53369df0", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_ucd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "a87f8d7aef99e7a73edbb154ad31335f5d4698e1947a4905f52afede53369df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87f8d7aef99e7a73edbb154ad31335f5d4698e1947a4905f52afede53369df0", kill_on_drop: false }`
[INFO] [stdout] a87f8d7aef99e7a73edbb154ad31335f5d4698e1947a4905f52afede53369df0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12c14e638a4f891a930a21911b13a1a05db9e05a6cddba8de579ab82ab941781
[INFO] running `Command { std: "docker" "start" "-a" "12c14e638a4f891a930a21911b13a1a05db9e05a6cddba8de579ab82ab941781", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_ucd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:273:34
[INFO] [stdout]     |
[INFO] [stdout] 273 |     println!("xxxxxxxxxxx:{}", c.is_cased()); 
[INFO] [stdout]     |                                  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Codepoint::is_cased(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(char_internals)]` to the crate attributes to enable `char::methods::<impl char>::is_cased`
[INFO] [stdout]     |
[INFO] [stdout] 152 + #![feature(char_internals)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:274:35
[INFO] [stdout]     |
[INFO] [stdout] 274 |     println!("xxxxxxxxxxx:{}", c1.is_cased());
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Codepoint::is_cased(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(char_internals)]` to the crate attributes to enable `char::methods::<impl char>::is_cased`
[INFO] [stdout]     |
[INFO] [stdout] 152 + #![feature(char_internals)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:275:35
[INFO] [stdout]     |
[INFO] [stdout] 275 |     println!("xxxxxxxxxxx:{}", c2.is_cased()); 
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Codepoint::is_cased(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(char_internals)]` to the crate attributes to enable `char::methods::<impl char>::is_cased`
[INFO] [stdout]     |
[INFO] [stdout] 152 + #![feature(char_internals)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:276:35
[INFO] [stdout]     |
[INFO] [stdout] 276 |     println!("xxxxxxxxxxx:{}", c3.is_cased());
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Codepoint::is_cased(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(char_internals)]` to the crate attributes to enable `char::methods::<impl char>::is_cased`
[INFO] [stdout]     |
[INFO] [stdout] 152 + #![feature(char_internals)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:277:35
[INFO] [stdout]     |
[INFO] [stdout] 277 |     println!("xxxxxxxxxxx:{}", c4.is_cased());
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Codepoint::is_cased(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(char_internals)]` to the crate attributes to enable `char::methods::<impl char>::is_cased`
[INFO] [stdout]     |
[INFO] [stdout] 152 + #![feature(char_internals)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:278:35
[INFO] [stdout]     |
[INFO] [stdout] 278 |     println!("xxxxxxxxxxx:{}", c5.is_cased());
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Codepoint::is_cased(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(char_internals)]` to the crate attributes to enable `char::methods::<impl char>::is_cased`
[INFO] [stdout]     |
[INFO] [stdout] 152 + #![feature(char_internals)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "12c14e638a4f891a930a21911b13a1a05db9e05a6cddba8de579ab82ab941781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c14e638a4f891a930a21911b13a1a05db9e05a6cddba8de579ab82ab941781", kill_on_drop: false }`
[INFO] [stdout] 12c14e638a4f891a930a21911b13a1a05db9e05a6cddba8de579ab82ab941781