[INFO] fetching crate fsio 0.4.1...
[INFO] checking fsio-0.4.1 against master#eeb94be79adc9df7a09ad0b2421f16e60e6d932c for pr-152971
[INFO] extracting crate fsio 0.4.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate fsio 0.4.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fsio 0.4.1
[INFO] tweaked toml for crates.io crate fsio 0.4.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fsio 0.4.1 on toolchain eeb94be79adc9df7a09ad0b2421f16e60e6d932c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fsio 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73189b85c1eb222592be82a26e23c5e32051d7417e56bda81205b4b50594134d
[INFO] running `Command { std: "docker" "start" "-a" "73189b85c1eb222592be82a26e23c5e32051d7417e56bda81205b4b50594134d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73189b85c1eb222592be82a26e23c5e32051d7417e56bda81205b4b50594134d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73189b85c1eb222592be82a26e23c5e32051d7417e56bda81205b4b50594134d", kill_on_drop: false }`
[INFO] [stdout] 73189b85c1eb222592be82a26e23c5e32051d7417e56bda81205b4b50594134d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 349f82dcc6529c2725438e85f2190aee6e4bef67de974f43f03e33bdb3ee6fa6
[INFO] running `Command { std: "docker" "start" "-a" "349f82dcc6529c2725438e85f2190aee6e4bef67de974f43f03e33bdb3ee6fa6", kill_on_drop: false }`
[INFO] [stderr]     Checking fsio v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/path/./as_path_test.rs:24:24
[INFO] [stdout]     |
[INFO] [stdout]  24 |     let as_path = path.as_path();
[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 `as_path::AsPath::as_path(...)` to keep using the current method
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 |     future_incompatible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unstable_name_collisions)]` implied by `#[deny(future_incompatible)]`
[INFO] [stdout] help: add `#![feature(str_as_str)]` to the crate attributes to enable `std::path::Path::as_path`
[INFO] [stdout]    --> src/lib.rs:120:1
[INFO] [stdout]     |
[INFO] [stdout] 120 + #![feature(str_as_str)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fsio` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> tests/path_test.rs:27:24
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let as_path = path.as_path();
[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 `as_path(...)` 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(str_as_str)]` to the crate attributes to enable `Path::as_path`
[INFO] [stdout]    |
[INFO] [stdout]  1 + #![feature(str_as_str)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "349f82dcc6529c2725438e85f2190aee6e4bef67de974f43f03e33bdb3ee6fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349f82dcc6529c2725438e85f2190aee6e4bef67de974f43f03e33bdb3ee6fa6", kill_on_drop: false }`
[INFO] [stdout] 349f82dcc6529c2725438e85f2190aee6e4bef67de974f43f03e33bdb3ee6fa6