[INFO] fetching crate ezfile 1.0.0...
[INFO] testing ezfile-1.0.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate ezfile 1.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ezfile 1.0.0
[INFO] finished tweaking crates.io crate ezfile 1.0.0
[INFO] tweaked toml for crates.io crate ezfile 1.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ezfile 1.0.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ezfile 1.0.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24356c625717bd6f6e5c4422caa84d16959cf5e56b1bf835c004f8dddeb11119
[INFO] running `Command { std: "docker" "start" "-a" "24356c625717bd6f6e5c4422caa84d16959cf5e56b1bf835c004f8dddeb11119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24356c625717bd6f6e5c4422caa84d16959cf5e56b1bf835c004f8dddeb11119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24356c625717bd6f6e5c4422caa84d16959cf5e56b1bf835c004f8dddeb11119", kill_on_drop: false }`
[INFO] [stdout] 24356c625717bd6f6e5c4422caa84d16959cf5e56b1bf835c004f8dddeb11119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e39e20a6caa23a93925ee8c1d6768084080dfa4519a7b177e5f3b90d0af779f
[INFO] running `Command { std: "docker" "start" "-a" "6e39e20a6caa23a93925ee8c1d6768084080dfa4519a7b177e5f3b90d0af779f", kill_on_drop: false }`
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling ezfile v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Path::join` that must be used
[INFO] [stdout]   --> src/ezfile.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   dir.join(no_ext_name);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |   let _ = dir.join(no_ext_name);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ezfile.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |        File::create(&new_name);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 22 |        let _ = File::create(&new_name);
[INFO] [stdout]    |        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ezfile.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |        fs::copy(name, new_name);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 23 |        let _ = fs::copy(name, new_name);
[INFO] [stdout]    |        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ezfile.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 |   fs::rename(name, new_name);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |   let _ = fs::rename(name, new_name);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "6e39e20a6caa23a93925ee8c1d6768084080dfa4519a7b177e5f3b90d0af779f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e39e20a6caa23a93925ee8c1d6768084080dfa4519a7b177e5f3b90d0af779f", kill_on_drop: false }`
[INFO] [stdout] 6e39e20a6caa23a93925ee8c1d6768084080dfa4519a7b177e5f3b90d0af779f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2778706ae5555c25248209410323515863008a03a542aa51454eb1a255cbb43
[INFO] running `Command { std: "docker" "start" "-a" "b2778706ae5555c25248209410323515863008a03a542aa51454eb1a255cbb43", kill_on_drop: false }`
[INFO] [stderr]    Compiling ezfile v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Path::join` that must be used
[INFO] [stdout]   --> src/ezfile.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   dir.join(no_ext_name);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |   let _ = dir.join(no_ext_name);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ezfile.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |        File::create(&new_name);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 22 |        let _ = File::create(&new_name);
[INFO] [stdout]    |        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ezfile.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |        fs::copy(name, new_name);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 23 |        let _ = fs::copy(name, new_name);
[INFO] [stdout]    |        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ezfile.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 |   fs::rename(name, new_name);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |   let _ = fs::rename(name, new_name);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "b2778706ae5555c25248209410323515863008a03a542aa51454eb1a255cbb43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2778706ae5555c25248209410323515863008a03a542aa51454eb1a255cbb43", kill_on_drop: false }`
[INFO] [stdout] b2778706ae5555c25248209410323515863008a03a542aa51454eb1a255cbb43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 878b944e2722e6c0b6b173160cd45f8e1de49986cb789a1e08cd5005e214e5e7
[INFO] running `Command { std: "docker" "start" "-a" "878b944e2722e6c0b6b173160cd45f8e1de49986cb789a1e08cd5005e214e5e7", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Path::join` that must be used
[INFO] [stderr]   --> src/ezfile.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   dir.join(no_ext_name);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let _ = dir.join(no_ext_name);
[INFO] [stderr]    |   +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/ezfile.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |        File::create(&new_name);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 22 |        let _ = File::create(&new_name);
[INFO] [stderr]    |        +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/ezfile.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 |        fs::copy(name, new_name);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 23 |        let _ = fs::copy(name, new_name);
[INFO] [stderr]    |        +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/ezfile.rs:81:3
[INFO] [stderr]    |
[INFO] [stderr] 81 |   fs::rename(name, new_name);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 81 |   let _ = fs::rename(name, new_name);
[INFO] [stderr]    |   +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ezfile` (bin "ezfile" test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ezfile-f09edeedb696a05c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "878b944e2722e6c0b6b173160cd45f8e1de49986cb789a1e08cd5005e214e5e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878b944e2722e6c0b6b173160cd45f8e1de49986cb789a1e08cd5005e214e5e7", kill_on_drop: false }`
[INFO] [stdout] 878b944e2722e6c0b6b173160cd45f8e1de49986cb789a1e08cd5005e214e5e7