[INFO] fetching crate rusty-cli 0.1.0...
[INFO] building rusty-cli-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rusty-cli 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rusty-cli 0.1.0
[INFO] finished tweaking crates.io crate rusty-cli 0.1.0
[INFO] tweaked toml for crates.io crate rusty-cli 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-cli 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] crate crates.io crate rusty-cli 0.1.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.31
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded platform-dirs v0.3.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.31
[INFO] [stderr]   Downloaded terminal_size v0.1.17
[INFO] [stderr]   Downloaded proc-macro2 v1.0.40
[INFO] [stderr]   Downloaded fastrand v1.7.0
[INFO] [stderr]   Downloaded zeroize v1.5.6
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded dirs-next v1.0.2
[INFO] [stderr]   Downloaded unicode-width v0.1.9
[INFO] [stderr]   Downloaded console v0.15.0
[INFO] [stderr]   Downloaded dialoguer v0.10.1
[INFO] [stderr]   Downloaded syn v1.0.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8ca0988aa6e5b5b94486de6818d54257000de087916fa481af26ff46fcfb7037
[INFO] running `Command { std: "docker" "start" "-a" "8ca0988aa6e5b5b94486de6818d54257000de087916fa481af26ff46fcfb7037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ca0988aa6e5b5b94486de6818d54257000de087916fa481af26ff46fcfb7037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca0988aa6e5b5b94486de6818d54257000de087916fa481af26ff46fcfb7037", kill_on_drop: false }`
[INFO] [stdout] 8ca0988aa6e5b5b94486de6818d54257000de087916fa481af26ff46fcfb7037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6770c7bd08b8d2b83763625708e75a2dc53b2e7a888941b22937a4dc21bb7639
[INFO] running `Command { std: "docker" "start" "-a" "6770c7bd08b8d2b83763625708e75a2dc53b2e7a888941b22937a4dc21bb7639", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling zeroize v1.5.6
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling dirs-next v1.0.2
[INFO] [stderr]    Compiling platform-dirs v0.3.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling dialoguer v0.10.1
[INFO] [stderr]    Compiling rusty-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/std/src/path.rs" }) }
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/file_reader.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |             fs::create_dir(path.clone()).expect("Cannot create root data directory");
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 25 -             fs::create_dir(path.clone()).expect("Cannot create root data directory");
[INFO] [stdout] 25 +             fs::create_dir(path).expect("Cannot create root data directory");
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.37s
[INFO] running `Command { std: "docker" "inspect" "6770c7bd08b8d2b83763625708e75a2dc53b2e7a888941b22937a4dc21bb7639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6770c7bd08b8d2b83763625708e75a2dc53b2e7a888941b22937a4dc21bb7639", kill_on_drop: false }`
[INFO] [stdout] 6770c7bd08b8d2b83763625708e75a2dc53b2e7a888941b22937a4dc21bb7639
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f0179c09e839b77a42a7ee62d6c633bbfc6c562220d51b74bc38ef3f77ef3c1f
[INFO] running `Command { std: "docker" "start" "-a" "f0179c09e839b77a42a7ee62d6c633bbfc6c562220d51b74bc38ef3f77ef3c1f", kill_on_drop: false }`
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/std/src/path.rs" }) }
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/file_reader.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |             fs::create_dir(path.clone()).expect("Cannot create root data directory");
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 25 -             fs::create_dir(path.clone()).expect("Cannot create root data directory");
[INFO] [stdout] 25 +             fs::create_dir(path).expect("Cannot create root data directory");
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusty-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]  --> examples/default_no_argument_message.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn default_callback(flags: Flags) {
[INFO] [stdout]   |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> examples/pong_default.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> examples/pong_default.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::Args`
[INFO] [stdout]  --> examples/pong_default.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::Args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> examples/pong_default.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]   --> examples/pong_default.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn executor(flags: Flags) {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/std/src/path.rs" }) }
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/file_reader.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |             fs::create_dir(path.clone()).expect("Cannot create root data directory");
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 25 -             fs::create_dir(path.clone()).expect("Cannot create root data directory");
[INFO] [stdout] 25 +             fs::create_dir(path).expect("Cannot create root data directory");
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "f0179c09e839b77a42a7ee62d6c633bbfc6c562220d51b74bc38ef3f77ef3c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0179c09e839b77a42a7ee62d6c633bbfc6c562220d51b74bc38ef3f77ef3c1f", kill_on_drop: false }`
[INFO] [stdout] f0179c09e839b77a42a7ee62d6c633bbfc6c562220d51b74bc38ef3f77ef3c1f
