[INFO] cloning repository https://github.com/leonascim21/Rust-Shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leonascim21/Rust-Shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonascim21%2FRust-Shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonascim21%2FRust-Shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e6b8b2aaa6fa4cdadb92919c5fdd16a11d98d11
[INFO] checking leonascim21/Rust-Shell against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonascim21%2FRust-Shell" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leonascim21/Rust-Shell on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leonascim21/Rust-Shell
[INFO] finished tweaking git repo https://github.com/leonascim21/Rust-Shell
[INFO] tweaked toml for git repo https://github.com/leonascim21/Rust-Shell written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leonascim21/Rust-Shell 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" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62eba3bfc6d75d09cc1530b16197aa2d1e8a50ff9c2b345db80c9ea40fee21bc
[INFO] running `Command { std: "docker" "start" "-a" "62eba3bfc6d75d09cc1530b16197aa2d1e8a50ff9c2b345db80c9ea40fee21bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62eba3bfc6d75d09cc1530b16197aa2d1e8a50ff9c2b345db80c9ea40fee21bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62eba3bfc6d75d09cc1530b16197aa2d1e8a50ff9c2b345db80c9ea40fee21bc", kill_on_drop: false }`
[INFO] [stdout] 62eba3bfc6d75d09cc1530b16197aa2d1e8a50ff9c2b345db80c9ea40fee21bc
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 088afdebfed7931837680d97fa34ee2b4a7641150779347dbd697498439e887a
[INFO] running `Command { std: "docker" "start" "-a" "088afdebfed7931837680d97fa34ee2b4a7641150779347dbd697498439e887a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking COP4610Shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `is_success` is never read
[INFO] [stdout]   --> src/external_command_exec.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             is_success = false;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_success` is never read
[INFO] [stdout]   --> src/external_command_exec.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             is_success = false;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_success` is never read
[INFO] [stdout]   --> src/piping.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             is_success = external_command(
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_success` is never read
[INFO] [stdout]   --> src/piping.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             is_success = external_command(
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "088afdebfed7931837680d97fa34ee2b4a7641150779347dbd697498439e887a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088afdebfed7931837680d97fa34ee2b4a7641150779347dbd697498439e887a", kill_on_drop: false }`
[INFO] [stdout] 088afdebfed7931837680d97fa34ee2b4a7641150779347dbd697498439e887a