[INFO] cloning repository https://github.com/emmehandes/rshell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emmehandes/rshell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmehandes%2Frshell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmehandes%2Frshell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4ab2a2f82214344e52b50774ecc0df9a681ab94
[INFO] checking emmehandes/rshell against try#121a90d34197f711021eeb158e7f4184b8be8ceb for pr-140313
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmehandes%2Frshell" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emmehandes/rshell on toolchain 121a90d34197f711021eeb158e7f4184b8be8ceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/emmehandes/rshell
[INFO] finished tweaking git repo https://github.com/emmehandes/rshell
[INFO] tweaked toml for git repo https://github.com/emmehandes/rshell written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/emmehandes/rshell 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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding itoa v1.0.15
[INFO] [stderr]       Adding memchr v2.7.4
[INFO] [stderr]       Adding proc-macro2 v1.0.95
[INFO] [stderr]       Adding quote v1.0.40
[INFO] [stderr]       Adding ryu v1.0.20
[INFO] [stderr]       Adding serde v1.0.219
[INFO] [stderr]       Adding serde_derive v1.0.219
[INFO] [stderr]       Adding serde_json v1.0.140
[INFO] [stderr]       Adding syn v2.0.101
[INFO] [stderr]       Adding unicode-ident v1.0.18
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17ab9efd7c6d01b3b190a181eecfe165890873678badba5bb236084a1687d338
[INFO] running `Command { std: "docker" "start" "-a" "17ab9efd7c6d01b3b190a181eecfe165890873678badba5bb236084a1687d338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17ab9efd7c6d01b3b190a181eecfe165890873678badba5bb236084a1687d338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ab9efd7c6d01b3b190a181eecfe165890873678badba5bb236084a1687d338", kill_on_drop: false }`
[INFO] [stdout] 17ab9efd7c6d01b3b190a181eecfe165890873678badba5bb236084a1687d338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d60dd376c2ea891f3834bf1249414d6b4211ecaa9ce0c9a3c7aa475d5295a454
[INFO] running `Command { std: "docker" "start" "-a" "d60dd376c2ea891f3834bf1249414d6b4211ecaa9ce0c9a3c7aa475d5295a454", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking rshell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ExitStatus::code` that must be used
[INFO] [stdout]   --> src/builtins/parser.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(mut child) => { child.wait().expect("Failed to execute child process").code(); }
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(mut child) => { let _ = child.wait().expect("Failed to execute child process").code(); }
[INFO] [stdout]    |                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ExitStatus::code` that must be used
[INFO] [stdout]   --> src/builtins/parser.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(mut child) => { child.wait().expect("Failed to execute child process").code(); }
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(mut child) => { let _ = child.wait().expect("Failed to execute child process").code(); }
[INFO] [stdout]    |                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `Command { std: "docker" "inspect" "d60dd376c2ea891f3834bf1249414d6b4211ecaa9ce0c9a3c7aa475d5295a454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d60dd376c2ea891f3834bf1249414d6b4211ecaa9ce0c9a3c7aa475d5295a454", kill_on_drop: false }`
[INFO] [stdout] d60dd376c2ea891f3834bf1249414d6b4211ecaa9ce0c9a3c7aa475d5295a454