[INFO] cloning repository https://github.com/fzakaria/scriptr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fzakaria/scriptr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzakaria%2Fscriptr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzakaria%2Fscriptr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08e9f8cc4f36aae3e2378534a2a0a9b27ee77fdc
[INFO] checking fzakaria/scriptr against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzakaria%2Fscriptr" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fzakaria/scriptr on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fzakaria/scriptr
[INFO] finished tweaking git repo https://github.com/fzakaria/scriptr
[INFO] tweaked toml for git repo https://github.com/fzakaria/scriptr written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/fzakaria/scriptr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.1.8
[INFO] [stderr]   Downloaded simple-error v0.2.1
[INFO] [stderr]   Downloaded pty v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e628770fddbccddc6672fc8ab8efa2cad72fb5b8413f1cde99126360c893aba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3e628770fddbccddc6672fc8ab8efa2cad72fb5b8413f1cde99126360c893aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e628770fddbccddc6672fc8ab8efa2cad72fb5b8413f1cde99126360c893aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e628770fddbccddc6672fc8ab8efa2cad72fb5b8413f1cde99126360c893aba", kill_on_drop: false }`
[INFO] [stdout] 3e628770fddbccddc6672fc8ab8efa2cad72fb5b8413f1cde99126360c893aba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db3dcc52fe76875dc4f88e18cc59ed26249f435eee9d5113497ff57744283972
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "db3dcc52fe76875dc4f88e18cc59ed26249f435eee9d5113497ff57744283972", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking simple-error v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pty v0.2.2
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking scriptr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         nix::unistd::execv(&self.shell, &[&self.shell])?;
[INFO] [stdout]    |         ------------------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 34 |         Ok(())
[INFO] [stdout]    |         ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         nix::unistd::execv(&self.shell, &[&self.shell])?;
[INFO] [stdout]    |         ------------------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 34 |         Ok(())
[INFO] [stdout]    |         ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.00s
[INFO] running `Command { std: "docker" "inspect" "db3dcc52fe76875dc4f88e18cc59ed26249f435eee9d5113497ff57744283972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3dcc52fe76875dc4f88e18cc59ed26249f435eee9d5113497ff57744283972", kill_on_drop: false }`
[INFO] [stdout] db3dcc52fe76875dc4f88e18cc59ed26249f435eee9d5113497ff57744283972