[INFO] cloning repository https://github.com/springbov/stupid-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/springbov/stupid-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringbov%2Fstupid-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringbov%2Fstupid-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 404140e8d704cb82d7cc510c3a9e96be39c5444b
[INFO] testing springbov/stupid-shell against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringbov%2Fstupid-shell" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/springbov/stupid-shell on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/springbov/stupid-shell
[INFO] finished tweaking git repo https://github.com/springbov/stupid-shell
[INFO] tweaked toml for git repo https://github.com/springbov/stupid-shell written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/springbov/stupid-shell already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 086f10ef922187b10b67b7e70b3f5ad00dfbc84504cccb46bc2853f12bacea99
[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" "086f10ef922187b10b67b7e70b3f5ad00dfbc84504cccb46bc2853f12bacea99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "086f10ef922187b10b67b7e70b3f5ad00dfbc84504cccb46bc2853f12bacea99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086f10ef922187b10b67b7e70b3f5ad00dfbc84504cccb46bc2853f12bacea99", kill_on_drop: false }`
[INFO] [stdout] 086f10ef922187b10b67b7e70b3f5ad00dfbc84504cccb46bc2853f12bacea99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3361fea5e23550c635823188aa47acda210c81ad38877e1ceb88745cc4d7e91
[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" "b3361fea5e23550c635823188aa47acda210c81ad38877e1ceb88745cc4d7e91", kill_on_drop: false }`
[INFO] [stderr]    Compiling stupid-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn vim(x: Option<String>) -> Option<String>
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |   fn emacs(x: Option<String>) -> Option<String>
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |   fn nano(x: Option<String>) -> Option<String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |   fn ed(x: Option<String>) -> Option<String>
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |   fn butterfly(x: Option<String>) -> Option<String>
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |   fn life(x: Option<String>) -> Option<String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     io::stdout().flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "b3361fea5e23550c635823188aa47acda210c81ad38877e1ceb88745cc4d7e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3361fea5e23550c635823188aa47acda210c81ad38877e1ceb88745cc4d7e91", kill_on_drop: false }`
[INFO] [stdout] b3361fea5e23550c635823188aa47acda210c81ad38877e1ceb88745cc4d7e91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 727e9e5f24a2efea2c08322a64994e56ad3483deed7956c47feb698f9ab9fb26
[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" "727e9e5f24a2efea2c08322a64994e56ad3483deed7956c47feb698f9ab9fb26", kill_on_drop: false }`
[INFO] [stderr]    Compiling stupid-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn vim(x: Option<String>) -> Option<String>
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |   fn emacs(x: Option<String>) -> Option<String>
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |   fn nano(x: Option<String>) -> Option<String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |   fn ed(x: Option<String>) -> Option<String>
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |   fn butterfly(x: Option<String>) -> Option<String>
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/shell.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |   fn life(x: Option<String>) -> Option<String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     io::stdout().flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "727e9e5f24a2efea2c08322a64994e56ad3483deed7956c47feb698f9ab9fb26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727e9e5f24a2efea2c08322a64994e56ad3483deed7956c47feb698f9ab9fb26", kill_on_drop: false }`
[INFO] [stdout] 727e9e5f24a2efea2c08322a64994e56ad3483deed7956c47feb698f9ab9fb26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2039638481cf53b3ef2bb04acb92d3285906b1d2a7e5c4cc4f5a9d46ba7a2c89
[INFO] running `Command { std: "docker" "start" "-a" "2039638481cf53b3ef2bb04acb92d3285906b1d2a7e5c4cc4f5a9d46ba7a2c89", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/shell.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/shell.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
[INFO] [stderr]    |            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/shell.rs:45:11
[INFO] [stderr]    |
[INFO] [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
[INFO] [stderr]    |           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/shell.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/shell.rs:62:16
[INFO] [stderr]    |
[INFO] [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/shell.rs:70:11
[INFO] [stderr]    |
[INFO] [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
[INFO] [stderr]    |           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     io::stdout().flush();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `stupid-shell` (bin "stupid-shell" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stupid_shell-56315c21d62ce033)
[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" "2039638481cf53b3ef2bb04acb92d3285906b1d2a7e5c4cc4f5a9d46ba7a2c89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2039638481cf53b3ef2bb04acb92d3285906b1d2a7e5c4cc4f5a9d46ba7a2c89", kill_on_drop: false }`
[INFO] [stdout] 2039638481cf53b3ef2bb04acb92d3285906b1d2a7e5c4cc4f5a9d46ba7a2c89