[INFO] cloning repository https://github.com/springscott/minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/springscott/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringscott%2Fminigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringscott%2Fminigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bece86ef9695013d364c9fb4e0a5a4e33402e6db
[INFO] testing springscott/minigrep against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringscott%2Fminigrep" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/springscott/minigrep on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/springscott/minigrep
[INFO] finished tweaking git repo https://github.com/springscott/minigrep
[INFO] tweaked toml for git repo https://github.com/springscott/minigrep written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/springscott/minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68ee9466174962cc86bc6e9ebb79aa009c6bc3e5ac38211da8115a8c042525b7
[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" "68ee9466174962cc86bc6e9ebb79aa009c6bc3e5ac38211da8115a8c042525b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68ee9466174962cc86bc6e9ebb79aa009c6bc3e5ac38211da8115a8c042525b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ee9466174962cc86bc6e9ebb79aa009c6bc3e5ac38211da8115a8c042525b7", kill_on_drop: false }`
[INFO] [stdout] 68ee9466174962cc86bc6e9ebb79aa009c6bc3e5ac38211da8115a8c042525b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb5b1c0bcfcbdef6b736f67737d9afed80563f0c6d41a262434affee7af28bc8
[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" "eb5b1c0bcfcbdef6b736f67737d9afed80563f0c6d41a262434affee7af28bc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `=>`, `if`, or `|`, found `==`
[INFO] [stdout]   --> src/lib.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |             Some(arg) ==> arg,
[INFO] [stdout]    |                       ^^ expected one of `=>`, `if`, or `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `=>`, `if`, or `|`, found `==`
[INFO] [stdout]   --> src/lib.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |             Some(arg) ==> arg,
[INFO] [stdout]    |                       ^^ expected one of `=>`, `if`, or `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/lib.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |           let query = match args.next() {
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 16 | |             Some(arg) ==> arg,
[INFO] [stdout] 17 | |             None => return Err("Didn't get a query string"),
[INFO] [stdout] 18 | |         };
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 19 | 
[INFO] [stdout] 20 | /         let filename = match args.next() {
[INFO] [stdout] 21 | |             Some(arg) ==> arg,
[INFO] [stdout] 22 | |             None => return Err("Didn't get a query string"),
[INFO] [stdout] 23 | |         };
[INFO] [stdout]    | |__________^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minigrep` due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "eb5b1c0bcfcbdef6b736f67737d9afed80563f0c6d41a262434affee7af28bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb5b1c0bcfcbdef6b736f67737d9afed80563f0c6d41a262434affee7af28bc8", kill_on_drop: false }`
[INFO] [stdout] eb5b1c0bcfcbdef6b736f67737d9afed80563f0c6d41a262434affee7af28bc8