[INFO] cloning repository https://github.com/mahavirdash/demo-project-SIT
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahavirdash/demo-project-SIT" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahavirdash%2Fdemo-project-SIT", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahavirdash%2Fdemo-project-SIT'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0071b2f8447a138fe50c028837b31bac3da04ff2
[INFO] testing mahavirdash/demo-project-SIT against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahavirdash%2Fdemo-project-SIT" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mahavirdash/demo-project-SIT on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mahavirdash/demo-project-SIT
[INFO] finished tweaking git repo https://github.com/mahavirdash/demo-project-SIT
[INFO] tweaked toml for git repo https://github.com/mahavirdash/demo-project-SIT written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mahavirdash/demo-project-SIT 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" "+552a959051cebf8f88a8f558399baf733bec9ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52940b5ba842931dc038fce30f7424eea197cc1cf0e48f0ff66ca8ddefda12b1
[INFO] running `Command { std: "docker" "start" "-a" "52940b5ba842931dc038fce30f7424eea197cc1cf0e48f0ff66ca8ddefda12b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52940b5ba842931dc038fce30f7424eea197cc1cf0e48f0ff66ca8ddefda12b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52940b5ba842931dc038fce30f7424eea197cc1cf0e48f0ff66ca8ddefda12b1", kill_on_drop: false }`
[INFO] [stdout] 52940b5ba842931dc038fce30f7424eea197cc1cf0e48f0ff66ca8ddefda12b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c8f0ed15e51b9e787e2699a974d4c4bf1b5724b7188409791cd627ec6107544
[INFO] running `Command { std: "docker" "start" "-a" "2c8f0ed15e51b9e787e2699a974d4c4bf1b5724b7188409791cd627ec6107544", kill_on_drop: false }`
[INFO] [stderr]    Compiling demo-project-SIT v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0369]: cannot multiply `String` by `String`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |      return a * b 
[INFO] [stdout]   |             - ^ - String
[INFO] [stdout]   |             |
[INFO] [stdout]   |             String
[INFO] [stdout]   |
[INFO] [stdout] note: the foreign item type `String` doesn't implement `Mul`
[INFO] [stdout]  --> /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/string.rs:362:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: not implement `Mul`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `demo-project-SIT` (bin "demo-project-SIT") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2c8f0ed15e51b9e787e2699a974d4c4bf1b5724b7188409791cd627ec6107544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8f0ed15e51b9e787e2699a974d4c4bf1b5724b7188409791cd627ec6107544", kill_on_drop: false }`
[INFO] [stdout] 2c8f0ed15e51b9e787e2699a974d4c4bf1b5724b7188409791cd627ec6107544