[INFO] cloning repository https://github.com/zcericola/rust-presentation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zcericola/rust-presentation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzcericola%2Frust-presentation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzcericola%2Frust-presentation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c5f1f1383fc1e9fbb72e8186c4cdfc0709992a2
[INFO] checking zcericola/rust-presentation against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzcericola%2Frust-presentation" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zcericola/rust-presentation
[INFO] finished tweaking git repo https://github.com/zcericola/rust-presentation
[INFO] tweaked toml for git repo https://github.com/zcericola/rust-presentation written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zcericola/rust-presentation on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zcericola/rust-presentation 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bec8c66f3e4a68439ff6b6c02f6f6b0f8d4a9f76f5a6898a302eece87b7837a6
[INFO] running `Command { std: "docker" "start" "-a" "bec8c66f3e4a68439ff6b6c02f6f6b0f8d4a9f76f5a6898a302eece87b7837a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bec8c66f3e4a68439ff6b6c02f6f6b0f8d4a9f76f5a6898a302eece87b7837a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bec8c66f3e4a68439ff6b6c02f6f6b0f8d4a9f76f5a6898a302eece87b7837a6", kill_on_drop: false }`
[INFO] [stdout] bec8c66f3e4a68439ff6b6c02f6f6b0f8d4a9f76f5a6898a302eece87b7837a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b0c90791f6d0cf31991d81f7bbc611b1e6b767db81b29a4832dd071c9efe01f
[INFO] running `Command { std: "docker" "start" "-a" "0b0c90791f6d0cf31991d81f7bbc611b1e6b767db81b29a4832dd071c9efe01f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-presentation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `x`
[INFO] [stdout]   --> src/variables/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let x = 5;
[INFO] [stdout]    |         - first assignment to `x`
[INFO] [stdout] 13 |     println!("The value of x is {}", x);
[INFO] [stdout] 14 |     x = 6;
[INFO] [stdout]    |     ^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut x = 5;
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `x`
[INFO] [stdout]   --> src/variables/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let x = 5;
[INFO] [stdout]    |         - first assignment to `x`
[INFO] [stdout] 13 |     println!("The value of x is {}", x);
[INFO] [stdout] 14 |     x = 6;
[INFO] [stdout]    |     ^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut x = 5;
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-presentation` (bin "rust-presentation" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust-presentation` (bin "rust-presentation") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0b0c90791f6d0cf31991d81f7bbc611b1e6b767db81b29a4832dd071c9efe01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0c90791f6d0cf31991d81f7bbc611b1e6b767db81b29a4832dd071c9efe01f", kill_on_drop: false }`
[INFO] [stdout] 0b0c90791f6d0cf31991d81f7bbc611b1e6b767db81b29a4832dd071c9efe01f
