[INFO] updating cached repository Sanqui/tilde_plays [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Sanqui/tilde_plays [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Sanqui/tilde_plays" "work/ex/beta-1.38-1/sources/1.37.0/gh/Sanqui/tilde_plays"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Sanqui/tilde_plays'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Sanqui/tilde_plays" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sanqui/tilde_plays"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sanqui/tilde_plays'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3f2eb492b3787151fbe9f8ebd2b44fdb64cbd4f9 [INFO] sha for GitHub repo Sanqui/tilde_plays: 3f2eb492b3787151fbe9f8ebd2b44fdb64cbd4f9 [INFO] validating manifest of Sanqui/tilde_plays on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Sanqui/tilde_plays on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Sanqui/tilde_plays [INFO] finished frobbing Sanqui/tilde_plays [INFO] frobbed toml for Sanqui/tilde_plays written to work/ex/beta-1.38-1/sources/1.37.0/gh/Sanqui/tilde_plays/Cargo.toml [INFO] started frobbing Sanqui/tilde_plays [INFO] finished frobbing Sanqui/tilde_plays [INFO] frobbed toml for Sanqui/tilde_plays written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sanqui/tilde_plays/Cargo.toml [INFO] crate Sanqui/tilde_plays already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sanqui/tilde_plays/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing Sanqui/tilde_plays against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sanqui/tilde_plays:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] e7da8dcb0e8dc725a035839afeaa7e827d3de5a0eeddbae03abdec505416f719 [INFO] running `"docker" "start" "-a" "e7da8dcb0e8dc725a035839afeaa7e827d3de5a0eeddbae03abdec505416f719"` [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Compiling users v0.5.3 [INFO] [stderr] Compiling tilde_plays v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::str` [INFO] [stderr] --> src/bin/manager.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `buttons` is never read [INFO] [stderr] --> src/bin/client.rs:91:13 [INFO] [stderr] | [INFO] [stderr] 91 | let mut buttons = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Start` [INFO] [stderr] --> src/bin/client.rs:19:11 [INFO] [stderr] | [INFO] [stderr] 19 | A, B, Start, Select, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Select` [INFO] [stderr] --> src/bin/client.rs:19:18 [INFO] [stderr] | [INFO] [stderr] 19 | A, B, Start, Select, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Up` [INFO] [stderr] --> src/bin/client.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | Up, Down, Left, Right [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Down` [INFO] [stderr] --> src/bin/client.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | Up, Down, Left, Right [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Left` [INFO] [stderr] --> src/bin/client.rs:20:15 [INFO] [stderr] | [INFO] [stderr] 20 | Up, Down, Left, Right [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Right` [INFO] [stderr] --> src/bin/client.rs:20:21 [INFO] [stderr] | [INFO] [stderr] 20 | Up, Down, Left, Right [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0596]: cannot borrow `client.stream` as mutable, as it is behind a `&` reference [INFO] [stderr] --> src/bin/manager.rs:203:32 [INFO] [stderr] | [INFO] [stderr] 203 | .and_then(|()| client.stream.write_u32::(screen_bytes.len() as u32)) [INFO] [stderr] | ^^^^^^^^^^^^^ cannot borrow as mutable [INFO] [stderr] [INFO] [stderr] error[E0596]: cannot borrow `client.stream` as mutable, as it is behind a `&` reference [INFO] [stderr] --> src/bin/manager.rs:204:32 [INFO] [stderr] | [INFO] [stderr] 204 | .and_then(|()| client.stream.write(&screen_bytes)) { [INFO] [stderr] | ^^^^^^^^^^^^^ cannot borrow as mutable [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/manager.rs:200:17 [INFO] [stderr] | [INFO] [stderr] 200 | for (i, mut client) in clients.lock().unwrap().iter().enumerate() { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0596]: cannot borrow `client.stream` as mutable, as it is behind a `&` reference [INFO] [stderr] --> src/bin/manager.rs:202:19 [INFO] [stderr] | [INFO] [stderr] 200 | for (i, mut client) in clients.lock().unwrap().iter().enumerate() { [INFO] [stderr] | ---------- help: consider changing this to be a mutable reference: `&mut Client` [INFO] [stderr] 201 | //let mut stream = client.stream; [INFO] [stderr] 202 | match client.stream.write_u32::(frame) [INFO] [stderr] | ^^^^^^^^^^^^^ `client` is a `&` reference, so the data it refers to cannot be borrowed as mutable [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0596`. [INFO] [stderr] error: Could not compile `tilde_plays`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "e7da8dcb0e8dc725a035839afeaa7e827d3de5a0eeddbae03abdec505416f719"` [INFO] running `"docker" "rm" "-f" "e7da8dcb0e8dc725a035839afeaa7e827d3de5a0eeddbae03abdec505416f719"` [INFO] [stdout] e7da8dcb0e8dc725a035839afeaa7e827d3de5a0eeddbae03abdec505416f719