[INFO] updating cached repository https://github.com/Sanqui/tilde_plays
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3f2eb492b3787151fbe9f8ebd2b44fdb64cbd4f9
[INFO] testing Sanqui/tilde_plays against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FSanqui%2Ftilde_plays" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sanqui/tilde_plays on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Sanqui/tilde_plays
[INFO] finished tweaking git repo https://github.com/Sanqui/tilde_plays
[INFO] tweaked toml for git repo https://github.com/Sanqui/tilde_plays written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Sanqui/tilde_plays already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 0d00c5b32f5a73d605973aeb169100fb5f3f6ffb30eeee4ec0555ce733a11473
[INFO] running `"docker" "start" "-a" "0d00c5b32f5a73d605973aeb169100fb5f3f6ffb30eeee4ec0555ce733a11473"`
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling users v0.5.3
[INFO] [stderr]    Compiling tilde_plays v0.1.0 (/opt/rustwide/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] 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::<BigEndian>(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::<BigEndian>(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] 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: build failed
[INFO] running `"docker" "inspect" "0d00c5b32f5a73d605973aeb169100fb5f3f6ffb30eeee4ec0555ce733a11473"`
[INFO] running `"docker" "rm" "-f" "0d00c5b32f5a73d605973aeb169100fb5f3f6ffb30eeee4ec0555ce733a11473"`
[INFO] [stdout] 0d00c5b32f5a73d605973aeb169100fb5f3f6ffb30eeee4ec0555ce733a11473