[INFO] cloning repository https://github.com/sevro/koncord
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sevro/koncord" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevro%2Fkoncord", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevro%2Fkoncord'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1857981c51ebc5d957d08d9ddf9f2dc20c306c67
[INFO] checking sevro/koncord against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevro%2Fkoncord" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sevro/koncord
[INFO] finished tweaking git repo https://github.com/sevro/koncord
[INFO] tweaked toml for git repo https://github.com/sevro/koncord written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sevro/koncord on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sevro/koncord 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 819f66b1ca606bb69397712224e6c91075be4075cb7a94a02418d47145eb8cd0
[INFO] running `Command { std: "docker" "start" "-a" "819f66b1ca606bb69397712224e6c91075be4075cb7a94a02418d47145eb8cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "819f66b1ca606bb69397712224e6c91075be4075cb7a94a02418d47145eb8cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819f66b1ca606bb69397712224e6c91075be4075cb7a94a02418d47145eb8cd0", kill_on_drop: false }`
[INFO] [stdout] 819f66b1ca606bb69397712224e6c91075be4075cb7a94a02418d47145eb8cd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd2e01b0b3658c40f8e564f7e433961840e93387bfdfc634100881eb660985e7
[INFO] running `Command { std: "docker" "start" "-a" "fd2e01b0b3658c40f8e564f7e433961840e93387bfdfc634100881eb660985e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling rust_decimal v1.26.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking serde v1.0.144
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking koncord v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]  --> src/main.rs:9:68
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut clients: HashMap<u16, Client> = HashMap::with_capacity(usize::try_from(u16::MAX)?);
[INFO] [stdout]   |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]  --> src/main.rs:9:68
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut clients: HashMap<u16, Client> = HashMap::with_capacity(usize::try_from(u16::MAX)?);
[INFO] [stdout]   |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `koncord` (bin "koncord") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> tests/toys.rs:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> tests/toys.rs:78:32
[INFO] [stdout]    |
[INFO] [stdout] 78 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> tests/toys.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> tests/toys.rs:144:32
[INFO] [stdout]     |
[INFO] [stdout] 144 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> tests/toys.rs:178:32
[INFO] [stdout]     |
[INFO] [stdout] 178 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> tests/tx_stress.rs:15:32
[INFO] [stdout]    |
[INFO] [stdout] 15 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `koncord` (test "tx_stress") due to 1 previous error
[INFO] [stderr] error: could not compile `koncord` (test "toys") due to 5 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> tests/complex.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> tests/clients_max.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 |         HashMap::with_capacity(usize::try_from(u16::MAX).unwrap());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `koncord` (test "complex") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]  --> src/main.rs:9:68
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut clients: HashMap<u16, Client> = HashMap::with_capacity(usize::try_from(u16::MAX)?);
[INFO] [stdout]   |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `koncord` (test "clients_max") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]  --> src/main.rs:9:68
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut clients: HashMap<u16, Client> = HashMap::with_capacity(usize::try_from(u16::MAX)?);
[INFO] [stdout]   |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `koncord` (bin "koncord" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fd2e01b0b3658c40f8e564f7e433961840e93387bfdfc634100881eb660985e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2e01b0b3658c40f8e564f7e433961840e93387bfdfc634100881eb660985e7", kill_on_drop: false }`
[INFO] [stdout] fd2e01b0b3658c40f8e564f7e433961840e93387bfdfc634100881eb660985e7