[INFO] cloning repository https://github.com/josewandersonsantos/beecrowd-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/josewandersonsantos/beecrowd-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosewandersonsantos%2Fbeecrowd-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosewandersonsantos%2Fbeecrowd-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 672d66bb42e9fda2849140041b0a50aa97c3b35f
[INFO] testing josewandersonsantos/beecrowd-rust against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosewandersonsantos%2Fbeecrowd-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/josewandersonsantos/beecrowd-rust
[INFO] finished tweaking git repo https://github.com/josewandersonsantos/beecrowd-rust
[INFO] tweaked toml for git repo https://github.com/josewandersonsantos/beecrowd-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/josewandersonsantos/beecrowd-rust on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/josewandersonsantos/beecrowd-rust 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8
[INFO] running `Command { std: "docker" "start" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/1093-vampiors.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let (mut ev1, mut ev2, at, d) = 
[INFO] [stdout]   |              ----^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/1093-vampiors.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let (mut ev1, mut ev2, at, d) = 
[INFO] [stdout]   |                       ----^^^
[INFO] [stdout]   |                       |
[INFO] [stdout]   |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> src/bin/1149-sum_integer.rs:7:10
[INFO] [stdout]    |
[INFO] [stdout]  7 |     let (mut a, mut n, mut sum):(i32, i32, i64) = (0, 0, 0);
[INFO] [stdout]    |          ^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 12 |     a = numbers[0];
[INFO] [stdout]    |     -------------- `a` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]  --> src/bin/1262-multiply_read.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     while true 
[INFO] [stdout]   |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/1066-pair_odd_positive_negative.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut lines = stdin.lock().lines().map(|l| l.unwrap());
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/1262-multiply_read.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |         if Ok(line) {break;}
[INFO] [stdout]    |            ^^^^^^^^ expected `bool`, found `Result<String, _>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `bool`
[INFO] [stdout]               found enum `Result<String, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `problems` (bin "1262-multiply_read") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8", kill_on_drop: false }`
[INFO] [stdout] 1d0b0cd9984ce26763c56c30fcb04d915ad9b439197133e8afd00f0ce1a40ef8
