[INFO] cloning repository https://github.com/kmayerpatel/comp590videocompression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmayerpatel/comp590videocompression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmayerpatel%2Fcomp590videocompression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmayerpatel%2Fcomp590videocompression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8f6f8ec9cb9566a41f9dce813f6cc667131f252
[INFO] testing kmayerpatel/comp590videocompression against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmayerpatel%2Fcomp590videocompression" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kmayerpatel/comp590videocompression
[INFO] finished tweaking git repo https://github.com/kmayerpatel/comp590videocompression
[INFO] tweaked toml for git repo https://github.com/kmayerpatel/comp590videocompression written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kmayerpatel/comp590videocompression on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kmayerpatel/comp590videocompression 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded workspace_root v0.2.0
[INFO] [stderr]   Downloaded assert_float_eq v1.1.4
[INFO] [stderr]   Downloaded bitbit v0.2.0
[INFO] [stderr]   Downloaded get_dir v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0312904329c01a18d4e5b8b7d576dcb54baf244c24324adc35481b4f4b66530
[INFO] running `Command { std: "docker" "start" "-a" "d0312904329c01a18d4e5b8b7d576dcb54baf244c24324adc35481b4f4b66530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0312904329c01a18d4e5b8b7d576dcb54baf244c24324adc35481b4f4b66530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0312904329c01a18d4e5b8b7d576dcb54baf244c24324adc35481b4f4b66530", kill_on_drop: false }`
[INFO] [stdout] d0312904329c01a18d4e5b8b7d576dcb54baf244c24324adc35481b4f4b66530
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e5140cd489ef1c367548f5e30283460cf93498274ba2da7b8208c85e08a302b
[INFO] running `Command { std: "docker" "start" "-a" "4e5140cd489ef1c367548f5e30283460cf93498274ba2da7b8208c85e08a302b", kill_on_drop: false }`
[INFO] [stderr]    Compiling get_dir v0.5.0
[INFO] [stderr]    Compiling assert_float_eq v1.1.4
[INFO] [stderr]    Compiling bitbit v0.2.0
[INFO] [stderr]    Compiling workspace_root v0.2.0
[INFO] [stderr]    Compiling toy-ac v0.1.0 (/opt/rustwide/workdir/toy-ac)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> toy-ac/src/symbol_model.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let int_start = (sum as f64 / self.total as f64);
[INFO] [stdout]    |                             ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -             let int_start = (sum as f64 / self.total as f64);
[INFO] [stdout] 79 +             let int_start = sum as f64 / self.total as f64 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> toy-ac/src/symbol_model.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `assert_float_eq::assert_f64_near`
[INFO] [stdout]   --> toy-ac/src/symbol_model.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     use assert_float_eq::assert_f64_near;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sob_mask` is never used
[INFO] [stdout]   --> toy-ac/src/range.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Range {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn sob_mask(&self) -> u64 {0x1 << (self.bw-2)}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> toy-ac/src/bin/shakes_decompress.rs:2:37
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read, Write};
[INFO] [stdout]   |                                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> toy-ac/src/bin/shakes_decompress.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `sm` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> toy-ac/src/bin/shakes_decompress.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let next_byte = dec.decode(&sm, &mut br);
[INFO] [stdout]    |                                    --- immutable borrow occurs here
[INFO] [stdout] 34 |         sm.incr_count(next_byte);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 35 |         writer.write(&[*next_byte]);
[INFO] [stdout]    |                        ---------- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-ac` (bin "shakes_decompress") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> toy-ac/src/bin/shakes_compress.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     bw.pad_to_byte();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let _ = bw.pad_to_byte();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> toy-ac/src/bin/shakes_compress.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     buf_writer.flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let _ = buf_writer.flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e5140cd489ef1c367548f5e30283460cf93498274ba2da7b8208c85e08a302b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e5140cd489ef1c367548f5e30283460cf93498274ba2da7b8208c85e08a302b", kill_on_drop: false }`
[INFO] [stdout] 4e5140cd489ef1c367548f5e30283460cf93498274ba2da7b8208c85e08a302b