[INFO] cloning repository https://github.com/mrtineu/useless-encoding
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrtineu/useless-encoding" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrtineu%2Fuseless-encoding", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrtineu%2Fuseless-encoding'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5571f79f9789fa8796c5d3b6954dff256b39c896
[INFO] checking mrtineu/useless-encoding against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrtineu%2Fuseless-encoding" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mrtineu/useless-encoding
[INFO] finished tweaking git repo https://github.com/mrtineu/useless-encoding
[INFO] tweaked toml for git repo https://github.com/mrtineu/useless-encoding written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mrtineu/useless-encoding on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mrtineu/useless-encoding 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.9.0-alpha.2
[INFO] [stderr]   Downloaded rand_chacha v0.9.0-alpha.2
[INFO] [stderr]   Downloaded rand v0.9.0-alpha.2
[INFO] [stderr]   Downloaded syn v2.0.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee6de3cc14fc03e5f92b1ef39bd51d1e6dfdd2b62525bc2ed4275d86eca3109a
[INFO] running `Command { std: "docker" "start" "-a" "ee6de3cc14fc03e5f92b1ef39bd51d1e6dfdd2b62525bc2ed4275d86eca3109a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee6de3cc14fc03e5f92b1ef39bd51d1e6dfdd2b62525bc2ed4275d86eca3109a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6de3cc14fc03e5f92b1ef39bd51d1e6dfdd2b62525bc2ed4275d86eca3109a", kill_on_drop: false }`
[INFO] [stdout] ee6de3cc14fc03e5f92b1ef39bd51d1e6dfdd2b62525bc2ed4275d86eca3109a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a676031b94df9caa08b6704a3ed0104f2183081a9ea962268ec796b3f7136a2b
[INFO] running `Command { std: "docker" "start" "-a" "a676031b94df9caa08b6704a3ed0104f2183081a9ea962268ec796b3f7136a2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.2
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.2
[INFO] [stderr]     Checking rand v0.9.0-alpha.2
[INFO] [stderr]     Checking MostUselessEncoderRUST v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `chunks` in this scope
[INFO] [stdout]   --> src/decoding.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     chunks
[INFO] [stdout]    |     ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `chunks` in this scope
[INFO] [stdout]   --> src/decoding.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     chunks
[INFO] [stdout]    |     ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/decoding.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut start = Instant::now();
[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/decoding.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/decoding.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/decoding.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut start = Instant::now();
[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/decoding.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/decoding.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut start = Instant::now();
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut start = Instant::now();
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MostUselessEncoderRUST` (bin "MostUselessEncoderRUST" test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `MostUselessEncoderRUST` (bin "MostUselessEncoderRUST") due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a676031b94df9caa08b6704a3ed0104f2183081a9ea962268ec796b3f7136a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a676031b94df9caa08b6704a3ed0104f2183081a9ea962268ec796b3f7136a2b", kill_on_drop: false }`
[INFO] [stdout] a676031b94df9caa08b6704a3ed0104f2183081a9ea962268ec796b3f7136a2b
