[INFO] cloning repository https://github.com/KiwiDev808/cs50-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KiwiDev808/cs50-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKiwiDev808%2Fcs50-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKiwiDev808%2Fcs50-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcb37560551b7ab386e63af3b9eba3311b55e688
[INFO] checking KiwiDev808/cs50-rust/fcb37560551b7ab386e63af3b9eba3311b55e688 against master#9d28fe39763974a96d61232e96ac856735e4cdd6 for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKiwiDev808%2Fcs50-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KiwiDev808/cs50-rust on toolchain 9d28fe39763974a96d61232e96ac856735e4cdd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KiwiDev808/cs50-rust
[INFO] finished tweaking git repo https://github.com/KiwiDev808/cs50-rust
[INFO] tweaked toml for git repo https://github.com/KiwiDev808/cs50-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KiwiDev808/cs50-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" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 147b4ca083d893dac0907136b3508b5238e26a688255a8c80d734d37472aedca
[INFO] running `Command { std: "docker" "start" "-a" "147b4ca083d893dac0907136b3508b5238e26a688255a8c80d734d37472aedca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "147b4ca083d893dac0907136b3508b5238e26a688255a8c80d734d37472aedca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "147b4ca083d893dac0907136b3508b5238e26a688255a8c80d734d37472aedca", kill_on_drop: false }`
[INFO] [stdout] 147b4ca083d893dac0907136b3508b5238e26a688255a8c80d734d37472aedca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 956d6e586ed1dac801394ed247168f436e96d76acdecbed009b580cc29297ed2
[INFO] running `Command { std: "docker" "start" "-a" "956d6e586ed1dac801394ed247168f436e96d76acdecbed009b580cc29297ed2", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking volume-rs v0.1.0 (/opt/rustwide/workdir/week4/volume-rs)
[INFO] [stderr]     Checking recover-rs v0.1.0 (/opt/rustwide/workdir/week4/recover-rs)
[INFO] [stderr]     Checking scrabble_rs v0.1.0 (/opt/rustwide/workdir/week2/scrabble_rs)
[INFO] [stderr]     Checking sort-rs v0.1.0 (/opt/rustwide/workdir/week3/sort-rs)
[INFO] [stderr]     Checking credit v0.1.0 (/opt/rustwide/workdir/week1/credit)
[INFO] [stderr]     Checking tideman-rs v0.1.0 (/opt/rustwide/workdir/week3/tideman-rs)
[INFO] [stderr]     Checking mario-more v0.1.0 (/opt/rustwide/workdir/week1/mario-more)
[INFO] [stderr]     Checking substitution_rs v0.1.0 (/opt/rustwide/workdir/week2/substitution_rs)
[INFO] [stderr]     Checking reverse-rs v0.1.0 (/opt/rustwide/workdir/week4/reverse-rs)
[INFO] [stdout] warning: field `num_channels` is never read
[INFO] [stdout]  --> week4/volume-rs/src/extractor.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct WavData {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub riff_header: String,
[INFO] [stdout] 8 |     pub num_channels: u16,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_8_bit_sample` is never used
[INFO] [stdout]   --> week4/reverse-rs/src/extractor.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl WavData {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 15 |     pub fn is_8_bit_sample(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_8_bit_sample` is never used
[INFO] [stdout]   --> week4/reverse-rs/src/extractor.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl WavData {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 15 |     pub fn is_8_bit_sample(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num_channels` is never read
[INFO] [stdout]  --> week4/volume-rs/src/extractor.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct WavData {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub riff_header: String,
[INFO] [stdout] 8 |     pub num_channels: u16,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking filter-more-rs v0.1.0 (/opt/rustwide/workdir/week4/filter-more-rs)
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking wordle-rs v0.1.0 (/opt/rustwide/workdir/week2/wordle-rs)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "956d6e586ed1dac801394ed247168f436e96d76acdecbed009b580cc29297ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956d6e586ed1dac801394ed247168f436e96d76acdecbed009b580cc29297ed2", kill_on_drop: false }`
[INFO] [stdout] 956d6e586ed1dac801394ed247168f436e96d76acdecbed009b580cc29297ed2