[INFO] cloning repository https://github.com/alvinometric/rustidoo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alvinometric/rustidoo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvinometric%2Frustidoo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvinometric%2Frustidoo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b594ad07d77eb84e696bf7a7eb8ed7eb310da6e
[INFO] checking alvinometric/rustidoo against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvinometric%2Frustidoo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alvinometric/rustidoo
[INFO] finished tweaking git repo https://github.com/alvinometric/rustidoo
[INFO] tweaked toml for git repo https://github.com/alvinometric/rustidoo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alvinometric/rustidoo on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alvinometric/rustidoo 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab37e2db6ab6661808e31280178c05a8797d2eca0305d5be2a4320732c7d9ff0
[INFO] running `Command { std: "docker" "start" "-a" "ab37e2db6ab6661808e31280178c05a8797d2eca0305d5be2a4320732c7d9ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab37e2db6ab6661808e31280178c05a8797d2eca0305d5be2a4320732c7d9ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab37e2db6ab6661808e31280178c05a8797d2eca0305d5be2a4320732c7d9ff0", kill_on_drop: false }`
[INFO] [stdout] ab37e2db6ab6661808e31280178c05a8797d2eca0305d5be2a4320732c7d9ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5db44a9defe8fae93b9bc273c629dfab03dbc2c38a3dac13e53e2ca972611fa8
[INFO] running `Command { std: "docker" "start" "-a" "5db44a9defe8fae93b9bc273c629dfab03dbc2c38a3dac13e53e2ca972611fa8", kill_on_drop: false }`
[INFO] [stderr] warning: rustidoo v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-watch` which is missing a lib target
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking num2words v0.4.1
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.3
[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 num v0.4.0
[INFO] [stderr]     Checking fraction v0.13.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rustidoo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> examples/291/main.rs:22:44
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn fraction_math(a: &str, operation: &str, b: &str) -> String {
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_format`
[INFO] [stdout]   --> examples/292/main.rs:18:35
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn convert_color(in_format: &str, out_format: &str, color: &str) -> String {
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_format`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "5db44a9defe8fae93b9bc273c629dfab03dbc2c38a3dac13e53e2ca972611fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db44a9defe8fae93b9bc273c629dfab03dbc2c38a3dac13e53e2ca972611fa8", kill_on_drop: false }`
[INFO] [stdout] 5db44a9defe8fae93b9bc273c629dfab03dbc2c38a3dac13e53e2ca972611fa8