[INFO] fetching crate fuzzmutator 0.2.1...
[INFO] checking fuzzmutator-0.2.1 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate fuzzmutator 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate fuzzmutator 0.2.1 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzmutator 0.2.1
[INFO] finished tweaking crates.io crate fuzzmutator 0.2.1
[INFO] tweaked toml for crates.io crate fuzzmutator 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d9d18a6b6bd6a5223eaacac15eb651c014b5735ee8808daa8803bbc53d74600
[INFO] running `Command { std: "docker" "start" "-a" "5d9d18a6b6bd6a5223eaacac15eb651c014b5735ee8808daa8803bbc53d74600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d9d18a6b6bd6a5223eaacac15eb651c014b5735ee8808daa8803bbc53d74600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d9d18a6b6bd6a5223eaacac15eb651c014b5735ee8808daa8803bbc53d74600", kill_on_drop: false }`
[INFO] [stdout] 5d9d18a6b6bd6a5223eaacac15eb651c014b5735ee8808daa8803bbc53d74600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1cea889dd25c313c46a12632e031a97eda3b6f0839177a7c2970b58eaa5f64e
[INFO] running `Command { std: "docker" "start" "-a" "a1cea889dd25c313c46a12632e031a97eda3b6f0839177a7c2970b58eaa5f64e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.153
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking fuzzmutator v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `mutation_grade` found for struct `MutatorEngine` in the current scope
[INFO] [stdout]    --> src/mutator.rs:389:19
[INFO] [stdout]     |
[INFO] [stdout] 28  | pub struct MutatorEngine {
[INFO] [stdout]     | ------------------------ method `mutation_grade` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 389 |         mutatoren.mutation_grade(0.199);
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ method not found in `MutatorEngine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fuzzmutator` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a1cea889dd25c313c46a12632e031a97eda3b6f0839177a7c2970b58eaa5f64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1cea889dd25c313c46a12632e031a97eda3b6f0839177a7c2970b58eaa5f64e", kill_on_drop: false }`
[INFO] [stdout] a1cea889dd25c313c46a12632e031a97eda3b6f0839177a7c2970b58eaa5f64e
