[INFO] fetching crate to-mut 0.1.0...
[INFO] checking to-mut-0.1.0 against master#9b81629631b382fd49ee3a20ac47797b1467e52d for pr-146095-1
[INFO] extracting crate to-mut 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate to-mut 0.1.0
[INFO] finished tweaking crates.io crate to-mut 0.1.0
[INFO] tweaked toml for crates.io crate to-mut 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate to-mut 0.1.0 on toolchain 9b81629631b382fd49ee3a20ac47797b1467e52d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded to-mut-proc-macro v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acbab72d3fbb03f4eeb972d3127e3074a1efe59628dccefc7018ee3b7dd87ed8
[INFO] running `Command { std: "docker" "start" "-a" "acbab72d3fbb03f4eeb972d3127e3074a1efe59628dccefc7018ee3b7dd87ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acbab72d3fbb03f4eeb972d3127e3074a1efe59628dccefc7018ee3b7dd87ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acbab72d3fbb03f4eeb972d3127e3074a1efe59628dccefc7018ee3b7dd87ed8", kill_on_drop: false }`
[INFO] [stdout] acbab72d3fbb03f4eeb972d3127e3074a1efe59628dccefc7018ee3b7dd87ed8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 971eba9f94940acda7d04ac82a8c4c364873f13598bfc98e5acaa8d19a69f855
[INFO] running `Command { std: "docker" "start" "-a" "971eba9f94940acda7d04ac82a8c4c364873f13598bfc98e5acaa8d19a69f855", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling to-mut-proc-macro v0.1.0
[INFO] [stderr]     Checking to-mut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/tests.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut mut_person = person.to_mut();
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "971eba9f94940acda7d04ac82a8c4c364873f13598bfc98e5acaa8d19a69f855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "971eba9f94940acda7d04ac82a8c4c364873f13598bfc98e5acaa8d19a69f855", kill_on_drop: false }`
[INFO] [stdout] 971eba9f94940acda7d04ac82a8c4c364873f13598bfc98e5acaa8d19a69f855