[INFO] fetching crate tiny-varint 0.2.0...
[INFO] checking tiny-varint-0.2.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate tiny-varint 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tiny-varint 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tiny-varint 0.2.0
[INFO] tweaked toml for crates.io crate tiny-varint 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tiny-varint 0.2.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tiny-varint 0.2.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zigzag-rs v0.2.1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c737c6e884e1f1303eb774d9a57a97005c4dc093b80950fc6ee85b948e579e1
[INFO] running `Command { std: "docker" "start" "-a" "3c737c6e884e1f1303eb774d9a57a97005c4dc093b80950fc6ee85b948e579e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c737c6e884e1f1303eb774d9a57a97005c4dc093b80950fc6ee85b948e579e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c737c6e884e1f1303eb774d9a57a97005c4dc093b80950fc6ee85b948e579e1", kill_on_drop: false }`
[INFO] [stdout] 3c737c6e884e1f1303eb774d9a57a97005c4dc093b80950fc6ee85b948e579e1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8030eabd900ef7d7e003090958d225b37f3e826b72d93bd67026296cf5d31ea8
[INFO] running `Command { std: "docker" "start" "-a" "8030eabd900ef7d7e003090958d225b37f3e826b72d93bd67026296cf5d31ea8", kill_on_drop: false }`
[INFO] [stderr]     Checking zigzag-rs v0.2.1
[INFO] [stderr]     Checking tiny-varint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/value.rs:399:17
[INFO] [stdout]     |
[INFO] [stdout] 399 |             let mut dummy_buffer = [type_id, 0, 0, 0, 0]; // Just need the type byte
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "8030eabd900ef7d7e003090958d225b37f3e826b72d93bd67026296cf5d31ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8030eabd900ef7d7e003090958d225b37f3e826b72d93bd67026296cf5d31ea8", kill_on_drop: false }`
[INFO] [stdout] 8030eabd900ef7d7e003090958d225b37f3e826b72d93bd67026296cf5d31ea8