[INFO] crate section_testing 0.0.4 is already in cache
[INFO] checking section_testing-0.0.4 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate section_testing 0.0.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate section_testing 0.0.4 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate section_testing 0.0.4
[INFO] finished tweaking crates.io crate section_testing 0.0.4
[INFO] tweaked toml for crates.io crate section_testing 0.0.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 425cecdb02704e9712b3232d6c092d43aa7a33a82a9889f2791c1e1526d0f977
[INFO] running `Command { std: "docker" "start" "-a" "425cecdb02704e9712b3232d6c092d43aa7a33a82a9889f2791c1e1526d0f977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "425cecdb02704e9712b3232d6c092d43aa7a33a82a9889f2791c1e1526d0f977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425cecdb02704e9712b3232d6c092d43aa7a33a82a9889f2791c1e1526d0f977", kill_on_drop: false }`
[INFO] [stdout] 425cecdb02704e9712b3232d6c092d43aa7a33a82a9889f2791c1e1526d0f977
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef9fb0357fc919e8c7b4e0806896d0b94bd6675f9bcd15d7d2545031a80fa42d
[INFO] running `Command { std: "docker" "start" "-a" "ef9fb0357fc919e8c7b4e0806896d0b94bd6675f9bcd15d7d2545031a80fa42d", kill_on_drop: false }`
[INFO] [stderr]     Checking section_testing v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 155 |           let mut count = r.current.values().filter(|x| x.should_enter).count();
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 155 |           let mut count = r.current.values().filter(|x| x.should_enter).count();
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "ef9fb0357fc919e8c7b4e0806896d0b94bd6675f9bcd15d7d2545031a80fa42d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9fb0357fc919e8c7b4e0806896d0b94bd6675f9bcd15d7d2545031a80fa42d", kill_on_drop: false }`
[INFO] [stdout] ef9fb0357fc919e8c7b4e0806896d0b94bd6675f9bcd15d7d2545031a80fa42d