[INFO] fetching crate syntex_fmt_macros 0.5.0...
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] crate syntex_fmt_macros 0.5.0 is already in cache
[INFO] checking syntex_fmt_macros-0.5.0 against try#7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e for pr-99880
[INFO] extracting crate syntex_fmt_macros 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate syntex_fmt_macros 0.5.0 on toolchain 7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntex_fmt_macros 0.5.0
[INFO] finished tweaking crates.io crate syntex_fmt_macros 0.5.0
[INFO] tweaked toml for crates.io crate syntex_fmt_macros 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e905382c744e40b49e0afef0b64dadd9a609353eff022f57b47842e17553e9ba
[INFO] running `Command { std: "docker" "start" "-a" "e905382c744e40b49e0afef0b64dadd9a609353eff022f57b47842e17553e9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e905382c744e40b49e0afef0b64dadd9a609353eff022f57b47842e17553e9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e905382c744e40b49e0afef0b64dadd9a609353eff022f57b47842e17553e9ba", kill_on_drop: false }`
[INFO] [stdout] e905382c744e40b49e0afef0b64dadd9a609353eff022f57b47842e17553e9ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1aa739599e4928476641f1b92675395a6c8a06aeb3c894c6581791da4ae80ce2
[INFO] running `Command { std: "docker" "start" "-a" "1aa739599e4928476641f1b92675395a6c8a06aeb3c894c6581791da4ae80ce2", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]     Checking syntex_fmt_macros v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:397:13
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let mut end;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:397:13
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let mut end;
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "1aa739599e4928476641f1b92675395a6c8a06aeb3c894c6581791da4ae80ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa739599e4928476641f1b92675395a6c8a06aeb3c894c6581791da4ae80ce2", kill_on_drop: false }`
[INFO] [stdout] 1aa739599e4928476641f1b92675395a6c8a06aeb3c894c6581791da4ae80ce2