[INFO] cloning repository https://github.com/RoryNickolls/rustav
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RoryNickolls/rustav" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoryNickolls%2Frustav", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoryNickolls%2Frustav'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 352fdf35b4985d2587266356ef867203ac002d0e
[INFO] checking RoryNickolls/rustav against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoryNickolls%2Frustav" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RoryNickolls/rustav on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RoryNickolls/rustav
[INFO] finished tweaking git repo https://github.com/RoryNickolls/rustav
[INFO] tweaked toml for git repo https://github.com/RoryNickolls/rustav written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/RoryNickolls/rustav already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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 md5 v0.3.7
[INFO] [stderr]   Downloaded same-file v1.0.2
[INFO] [stderr]   Downloaded walkdir v2.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74a3b20e7aba3abf15e58478437fd890d868a08aaf52df9387f6055f4cb23ac1
[INFO] running `Command { std: "docker" "start" "-a" "74a3b20e7aba3abf15e58478437fd890d868a08aaf52df9387f6055f4cb23ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74a3b20e7aba3abf15e58478437fd890d868a08aaf52df9387f6055f4cb23ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a3b20e7aba3abf15e58478437fd890d868a08aaf52df9387f6055f4cb23ac1", kill_on_drop: false }`
[INFO] [stdout] 74a3b20e7aba3abf15e58478437fd890d868a08aaf52df9387f6055f4cb23ac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a375041a32ea9d53a8da0192c7f29457c660a56dcc2379e956fe3356ea42a58
[INFO] running `Command { std: "docker" "start" "-a" "1a375041a32ea9d53a8da0192c7f29457c660a56dcc2379e956fe3356ea42a58", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking boyer_moore v0.1.0 (/opt/rustwide/workdir/lib/boyer_moore)
[INFO] [stderr]     Checking md5 v0.3.7
[INFO] [stderr]     Checking walkdir v2.2.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]     Checking antivirus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/virus_database.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let mut line_contents = line.to_string();
[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/virus_database.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let mut line_contents = line.to_string();
[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 1.59s
[INFO] running `Command { std: "docker" "inspect" "1a375041a32ea9d53a8da0192c7f29457c660a56dcc2379e956fe3356ea42a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a375041a32ea9d53a8da0192c7f29457c660a56dcc2379e956fe3356ea42a58", kill_on_drop: false }`
[INFO] [stdout] 1a375041a32ea9d53a8da0192c7f29457c660a56dcc2379e956fe3356ea42a58