[INFO] cloning repository https://github.com/theswiftfox/mpbenchparser_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theswiftfox/mpbenchparser_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheswiftfox%2Fmpbenchparser_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheswiftfox%2Fmpbenchparser_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 617c84b216f7699063eb30ccd123b47bcf5c9a29
[INFO] checking theswiftfox/mpbenchparser_rust against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheswiftfox%2Fmpbenchparser_rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theswiftfox/mpbenchparser_rust on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/theswiftfox/mpbenchparser_rust
[INFO] finished tweaking git repo https://github.com/theswiftfox/mpbenchparser_rust
[INFO] tweaked toml for git repo https://github.com/theswiftfox/mpbenchparser_rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/theswiftfox/mpbenchparser_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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] 36ae913f2e855575e72543044dd76da29cefb89a4bcbb94f0982a93632aacb5c
[INFO] running `Command { std: "docker" "start" "-a" "36ae913f2e855575e72543044dd76da29cefb89a4bcbb94f0982a93632aacb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36ae913f2e855575e72543044dd76da29cefb89a4bcbb94f0982a93632aacb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ae913f2e855575e72543044dd76da29cefb89a4bcbb94f0982a93632aacb5c", kill_on_drop: false }`
[INFO] [stdout] 36ae913f2e855575e72543044dd76da29cefb89a4bcbb94f0982a93632aacb5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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] 3b4d3134f837bf2d75b561250306eaa4a40e134f13986cca59000d6194c3adf7
[INFO] running `Command { std: "docker" "start" "-a" "3b4d3134f837bf2d75b561250306eaa4a40e134f13986cca59000d6194c3adf7", kill_on_drop: false }`
[INFO] [stderr]     Checking combine_results v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:57:53
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let file = File::create(&filename).unwrap();;
[INFO] [stdout]    |                                                     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if try!(fs::metadata(foldername)).is_dir() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 |         for entry in try!(fs::read_dir(foldername)) {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let entry = try!(entry);
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |             if try!(fs::metadata(entry.path())).is_dir() {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:57:53
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let file = File::create(&filename).unwrap();;
[INFO] [stdout]    |                                                     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if try!(fs::metadata(foldername)).is_dir() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 |         for entry in try!(fs::read_dir(foldername)) {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let entry = try!(entry);
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |             if try!(fs::metadata(entry.path())).is_dir() {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "3b4d3134f837bf2d75b561250306eaa4a40e134f13986cca59000d6194c3adf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4d3134f837bf2d75b561250306eaa4a40e134f13986cca59000d6194c3adf7", kill_on_drop: false }`
[INFO] [stdout] 3b4d3134f837bf2d75b561250306eaa4a40e134f13986cca59000d6194c3adf7