[INFO] cloning repository https://github.com/david-a-wheeler/metamath-knife [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/david-a-wheeler/metamath-knife" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-a-wheeler%2Fmetamath-knife", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-a-wheeler%2Fmetamath-knife'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 448b3542ba27dfa9ecc8cf7255117907f468c00f [INFO] checking david-a-wheeler/metamath-knife against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-a-wheeler%2Fmetamath-knife" "/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/david-a-wheeler/metamath-knife on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/david-a-wheeler/metamath-knife [INFO] finished tweaking git repo https://github.com/david-a-wheeler/metamath-knife [INFO] tweaked toml for git repo https://github.com/david-a-wheeler/metamath-knife written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/david-a-wheeler/metamath-knife already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clap v2.5.2 [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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e961a09454f8dfac8e37607fe26246f5bf486f61ff5843789e2426174e4cdb2d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e961a09454f8dfac8e37607fe26246f5bf486f61ff5843789e2426174e4cdb2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e961a09454f8dfac8e37607fe26246f5bf486f61ff5843789e2426174e4cdb2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e961a09454f8dfac8e37607fe26246f5bf486f61ff5843789e2426174e4cdb2d", kill_on_drop: false }` [INFO] [stdout] e961a09454f8dfac8e37607fe26246f5bf486f61ff5843789e2426174e4cdb2d [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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 9e9041dc6e4dd800e5a2e9df125a9db8ee0f8d2fed63964f8769bfd67335f0c3 [INFO] running `Command { std: "docker" "start" "-a" "9e9041dc6e4dd800e5a2e9df125a9db8ee0f8d2fed63964f8769bfd67335f0c3", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.11 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.7 [INFO] [stderr] Checking unicode-width v0.1.3 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking ansi_term v0.7.2 [INFO] [stderr] Checking vec_map v0.6.0 [INFO] [stderr] Checking bitflags v0.5.0 [INFO] [stderr] Checking strsim v0.4.1 [INFO] [stderr] Checking regex-syntax v0.3.3 [INFO] [stderr] Checking fnv v1.0.2 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking filetime v0.1.10 [INFO] [stderr] Checking clap v2.5.2 [INFO] [stderr] Checking aho-corasick v0.5.2 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking thread_local v0.2.6 [INFO] [stderr] Checking regex v0.1.71 [INFO] [stderr] Checking metamath-knife v3.1.0-1 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/export.rs:53:45 [INFO] [stdout] | [INFO] [stdout] 53 | ExportError::Io(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/export.rs:53:45 [INFO] [stdout] | [INFO] [stdout] 53 | ExportError::Io(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/util.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | &vec[from]; // for the bounds check [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/verify.rs:537:17 [INFO] [stdout] | [INFO] [stdout] 537 | / process_hyp(state, [INFO] [stdout] 538 | | &mut datavec, [INFO] [stdout] 539 | | fref, [INFO] [stdout] 540 | | sbase + ix, [INFO] [stdout] 541 | | &fref.hypotheses[slot.unwrap()]); [INFO] [stdout] | |__________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/util.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | &vec[from]; // for the bounds check [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/verify.rs:537:17 [INFO] [stdout] | [INFO] [stdout] 537 | / process_hyp(state, [INFO] [stdout] 538 | | &mut datavec, [INFO] [stdout] 539 | | fref, [INFO] [stdout] 540 | | sbase + ix, [INFO] [stdout] 541 | | &fref.hypotheses[slot.unwrap()]); [INFO] [stdout] | |__________________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [optimized + debuginfo] target(s) in 6.20s [INFO] running `Command { std: "docker" "inspect" "9e9041dc6e4dd800e5a2e9df125a9db8ee0f8d2fed63964f8769bfd67335f0c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e9041dc6e4dd800e5a2e9df125a9db8ee0f8d2fed63964f8769bfd67335f0c3", kill_on_drop: false }` [INFO] [stdout] 9e9041dc6e4dd800e5a2e9df125a9db8ee0f8d2fed63964f8769bfd67335f0c3