[INFO] fetching crate mangle-vm 0.5.0...
[INFO] checking mangle-vm-0.5.0 against master#49b6ac01d6f4c3da812039ae846407a20961aa4c for pr-154887
[INFO] extracting crate mangle-vm 0.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mangle-vm 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mangle-vm 0.5.0
[INFO] tweaked toml for crates.io crate mangle-vm 0.5.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mangle-vm 0.5.0 on toolchain 49b6ac01d6f4c3da812039ae846407a20961aa4c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mangle-vm 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cda84421bba1495b6ed6ee3422243d0e8d1d755ff4a1dc54a4c4a2fb04c4aa3
[INFO] running `Command { std: "docker" "start" "-a" "5cda84421bba1495b6ed6ee3422243d0e8d1d755ff4a1dc54a4c4a2fb04c4aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cda84421bba1495b6ed6ee3422243d0e8d1d755ff4a1dc54a4c4a2fb04c4aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cda84421bba1495b6ed6ee3422243d0e8d1d755ff4a1dc54a4c4a2fb04c4aa3", kill_on_drop: false }`
[INFO] [stdout] 5cda84421bba1495b6ed6ee3422243d0e8d1d755ff4a1dc54a4c4a2fb04c4aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2e9e8f77c0b1ea2a23eec3bffa536f469ec8c870cfbe19870aa9f2ff802f809
[INFO] running `Command { std: "docker" "start" "-a" "f2e9e8f77c0b1ea2a23eec3bffa536f469ec8c870cfbe19870aa9f2ff802f809", kill_on_drop: false }`
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[INFO] [stderr]     Checking mangle-vm v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `strings` and `names` are never read
[INFO] [stdout]   --> src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct HostWrapper<H> {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 29 |     host: H,
[INFO] [stdout] 30 |     strings: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 31 |     names: Vec<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `strings` and `names` are never read
[INFO] [stdout]   --> src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct HostWrapper<H> {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 29 |     host: H,
[INFO] [stdout] 30 |     strings: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 31 |     names: Vec<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_string_fact` is never used
[INFO] [stdout]    --> src/lib.rs:661:12
[INFO] [stdout]     |
[INFO] [stdout] 610 |     impl MemHost {
[INFO] [stdout]     |     ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 661 |         fn add_string_fact(&mut self, rel: &str, args: &[&str]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `strings` and `names` are never read
[INFO] [stdout]   --> tests/reachability.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct MemHost {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     strings: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 46 |     names: Vec<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "f2e9e8f77c0b1ea2a23eec3bffa536f469ec8c870cfbe19870aa9f2ff802f809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2e9e8f77c0b1ea2a23eec3bffa536f469ec8c870cfbe19870aa9f2ff802f809", kill_on_drop: false }`
[INFO] [stdout] f2e9e8f77c0b1ea2a23eec3bffa536f469ec8c870cfbe19870aa9f2ff802f809