[INFO] fetching crate rustc-semver 1.1.0...
[INFO] testing rustc-semver-1.1.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate rustc-semver 1.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate rustc-semver 1.1.0
[INFO] finished tweaking crates.io crate rustc-semver 1.1.0
[INFO] tweaked toml for crates.io crate rustc-semver 1.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustc-semver 1.1.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b840c1e4f667a4021d26bd8814c16e0bab341ae79f55843f35b3e9d1abc44e83
[INFO] running `Command { std: "docker" "start" "-a" "b840c1e4f667a4021d26bd8814c16e0bab341ae79f55843f35b3e9d1abc44e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b840c1e4f667a4021d26bd8814c16e0bab341ae79f55843f35b3e9d1abc44e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b840c1e4f667a4021d26bd8814c16e0bab341ae79f55843f35b3e9d1abc44e83", kill_on_drop: false }`
[INFO] [stdout] b840c1e4f667a4021d26bd8814c16e0bab341ae79f55843f35b3e9d1abc44e83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b0dcf5a6c8ec5931df6ba8454593072c7ca8ccb9a36c1f52cc3391c58cf603e
[INFO] running `Command { std: "docker" "start" "-a" "8b0dcf5a6c8ec5931df6ba8454593072c7ca8ccb9a36c1f52cc3391c58cf603e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-semver v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "8b0dcf5a6c8ec5931df6ba8454593072c7ca8ccb9a36c1f52cc3391c58cf603e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0dcf5a6c8ec5931df6ba8454593072c7ca8ccb9a36c1f52cc3391c58cf603e", kill_on_drop: false }`
[INFO] [stdout] 8b0dcf5a6c8ec5931df6ba8454593072c7ca8ccb9a36c1f52cc3391c58cf603e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b01e49afd7aeccbc4e6cd1cb17409645af50819f2dfb710579d91f8dbd14dd
[INFO] running `Command { std: "docker" "start" "-a" "d7b01e49afd7aeccbc4e6cd1cb17409645af50819f2dfb710579d91f8dbd14dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-semver v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/lib.rs:655:9
[INFO] [stdout]     |
[INFO] [stdout] 655 |         OmittedParts::from(0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 655 |         let _ = OmittedParts::from(0);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/lib.rs:663:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |         OmittedParts::from(4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 663 |         let _ = OmittedParts::from(4);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "d7b01e49afd7aeccbc4e6cd1cb17409645af50819f2dfb710579d91f8dbd14dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b01e49afd7aeccbc4e6cd1cb17409645af50819f2dfb710579d91f8dbd14dd", kill_on_drop: false }`
[INFO] [stdout] d7b01e49afd7aeccbc4e6cd1cb17409645af50819f2dfb710579d91f8dbd14dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 98fbfd92598dea13ecc0b0ab18d57a3b0f23914861123cc9f11319c94515ddbb
[INFO] running `Command { std: "docker" "start" "-a" "98fbfd92598dea13ecc0b0ab18d57a3b0f23914861123cc9f11319c94515ddbb", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/lib.rs:655:9
[INFO] [stderr]     |
[INFO] [stderr] 655 |         OmittedParts::from(0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let _ = OmittedParts::from(0);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/lib.rs:663:9
[INFO] [stderr]     |
[INFO] [stderr] 663 |         OmittedParts::from(4);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 663 |         let _ = OmittedParts::from(4);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rustc-semver` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustc_semver-d42af72018e90937)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test::alpha_numeric_version ... ok
[INFO] [stdout] test test::equal ... ok
[INFO] [stdout] test test::edge_cases ... ok
[INFO] [stdout] test test::less_than ... ok
[INFO] [stdout] test test::meets_full ... ok
[INFO] [stdout] test test::meets_special ... ok
[INFO] [stdout] test test::meets_no_minor ... ok
[INFO] [stdout] test test::meets_no_patch ... ok
[INFO] [stdout] test test::formatting ... ok
[INFO] [stdout] test test::omitted_parts ... ok
[INFO] [stdout] test test::special_versions ... ok
[INFO] [stdout] test test::too_many_elements ... ok
[INFO] [stdout] test test::greater_than ... ok
[INFO] [stdout] test test::omitted_parts_with_zero - should panic ... ok
[INFO] [stdout] test test::omitted_parts_with_four - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustc_semver
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - RustcVersion (line 43) ... ok
[INFO] [stdout] test src/lib.rs - RustcVersion::parse (line 269) ... ok
[INFO] [stdout] test src/lib.rs - RustcVersion::meets (line 334) ... ok
[INFO] [stdout] test src/lib.rs - RustcVersion::new (line 239) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "98fbfd92598dea13ecc0b0ab18d57a3b0f23914861123cc9f11319c94515ddbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98fbfd92598dea13ecc0b0ab18d57a3b0f23914861123cc9f11319c94515ddbb", kill_on_drop: false }`
[INFO] [stdout] 98fbfd92598dea13ecc0b0ab18d57a3b0f23914861123cc9f11319c94515ddbb