[INFO] fetching crate alg 0.2.0...
[INFO] testing alg-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate alg 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate alg 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alg 0.2.0
[INFO] finished tweaking crates.io crate alg 0.2.0
[INFO] tweaked toml for crates.io crate alg 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] a1b200eed108eb977fe3aac51fd863ed349966bfc48ff3fdd25331efbd174540
[INFO] running `Command { std: "docker" "start" "-a" "a1b200eed108eb977fe3aac51fd863ed349966bfc48ff3fdd25331efbd174540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1b200eed108eb977fe3aac51fd863ed349966bfc48ff3fdd25331efbd174540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b200eed108eb977fe3aac51fd863ed349966bfc48ff3fdd25331efbd174540", kill_on_drop: false }`
[INFO] [stdout] a1b200eed108eb977fe3aac51fd863ed349966bfc48ff3fdd25331efbd174540
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--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] b0d781bdb451f613d3ceb42742292f8bbdeac5b5940ccee8374eefcf51ff7cdf
[INFO] running `Command { std: "docker" "start" "-a" "b0d781bdb451f613d3ceb42742292f8bbdeac5b5940ccee8374eefcf51ff7cdf", kill_on_drop: false }`
[INFO] [stderr]    Compiling alg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn op(Self, Self) -> Self;
[INFO] [stdout]   |           ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn op(Self, Self) -> Self;
[INFO] [stdout]   |                 ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "b0d781bdb451f613d3ceb42742292f8bbdeac5b5940ccee8374eefcf51ff7cdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d781bdb451f613d3ceb42742292f8bbdeac5b5940ccee8374eefcf51ff7cdf", kill_on_drop: false }`
[INFO] [stdout] b0d781bdb451f613d3ceb42742292f8bbdeac5b5940ccee8374eefcf51ff7cdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2b1cff26f0465c73303b14b94500e46ff53782ee65ee7891cbaadbb97cf1126
[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" "f2b1cff26f0465c73303b14b94500e46ff53782ee65ee7891cbaadbb97cf1126", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn op(Self, Self) -> Self;
[INFO] [stdout]   |           ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling alg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn op(Self, Self) -> Self;
[INFO] [stdout]   |                 ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn op(Self, Self) -> Self;
[INFO] [stdout]   |           ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn op(Self, Self) -> Self;
[INFO] [stdout]   |                 ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "f2b1cff26f0465c73303b14b94500e46ff53782ee65ee7891cbaadbb97cf1126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b1cff26f0465c73303b14b94500e46ff53782ee65ee7891cbaadbb97cf1126", kill_on_drop: false }`
[INFO] [stdout] f2b1cff26f0465c73303b14b94500e46ff53782ee65ee7891cbaadbb97cf1126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7294a154b021c6f8d7fe88e3ecc086e45bf67cf1bc2b115a4eee8d0b29a9ba19
[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" "7294a154b021c6f8d7fe88e3ecc086e45bf67cf1bc2b115a4eee8d0b29a9ba19", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/lib.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn op(Self, Self) -> Self;
[INFO] [stderr]   |           ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/lib.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn op(Self, Self) -> Self;
[INFO] [stderr]   |                 ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: `alg` (lib) generated 2 warnings
[INFO] [stderr] warning: `alg` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algebra-1040e91b6f0d2825)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algebra
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7294a154b021c6f8d7fe88e3ecc086e45bf67cf1bc2b115a4eee8d0b29a9ba19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7294a154b021c6f8d7fe88e3ecc086e45bf67cf1bc2b115a4eee8d0b29a9ba19", kill_on_drop: false }`
[INFO] [stdout] 7294a154b021c6f8d7fe88e3ecc086e45bf67cf1bc2b115a4eee8d0b29a9ba19