[INFO] fetching crate permu-rs 0.2.0...
[INFO] testing permu-rs-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate permu-rs 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate permu-rs 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate permu-rs 0.2.0
[INFO] finished tweaking crates.io crate permu-rs 0.2.0
[INFO] tweaked toml for crates.io crate permu-rs 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 373b87a2d5e5fcca3f86f2474f9444c737a804c8e570d9a5fb3b0db5296bbc58
[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" "373b87a2d5e5fcca3f86f2474f9444c737a804c8e570d9a5fb3b0db5296bbc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "373b87a2d5e5fcca3f86f2474f9444c737a804c8e570d9a5fb3b0db5296bbc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "373b87a2d5e5fcca3f86f2474f9444c737a804c8e570d9a5fb3b0db5296bbc58", kill_on_drop: false }`
[INFO] [stdout] 373b87a2d5e5fcca3f86f2474f9444c737a804c8e570d9a5fb3b0db5296bbc58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 990ef7c7ae990477427d76ba2672e097841480a4898f48988d8abd86890f240a
[INFO] running `Command { std: "docker" "start" "-a" "990ef7c7ae990477427d76ba2672e097841480a4898f48988d8abd86890f240a", kill_on_drop: false }`
[INFO] [stderr]    Compiling permu-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "990ef7c7ae990477427d76ba2672e097841480a4898f48988d8abd86890f240a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990ef7c7ae990477427d76ba2672e097841480a4898f48988d8abd86890f240a", kill_on_drop: false }`
[INFO] [stdout] 990ef7c7ae990477427d76ba2672e097841480a4898f48988d8abd86890f240a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 663bf06cfd743468a5f651fc806e102f0494b16a022e63fd915dfd4d6fffe7cc
[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" "663bf06cfd743468a5f651fc806e102f0494b16a022e63fd915dfd4d6fffe7cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling permu-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/problems.rs:484:13
[INFO] [stdout]     |
[INFO] [stdout] 484 |         let mut permu = Permutation::<u8>::from_vec_unsec(
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 39.96s
[INFO] running `Command { std: "docker" "inspect" "663bf06cfd743468a5f651fc806e102f0494b16a022e63fd915dfd4d6fffe7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663bf06cfd743468a5f651fc806e102f0494b16a022e63fd915dfd4d6fffe7cc", kill_on_drop: false }`
[INFO] [stdout] 663bf06cfd743468a5f651fc806e102f0494b16a022e63fd915dfd4d6fffe7cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 3a815a3c8c44260ba43fc10d757d187731c4f9923dea1269050826938767b3b4
[INFO] running `Command { std: "docker" "start" "-a" "3a815a3c8c44260ba43fc10d757d187731c4f9923dea1269050826938767b3b4", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/problems.rs:484:13
[INFO] [stderr]     |
[INFO] [stderr] 484 |         let mut permu = Permutation::<u8>::from_vec_unsec(
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/permu_rs-7f2438d8298dc9b4
[INFO] [stdout] running 4 tests
[INFO] [stdout] test problems::test::read_pfsp ... ok
[INFO] [stdout] test problems::test::read_qap ... ok
[INFO] [stdout] test problems::test::read_lop ... ok
[INFO] [stderr]    Doc-tests permu-rs
[INFO] [stdout] test problems::test::test_load ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test src/inversion.rs - inversion::Inversion<T>::from_vec (line 34) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::random (line 352) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::Inversion<T>::zeros (line 51) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::InversionPopulation<T>::from_vec (line 184) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::Inversion<T>::from_permu (line 66) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::InversionPopulation<T>::sample (line 404) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::InversionPopulation<T>::learn (line 362) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::identity (line 332) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::learn (line 511) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::invert (line 406) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::from_vec (line 293) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::Inversion<T>::to_permu (line 106) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::InversionPopulation<T>::zeros (line 216) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::compose_with (line 227) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::zeros (line 309) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::from_vec_unsec (line 68) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::InversionPopulation<T>::from_permus (line 303) ... ok
[INFO] [stdout] test src/inversion.rs - inversion::InversionPopulation<T>::to_permus (line 252) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::is_permu (line 145) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::identity (line 118) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::from_vec (line 44) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::central_permu (line 447) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::PermuPopulation<T>::sample (line 557) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::random (line 84) ... ok
[INFO] [stdout] test src/permutation.rs - permutation::Permutation<T>::invert (line 178) ... ok
[INFO] [stdout] test src/rim.rs - rim::Rim<T>::from_vec (line 34) ... ok
[INFO] [stdout] test src/rim.rs - rim::Rim<T>::from_permu (line 118) ... ok
[INFO] [stdout] test src/rim.rs - rim::Rim<T>::to_permu (line 60) ... ok
[INFO] [stdout] test src/rim.rs - rim::RimPopulation<T>::zeros (line 229) ... ok
[INFO] [stdout] test src/rim.rs - rim::RimPopulation<T>::from_vec (line 200) ... ok
[INFO] [stdout] test src/rim.rs - rim::RimPopulation<T>::from_permus (line 303) ... ok
[INFO] [stdout] test src/rim.rs - rim::RimPopulation<T>::learn (line 357) ... ok
[INFO] [stdout] test src/rim.rs - rim::RimPopulation<T>::sample (line 392) ... ok
[INFO] [stdout] test src/rim.rs - rim::RimPopulation<T>::to_permus (line 254) ... ok
[INFO] [stdout] test src/problems.rs - problems::ProblemInstance::evaluate (line 92) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3a815a3c8c44260ba43fc10d757d187731c4f9923dea1269050826938767b3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a815a3c8c44260ba43fc10d757d187731c4f9923dea1269050826938767b3b4", kill_on_drop: false }`
[INFO] [stdout] 3a815a3c8c44260ba43fc10d757d187731c4f9923dea1269050826938767b3b4