[INFO] fetching crate GSL 7.0.0...
[INFO] checking GSL-7.0.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate GSL 7.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate GSL 7.0.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate GSL 7.0.0
[INFO] finished tweaking crates.io crate GSL 7.0.0
[INFO] tweaked toml for crates.io crate GSL 7.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate GSL 7.0.0 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded GSL-sys v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 061a050ab57ea7ce723ae6af5369f76bf7471ed66772f995edd868bfecbbf97b
[INFO] running `Command { std: "docker" "start" "-a" "061a050ab57ea7ce723ae6af5369f76bf7471ed66772f995edd868bfecbbf97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "061a050ab57ea7ce723ae6af5369f76bf7471ed66772f995edd868bfecbbf97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "061a050ab57ea7ce723ae6af5369f76bf7471ed66772f995edd868bfecbbf97b", kill_on_drop: false }`
[INFO] [stdout] 061a050ab57ea7ce723ae6af5369f76bf7471ed66772f995edd868bfecbbf97b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53d9964517d358edea04c05a6e4c9bc27756ca2a9c826721706eb37d68e22079
[INFO] running `Command { std: "docker" "start" "-a" "53d9964517d358edea04c05a6e4c9bc27756ca2a9c826721706eb37d68e22079", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling GSL-sys v3.0.0
[INFO] [stderr]     Checking GSL v7.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]  --> src/utilities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Drop;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/complex.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]    --> src/types/minimizer.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | use sys;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:18:1
[INFO] [stdout]     |
[INFO] [stdout] 18  | extern crate gsl_sys as sys;
[INFO] [stdout]     | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/multiroot.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/roots.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dawson.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dilogarithm.rs:5:13
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]  --> src/utilities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Drop;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/complex.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]    --> src/types/minimizer.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | use sys;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:18:1
[INFO] [stdout]     |
[INFO] [stdout] 18  | extern crate gsl_sys as sys;
[INFO] [stdout]     | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/multiroot.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `VectorF64` is imported redundantly
[INFO] [stdout]    --> src/types/multiroot.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 278 |     use super::*;
[INFO] [stdout]     |         -------- the item `VectorF64` is already imported here
[INFO] [stdout] 279 |     use multiroot::test_residual;
[INFO] [stdout] 280 |     use VectorF64;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/roots.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dawson.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dilogarithm.rs:5:13
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/cblas.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(pub(crate) sys::CBLAS_INDEX_t);
[INFO] [stdout]   |            ----- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Index` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(());
[INFO] [stdout]   |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/cblas.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(pub(crate) sys::CBLAS_INDEX_t);
[INFO] [stdout]   |            ----- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Index` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(());
[INFO] [stdout]   |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "53d9964517d358edea04c05a6e4c9bc27756ca2a9c826721706eb37d68e22079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53d9964517d358edea04c05a6e4c9bc27756ca2a9c826721706eb37d68e22079", kill_on_drop: false }`
[INFO] [stdout] 53d9964517d358edea04c05a6e4c9bc27756ca2a9c826721706eb37d68e22079
[INFO] checking GSL-7.0.0 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate GSL 7.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate GSL 7.0.0 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate GSL 7.0.0
[INFO] finished tweaking crates.io crate GSL 7.0.0
[INFO] tweaked toml for crates.io crate GSL 7.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate GSL 7.0.0 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" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84e3aa664fcde8d87eba96c6291b7262a4700d0c35c226eaf25e5b8788324647
[INFO] running `Command { std: "docker" "start" "-a" "84e3aa664fcde8d87eba96c6291b7262a4700d0c35c226eaf25e5b8788324647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84e3aa664fcde8d87eba96c6291b7262a4700d0c35c226eaf25e5b8788324647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84e3aa664fcde8d87eba96c6291b7262a4700d0c35c226eaf25e5b8788324647", kill_on_drop: false }`
[INFO] [stdout] 84e3aa664fcde8d87eba96c6291b7262a4700d0c35c226eaf25e5b8788324647
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7eb23367353fc4d692a5792768a7e2553c82f355c26614d825f04aace073120
[INFO] running `Command { std: "docker" "start" "-a" "c7eb23367353fc4d692a5792768a7e2553c82f355c26614d825f04aace073120", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling GSL-sys v3.0.0
[INFO] [stderr]     Checking GSL v7.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]  --> src/utilities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Drop;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/complex.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]    --> src/types/minimizer.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | use sys;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:18:1
[INFO] [stdout]     |
[INFO] [stdout] 18  | extern crate gsl_sys as sys;
[INFO] [stdout]     | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/multiroot.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/roots.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dawson.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dilogarithm.rs:5:13
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]  --> src/utilities.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Drop;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/complex.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]    --> src/types/minimizer.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | use sys;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:18:1
[INFO] [stdout]     |
[INFO] [stdout] 18  | extern crate gsl_sys as sys;
[INFO] [stdout]     | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/multiroot.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `VectorF64` is imported redundantly
[INFO] [stdout]    --> src/types/multiroot.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 278 |     use super::*;
[INFO] [stdout]     |         -------- the item `VectorF64` is already imported here
[INFO] [stdout] 279 |     use multiroot::test_residual;
[INFO] [stdout] 280 |     use VectorF64;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/types/result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/types/roots.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | use sys;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dawson.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]   --> src/dilogarithm.rs:5:13
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::{sys, types, Value};
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate gsl_sys as sys;
[INFO] [stdout]    | ---------------------------- the item `sys` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/cblas.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(pub(crate) sys::CBLAS_INDEX_t);
[INFO] [stdout]   |            ----- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Index` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(());
[INFO] [stdout]   |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/cblas.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(pub(crate) sys::CBLAS_INDEX_t);
[INFO] [stdout]   |            ----- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Index` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Index(());
[INFO] [stdout]   |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "c7eb23367353fc4d692a5792768a7e2553c82f355c26614d825f04aace073120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7eb23367353fc4d692a5792768a7e2553c82f355c26614d825f04aace073120", kill_on_drop: false }`
[INFO] [stdout] c7eb23367353fc4d692a5792768a7e2553c82f355c26614d825f04aace073120
