[INFO] fetching crate peroxide 0.34.3...
[INFO] checking peroxide-0.34.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate peroxide 0.34.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate peroxide 0.34.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peroxide 0.34.3
[INFO] finished tweaking crates.io crate peroxide 0.34.3
[INFO] tweaked toml for crates.io crate peroxide 0.34.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate peroxide 0.34.3 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peroxide-ad v0.3.0
[INFO] [stderr]   Downloaded target-lexicon v0.12.12
[INFO] [stderr]   Downloaded lapack v0.19.0
[INFO] [stderr]   Downloaded hdf5-sys v0.8.1
[INFO] [stderr]   Downloaded blas-sys v0.7.1
[INFO] [stderr]   Downloaded netcdf v0.7.0
[INFO] [stderr]   Downloaded peroxide-num v0.1.4
[INFO] [stderr]   Downloaded array-init-cursor v0.2.0
[INFO] [stderr]   Downloaded bytemuck_derive v1.5.0
[INFO] [stderr]   Downloaded streaming-decompression v0.1.2
[INFO] [stderr]   Downloaded streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded snap v1.1.0
[INFO] [stderr]   Downloaded planus v0.3.1
[INFO] [stderr]   Downloaded arrow-format v0.8.1
[INFO] [stderr]   Downloaded zerocopy v0.7.26
[INFO] [stderr]   Downloaded parquet2 v0.17.2
[INFO] [stderr]   Downloaded zerocopy-derive v0.7.26
[INFO] [stderr]   Downloaded arrow2 v0.18.0
[INFO] [stderr]   Downloaded zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]   Downloaded ahash v0.8.6
[INFO] [stderr]   Downloaded parquet-format-safe v0.2.4
[INFO] [stderr]   Downloaded blas v0.22.0
[INFO] [stderr]   Downloaded netcdf-sys v0.4.1
[INFO] [stderr]   Downloaded puruspe v0.2.0
[INFO] [stderr]   Downloaded lapack-sys v0.14.0
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6758c6a6b4f442e43c99e0cdc4e3a36cd8664597d1be5563fe6d961678793f04
[INFO] running `Command { std: "docker" "start" "-a" "6758c6a6b4f442e43c99e0cdc4e3a36cd8664597d1be5563fe6d961678793f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6758c6a6b4f442e43c99e0cdc4e3a36cd8664597d1be5563fe6d961678793f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6758c6a6b4f442e43c99e0cdc4e3a36cd8664597d1be5563fe6d961678793f04", kill_on_drop: false }`
[INFO] [stdout] 6758c6a6b4f442e43c99e0cdc4e3a36cd8664597d1be5563fe6d961678793f04
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efd7748a7e0356bb803ebbd6f8bde66689131676f82ea3e152ae19deafdbf27b
[INFO] running `Command { std: "docker" "start" "-a" "efd7748a7e0356bb803ebbd6f8bde66689131676f82ea3e152ae19deafdbf27b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking peroxide-num v0.1.4
[INFO] [stderr]     Checking puruspe v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking thread-tree v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling peroxide-ad v0.3.0
[INFO] [stderr]     Checking peroxide v0.34.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> src/numerical/interp.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::Into;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]    --> src/numerical/spline.rs:208:20
[INFO] [stdout]     |
[INFO] [stdout] 208 | use std::convert::{From, Into};
[INFO] [stdout]     |                    ^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]    --> src/numerical/spline.rs:208:26
[INFO] [stdout]     |
[INFO] [stdout] 208 | use std::convert::{From, Into};
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]    --> src/statistics/dist.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | use self::rand::prelude::*;
[INFO] [stdout]     |     ---------------------- the item `Distribution` is already imported here
[INFO] [stdout] 150 | use self::rand_distr::Distribution;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]    --> src/statistics/dist.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 | use std::convert::Into;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DoubleEndedIterator` is imported redundantly
[INFO] [stdout]    --> src/structure/ad.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::iter::{FromIterator, DoubleEndedIterator, ExactSizeIterator};
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `DoubleEndedIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ExactSizeIterator` is imported redundantly
[INFO] [stdout]    --> src/structure/ad.rs:116:52
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::iter::{FromIterator, DoubleEndedIterator, ExactSizeIterator};
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `ExactSizeIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `matrixmultiply` is imported redundantly
[INFO] [stdout]    --> src/structure/matrix.rs:617:5
[INFO] [stdout]     |
[INFO] [stdout] 617 | use ::matrixmultiply;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | extern crate matrixmultiply;
[INFO] [stdout]     | ---------------------------- the item `matrixmultiply` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> src/traits/fp.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::Into;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]   --> src/util/non_macro.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::Into;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> src/numerical/interp.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::Into;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]    --> src/numerical/spline.rs:208:20
[INFO] [stdout]     |
[INFO] [stdout] 208 | use std::convert::{From, Into};
[INFO] [stdout]     |                    ^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]    --> src/numerical/spline.rs:208:26
[INFO] [stdout]     |
[INFO] [stdout] 208 | use std::convert::{From, Into};
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]    --> src/statistics/dist.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | use self::rand::prelude::*;
[INFO] [stdout]     |     ---------------------- the item `Distribution` is already imported here
[INFO] [stdout] 150 | use self::rand_distr::Distribution;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]    --> src/statistics/dist.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 | use std::convert::Into;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DoubleEndedIterator` is imported redundantly
[INFO] [stdout]    --> src/structure/ad.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::iter::{FromIterator, DoubleEndedIterator, ExactSizeIterator};
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `DoubleEndedIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ExactSizeIterator` is imported redundantly
[INFO] [stdout]    --> src/structure/ad.rs:116:52
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::iter::{FromIterator, DoubleEndedIterator, ExactSizeIterator};
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `ExactSizeIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `matrixmultiply` is imported redundantly
[INFO] [stdout]    --> src/structure/matrix.rs:617:5
[INFO] [stdout]     |
[INFO] [stdout] 617 | use ::matrixmultiply;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | extern crate matrixmultiply;
[INFO] [stdout]     | ---------------------------- the item `matrixmultiply` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> src/traits/fp.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::Into;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]   --> src/util/non_macro.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::Into;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.55s
[INFO] running `Command { std: "docker" "inspect" "efd7748a7e0356bb803ebbd6f8bde66689131676f82ea3e152ae19deafdbf27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd7748a7e0356bb803ebbd6f8bde66689131676f82ea3e152ae19deafdbf27b", kill_on_drop: false }`
[INFO] [stdout] efd7748a7e0356bb803ebbd6f8bde66689131676f82ea3e152ae19deafdbf27b