[INFO] fetching crate basic_dsp_matrix 0.10.0...
[INFO] checking basic_dsp_matrix-0.10.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate basic_dsp_matrix 0.10.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate basic_dsp_matrix 0.10.0 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 basic_dsp_matrix 0.10.0
[INFO] finished tweaking crates.io crate basic_dsp_matrix 0.10.0
[INFO] tweaked toml for crates.io crate basic_dsp_matrix 0.10.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 98 packages
[INFO] [stderr]       Adding aho-corasick v0.6.10 (latest: v1.1.3)
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[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a149a9404f07a260fdfcb70c01b44d41b971fb924561f52f92875a8ceaa983c6
[INFO] running `Command { std: "docker" "start" "-a" "a149a9404f07a260fdfcb70c01b44d41b971fb924561f52f92875a8ceaa983c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a149a9404f07a260fdfcb70c01b44d41b971fb924561f52f92875a8ceaa983c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a149a9404f07a260fdfcb70c01b44d41b971fb924561f52f92875a8ceaa983c6", kill_on_drop: false }`
[INFO] [stdout] a149a9404f07a260fdfcb70c01b44d41b971fb924561f52f92875a8ceaa983c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7873cb8f192bd2274c95b8be8a1a667929135faec228d23036311113f4ccdaee
[INFO] running `Command { std: "docker" "start" "-a" "7873cb8f192bd2274c95b8be8a1a667929135faec228d23036311113f4ccdaee", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]    Compiling rustfft v6.2.0
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]     Checking libc v0.2.153
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
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[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking primal-check v0.3.3
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling displaydoc v0.1.7
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking hamcrest v0.1.5
[INFO] [stderr]     Checking linreg v0.2.0
[INFO] [stderr]     Checking basic_dsp_vector v0.10.0
[INFO] [stderr]     Checking basic_dsp_matrix v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/to_from_mat_conversions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoFixedLength` is imported redundantly
[INFO] [stdout]  --> src/general/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `IntoFixedLength` is already imported here
[INFO] [stdout] 2 | use crate::IntoFixedLength;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::elementary::*`
[INFO] [stdout]  --> src/general/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::elementary::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoFixedLength` is imported redundantly
[INFO] [stdout]  --> src/general/statistics.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `IntoFixedLength` is already imported here
[INFO] [stdout] 2 | use crate::IntoFixedLength;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::statistics::*`
[INFO] [stdout]  --> src/general/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::statistics::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::general::*`
[INFO] [stdout]   --> src/lib.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub use self::general::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/rededicate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::rededicate::*`
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use self::rededicate::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/complex.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::complex::*`
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use self::complex::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/real.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::real::*`
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub use self::real::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/time_freq.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::time_freq::*`
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use self::time_freq::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/to_from_mat_conversions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoFixedLength` is imported redundantly
[INFO] [stdout]  --> src/general/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `IntoFixedLength` is already imported here
[INFO] [stdout] 2 | use crate::IntoFixedLength;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::elementary::*`
[INFO] [stdout]  --> src/general/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::elementary::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoFixedLength` is imported redundantly
[INFO] [stdout]  --> src/general/statistics.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `IntoFixedLength` is already imported here
[INFO] [stdout] 2 | use crate::IntoFixedLength;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::statistics::*`
[INFO] [stdout]  --> src/general/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::statistics::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::general::*`
[INFO] [stdout]   --> src/lib.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub use self::general::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/rededicate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::rededicate::*`
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use self::rededicate::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/complex.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::complex::*`
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use self::complex::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/real.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::real::*`
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub use self::real::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TransformContent` is imported redundantly
[INFO] [stdout]  --> src/time_freq.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `TransformContent` is already imported here
[INFO] [stdout] 2 | use crate::TransformContent;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::time_freq::*`
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use self::time_freq::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.94s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint v0.1.44, num-complex v0.1.43, num-rational v0.1.42
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "7873cb8f192bd2274c95b8be8a1a667929135faec228d23036311113f4ccdaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7873cb8f192bd2274c95b8be8a1a667929135faec228d23036311113f4ccdaee", kill_on_drop: false }`
[INFO] [stdout] 7873cb8f192bd2274c95b8be8a1a667929135faec228d23036311113f4ccdaee