[INFO] fetching crate mathru 0.16.2...
[INFO] checking mathru-0.16.2 against master#4b9792692fbb675174d4d2082e7c37b2bc930e71 for pr-153692-1
[INFO] extracting crate mathru 0.16.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mathru 0.16.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mathru 0.16.2
[INFO] tweaked toml for crates.io crate mathru 0.16.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mathru 0.16.2 on toolchain 4b9792692fbb675174d4d2082e7c37b2bc930e71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mathru 0.16.2 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" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 842f65f081d84525b4e612a852c1b2182e3a034dfe75f4238bda2ef0db5e75ba
[INFO] running `Command { std: "docker" "start" "-a" "842f65f081d84525b4e612a852c1b2182e3a034dfe75f4238bda2ef0db5e75ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "842f65f081d84525b4e612a852c1b2182e3a034dfe75f4238bda2ef0db5e75ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842f65f081d84525b4e612a852c1b2182e3a034dfe75f4238bda2ef0db5e75ba", kill_on_drop: false }`
[INFO] [stdout] 842f65f081d84525b4e612a852c1b2182e3a034dfe75f4238bda2ef0db5e75ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c7f16efd97bc8fa2e371fab85c00f05f7bca51216159231b89a955a91f326fc
[INFO] running `Command { std: "docker" "start" "-a" "3c7f16efd97bc8fa2e371fab85c00f05f7bca51216159231b89a955a91f326fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cc v1.1.18
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[INFO] [stderr]    Compiling serde v1.0.227
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[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking half v2.4.0
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[INFO] [stderr]    Compiling lambert_w v1.2.28
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[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking mathru v0.16.2 (/opt/rustwide/workdir)
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[INFO] [stderr]    Compiling serde_derive v1.0.227
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[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> benches/algebra/linear/matrix/general/matrixcolumniterator.rs:112:24
[INFO] [stdout]     |
[INFO] [stdout] 112 |         fn column_iter(&self, column: usize, rows: usize) -> MatrixColumnIterator<T>;
[INFO] [stdout]     |                        ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 |         fn column_iter(&self, column: usize, rows: usize) -> MatrixColumnIterator<'_, T>;
[INFO] [stdout]     |                                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> benches/algebra/linear/matrix/general/matrixcolumniterator.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         fn column_iter(&self, column: usize, rows: usize) -> MatrixColumnIterator<T> {
[INFO] [stdout]     |                        ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 116 |         fn column_iter(&self, column: usize, rows: usize) -> MatrixColumnIterator<'_, T> {
[INFO] [stdout]     |                                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.05s
[INFO] running `Command { std: "docker" "inspect" "3c7f16efd97bc8fa2e371fab85c00f05f7bca51216159231b89a955a91f326fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7f16efd97bc8fa2e371fab85c00f05f7bca51216159231b89a955a91f326fc", kill_on_drop: false }`
[INFO] [stdout] 3c7f16efd97bc8fa2e371fab85c00f05f7bca51216159231b89a955a91f326fc
