[INFO] crate mathru 0.6.3 is already in cache
[INFO] checking mathru-0.6.3 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate mathru 0.6.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mathru 0.6.3 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mathru 0.6.3
[INFO] finished tweaking crates.io crate mathru 0.6.3
[INFO] tweaked toml for crates.io crate mathru 0.6.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c5854cd05814a5352b918b7a628f953e716dd755875634c2a47fa14e0189c0c9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "c5854cd05814a5352b918b7a628f953e716dd755875634c2a47fa14e0189c0c9"`
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking mathru v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr] warning: function is never used: `mat1000_add_mat1000`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn mat1000_add_mat1000(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat1000_add_mat1000_func`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn mat1000_add_mat1000_func(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat200_add_mat200`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn mat200_add_mat200(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat500_add_mat500`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn mat500_add_mat500(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat100_mul_mat100`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:59:4
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn mat100_mul_mat100(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat200_mul_mat200`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn mat200_mul_mat200(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat500_mul_mat500`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:75:4
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn mat500_mul_mat500(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat500_add_scalar_ownership`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn mat500_add_scalar_ownership(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat500_add_scalar_borrow`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:90:4
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn mat500_add_scalar_borrow(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dec_lu_100x100`
[INFO] [stderr]   --> benches/algebra/linear/matrix.rs:97:4
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn dec_lu_100x100(bench: &mut Criterion)
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dec_lu_200x200`
[INFO] [stderr]    --> benches/algebra/linear/matrix.rs:103:4
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn dec_lu_200x200(bench: &mut Criterion)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dec_lu_500x500`
[INFO] [stderr]    --> benches/algebra/linear/matrix.rs:109:4
[INFO] [stderr]     |
[INFO] [stderr] 109 | fn dec_lu_500x500(bench: &mut Criterion)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.84s
[INFO] running `"docker" "inspect" "c5854cd05814a5352b918b7a628f953e716dd755875634c2a47fa14e0189c0c9"`
[INFO] running `"docker" "rm" "-f" "c5854cd05814a5352b918b7a628f953e716dd755875634c2a47fa14e0189c0c9"`
[INFO] [stdout] c5854cd05814a5352b918b7a628f953e716dd755875634c2a47fa14e0189c0c9