[INFO] cloning repository https://github.com/dandelion-blanc/practice14_nalgebra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dandelion-blanc/practice14_nalgebra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice14_nalgebra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice14_nalgebra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc7ce3e8d822212b1ba7d994aa955b2ef09db169
[INFO] testing dandelion-blanc/practice14_nalgebra against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandelion-blanc%2Fpractice14_nalgebra" "/workspace/builds/worker-110/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-110/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dandelion-blanc/practice14_nalgebra on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dandelion-blanc/practice14_nalgebra
[INFO] finished tweaking git repo https://github.com/dandelion-blanc/practice14_nalgebra
[INFO] tweaked toml for git repo https://github.com/dandelion-blanc/practice14_nalgebra written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] crate git repo https://github.com/dandelion-blanc/practice14_nalgebra already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simba v0.2.4
[INFO] [stderr]   Downloaded nalgebra v0.22.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2dad1445472ac535b51c12229e4b751afacc4362461ec318e8366c78e9b8a42
[INFO] running `Command { std: "docker" "start" "-a" "d2dad1445472ac535b51c12229e4b751afacc4362461ec318e8366c78e9b8a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2dad1445472ac535b51c12229e4b751afacc4362461ec318e8366c78e9b8a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2dad1445472ac535b51c12229e4b751afacc4362461ec318e8366c78e9b8a42", kill_on_drop: false }`
[INFO] [stdout] d2dad1445472ac535b51c12229e4b751afacc4362461ec318e8366c78e9b8a42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff9daa9a145deb9e083476448d83e434a30f27a1e8ca3accc784604c97a33ad7
[INFO] running `Command { std: "docker" "start" "-a" "ff9daa9a145deb9e083476448d83e434a30f27a1e8ca3accc784604c97a33ad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling simba v0.2.4
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling nalgebra v0.22.1
[INFO] [stderr]    Compiling practice14_nalgebra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.73s
[INFO] running `Command { std: "docker" "inspect" "ff9daa9a145deb9e083476448d83e434a30f27a1e8ca3accc784604c97a33ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff9daa9a145deb9e083476448d83e434a30f27a1e8ca3accc784604c97a33ad7", kill_on_drop: false }`
[INFO] [stdout] ff9daa9a145deb9e083476448d83e434a30f27a1e8ca3accc784604c97a33ad7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97266b7cc3fb2e7b6ca919b9879d781299949cb209f175a00c43f0d2359b83cc
[INFO] running `Command { std: "docker" "start" "-a" "97266b7cc3fb2e7b6ca919b9879d781299949cb209f175a00c43f0d2359b83cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling practice14_nalgebra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/mirror_mat.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let (mut left, mut right) = 
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/mirror_mat.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let (mut left, mut right) = 
[INFO] [stdout]    |          ----^^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 39.02s
[INFO] running `Command { std: "docker" "inspect" "97266b7cc3fb2e7b6ca919b9879d781299949cb209f175a00c43f0d2359b83cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97266b7cc3fb2e7b6ca919b9879d781299949cb209f175a00c43f0d2359b83cc", kill_on_drop: false }`
[INFO] [stdout] 97266b7cc3fb2e7b6ca919b9879d781299949cb209f175a00c43f0d2359b83cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 917ff483f2e9639cf12945b1390d00a2b56a974e59f3f93cc783257affec59f0
[INFO] running `Command { std: "docker" "start" "-a" "917ff483f2e9639cf12945b1390d00a2b56a974e59f3f93cc783257affec59f0", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/mirror_mat.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let (mut left, mut right) = 
[INFO] [stderr]    |          ----^^^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/mirror_mat.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let (mut left, mut right) = 
[INFO] [stderr]    |          ----^^^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `practice14_nalgebra` (example "mirror_mat") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/practice14_nalgebra-5f222da212a7083b)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "917ff483f2e9639cf12945b1390d00a2b56a974e59f3f93cc783257affec59f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "917ff483f2e9639cf12945b1390d00a2b56a974e59f3f93cc783257affec59f0", kill_on_drop: false }`
[INFO] [stdout] 917ff483f2e9639cf12945b1390d00a2b56a974e59f3f93cc783257affec59f0