[INFO] cloning repository https://github.com/MicroJoe/rmatrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MicroJoe/rmatrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMicroJoe%2Frmatrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMicroJoe%2Frmatrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52506714448a41de35353162c64de33266acce43
[INFO] checking MicroJoe/rmatrix against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMicroJoe%2Frmatrix" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MicroJoe/rmatrix on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MicroJoe/rmatrix
[INFO] finished tweaking git repo https://github.com/MicroJoe/rmatrix
[INFO] tweaked toml for git repo https://github.com/MicroJoe/rmatrix written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/MicroJoe/rmatrix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e0d72ccd09849ee2a45cb96310046ddecbb189a6495a105ce38a65a9ca6c37d
[INFO] running `Command { std: "docker" "start" "-a" "9e0d72ccd09849ee2a45cb96310046ddecbb189a6495a105ce38a65a9ca6c37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e0d72ccd09849ee2a45cb96310046ddecbb189a6495a105ce38a65a9ca6c37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0d72ccd09849ee2a45cb96310046ddecbb189a6495a105ce38a65a9ca6c37d", kill_on_drop: false }`
[INFO] [stdout] 9e0d72ccd09849ee2a45cb96310046ddecbb189a6495a105ce38a65a9ca6c37d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9501589000f46f2dd47455f8b78bb3a7766800510392ca76486804688d6963d
[INFO] running `Command { std: "docker" "start" "-a" "e9501589000f46f2dd47455f8b78bb3a7766800510392ca76486804688d6963d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rmatrix v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `id`
[INFO] [stdout]   --> src/matrix.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn id(w: usize) -> Matrix {
[INFO] [stdout]    |        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/matrix.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | /         format!("sq_from: vector length ({}) != matrix allocated size ({})",
[INFO] [stdout] 25 | |                 vec.len(), w*w)
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 24 ~         "sq_from: vector length ({}) != matrix allocated size ({})",
[INFO] [stdout] 25 ~                 vec.len(), w*w
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/matrix.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | /         format!("sq_from: vector length ({}) != matrix allocated size ({})",
[INFO] [stdout] 25 | |                 vec.len(), w*w)
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 24 ~         "sq_from: vector length ({}) != matrix allocated size ({})",
[INFO] [stdout] 25 ~                 vec.len(), w*w
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "e9501589000f46f2dd47455f8b78bb3a7766800510392ca76486804688d6963d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9501589000f46f2dd47455f8b78bb3a7766800510392ca76486804688d6963d", kill_on_drop: false }`
[INFO] [stdout] e9501589000f46f2dd47455f8b78bb3a7766800510392ca76486804688d6963d