[INFO] cloning repository https://github.com/chloro-pn/matrix-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chloro-pn/matrix-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloro-pn%2Fmatrix-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloro-pn%2Fmatrix-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bc0dcb57a41864d36c175e687309b91845b54ae
[INFO] checking chloro-pn/matrix-rs against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloro-pn%2Fmatrix-rs" "/workspace/builds/worker-89/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-89/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chloro-pn/matrix-rs on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chloro-pn/matrix-rs
[INFO] finished tweaking git repo https://github.com/chloro-pn/matrix-rs
[INFO] tweaked toml for git repo https://github.com/chloro-pn/matrix-rs written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate git repo https://github.com/chloro-pn/matrix-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d83483b4f38e468a789efd743be7eea1d1145a50076db093d5f9aeec1e524bbe
[INFO] running `Command { std: "docker" "start" "-a" "d83483b4f38e468a789efd743be7eea1d1145a50076db093d5f9aeec1e524bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d83483b4f38e468a789efd743be7eea1d1145a50076db093d5f9aeec1e524bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83483b4f38e468a789efd743be7eea1d1145a50076db093d5f9aeec1e524bbe", kill_on_drop: false }`
[INFO] [stdout] d83483b4f38e468a789efd743be7eea1d1145a50076db093d5f9aeec1e524bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bc31ff3316201b42f565ad5f01021006fe0b0ee8b49fd5eeaf03207db580bd3
[INFO] running `Command { std: "docker" "start" "-a" "6bc31ff3316201b42f565ad5f01021006fe0b0ee8b49fd5eeaf03207db580bd3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking matrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_nth_column`
[INFO] [stdout]    --> src/dense_matrix.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn set_nth_column(self : &mut Self, col : usize, v : Vector<T>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/dense_matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with`
[INFO] [stdout]   --> src/vector.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new_with(length : usize, value : T) -> Vector<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/vector.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[warn(dead_code)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_nth_column`
[INFO] [stdout]    --> src/dense_matrix.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn set_nth_column(self : &mut Self, col : usize, v : Vector<T>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/dense_matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6bc31ff3316201b42f565ad5f01021006fe0b0ee8b49fd5eeaf03207db580bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bc31ff3316201b42f565ad5f01021006fe0b0ee8b49fd5eeaf03207db580bd3", kill_on_drop: false }`
[INFO] [stdout] 6bc31ff3316201b42f565ad5f01021006fe0b0ee8b49fd5eeaf03207db580bd3