[INFO] cloning repository https://github.com/system125/matrix [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/system125/matrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2Fmatrix", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2Fmatrix'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 31e544fd18ad6d618ead45eabf47524dddfa0243 [INFO] checking system125/matrix against try#5e7498e6740d105521420ac0ab146e2c7a21596d for pr-138363 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2Fmatrix" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/system125/matrix on toolchain 5e7498e6740d105521420ac0ab146e2c7a21596d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/system125/matrix [INFO] finished tweaking git repo https://github.com/system125/matrix [INFO] tweaked toml for git repo https://github.com/system125/matrix written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/system125/matrix 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" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking system125/matrix against try#5e7498e6740d105521420ac0ab146e2c7a21596d for pr-138363 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2Fmatrix" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/system125/matrix on toolchain 5e7498e6740d105521420ac0ab146e2c7a21596d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/system125/matrix [INFO] finished tweaking git repo https://github.com/system125/matrix [INFO] tweaked toml for git repo https://github.com/system125/matrix written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/system125/matrix 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" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd89f5647a44d852260f5cdee410250416cd6e23dd6d24e41c15a6ecfb825a32 [INFO] running `Command { std: "docker" "start" "-a" "cd89f5647a44d852260f5cdee410250416cd6e23dd6d24e41c15a6ecfb825a32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd89f5647a44d852260f5cdee410250416cd6e23dd6d24e41c15a6ecfb825a32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd89f5647a44d852260f5cdee410250416cd6e23dd6d24e41c15a6ecfb825a32", kill_on_drop: false }` [INFO] [stdout] cd89f5647a44d852260f5cdee410250416cd6e23dd6d24e41c15a6ecfb825a32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 864ec95720702a4e0738ef91c6887812f4214d363e4bb9f0b1a35498ee45804c [INFO] running `Command { std: "docker" "start" "-a" "864ec95720702a4e0738ef91c6887812f4214d363e4bb9f0b1a35498ee45804c", kill_on_drop: false }` [INFO] [stderr] Checking matrix v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> src/matrix/matrix.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> src/matrix/matrix.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::option::Iter` [INFO] [stdout] --> src/matrix/matrix.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use core::option::Iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::option::Iter` [INFO] [stdout] --> src/matrix/matrix.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use core::option::Iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `matrix_row_iter` should have an upper camel case name [INFO] [stdout] --> src/matrix/matrix_row_iter.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct matrix_row_iter<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MatrixRowIter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `matrix_row_iter` should have an upper camel case name [INFO] [stdout] --> src/matrix/matrix_row_iter.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct matrix_row_iter<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MatrixRowIter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mat` [INFO] [stdout] --> src/matrix/matrix_row_iter.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | let mat = &self.matrix.values; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_mat` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/matrix/matrix_row_iter.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | let height = self.matrix.height; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mat` [INFO] [stdout] --> src/matrix/matrix_row_iter.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | let mat = &self.matrix.values; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_mat` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/matrix/matrix_row_iter.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | let height = self.matrix.height; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `to_iter` and `to_mut_iter` are never used [INFO] [stdout] --> src/matrix/matrix.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Matrix { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn to_iter(&self)-> impl Iterator { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn to_mut_iter(&mut self) -> impl Iterator{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mat_A` should have a snake case name [INFO] [stdout] --> src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mat_A = Matrix::from( [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `mat_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `to_iter` and `to_mut_iter` are never used [INFO] [stdout] --> src/matrix/matrix.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Matrix { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn to_iter(&self)-> impl Iterator { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn to_mut_iter(&mut self) -> impl Iterator{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mat_A` should have a snake case name [INFO] [stdout] --> src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mat_A = Matrix::from( [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `mat_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "864ec95720702a4e0738ef91c6887812f4214d363e4bb9f0b1a35498ee45804c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "864ec95720702a4e0738ef91c6887812f4214d363e4bb9f0b1a35498ee45804c", kill_on_drop: false }` [INFO] [stdout] 864ec95720702a4e0738ef91c6887812f4214d363e4bb9f0b1a35498ee45804c