[INFO] cloning repository https://github.com/zhi106/git-training
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhi106/git-training" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhi106%2Fgit-training", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhi106%2Fgit-training'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0a85250f156bb1b0af495756370caf0f2cabda9
[INFO] checking zhi106/git-training against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhi106%2Fgit-training" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zhi106/git-training
[INFO] finished tweaking git repo https://github.com/zhi106/git-training
[INFO] tweaked toml for git repo https://github.com/zhi106/git-training written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zhi106/git-training on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zhi106/git-training 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" "+028201683a76a5cd349729c6819c46607119c4e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5c1b1b7d784641aaaa05571c534de831f4846f8b444ab29a71a0d81cf0409f2
[INFO] running `Command { std: "docker" "start" "-a" "a5c1b1b7d784641aaaa05571c534de831f4846f8b444ab29a71a0d81cf0409f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5c1b1b7d784641aaaa05571c534de831f4846f8b444ab29a71a0d81cf0409f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5c1b1b7d784641aaaa05571c534de831f4846f8b444ab29a71a0d81cf0409f2", kill_on_drop: false }`
[INFO] [stdout] a5c1b1b7d784641aaaa05571c534de831f4846f8b444ab29a71a0d81cf0409f2
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8e3ca50d2fc1ff63b06526a6845f6a94d63391dbd71b20bc720844d5e252757
[INFO] running `Command { std: "docker" "start" "-a" "e8e3ca50d2fc1ff63b06526a6845f6a94d63391dbd71b20bc720844d5e252757", kill_on_drop: false }`
[INFO] [stderr]     Checking math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ops::*`
[INFO] [stdout]  --> src/vec_mathz.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use ops::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::*`
[INFO] [stdout]  --> src/vec_mathz.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use ops::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec_mathz/matrix_mn.rs:412:13
[INFO] [stdout]     |
[INFO] [stdout] 412 |         let mut v = MatMN::new(n, n);
[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]    --> src/vec_mathz/matrix_mn.rs:412:13
[INFO] [stdout]     |
[INFO] [stdout] 412 |         let mut v = MatMN::new(n, n);
[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] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaTFNXFd"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math` (bin "math" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e8e3ca50d2fc1ff63b06526a6845f6a94d63391dbd71b20bc720844d5e252757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8e3ca50d2fc1ff63b06526a6845f6a94d63391dbd71b20bc720844d5e252757", kill_on_drop: false }`
[INFO] [stdout] e8e3ca50d2fc1ff63b06526a6845f6a94d63391dbd71b20bc720844d5e252757