[INFO] updating cached repository https://github.com/mod-42/math-vis-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 628a14354d826c573f816e4430d8932f9e561036
[INFO] testing mod-42/math-vis-rust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmod-42%2Fmath-vis-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mod-42/math-vis-rust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mod-42/math-vis-rust
[INFO] finished tweaking git repo https://github.com/mod-42/math-vis-rust
[INFO] tweaked toml for git repo https://github.com/mod-42/math-vis-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mod-42/math-vis-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c2fcb975e6d63fd4036f70ae96c973f28ed2af3b35654dfb3c64da6211d28f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c2fcb975e6d63fd4036f70ae96c973f28ed2af3b35654dfb3c64da6211d28f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c2fcb975e6d63fd4036f70ae96c973f28ed2af3b35654dfb3c64da6211d28f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2fcb975e6d63fd4036f70ae96c973f28ed2af3b35654dfb3c64da6211d28f8", kill_on_drop: false }`
[INFO] [stdout] 1c2fcb975e6d63fd4036f70ae96c973f28ed2af3b35654dfb3c64da6211d28f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d989e3d28614e0701f2ed7e21a28d144aee05947028c0a2241a7986576f4bd53
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d989e3d28614e0701f2ed7e21a28d144aee05947028c0a2241a7986576f4bd53", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathe-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for i in 0..6 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut c = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `e` is never read
[INFO] [stdout]   --> src/main.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut e = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/main.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |         for j in 0..6 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "d989e3d28614e0701f2ed7e21a28d144aee05947028c0a2241a7986576f4bd53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d989e3d28614e0701f2ed7e21a28d144aee05947028c0a2241a7986576f4bd53", kill_on_drop: false }`
[INFO] [stdout] d989e3d28614e0701f2ed7e21a28d144aee05947028c0a2241a7986576f4bd53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c76610f68c6a7116db8bb5ec90adcbef9d3f0655b80775fae890cbd8bb683617
[INFO] running `Command { std: "docker" "start" "-a" "c76610f68c6a7116db8bb5ec90adcbef9d3f0655b80775fae890cbd8bb683617", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathe-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for i in 0..6 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut c = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `e` is never read
[INFO] [stdout]   --> src/main.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut e = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/main.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |         for j in 0..6 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "c76610f68c6a7116db8bb5ec90adcbef9d3f0655b80775fae890cbd8bb683617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76610f68c6a7116db8bb5ec90adcbef9d3f0655b80775fae890cbd8bb683617", kill_on_drop: false }`
[INFO] [stdout] c76610f68c6a7116db8bb5ec90adcbef9d3f0655b80775fae890cbd8bb683617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 20ce2a19d1d90ecfabd4b9444ed4088848213bdce520c05e8f486be62cbe303d
[INFO] running `Command { std: "docker" "start" "-a" "20ce2a19d1d90ecfabd4b9444ed4088848213bdce520c05e8f486be62cbe303d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for i in 0..6 {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]   --> src/main.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut c = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `e` is never read
[INFO] [stderr]   --> src/main.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let mut e = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/main.rs:25:7
[INFO] [stderr]    |
[INFO] [stderr] 25 |         for j in 0..6 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mathe_project-b63e1170d865d7d2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "20ce2a19d1d90ecfabd4b9444ed4088848213bdce520c05e8f486be62cbe303d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ce2a19d1d90ecfabd4b9444ed4088848213bdce520c05e8f486be62cbe303d", kill_on_drop: false }`
[INFO] [stdout] 20ce2a19d1d90ecfabd4b9444ed4088848213bdce520c05e8f486be62cbe303d