[INFO] cloning repository https://github.com/juliandunn/xmascard2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juliandunn/xmascard2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuliandunn%2Fxmascard2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuliandunn%2Fxmascard2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 316b1c574cc9db0956f6651e8280b4a2c482e36d
[INFO] testing juliandunn/xmascard2015 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuliandunn%2Fxmascard2015" "/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/juliandunn/xmascard2015 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/juliandunn/xmascard2015
[INFO] finished tweaking git repo https://github.com/juliandunn/xmascard2015
[INFO] tweaked toml for git repo https://github.com/juliandunn/xmascard2015 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/juliandunn/xmascard2015 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--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" "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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5785a74caae14c396ae78372b3aa328f593629794e0cf7f494d70df62f13839e
[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" "5785a74caae14c396ae78372b3aa328f593629794e0cf7f494d70df62f13839e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5785a74caae14c396ae78372b3aa328f593629794e0cf7f494d70df62f13839e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5785a74caae14c396ae78372b3aa328f593629794e0cf7f494d70df62f13839e", kill_on_drop: false }`
[INFO] [stdout] 5785a74caae14c396ae78372b3aa328f593629794e0cf7f494d70df62f13839e
[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" "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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--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] b86319aa3f8e22be6cae90c3e5df65bd8018def1841cda32e8fb11111536d109
[INFO] running `Command { std: "docker" "start" "-a" "b86319aa3f8e22be6cae90c3e5df65bd8018def1841cda32e8fb11111536d109", kill_on_drop: false }`
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stderr]    Compiling time v0.1.33
[INFO] [stderr]    Compiling xmascard2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |                   { for z in 0..a-y-x+1 {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |                  print!(" ");  }  for z in
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |               } } for x in 0..w/5+1 { for z in
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:23:43
[INFO] [stdout]    |
[INFO] [stdout] 23 |               } } for x in 0..w/5+1 { for z in
[INFO] [stdout]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:24:44
[INFO] [stdout]    |
[INFO] [stdout] 24 |              0..w/3 {  print!(" ");  } for z in
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `Command { std: "docker" "inspect" "b86319aa3f8e22be6cae90c3e5df65bd8018def1841cda32e8fb11111536d109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b86319aa3f8e22be6cae90c3e5df65bd8018def1841cda32e8fb11111536d109", kill_on_drop: false }`
[INFO] [stdout] b86319aa3f8e22be6cae90c3e5df65bd8018def1841cda32e8fb11111536d109
[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" "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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0af001a57c823e14a95ccd5e04a18a4266b0b86eb0efa583d5aa2c54d4da0614
[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" "0af001a57c823e14a95ccd5e04a18a4266b0b86eb0efa583d5aa2c54d4da0614", kill_on_drop: false }`
[INFO] [stderr]    Compiling xmascard2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |                   { for z in 0..a-y-x+1 {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |                  print!(" ");  }  for z in
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |               } } for x in 0..w/5+1 { for z in
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:23:43
[INFO] [stdout]    |
[INFO] [stdout] 23 |               } } for x in 0..w/5+1 { for z in
[INFO] [stdout]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:24:44
[INFO] [stdout]    |
[INFO] [stdout] 24 |              0..w/3 {  print!(" ");  } for z in
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "0af001a57c823e14a95ccd5e04a18a4266b0b86eb0efa583d5aa2c54d4da0614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af001a57c823e14a95ccd5e04a18a4266b0b86eb0efa583d5aa2c54d4da0614", kill_on_drop: false }`
[INFO] [stdout] 0af001a57c823e14a95ccd5e04a18a4266b0b86eb0efa583d5aa2c54d4da0614
[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" "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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc78cf4ee61d61a2c017ecb28eacb017a13c523e947820f81ffc5bbb978edb57
[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" "dc78cf4ee61d61a2c017ecb28eacb017a13c523e947820f81ffc5bbb978edb57", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/main.rs:19:25
[INFO] [stderr]    |
[INFO] [stderr] 19 |                   { for z in 0..a-y-x+1 {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/main.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |                  print!(" ");  }  for z in
[INFO] [stderr]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:23:23
[INFO] [stderr]    |
[INFO] [stderr] 23 |               } } for x in 0..w/5+1 { for z in
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/main.rs:23:43
[INFO] [stderr]    |
[INFO] [stderr] 23 |               } } for x in 0..w/5+1 { for z in
[INFO] [stderr]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/main.rs:24:44
[INFO] [stderr]    |
[INFO] [stderr] 24 |              0..w/3 {  print!(" ");  } for z in
[INFO] [stderr]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: `xmascard2016` (bin "xmascard2016" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xmascard2016-450994cfe8a0921a)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc78cf4ee61d61a2c017ecb28eacb017a13c523e947820f81ffc5bbb978edb57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc78cf4ee61d61a2c017ecb28eacb017a13c523e947820f81ffc5bbb978edb57", kill_on_drop: false }`
[INFO] [stdout] dc78cf4ee61d61a2c017ecb28eacb017a13c523e947820f81ffc5bbb978edb57