[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 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuliandunn%2Fxmascard2015" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/juliandunn/xmascard2015 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", 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-6/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" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8adc36731059050554ecab6b1a08ab892f58453ced3a35e358a3baf50b651d29
[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" "8adc36731059050554ecab6b1a08ab892f58453ced3a35e358a3baf50b651d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8adc36731059050554ecab6b1a08ab892f58453ced3a35e358a3baf50b651d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8adc36731059050554ecab6b1a08ab892f58453ced3a35e358a3baf50b651d29", kill_on_drop: false }`
[INFO] [stdout] 8adc36731059050554ecab6b1a08ab892f58453ced3a35e358a3baf50b651d29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 825cc61cd3d747b256fb3fe44652dfd4610eccf0e4f6e5dde5f1a25afa7fc455
[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" "825cc61cd3d747b256fb3fe44652dfd4610eccf0e4f6e5dde5f1a25afa7fc455", 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 dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "825cc61cd3d747b256fb3fe44652dfd4610eccf0e4f6e5dde5f1a25afa7fc455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "825cc61cd3d747b256fb3fe44652dfd4610eccf0e4f6e5dde5f1a25afa7fc455", kill_on_drop: false }`
[INFO] [stdout] 825cc61cd3d747b256fb3fe44652dfd4610eccf0e4f6e5dde5f1a25afa7fc455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.45.2" "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] f7aefa522ea86b32c674249f1c8b16d93e12ac50dec9fcc9bc2a2d1685ea5844
[INFO] running `Command { std: "docker" "start" "-a" "f7aefa522ea86b32c674249f1c8b16d93e12ac50dec9fcc9bc2a2d1685ea5844", 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 0.62s
[INFO] running `Command { std: "docker" "inspect" "f7aefa522ea86b32c674249f1c8b16d93e12ac50dec9fcc9bc2a2d1685ea5844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7aefa522ea86b32c674249f1c8b16d93e12ac50dec9fcc9bc2a2d1685ea5844", kill_on_drop: false }`
[INFO] [stdout] f7aefa522ea86b32c674249f1c8b16d93e12ac50dec9fcc9bc2a2d1685ea5844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa8d01bc2fce6fde7f45b3a0edcb5facd3b8c0f99dd7b14e44fe19b5a4f5553c
[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" "aa8d01bc2fce6fde7f45b3a0edcb5facd3b8c0f99dd7b14e44fe19b5a4f5553c", 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: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/xmascard2016-8e438b7af10dbb51
[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" "aa8d01bc2fce6fde7f45b3a0edcb5facd3b8c0f99dd7b14e44fe19b5a4f5553c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa8d01bc2fce6fde7f45b3a0edcb5facd3b8c0f99dd7b14e44fe19b5a4f5553c", kill_on_drop: false }`
[INFO] [stdout] aa8d01bc2fce6fde7f45b3a0edcb5facd3b8c0f99dd7b14e44fe19b5a4f5553c