[INFO] cloning repository https://github.com/downtimes/synacor-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/downtimes/synacor-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowntimes%2Fsynacor-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowntimes%2Fsynacor-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f26341ae7355e02569588a5fd8122025db1fec88
[INFO] checking downtimes/synacor-challenge against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowntimes%2Fsynacor-challenge" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/downtimes/synacor-challenge on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/downtimes/synacor-challenge
[INFO] finished tweaking git repo https://github.com/downtimes/synacor-challenge
[INFO] tweaked toml for git repo https://github.com/downtimes/synacor-challenge written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/downtimes/synacor-challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", 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] 368da70f8d71b9a43136950ee07b05a8fda14a08626e790c9551688dd8c77080
[INFO] running `Command { std: "docker" "start" "-a" "368da70f8d71b9a43136950ee07b05a8fda14a08626e790c9551688dd8c77080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "368da70f8d71b9a43136950ee07b05a8fda14a08626e790c9551688dd8c77080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368da70f8d71b9a43136950ee07b05a8fda14a08626e790c9551688dd8c77080", kill_on_drop: false }`
[INFO] [stdout] 368da70f8d71b9a43136950ee07b05a8fda14a08626e790c9551688dd8c77080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9c4453ec4a9063afa56af482e9346dda188f12e205b79794643ca2ae657b941
[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" "e9c4453ec4a9063afa56af482e9346dda188f12e205b79794643ca2ae657b941", kill_on_drop: false }`
[INFO] [stderr]     Checking synacor-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:232:18
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 0...u15::MAX => WmWord::Constant(U15::from(*word)),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:236:25
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 u15::MAX...MAX_WM_WORD => WmWord::Register((word % (u15::MAX + 1)) as usize),
[INFO] [stdout]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:232:18
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 0...u15::MAX => WmWord::Constant(U15::from(*word)),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:236:25
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 u15::MAX...MAX_WM_WORD => WmWord::Register((word % (u15::MAX + 1)) as usize),
[INFO] [stdout]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns overlap on their endpoints
[INFO] [stdout]    --> src/main.rs:236:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 0...u15::MAX => WmWord::Constant(U15::from(*word)),
[INFO] [stdout]     |                 ------------ this range overlaps on `32767_u16`...
[INFO] [stdout] ...
[INFO] [stdout] 236 |                 u15::MAX...MAX_WM_WORD => WmWord::Register((word % (u15::MAX + 1)) as usize),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ ... with this range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(overlapping_range_endpoints)]` on by default
[INFO] [stdout]     = note: you likely meant to write mutually exclusive ranges
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns overlap on their endpoints
[INFO] [stdout]    --> src/main.rs:236:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 0...u15::MAX => WmWord::Constant(U15::from(*word)),
[INFO] [stdout]     |                 ------------ this range overlaps on `32767_u16`...
[INFO] [stdout] ...
[INFO] [stdout] 236 |                 u15::MAX...MAX_WM_WORD => WmWord::Register((word % (u15::MAX + 1)) as usize),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ ... with this range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(overlapping_range_endpoints)]` on by default
[INFO] [stdout]     = note: you likely meant to write mutually exclusive ranges
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "e9c4453ec4a9063afa56af482e9346dda188f12e205b79794643ca2ae657b941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c4453ec4a9063afa56af482e9346dda188f12e205b79794643ca2ae657b941", kill_on_drop: false }`
[INFO] [stdout] e9c4453ec4a9063afa56af482e9346dda188f12e205b79794643ca2ae657b941