[INFO] cloning repository https://github.com/tbk1988/ramseyrecursion [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tbk1988/ramseyrecursion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftbk1988%2Framseyrecursion", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftbk1988%2Framseyrecursion'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9df0cd2304ad7fc6035f9a4e00b24aef163f2b22 [INFO] checking tbk1988/ramseyrecursion against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftbk1988%2Framseyrecursion" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tbk1988/ramseyrecursion on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tbk1988/ramseyrecursion [INFO] finished tweaking git repo https://github.com/tbk1988/ramseyrecursion [INFO] tweaked toml for git repo https://github.com/tbk1988/ramseyrecursion written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/tbk1988/ramseyrecursion already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 09a03b504027b70ad0f420062f38d404a6fe4fa3ba2a71f5d878fd4a85f8d226 [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" "09a03b504027b70ad0f420062f38d404a6fe4fa3ba2a71f5d878fd4a85f8d226", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "09a03b504027b70ad0f420062f38d404a6fe4fa3ba2a71f5d878fd4a85f8d226", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09a03b504027b70ad0f420062f38d404a6fe4fa3ba2a71f5d878fd4a85f8d226", kill_on_drop: false }` [INFO] [stdout] 09a03b504027b70ad0f420062f38d404a6fe4fa3ba2a71f5d878fd4a85f8d226 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--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] a7a7dc50be2a5781a844a046b2f60bcab005186131034f56c3d64280baba2524 [INFO] running `Command { std: "docker" "start" "-a" "a7a7dc50be2a5781a844a046b2f60bcab005186131034f56c3d64280baba2524", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking ramsey_numbers v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:40:66 [INFO] [stdout] | [INFO] [stdout] 40 | Err(why) => panic!("Could not open {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:48:64 [INFO] [stdout] | [INFO] [stdout] 48 | Err(why) => panic!("Could not read line!: {}", why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:40:66 [INFO] [stdout] | [INFO] [stdout] 40 | Err(why) => panic!("Could not open {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:48:64 [INFO] [stdout] | [INFO] [stdout] 48 | Err(why) => panic!("Could not read line!: {}", why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | &r.insert((s,t),ints[2]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | &r.insert((s,t),ints[2]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [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 4.25s [INFO] running `Command { std: "docker" "inspect" "a7a7dc50be2a5781a844a046b2f60bcab005186131034f56c3d64280baba2524", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7a7dc50be2a5781a844a046b2f60bcab005186131034f56c3d64280baba2524", kill_on_drop: false }` [INFO] [stdout] a7a7dc50be2a5781a844a046b2f60bcab005186131034f56c3d64280baba2524