[INFO] updating cached repository https://github.com/ParkinWu/search_tree [INFO] running `"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"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1150f31d3a8e45ad85e0cf6389803ddb6d371521 [INFO] testing ParkinWu/search_tree against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParkinWu%2Fsearch_tree" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ParkinWu/search_tree on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ParkinWu/search_tree [INFO] finished tweaking git repo https://github.com/ParkinWu/search_tree [INFO] tweaked toml for git repo https://github.com/ParkinWu/search_tree written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/ParkinWu/search_tree already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /workspace/builds/worker-1/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 [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 52a6f736316b97c8d6212c1c0a2446f703a0baa08da8e7c4b55ca8bf9f4e8658 [INFO] running `"docker" "start" "-a" "52a6f736316b97c8d6212c1c0a2446f703a0baa08da8e7c4b55ca8bf9f4e8658"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling syn v1.0.30 [INFO] [stderr] Compiling standback v0.2.9 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Compiling time-macros v0.1.0 [INFO] [stderr] Compiling time v0.2.16 [INFO] [stderr] Compiling binary_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `Formatter` [INFO] [stderr] --> src/main.rs:4:24 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt::{ Debug, Formatter}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `take_next` [INFO] [stderr] --> src/main.rs:58:8 [INFO] [stderr] | [INFO] [stderr] 58 | fn take_next(&mut self) -> Option> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop_back` [INFO] [stderr] --> src/main.rs:90:8 [INFO] [stderr] | [INFO] [stderr] 90 | fn pop_back(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `push_front` [INFO] [stderr] --> src/main.rs:103:8 [INFO] [stderr] | [INFO] [stderr] 103 | fn push_front(&mut self, elem: T) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop_front` [INFO] [stderr] --> src/main.rs:113:8 [INFO] [stderr] | [INFO] [stderr] 113 | fn pop_front(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/main.rs:127:8 [INFO] [stderr] | [INFO] [stderr] 127 | fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `tail` [INFO] [stderr] --> src/main.rs:161:5 [INFO] [stderr] | [INFO] [stderr] 161 | tail: &'a Raw, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 18.90s [INFO] running `"docker" "inspect" "52a6f736316b97c8d6212c1c0a2446f703a0baa08da8e7c4b55ca8bf9f4e8658"` [INFO] running `"docker" "rm" "-f" "52a6f736316b97c8d6212c1c0a2446f703a0baa08da8e7c4b55ca8bf9f4e8658"` [INFO] [stdout] 52a6f736316b97c8d6212c1c0a2446f703a0baa08da8e7c4b55ca8bf9f4e8658 [INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stdout] 9b02db4dc835a6a0c5eadcc8f1730fd88ed3749c0d7878844c0ef941f3b9b98b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "9b02db4dc835a6a0c5eadcc8f1730fd88ed3749c0d7878844c0ef941f3b9b98b"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling binary_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `Formatter` [INFO] [stderr] --> src/main.rs:4:24 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt::{ Debug, Formatter}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/main.rs:127:8 [INFO] [stderr] | [INFO] [stderr] 127 | fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `tail` [INFO] [stderr] --> src/main.rs:161:5 [INFO] [stderr] | [INFO] [stderr] 161 | tail: &'a Raw, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.46s [INFO] running `"docker" "inspect" "9b02db4dc835a6a0c5eadcc8f1730fd88ed3749c0d7878844c0ef941f3b9b98b"` [INFO] running `"docker" "rm" "-f" "9b02db4dc835a6a0c5eadcc8f1730fd88ed3749c0d7878844c0ef941f3b9b98b"` [INFO] [stdout] 9b02db4dc835a6a0c5eadcc8f1730fd88ed3749c0d7878844c0ef941f3b9b98b [INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stdout] 6125093aa9ac3b1f21b32453162e962183bb464769ed2678d58a112896d4bf01 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "6125093aa9ac3b1f21b32453162e962183bb464769ed2678d58a112896d4bf01"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `Formatter` [INFO] [stderr] --> src/main.rs:4:24 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fmt::{ Debug, Formatter}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/main.rs:127:8 [INFO] [stderr] | [INFO] [stderr] 127 | fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `tail` [INFO] [stderr] --> src/main.rs:161:5 [INFO] [stderr] | [INFO] [stderr] 161 | tail: &'a Raw, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/binary_tree-7a396e1acab82939 [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test push_front_back_test ... ok [INFO] [stdout] test push_front_test ... ok [INFO] [stdout] test pop_front_test ... ok [INFO] [stdout] test push_pop_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "6125093aa9ac3b1f21b32453162e962183bb464769ed2678d58a112896d4bf01"` [INFO] running `"docker" "rm" "-f" "6125093aa9ac3b1f21b32453162e962183bb464769ed2678d58a112896d4bf01"` [INFO] [stdout] 6125093aa9ac3b1f21b32453162e962183bb464769ed2678d58a112896d4bf01