[INFO] crate safe-linked-list 0.3.0 is already in cache
[INFO] testing safe-linked-list-0.3.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate safe-linked-list 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate safe-linked-list 0.3.0 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 crates.io crate safe-linked-list 0.3.0
[INFO] finished tweaking crates.io crate safe-linked-list 0.3.0
[INFO] tweaked toml for crates.io crate safe-linked-list 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a5fa6447a43b299754bf89550192cbec9d045c26da011b265d615f15791b4e5b
[INFO] running `"docker" "start" "-a" "a5fa6447a43b299754bf89550192cbec9d045c26da011b265d615f15791b4e5b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling safe-linked-list v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "a5fa6447a43b299754bf89550192cbec9d045c26da011b265d615f15791b4e5b"`
[INFO] running `"docker" "rm" "-f" "a5fa6447a43b299754bf89550192cbec9d045c26da011b265d615f15791b4e5b"`
[INFO] [stdout] a5fa6447a43b299754bf89550192cbec9d045c26da011b265d615f15791b4e5b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e84da62c2e166b5b686532b6e2b46c264e2c81e587100f90d1fe272effaf9d99
[INFO] running `"docker" "start" "-a" "e84da62c2e166b5b686532b6e2b46c264e2c81e587100f90d1fe272effaf9d99"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling safe-linked-list v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `"docker" "inspect" "e84da62c2e166b5b686532b6e2b46c264e2c81e587100f90d1fe272effaf9d99"`
[INFO] running `"docker" "rm" "-f" "e84da62c2e166b5b686532b6e2b46c264e2c81e587100f90d1fe272effaf9d99"`
[INFO] [stdout] e84da62c2e166b5b686532b6e2b46c264e2c81e587100f90d1fe272effaf9d99
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0d964784675a4b78dea2382c5e50b05a6fccb3ee8fa209eca702094a64744883
[INFO] running `"docker" "start" "-a" "0d964784675a4b78dea2382c5e50b05a6fccb3ee8fa209eca702094a64744883"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/safe_linked_list-8a8b50036c4b5f30
[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] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration_test-1cae83d5b87748f7
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_append ... ok
[INFO] [stdout] test test_display ... ok
[INFO] [stdout] test test_contains ... ok
[INFO] [stdout] test test_clone ... ok
[INFO] [stdout] test test_eq ... ok
[INFO] [stdout] test test_from ... ok
[INFO] [stdout] test test_pop_back ... ok
[INFO] [stdout] test test_pop ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_list_of_string ... ok
[INFO] [stdout] test test_len ... ok
[INFO] [stdout] test test_pop_front ... ok
[INFO] [stdout] test test_push_front ... ok
[INFO] [stdout] test test_push_back ... ok
[INFO] [stdout] test test_push_pop ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_is_empty ... ok
[INFO] [stdout] test test_iter_2 ... ok
[INFO] [stdout] test test_push ... ok
[INFO] [stdout] test test_front_back ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests safe-linked-list
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/lib.rs - LinkedList<T>::new (line 36) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::clear (line 101) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::is_empty (line 231) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::fmt (line 462) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::len (line 218) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::fmt (line 481) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::back (line 134) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::eq (line 520) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::from (line 85) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::contains (line 336) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::into_iter (line 410) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::front (line 118) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::clone (line 500) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::append (line 151) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::iter (line 302) ... ok
[INFO] [stdout] test src/lib.rs - &'_ LinkedList<T>::into_iter (line 429) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push_back (line 52) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop_back (line 244) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop_front (line 273) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push_front (line 186) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0d964784675a4b78dea2382c5e50b05a6fccb3ee8fa209eca702094a64744883"`
[INFO] running `"docker" "rm" "-f" "0d964784675a4b78dea2382c5e50b05a6fccb3ee8fa209eca702094a64744883"`
[INFO] [stdout] 0d964784675a4b78dea2382c5e50b05a6fccb3ee8fa209eca702094a64744883