[INFO] crate safe-linked-list 0.3.0 is already in cache
[INFO] testing safe-linked-list-0.3.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate safe-linked-list 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate safe-linked-list 0.3.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c687538353ea324d92401e0048abb90a52133affb7fdf99716d7ac0adf6def5d
[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" "c687538353ea324d92401e0048abb90a52133affb7fdf99716d7ac0adf6def5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c687538353ea324d92401e0048abb90a52133affb7fdf99716d7ac0adf6def5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c687538353ea324d92401e0048abb90a52133affb7fdf99716d7ac0adf6def5d", kill_on_drop: false }`
[INFO] [stdout] c687538353ea324d92401e0048abb90a52133affb7fdf99716d7ac0adf6def5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d69b8a00321e3660cf529b3ff4de37d223376c419423c88012ffb94dc1ab6ac
[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" "8d69b8a00321e3660cf529b3ff4de37d223376c419423c88012ffb94dc1ab6ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-linked-list v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "8d69b8a00321e3660cf529b3ff4de37d223376c419423c88012ffb94dc1ab6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d69b8a00321e3660cf529b3ff4de37d223376c419423c88012ffb94dc1ab6ac", kill_on_drop: false }`
[INFO] [stdout] 8d69b8a00321e3660cf529b3ff4de37d223376c419423c88012ffb94dc1ab6ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6a66749c1f788327055e115020acfd00b7b25136430154c94fcbfd239e74b06
[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" "d6a66749c1f788327055e115020acfd00b7b25136430154c94fcbfd239e74b06", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-linked-list v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "d6a66749c1f788327055e115020acfd00b7b25136430154c94fcbfd239e74b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6a66749c1f788327055e115020acfd00b7b25136430154c94fcbfd239e74b06", kill_on_drop: false }`
[INFO] [stdout] d6a66749c1f788327055e115020acfd00b7b25136430154c94fcbfd239e74b06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1cd7f5e0167b47ed9f906ccd92a418bfe88ebcf569ac2dcd2e0dcb4d6a6ac3ad
[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" "1cd7f5e0167b47ed9f906ccd92a418bfe88ebcf569ac2dcd2e0dcb4d6a6ac3ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/safe_linked_list-c919494d3eb90825
[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] [stderr]      Running /opt/rustwide/target/debug/deps/integration_test-05faec500c1f22e7
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_append ... ok
[INFO] [stdout] test test_clone ... ok
[INFO] [stdout] test test_contains ... ok
[INFO] [stdout] test test_display ... ok
[INFO] [stdout] test test_front_back ... ok
[INFO] [stdout] test test_eq ... ok
[INFO] [stdout] test test_from ... ok
[INFO] [stdout] test test_is_empty ... ok
[INFO] [stdout] test test_iter_2 ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_list_of_string ... ok
[INFO] [stdout] test test_len ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_pop ... ok
[INFO] [stdout] test test_pop_back ... ok
[INFO] [stdout] test test_push ... ok
[INFO] [stdout] test test_push_back ... ok
[INFO] [stdout] test test_push_front ... ok
[INFO] [stdout] test test_pop_front ... ok
[INFO] [stdout] test test_push_pop ... 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>::clear (line 101) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::from (line 85) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::len (line 218) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::append (line 151) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::eq (line 520) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::fmt (line 481) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::new (line 36) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::clone (line 500) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::contains (line 336) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::is_empty (line 231) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::front (line 118) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::back (line 134) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::fmt (line 462) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::into_iter (line 410) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::iter (line 302) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop_front (line 273) ... ok
[INFO] [stdout] test src/lib.rs - &'_ LinkedList<T>::into_iter (line 429) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop_back (line 244) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push_front (line 186) ... ok
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push_back (line 52) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1cd7f5e0167b47ed9f906ccd92a418bfe88ebcf569ac2dcd2e0dcb4d6a6ac3ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd7f5e0167b47ed9f906ccd92a418bfe88ebcf569ac2dcd2e0dcb4d6a6ac3ad", kill_on_drop: false }`
[INFO] [stdout] 1cd7f5e0167b47ed9f906ccd92a418bfe88ebcf569ac2dcd2e0dcb4d6a6ac3ad