[INFO] fetching crate vec1 1.6.0...
[INFO] testing vec1-1.6.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate vec1 1.6.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate vec1 1.6.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vec1 1.6.0
[INFO] finished tweaking crates.io crate vec1 1.6.0
[INFO] tweaked toml for crates.io crate vec1 1.6.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a26ea3a5a103e24119ebd979463694af8df8851620de67a2e4649668f71c5c82
[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" "a26ea3a5a103e24119ebd979463694af8df8851620de67a2e4649668f71c5c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a26ea3a5a103e24119ebd979463694af8df8851620de67a2e4649668f71c5c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26ea3a5a103e24119ebd979463694af8df8851620de67a2e4649668f71c5c82", kill_on_drop: false }`
[INFO] [stdout] a26ea3a5a103e24119ebd979463694af8df8851620de67a2e4649668f71c5c82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5dd711b800dfd84852df4ce7f4cfea08c82cee7a0eed57a05414c4d282d128b
[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" "a5dd711b800dfd84852df4ce7f4cfea08c82cee7a0eed57a05414c4d282d128b", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec1 v1.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "a5dd711b800dfd84852df4ce7f4cfea08c82cee7a0eed57a05414c4d282d128b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5dd711b800dfd84852df4ce7f4cfea08c82cee7a0eed57a05414c4d282d128b", kill_on_drop: false }`
[INFO] [stdout] a5dd711b800dfd84852df4ce7f4cfea08c82cee7a0eed57a05414c4d282d128b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1eabcfeff031d034e36847a838d196965580fa8b597c75b15fda8580445e7aee
[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" "1eabcfeff031d034e36847a838d196965580fa8b597c75b15fda8580445e7aee", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec1 v1.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "1eabcfeff031d034e36847a838d196965580fa8b597c75b15fda8580445e7aee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eabcfeff031d034e36847a838d196965580fa8b597c75b15fda8580445e7aee", kill_on_drop: false }`
[INFO] [stdout] 1eabcfeff031d034e36847a838d196965580fa8b597c75b15fda8580445e7aee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1d5cd791fbce698ea6340d68985e284c3a34b7b73bc05a955f8a90fe3ae8edbc
[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" "1d5cd791fbce698ea6340d68985e284c3a34b7b73bc05a955f8a90fe3ae8edbc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 31 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vec1-ea55ad43cc4fbf63
[INFO] [stdout] test test::Vec1::impl_as_mut_slice ... ok
[INFO] [stdout] test test::Vec1::impl_as_mut_slice_self ... ok
[INFO] [stdout] test test::Vec1::impl_as_ref ... ok
[INFO] [stdout] test test::Vec1::impl_as_ref_self ... ok
[INFO] [stdout] test test::Vec1::impl_as_ref_vec ... ok
[INFO] [stdout] test test::Vec1::impl_borrow_mut_slice ... ok
[INFO] [stdout] test test::Vec1::impl_borrow_slice ... ok
[INFO] [stdout] test test::Vec1::provided_all_ro_functions ... ok
[INFO] [stdout] test test::Vec1::impl_into_iter_on_ref ... ok
[INFO] [stdout] test test::Vec1::provides_some_safe_mut_functions ... ok
[INFO] [stdout] test test::Vec1::impl_extend_ref_copy ... ok
[INFO] [stdout] test test::Vec1::has_a_try_from_impl ... ok
[INFO] [stdout] test test::Vec1::deriving_default_works ... ok
[INFO] [stdout] test test::Vec1::has_a_try_from_boxed_slice ... ok
[INFO] [stdout] test test::Size0Error::implements_std_error ... ok
[INFO] [stdout] test test::Vec1::deref_slice ... ok
[INFO] [stdout] test test::Vec1::impl_index ... ok
[INFO] [stdout] test test::Vec1::impl_into_iter_on_ref_mut ... ok
[INFO] [stdout] test test::Vec1::impl_into_iter ... ok
[INFO] [stdout] test test::Vec1::impl_index_mut ... ok
[INFO] [stdout] test test::Vec1::impl_extend ... ok
[INFO] [stdout] test test::Vec1::deref_slice_mut ... ok
[INFO] [stdout] test test::Vec1::splice_with_full_range_and_no_replace_values_fails ... ok
[INFO] [stdout] test test::Vec1::splice_with_non_full_range_but_empty_iter_works ... ok
[INFO] [stdout] test test::Vec1::with_capacity ... ok
[INFO] [stdout] test test::Vec1::splice_with_full_range_but_non_empty_iter_works ... ok
[INFO] [stdout] test test::Vec1::provides_other_methos_in_failible_form ... ok
[INFO] [stdout] test test::Vec1::try_resize ... ok
[INFO] [stdout] test test::Vec1::non_slice_indexing_works ... ok
[INFO] [stdout] test test::Vec1::try_split_of ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/issue_13_tailing_comman-5df9088ed305fba4
[INFO] [stdout] test test::range_covers_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test allow_trailing_comma_in_vec_macro ... ok
[INFO] [stdout] test allow_no_trailing_comma_in_vec_macro ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vec1
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Vec1<T>::try_from_vec (line 180) ... ok
[INFO] [stdout] test src/lib.rs - Vec1<T>::mapped (line 217) ... ok
[INFO] [stdout] test src/lib.rs - Vec1<T>::split_off_first (line 524) ... ok
[INFO] [stdout] test src/lib.rs - Vec1<T>::try_mapped (line 280) ... ok
[INFO] [stdout] test src/lib.rs - Vec1<T>::split_off_last (line 540) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - Vec1<T>::try_from_vec (line 170) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1d5cd791fbce698ea6340d68985e284c3a34b7b73bc05a955f8a90fe3ae8edbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d5cd791fbce698ea6340d68985e284c3a34b7b73bc05a955f8a90fe3ae8edbc", kill_on_drop: false }`
[INFO] [stdout] 1d5cd791fbce698ea6340d68985e284c3a34b7b73bc05a955f8a90fe3ae8edbc