[INFO] fetching crate qstring 0.7.2...
[INFO] testing qstring-0.7.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate qstring 0.7.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate qstring 0.7.2 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 qstring 0.7.2
[INFO] finished tweaking crates.io crate qstring 0.7.2
[INFO] tweaked toml for crates.io crate qstring 0.7.2 written to /workspace/builds/worker-8/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c6a4d4da34fc016fceda2f02d3364da6ae0733f902f3c274d963eed058775e5f
[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" "c6a4d4da34fc016fceda2f02d3364da6ae0733f902f3c274d963eed058775e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6a4d4da34fc016fceda2f02d3364da6ae0733f902f3c274d963eed058775e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a4d4da34fc016fceda2f02d3364da6ae0733f902f3c274d963eed058775e5f", kill_on_drop: false }`
[INFO] [stdout] c6a4d4da34fc016fceda2f02d3364da6ae0733f902f3c274d963eed058775e5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 66f54a8972497ed949dafd5416b8a87707f5731e066fe03afb5218d15779887b
[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" "66f54a8972497ed949dafd5416b8a87707f5731e066fe03afb5218d15779887b", kill_on_drop: false }`
[INFO] [stderr]    Compiling qstring v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "66f54a8972497ed949dafd5416b8a87707f5731e066fe03afb5218d15779887b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f54a8972497ed949dafd5416b8a87707f5731e066fe03afb5218d15779887b", kill_on_drop: false }`
[INFO] [stdout] 66f54a8972497ed949dafd5416b8a87707f5731e066fe03afb5218d15779887b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 43c5d4d6a7cda5c998811e45892d2a327b01812e392f72d53b0376b6e29cd6fa
[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" "43c5d4d6a7cda5c998811e45892d2a327b01812e392f72d53b0376b6e29cd6fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling qstring v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "43c5d4d6a7cda5c998811e45892d2a327b01812e392f72d53b0376b6e29cd6fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c5d4d6a7cda5c998811e45892d2a327b01812e392f72d53b0376b6e29cd6fa", kill_on_drop: false }`
[INFO] [stdout] 43c5d4d6a7cda5c998811e45892d2a327b01812e392f72d53b0376b6e29cd6fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 8151e02203c7e2ce7db69291b7fa14ad90eb731b75857ec001c04225c978a9ab
[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" "8151e02203c7e2ce7db69291b7fa14ad90eb731b75857ec001c04225c978a9ab", 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/qstring-2f58f0b857768c06
[INFO] [stdout] test tests::a_is_6 ... ok
[INFO] [stdout] test tests::a_is_7 ... ok
[INFO] [stdout] test tests::a_is_1 ... ok
[INFO] [stdout] test tests::a_is_8 ... ok
[INFO] [stdout] test tests::a_is_5 ... ok
[INFO] [stdout] test tests::a_is_9 ... ok
[INFO] [stdout] test tests::a_is_eq_1 ... ok
[INFO] [stdout] test tests::ac_is_1 ... ok
[INFO] [stdout] test tests::ac_is_2 ... ok
[INFO] [stdout] test tests::ac_is_3 ... ok
[INFO] [stdout] test tests::ac_is_4 ... ok
[INFO] [stdout] test tests::a_is_4 ... ok
[INFO] [stdout] test tests::empty_3 ... ok
[INFO] [stdout] test tests::empty_4 ... ok
[INFO] [stdout] test tests::empty_5 ... ok
[INFO] [stdout] test tests::empty_6 ... ok
[INFO] [stdout] test tests::empty_2 ... ok
[INFO] [stdout] test tests::encode_amp ... ok
[INFO] [stdout] test tests::empty_1 ... ok
[INFO] [stdout] test tests::is_q_1 ... ok
[INFO] [stdout] test tests::amps_in_a_row ... ok
[INFO] [stdout] test tests::a_is_3 ... ok
[INFO] [stdout] test tests::ac_is_7 ... ok
[INFO] [stdout] test tests::is_q_2 ... ok
[INFO] [stdout] test tests::is_q_3 ... ok
[INFO] [stdout] test tests::is_q_4 ... ok
[INFO] [stdout] test tests::a_is_10 ... ok
[INFO] [stdout] test tests::ac_is_5 ... ok
[INFO] [stdout] test tests::a_is_11 ... ok
[INFO] [stdout] test tests::ac_is_6 ... ok
[INFO] [stderr]    Doc-tests qstring
[INFO] [stdout] test tests::a_is_2 ... 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 11 tests
[INFO] [stdout] test src/lib.rs - QString (line 20) ... ok
[INFO] [stdout] test src/lib.rs - QString::has (line 78) ... ok
[INFO] [stdout] test src/lib.rs - QString::add_pair (line 158) ... ok
[INFO] [stdout] test src/lib.rs - QString (line 28) ... ok
[INFO] [stdout] test src/lib.rs - QString::to_pairs (line 133) ... ok
[INFO] [stdout] test src/lib.rs - QString (line 12) ... ok
[INFO] [stdout] test src/lib.rs - QString::get (line 91) ... ok
[INFO] [stdout] test src/lib.rs - QString::add_str (line 176) ... ok
[INFO] [stdout] test src/lib.rs - QString::into_pairs (line 108) ... ok
[INFO] [stdout] test src/lib.rs - QString::new (line 56) ... ok
[INFO] [stdout] test src/lib.rs - QString::from (line 205) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8151e02203c7e2ce7db69291b7fa14ad90eb731b75857ec001c04225c978a9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8151e02203c7e2ce7db69291b7fa14ad90eb731b75857ec001c04225c978a9ab", kill_on_drop: false }`
[INFO] [stdout] 8151e02203c7e2ce7db69291b7fa14ad90eb731b75857ec001c04225c978a9ab