[INFO] fetching crate test5 0.1.3...
[INFO] testing test5-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate test5 0.1.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate test5 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test5 0.1.3
[INFO] finished tweaking crates.io crate test5 0.1.3
[INFO] tweaked toml for crates.io crate test5 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f32aa492ed8ef0bd4ace004071fad81fd14675332da93f9a64752c2c4a6cf5a6
[INFO] running `Command { std: "docker" "start" "-a" "f32aa492ed8ef0bd4ace004071fad81fd14675332da93f9a64752c2c4a6cf5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f32aa492ed8ef0bd4ace004071fad81fd14675332da93f9a64752c2c4a6cf5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32aa492ed8ef0bd4ace004071fad81fd14675332da93f9a64752c2c4a6cf5a6", kill_on_drop: false }`
[INFO] [stdout] f32aa492ed8ef0bd4ace004071fad81fd14675332da93f9a64752c2c4a6cf5a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 146fc105d0bfae52b88eeebcbf2cc60b36f0433299a021cd335ab9eb07f9a533
[INFO] running `Command { std: "docker" "start" "-a" "146fc105d0bfae52b88eeebcbf2cc60b36f0433299a021cd335ab9eb07f9a533", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling test5 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::BTreeSet`, `iter::FromIterator`
[INFO] [stdout]  --> src/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeSet, iter::FromIterator};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "146fc105d0bfae52b88eeebcbf2cc60b36f0433299a021cd335ab9eb07f9a533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146fc105d0bfae52b88eeebcbf2cc60b36f0433299a021cd335ab9eb07f9a533", kill_on_drop: false }`
[INFO] [stdout] 146fc105d0bfae52b88eeebcbf2cc60b36f0433299a021cd335ab9eb07f9a533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b05645f2bc85c3745615e04131084301f574b02b648e92d822e849d5e1362a2c
[INFO] running `Command { std: "docker" "start" "-a" "b05645f2bc85c3745615e04131084301f574b02b648e92d822e849d5e1362a2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling test5 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::BTreeSet`, `iter::FromIterator`
[INFO] [stdout]  --> src/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeSet, iter::FromIterator};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::BTreeSet`, `iter::FromIterator`
[INFO] [stdout]  --> src/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeSet, iter::FromIterator};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "b05645f2bc85c3745615e04131084301f574b02b648e92d822e849d5e1362a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05645f2bc85c3745615e04131084301f574b02b648e92d822e849d5e1362a2c", kill_on_drop: false }`
[INFO] [stdout] b05645f2bc85c3745615e04131084301f574b02b648e92d822e849d5e1362a2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4dbf2f060c38626f2428a9dd80f20976f5dac5e4fbfb3ffc26c83eec096a642a
[INFO] running `Command { std: "docker" "start" "-a" "4dbf2f060c38626f2428a9dd80f20976f5dac5e4fbfb3ffc26c83eec096a642a", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `collections::BTreeSet`, `iter::FromIterator`
[INFO] [stderr]  --> src/lib.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{collections::BTreeSet, iter::FromIterator};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `test5` (lib) generated 1 warning
[INFO] [stderr] warning: `test5` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/test5-4d063f860ff71121)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests test5
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4dbf2f060c38626f2428a9dd80f20976f5dac5e4fbfb3ffc26c83eec096a642a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dbf2f060c38626f2428a9dd80f20976f5dac5e4fbfb3ffc26c83eec096a642a", kill_on_drop: false }`
[INFO] [stdout] 4dbf2f060c38626f2428a9dd80f20976f5dac5e4fbfb3ffc26c83eec096a642a