[INFO] fetching crate prefix-tree 0.5.0...
[INFO] testing prefix-tree-0.5.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate prefix-tree 0.5.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate prefix-tree 0.5.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prefix-tree 0.5.0
[INFO] finished tweaking crates.io crate prefix-tree 0.5.0
[INFO] tweaked toml for crates.io crate prefix-tree 0.5.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48de95d3cbf76c60cacdd1736119e198176908785013f3bb7b6f9bc25fce1310
[INFO] running `Command { std: "docker" "start" "-a" "48de95d3cbf76c60cacdd1736119e198176908785013f3bb7b6f9bc25fce1310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48de95d3cbf76c60cacdd1736119e198176908785013f3bb7b6f9bc25fce1310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48de95d3cbf76c60cacdd1736119e198176908785013f3bb7b6f9bc25fce1310", kill_on_drop: false }`
[INFO] [stdout] 48de95d3cbf76c60cacdd1736119e198176908785013f3bb7b6f9bc25fce1310
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad48b39c2ff1dd4ad4f8b3161670e7a7a66c4247b324978d75a770a11593f710
[INFO] running `Command { std: "docker" "start" "-a" "ad48b39c2ff1dd4ad4f8b3161670e7a7a66c4247b324978d75a770a11593f710", kill_on_drop: false }`
[INFO] [stderr]    Compiling prefix-tree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "ad48b39c2ff1dd4ad4f8b3161670e7a7a66c4247b324978d75a770a11593f710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad48b39c2ff1dd4ad4f8b3161670e7a7a66c4247b324978d75a770a11593f710", kill_on_drop: false }`
[INFO] [stdout] ad48b39c2ff1dd4ad4f8b3161670e7a7a66c4247b324978d75a770a11593f710
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 594671f609132bc9c34619f60de63300e32358edc26abdc327d7ff61c3c56d9b
[INFO] running `Command { std: "docker" "start" "-a" "594671f609132bc9c34619f60de63300e32358edc26abdc327d7ff61c3c56d9b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling prefix-tree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.48s
[INFO] running `Command { std: "docker" "inspect" "594671f609132bc9c34619f60de63300e32358edc26abdc327d7ff61c3c56d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "594671f609132bc9c34619f60de63300e32358edc26abdc327d7ff61c3c56d9b", kill_on_drop: false }`
[INFO] [stdout] 594671f609132bc9c34619f60de63300e32358edc26abdc327d7ff61c3c56d9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9dce65dfaac6c3b91281501de27f88f2b87d3c52f85e7adf19b0199c70da96c
[INFO] running `Command { std: "docker" "start" "-a" "a9dce65dfaac6c3b91281501de27f88f2b87d3c52f85e7adf19b0199c70da96c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prefix_tree-13572ce0e4cde5ea)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tree::tests::test_common_prefix ... ok
[INFO] [stdout] test tree::tests::test_find ... ok
[INFO] [stdout] test tree::tests::test_find_mut ... ok
[INFO] [stdout] test tree::tests::test_insert ... ok
[INFO] [stdout] test tree::tests::test_remove ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefix-tree
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::new (line 18) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::new (line 16) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::is_empty (line 154) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::clear (line 31) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::len (line 121) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::len (line 170) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::contains (line 47) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::insert (line 66) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::clear (line 53) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::remove (line 86) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::get (line 69) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::insert (line 109) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::remove (line 135) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::values (line 230) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::is_empty (line 105) ... ok
[INFO] [stdout] test src/set.rs - set::PrefixSet<T>::iter (line 137) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::iter (line 186) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::get_mut (line 88) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::contains_key (line 34) ... ok
[INFO] [stdout] test src/map.rs - map::PrefixMap<K,V>::keys (line 213) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9dce65dfaac6c3b91281501de27f88f2b87d3c52f85e7adf19b0199c70da96c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9dce65dfaac6c3b91281501de27f88f2b87d3c52f85e7adf19b0199c70da96c", kill_on_drop: false }`
[INFO] [stdout] a9dce65dfaac6c3b91281501de27f88f2b87d3c52f85e7adf19b0199c70da96c