[INFO] fetching crate mytrie 0.1.0...
[INFO] testing mytrie-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate mytrie 0.1.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate mytrie 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mytrie 0.1.0
[INFO] finished tweaking crates.io crate mytrie 0.1.0
[INFO] tweaked toml for crates.io crate mytrie 0.1.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fabe6d01c0e981fc0473c946d63bd4c26106901b44385329955595f50ca2d01
[INFO] running `Command { std: "docker" "start" "-a" "5fabe6d01c0e981fc0473c946d63bd4c26106901b44385329955595f50ca2d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fabe6d01c0e981fc0473c946d63bd4c26106901b44385329955595f50ca2d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fabe6d01c0e981fc0473c946d63bd4c26106901b44385329955595f50ca2d01", kill_on_drop: false }`
[INFO] [stdout] 5fabe6d01c0e981fc0473c946d63bd4c26106901b44385329955595f50ca2d01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc418bbb85a6d64e0d9a2e11be463b83f00b506fa7cc3f0a443457fff03fce4
[INFO] running `Command { std: "docker" "start" "-a" "8dc418bbb85a6d64e0d9a2e11be463b83f00b506fa7cc3f0a443457fff03fce4", kill_on_drop: false }`
[INFO] [stderr]    Compiling mytrie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "8dc418bbb85a6d64e0d9a2e11be463b83f00b506fa7cc3f0a443457fff03fce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc418bbb85a6d64e0d9a2e11be463b83f00b506fa7cc3f0a443457fff03fce4", kill_on_drop: false }`
[INFO] [stdout] 8dc418bbb85a6d64e0d9a2e11be463b83f00b506fa7cc3f0a443457fff03fce4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61dc7473664e1b32afd96e2a24387092d0392347bad1cdf438857e210a7221b9
[INFO] running `Command { std: "docker" "start" "-a" "61dc7473664e1b32afd96e2a24387092d0392347bad1cdf438857e210a7221b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling mytrie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.81s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/mytrie-4196ba03265822e1)
[INFO] [stderr]   Executable tests/bench.rs (/opt/rustwide/target/debug/deps/bench-d2fa4da16e1118ad)
[INFO] running `Command { std: "docker" "inspect" "61dc7473664e1b32afd96e2a24387092d0392347bad1cdf438857e210a7221b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61dc7473664e1b32afd96e2a24387092d0392347bad1cdf438857e210a7221b9", kill_on_drop: false }`
[INFO] [stdout] 61dc7473664e1b32afd96e2a24387092d0392347bad1cdf438857e210a7221b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c2e3a92723c5c88b47490eb28b167780b225e3a05e4c84eb4f43cc77b22af63f
[INFO] running `Command { std: "docker" "start" "-a" "c2e3a92723c5c88b47490eb28b167780b225e3a05e4c84eb4f43cc77b22af63f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mytrie-4196ba03265822e1)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::prefix_query ... ok
[INFO] [stdout] test tests::remove_long ... ok
[INFO] [stdout] test tests::remove_nonexistent - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/bench.rs (/opt/rustwide/target/debug/deps/bench-d2fa4da16e1118ad)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test bench ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mytrie
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/trie.rs - trie::Trie (line 12) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::insert (line 42) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::is_empty (line 127) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::contains_prefix (line 111) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::remove (line 97) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::from (line 26) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::content_with_prefix (line 79) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::iter_suffixes (line 56) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2e3a92723c5c88b47490eb28b167780b225e3a05e4c84eb4f43cc77b22af63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e3a92723c5c88b47490eb28b167780b225e3a05e4c84eb4f43cc77b22af63f", kill_on_drop: false }`
[INFO] [stdout] c2e3a92723c5c88b47490eb28b167780b225e3a05e4c84eb4f43cc77b22af63f