[INFO] fetching crate mytrie 0.2.2...
[INFO] testing mytrie-0.2.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate mytrie 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mytrie 0.2.2
[INFO] finished tweaking crates.io crate mytrie 0.2.2
[INFO] tweaked toml for crates.io crate mytrie 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mytrie 0.2.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mytrie 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07b9e67bea33e03d741785d72ac3c2eab1f4a30beb139fe9014aa6b812da979f
[INFO] running `Command { std: "docker" "start" "-a" "07b9e67bea33e03d741785d72ac3c2eab1f4a30beb139fe9014aa6b812da979f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07b9e67bea33e03d741785d72ac3c2eab1f4a30beb139fe9014aa6b812da979f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b9e67bea33e03d741785d72ac3c2eab1f4a30beb139fe9014aa6b812da979f", kill_on_drop: false }`
[INFO] [stdout] 07b9e67bea33e03d741785d72ac3c2eab1f4a30beb139fe9014aa6b812da979f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82b70f6126c2976d820906cab3907b7196b55c3895724a4186e01be131a89e50
[INFO] running `Command { std: "docker" "start" "-a" "82b70f6126c2976d820906cab3907b7196b55c3895724a4186e01be131a89e50", kill_on_drop: false }`
[INFO] [stderr]    Compiling mytrie v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter_content(&self) -> ChildIter {
[INFO] [stdout]    |                         ^^^^^     --------- the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter_content(&self) -> ChildIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn new(node: &TrieNode) -> ChildIter {
[INFO] [stdout]    |                  ^^^^^^^^^     --------- the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn new(node: &TrieNode) -> ChildIter<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "82b70f6126c2976d820906cab3907b7196b55c3895724a4186e01be131a89e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82b70f6126c2976d820906cab3907b7196b55c3895724a4186e01be131a89e50", kill_on_drop: false }`
[INFO] [stdout] 82b70f6126c2976d820906cab3907b7196b55c3895724a4186e01be131a89e50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b02b0161bbf578f2b138c0824fe5c02ce5cf915620ac30de0c947bd72e07c928
[INFO] running `Command { std: "docker" "start" "-a" "b02b0161bbf578f2b138c0824fe5c02ce5cf915620ac30de0c947bd72e07c928", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter_content(&self) -> ChildIter {
[INFO] [stdout]    |                         ^^^^^     --------- the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter_content(&self) -> ChildIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn new(node: &TrieNode) -> ChildIter {
[INFO] [stdout]    |                  ^^^^^^^^^     --------- the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn new(node: &TrieNode) -> ChildIter<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling mytrie v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter_content(&self) -> ChildIter {
[INFO] [stdout]    |                         ^^^^^     --------- the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter_content(&self) -> ChildIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/node.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn new(node: &TrieNode) -> ChildIter {
[INFO] [stdout]    |                  ^^^^^^^^^     --------- the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn new(node: &TrieNode) -> ChildIter<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "b02b0161bbf578f2b138c0824fe5c02ce5cf915620ac30de0c947bd72e07c928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02b0161bbf578f2b138c0824fe5c02ce5cf915620ac30de0c947bd72e07c928", kill_on_drop: false }`
[INFO] [stdout] b02b0161bbf578f2b138c0824fe5c02ce5cf915620ac30de0c947bd72e07c928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cec73624b8aae0ae4ea0c18054b3e864f473beda2748e1a80e3cbf2306e8ef3d
[INFO] running `Command { std: "docker" "start" "-a" "cec73624b8aae0ae4ea0c18054b3e864f473beda2748e1a80e3cbf2306e8ef3d", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/node.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn iter_content(&self) -> ChildIter {
[INFO] [stderr]    |                         ^^^^^     --------- the same lifetime is hidden here
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn iter_content(&self) -> ChildIter<'_> {
[INFO] [stderr]    |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/node.rs:86:18
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn new(node: &TrieNode) -> ChildIter {
[INFO] [stderr]    |                  ^^^^^^^^^     --------- the same lifetime is hidden here
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn new(node: &TrieNode) -> ChildIter<'_> {
[INFO] [stderr]    |                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mytrie` (lib) generated 2 warnings (run `cargo fix --lib -p mytrie` to apply 2 suggestions)
[INFO] [stderr] warning: `mytrie` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mytrie-91df213da6ac79e9)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::remove_long ... ok
[INFO] [stdout] test tests::prefix_query ... ok
[INFO] [stdout] test tests::from_iter ... ok
[INFO] [stdout] test tests::remove_nonexistent - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mytrie
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/trie.rs - trie::Trie::remove (line 100) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie (line 12) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::is_empty (line 144) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::iter_suffixes (line 58) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::from (line 26) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::contains_prefix (line 114) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::iter_content (line 80) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::remove_suffixes (line 162) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::contains (line 129) ... ok
[INFO] [stdout] test src/trie.rs - trie::Trie::insert (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.72s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cec73624b8aae0ae4ea0c18054b3e864f473beda2748e1a80e3cbf2306e8ef3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec73624b8aae0ae4ea0c18054b3e864f473beda2748e1a80e3cbf2306e8ef3d", kill_on_drop: false }`
[INFO] [stdout] cec73624b8aae0ae4ea0c18054b3e864f473beda2748e1a80e3cbf2306e8ef3d