[INFO] cloning repository https://github.com/KnapSac/treeline
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KnapSac/treeline" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnapSac%2Ftreeline", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnapSac%2Ftreeline'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d385dc6a0a74c952732ba76289504604761e94ba
[INFO] testing KnapSac/treeline against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnapSac%2Ftreeline" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KnapSac/treeline on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KnapSac/treeline
[INFO] finished tweaking git repo https://github.com/KnapSac/treeline
[INFO] tweaked toml for git repo https://github.com/KnapSac/treeline written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/KnapSac/treeline already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99af49c58b8386558806a670e5ef88c9b7976772f10b3a84f3bd00eea885f93e
[INFO] running `Command { std: "docker" "start" "-a" "99af49c58b8386558806a670e5ef88c9b7976772f10b3a84f3bd00eea885f93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99af49c58b8386558806a670e5ef88c9b7976772f10b3a84f3bd00eea885f93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99af49c58b8386558806a670e5ef88c9b7976772f10b3a84f3bd00eea885f93e", kill_on_drop: false }`
[INFO] [stdout] 99af49c58b8386558806a670e5ef88c9b7976772f10b3a84f3bd00eea885f93e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0a8e43b0485c0481832cd25c14288cf16b9dbc1cf09f2bd962794b8d5e67ea7
[INFO] running `Command { std: "docker" "start" "-a" "a0a8e43b0485c0481832cd25c14288cf16b9dbc1cf09f2bd962794b8d5e67ea7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling crossterm v0.19.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling treeline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "a0a8e43b0485c0481832cd25c14288cf16b9dbc1cf09f2bd962794b8d5e67ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a8e43b0485c0481832cd25c14288cf16b9dbc1cf09f2bd962794b8d5e67ea7", kill_on_drop: false }`
[INFO] [stdout] a0a8e43b0485c0481832cd25c14288cf16b9dbc1cf09f2bd962794b8d5e67ea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e1a02cc43a3951833bdaf73e4afb6ee9d6dabacfab7c393349b0b72f946e946
[INFO] running `Command { std: "docker" "start" "-a" "5e1a02cc43a3951833bdaf73e4afb6ee9d6dabacfab7c393349b0b72f946e946", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling treeline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "5e1a02cc43a3951833bdaf73e4afb6ee9d6dabacfab7c393349b0b72f946e946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1a02cc43a3951833bdaf73e4afb6ee9d6dabacfab7c393349b0b72f946e946", kill_on_drop: false }`
[INFO] [stdout] 5e1a02cc43a3951833bdaf73e4afb6ee9d6dabacfab7c393349b0b72f946e946
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 67b1e4b907094f7e08d2c9393c8d5b332ccf26d38fcdee676c2233fb1a7c634a
[INFO] running `Command { std: "docker" "start" "-a" "67b1e4b907094f7e08d2c9393c8d5b332ccf26d38fcdee676c2233fb1a7c634a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treeline-19e0637760a2dc02)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::delete_after_prefix ... ok
[INFO] [stdout] test tests::delete_multiple ... ok
[INFO] [stdout] test tests::delete_single ... ok
[INFO] [stdout] test tests::delete_prefix ... ok
[INFO] [stdout] test tests::find_from_prefix ... ok
[INFO] [stdout] test tests::find_in_empty_trie ... ok
[INFO] [stdout] test tests::find_prefix ... ok
[INFO] [stdout] test tests::insert_single ... ok
[INFO] [stdout] test tests::insert_multiple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/main-5bf24aa7eea5cdf5)
[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 treeline
[INFO] [stderr] warning: lint `broken_intra_doc_links` has been renamed to `rustdoc::broken_intra_doc_links`
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:2:23
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![warn(missing_docs, broken_intra_doc_links)]
[INFO] [stderr]   |                       ^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::broken_intra_doc_links`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Trie (line 23) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Trie (line 23) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `trie`
[INFO] [stdout]  --> src/lib.rs:24:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use trie::Trie;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `trie`
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected function, found macro `println`
[INFO] [stdout]   --> src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     println("Found word: {}", word);
[INFO] [stdout]    |     ^^^^^^^ not a function
[INFO] [stdout]    |
[INFO] [stdout] help: use `!` to invoke the macro
[INFO] [stdout]    |
[INFO] [stdout] 13 |     println!("Found word: {}", word);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected function, found macro `println`
[INFO] [stdout]   --> src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     println("Found word: {}", word);
[INFO] [stdout]    |     ^^^^^^^ not a function
[INFO] [stdout]    |
[INFO] [stdout] help: use `!` to invoke the macro
[INFO] [stdout]    |
[INFO] [stdout] 18 |     println!("Found word: {}", word);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0423, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0423`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Trie (line 23)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "67b1e4b907094f7e08d2c9393c8d5b332ccf26d38fcdee676c2233fb1a7c634a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b1e4b907094f7e08d2c9393c8d5b332ccf26d38fcdee676c2233fb1a7c634a", kill_on_drop: false }`
[INFO] [stdout] 67b1e4b907094f7e08d2c9393c8d5b332ccf26d38fcdee676c2233fb1a7c634a