[INFO] fetching crate immutable 0.1.1...
[INFO] testing immutable-0.1.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate immutable 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate immutable 0.1.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate immutable 0.1.1
[INFO] finished tweaking crates.io crate immutable 0.1.1
[INFO] tweaked toml for crates.io crate immutable 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74bbc8d753eba314daa6949d15b2892468747f69c12cc8e2f5f53128b5a14ae2
[INFO] running `Command { std: "docker" "start" "-a" "74bbc8d753eba314daa6949d15b2892468747f69c12cc8e2f5f53128b5a14ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74bbc8d753eba314daa6949d15b2892468747f69c12cc8e2f5f53128b5a14ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bbc8d753eba314daa6949d15b2892468747f69c12cc8e2f5f53128b5a14ae2", kill_on_drop: false }`
[INFO] [stdout] 74bbc8d753eba314daa6949d15b2892468747f69c12cc8e2f5f53128b5a14ae2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9074217df071529dee918a051881842fad8c20d100b723e8ed34af44e5d19578
[INFO] running `Command { std: "docker" "start" "-a" "9074217df071529dee918a051881842fad8c20d100b723e8ed34af44e5d19578", kill_on_drop: false }`
[INFO] [stderr]    Compiling immutable v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::vec::IntoIter`
[INFO] [stdout]  --> src/list.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::vec::IntoIter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/list.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[macro_escape]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stdout]   --> src/tree/binary_tree.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[macro_escape]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "9074217df071529dee918a051881842fad8c20d100b723e8ed34af44e5d19578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9074217df071529dee918a051881842fad8c20d100b723e8ed34af44e5d19578", kill_on_drop: false }`
[INFO] [stdout] 9074217df071529dee918a051881842fad8c20d100b723e8ed34af44e5d19578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf55ed9475afbe33bf7d53c39f3554122f3dfd4464a9c5f013169e37187b2026
[INFO] running `Command { std: "docker" "start" "-a" "bf55ed9475afbe33bf7d53c39f3554122f3dfd4464a9c5f013169e37187b2026", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling immutable v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::vec::IntoIter`
[INFO] [stdout]  --> src/list.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::vec::IntoIter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/list.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[macro_escape]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stdout]   --> src/tree/binary_tree.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[macro_escape]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec::IntoIter`
[INFO] [stdout]  --> src/list.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::vec::IntoIter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/list.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[macro_escape]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stdout]   --> src/tree/binary_tree.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[macro_escape]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "bf55ed9475afbe33bf7d53c39f3554122f3dfd4464a9c5f013169e37187b2026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf55ed9475afbe33bf7d53c39f3554122f3dfd4464a9c5f013169e37187b2026", kill_on_drop: false }`
[INFO] [stdout] bf55ed9475afbe33bf7d53c39f3554122f3dfd4464a9c5f013169e37187b2026
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76cfa555dec421c6153445eea1872b965a380742726f3d98a8927ba8b070d0a6
[INFO] running `Command { std: "docker" "start" "-a" "76cfa555dec421c6153445eea1872b965a380742726f3d98a8927ba8b070d0a6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::vec::IntoIter`
[INFO] [stderr]  --> src/list.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::vec::IntoIter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stderr]  --> src/list.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_escape]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[macro_escape]` only has an effect on `extern crate` and modules
[INFO] [stderr]   --> src/tree/binary_tree.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[macro_escape]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `immutable` (lib) generated 3 warnings
[INFO] [stderr] warning: `immutable` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/immutable-7397453fc77108ea)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test list::list_append ... ok
[INFO] [stdout] test list::list_iterator ... ok
[INFO] [stdout] test list::list_tail ... ok
[INFO] [stdout] test tree::binary_tree::test_height ... ok
[INFO] [stdout] test tree::binary_tree::tree_macro ... ok
[INFO] [stdout] test tree::binary_tree::tree_iter ... ok
[INFO] [stdout] test list::list_macro ... ok
[INFO] [stdout] test list::list_head ... ok
[INFO] [stdout] test tree::binary_tree::tree_balance ... ok
[INFO] [stdout] test map::map_macro ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests immutable
[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" "76cfa555dec421c6153445eea1872b965a380742726f3d98a8927ba8b070d0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76cfa555dec421c6153445eea1872b965a380742726f3d98a8927ba8b070d0a6", kill_on_drop: false }`
[INFO] [stdout] 76cfa555dec421c6153445eea1872b965a380742726f3d98a8927ba8b070d0a6