[INFO] fetching crate iodyn 0.2.1...
[INFO] testing iodyn-0.2.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate iodyn 0.2.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate iodyn 0.2.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iodyn 0.2.1
[INFO] finished tweaking crates.io crate iodyn 0.2.1
[INFO] tweaked toml for crates.io crate iodyn 0.2.1 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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" "+62efba8a050c64249dab942951bb28f710208bc8" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf3fba858300233f015d3c45589e404bf91808ad8c161a5417012e4db68b7d55
[INFO] running `Command { std: "docker" "start" "-a" "cf3fba858300233f015d3c45589e404bf91808ad8c161a5417012e4db68b7d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf3fba858300233f015d3c45589e404bf91808ad8c161a5417012e4db68b7d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3fba858300233f015d3c45589e404bf91808ad8c161a5417012e4db68b7d55", kill_on_drop: false }`
[INFO] [stdout] cf3fba858300233f015d3c45589e404bf91808ad8c161a5417012e4db68b7d55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48b2795af39ce8137377dc47003a83cd84c97e39de7cc72bdb0e0e1ab924b883
[INFO] running `Command { std: "docker" "start" "-a" "48b2795af39ce8137377dc47003a83cd84c97e39de7cc72bdb0e0e1ab924b883", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling adapton v0.3.31
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling iodyn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/memo.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn memo_from(&T) -> Self;
[INFO] [stdout]    |                  ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.94s
[INFO] running `Command { std: "docker" "inspect" "48b2795af39ce8137377dc47003a83cd84c97e39de7cc72bdb0e0e1ab924b883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b2795af39ce8137377dc47003a83cd84c97e39de7cc72bdb0e0e1ab924b883", kill_on_drop: false }`
[INFO] [stdout] 48b2795af39ce8137377dc47003a83cd84c97e39de7cc72bdb0e0e1ab924b883
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76110c18b2d32899ae7e1fff3721ea588460b45dfa698f2012083faf42337633
[INFO] running `Command { std: "docker" "start" "-a" "76110c18b2d32899ae7e1fff3721ea588460b45dfa698f2012083faf42337633", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling iodyn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/memo.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn memo_from(&T) -> Self;
[INFO] [stdout]    |                  ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/memo.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn memo_from(&T) -> Self;
[INFO] [stdout]    |                  ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.61s
[INFO] running `Command { std: "docker" "inspect" "76110c18b2d32899ae7e1fff3721ea588460b45dfa698f2012083faf42337633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76110c18b2d32899ae7e1fff3721ea588460b45dfa698f2012083faf42337633", kill_on_drop: false }`
[INFO] [stdout] 76110c18b2d32899ae7e1fff3721ea588460b45dfa698f2012083faf42337633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f908ad4438a9882ddb5b656cc85aea4b393806a20abc7b1ca393d330a7adbb65
[INFO] running `Command { std: "docker" "start" "-a" "f908ad4438a9882ddb5b656cc85aea4b393806a20abc7b1ca393d330a7adbb65", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/memo.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn memo_from(&T) -> Self;
[INFO] [stderr]    |                  ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: `iodyn` (lib) generated 1 warning
[INFO] [stderr] warning: `iodyn` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iodyn-db1de8fdda877b61)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test archive_stack::tests::test_peek_archive ... ok
[INFO] [stdout] test archive_stack::tests::test_through_archive ... ok
[INFO] [stdout] test archive_stack::tests::test_retrieve ... ok
[INFO] [stdout] test archive_stack::tests::test_iter ... ok
[INFO] [stdout] test level_tree::tests::test_map ... ok
[INFO] [stdout] test level_tree::tests::test_fold_up ... ok
[INFO] [stdout] test raz::tests::test_from_head_stack ... ok
[INFO] [stdout] test raz::tests::test_fold_up ... ok
[INFO] [stdout] test raz::tests::test_fold_lr_meta ... ok
[INFO] [stdout] test raz::tests::test_from_tail_stack ... ok
[INFO] [stdout] test raz::tests::test_map ... ok
[INFO] [stdout] test raz::tests::test_peek_pop ... ok
[INFO] [stdout] test raz::tests::test_push_pop ... ok
[INFO] [stdout] test raz::tests::test_tree_focus ... ok
[INFO] [stdout] test skiplist::skiplist_tiny ... ok
[INFO] [stdout] test raz::tests::test_unfocus ... ok
[INFO] [stdout] test stack::tests::test_iter ... ok
[INFO] [stdout] test stack::tests::test_push_peek ... ok
[INFO] [stdout] test tree_cursor::tests::test_iter_r ... ok
[INFO] [stdout] test raz::tests::test_name_indexes ... ok
[INFO] [stdout] test tree_cursor::tests::test_movement ... ok
[INFO] [stdout] test tree_cursor::tests::test_split_join ... ok
[INFO] [stdout] test skiplist::skiplist_vs_hashmap ... ok
[INFO] [stdout] test raz::tests::test_names_many_edits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iodyn
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/level_tree.rs - level_tree::good_levels (line 207) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f908ad4438a9882ddb5b656cc85aea4b393806a20abc7b1ca393d330a7adbb65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f908ad4438a9882ddb5b656cc85aea4b393806a20abc7b1ca393d330a7adbb65", kill_on_drop: false }`
[INFO] [stdout] f908ad4438a9882ddb5b656cc85aea4b393806a20abc7b1ca393d330a7adbb65