[INFO] fetching crate anchors 0.6.0...
[INFO] testing anchors-0.6.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate anchors 0.6.0 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate anchors 0.6.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate anchors 0.6.0
[INFO] finished tweaking crates.io crate anchors 0.6.0
[INFO] tweaked toml for crates.io crate anchors 0.6.0 written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] crate crates.io crate anchors 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 221dfd536b628ebd92e4e7677912d2d31c686e53e53f945b7705e8a27815de6c
[INFO] running `Command { std: "docker" "start" "-a" "221dfd536b628ebd92e4e7677912d2d31c686e53e53f945b7705e8a27815de6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "221dfd536b628ebd92e4e7677912d2d31c686e53e53f945b7705e8a27815de6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "221dfd536b628ebd92e4e7677912d2d31c686e53e53f945b7705e8a27815de6c", kill_on_drop: false }`
[INFO] [stdout] 221dfd536b628ebd92e4e7677912d2d31c686e53e53f945b7705e8a27815de6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad00d1170e87a40f839a9e9b1e6bd45f761aef55cd06074f5331eb35969d2c75
[INFO] running `Command { std: "docker" "start" "-a" "ad00d1170e87a40f839a9e9b1e6bd45f761aef55cd06074f5331eb35969d2c75", 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]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling arena-graph v0.1.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling sized-chunks v0.6.4
[INFO] [stderr]    Compiling anchors v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]    --> src/singlethread.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |     location: Option<(&'static str, &'static Location<'static>)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `type_info`
[INFO] [stdout]    --> src/singlethread.rs:502:5
[INFO] [stdout]     |
[INFO] [stdout] 502 |     type_info: &'static str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.20s
[INFO] running `Command { std: "docker" "inspect" "ad00d1170e87a40f839a9e9b1e6bd45f761aef55cd06074f5331eb35969d2c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad00d1170e87a40f839a9e9b1e6bd45f761aef55cd06074f5331eb35969d2c75", kill_on_drop: false }`
[INFO] [stdout] ad00d1170e87a40f839a9e9b1e6bd45f761aef55cd06074f5331eb35969d2c75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9a2a7410c1602636dfd06eb1d14fdf36ff40077bd70db1e3b24f6f13a057f92
[INFO] running `Command { std: "docker" "start" "-a" "e9a2a7410c1602636dfd06eb1d14fdf36ff40077bd70db1e3b24f6f13a057f92", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling serde_json v1.0.63
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]    --> src/singlethread.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |     location: Option<(&'static str, &'static Location<'static>)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `type_info`
[INFO] [stdout]    --> src/singlethread.rs:502:5
[INFO] [stdout]     |
[INFO] [stdout] 502 |     type_info: &'static str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling plotters v0.3.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling anchors v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]    --> src/singlethread.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |     location: Option<(&'static str, &'static Location<'static>)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `type_info`
[INFO] [stdout]    --> src/singlethread.rs:502:5
[INFO] [stdout]     |
[INFO] [stdout] 502 |     type_info: &'static str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.19s
[INFO] running `Command { std: "docker" "inspect" "e9a2a7410c1602636dfd06eb1d14fdf36ff40077bd70db1e3b24f6f13a057f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a2a7410c1602636dfd06eb1d14fdf36ff40077bd70db1e3b24f6f13a057f92", kill_on_drop: false }`
[INFO] [stdout] e9a2a7410c1602636dfd06eb1d14fdf36ff40077bd70db1e3b24f6f13a057f92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9ed3f8ee27db947e9d66a0f107b9f8df8153d78ff74b0d49a851f26e17064448
[INFO] running `Command { std: "docker" "start" "-a" "9ed3f8ee27db947e9d66a0f107b9f8df8153d78ff74b0d49a851f26e17064448", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `location`
[INFO] [stderr]    --> src/singlethread.rs:501:5
[INFO] [stderr]     |
[INFO] [stderr] 501 |     location: Option<(&'static str, &'static Location<'static>)>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `type_info`
[INFO] [stderr]    --> src/singlethread.rs:502:5
[INFO] [stderr]     |
[INFO] [stderr] 502 |     type_info: &'static str,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `anchors` (lib) generated 2 warnings
[INFO] [stderr] warning: `anchors` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/anchors-bc2db665939f835c)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test singlethread::graph2::test::cycles_cause_error ... ok
[INFO] [stdout] test dict::test::test_filter ... ok
[INFO] [stdout] test dict::test::test_map ... ok
[INFO] [stdout] test singlethread::graph2::test::height_calculated_correctly ... ok
[INFO] [stdout] test singlethread::graph2::test::non_cycles_wont_cause_errors ... ok
[INFO] [stdout] test singlethread::graph2::test::set_edge_updates_correctly ... ok
[INFO] [stdout] test singlethread::graph2::test::test_free_list ... ok
[INFO] [stdout] test singlethread::graph2::test::test_insert_pop ... ok
[INFO] [stdout] test singlethread::test::test_cutoff_simple_observed ... ok
[INFO] [stdout] test singlethread::test::test_garbage_collection_wont_panic ... ok
[INFO] [stdout] test singlethread::test::test_map_simple ... ok
[INFO] [stdout] test singlethread::test::test_cutoff_simple_unobserved ... ok
[INFO] [stdout] test singlethread::test::test_observed_marking ... ok
[INFO] [stdout] test singlethread::test::test_readme_example ... ok
[INFO] [stdout] test singlethread::test::test_refmap_simple ... ok
[INFO] [stdout] test singlethread::test::test_split_simple ... ok
[INFO] [stdout] test singlethread::test::test_then_simple ... ok
[INFO] [stderr]    Doc-tests anchors
[INFO] [stdout] test singlethread::graph2::test::test_insert_above_max_height - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/expert/ext.rs - expert::ext::AnchorExt::map (line 38) ... ok
[INFO] [stdout] test src/expert/ext.rs - expert::ext::AnchorExt::refmap (line 152) ... ok
[INFO] [stdout] test src/expert/ext.rs - expert::ext::AnchorExt (line 17) ... ok
[INFO] [stdout] test src/expert/ext.rs - expert::ext::AnchorExt::then (line 72) ... ok
[INFO] [stdout] test src/expert/ext.rs - expert::ext::AnchorExt::cutoff (line 109) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9ed3f8ee27db947e9d66a0f107b9f8df8153d78ff74b0d49a851f26e17064448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed3f8ee27db947e9d66a0f107b9f8df8153d78ff74b0d49a851f26e17064448", kill_on_drop: false }`
[INFO] [stdout] 9ed3f8ee27db947e9d66a0f107b9f8df8153d78ff74b0d49a851f26e17064448