[INFO] fetching crate b-tree 0.3.1...
[INFO] checking b-tree-0.3.1 against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] extracting crate b-tree 0.3.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate b-tree 0.3.1 on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b-tree 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate b-tree 0.3.1
[INFO] tweaked toml for crates.io crate b-tree 0.3.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate b-tree 0.3.1 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" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tbon v0.5.2
[INFO] [stderr]   Downloaded attribute-derive-macro v0.6.1
[INFO] [stderr]   Downloaded attribute-derive v0.6.1
[INFO] [stderr]   Downloaded syn v2.0.41
[INFO] [stderr]   Downloaded collate v0.4.1
[INFO] [stderr]   Downloaded get-size-derive v0.1.3
[INFO] [stderr]   Downloaded destream v0.7.3
[INFO] [stderr]   Downloaded freqfs v0.9.1
[INFO] [stderr]   Downloaded get-size v0.1.4
[INFO] [stderr]   Downloaded ds-ext v0.1.4
[INFO] [stderr]   Downloaded safecast v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d634a837d8f0a827404e08d64bfbd9628256bc6a40443b7b7821cde3d6e8681e
[INFO] running `Command { std: "docker" "start" "-a" "d634a837d8f0a827404e08d64bfbd9628256bc6a40443b7b7821cde3d6e8681e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d634a837d8f0a827404e08d64bfbd9628256bc6a40443b7b7821cde3d6e8681e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d634a837d8f0a827404e08d64bfbd9628256bc6a40443b7b7821cde3d6e8681e", kill_on_drop: false }`
[INFO] [stdout] d634a837d8f0a827404e08d64bfbd9628256bc6a40443b7b7821cde3d6e8681e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eefc0a6ab95c39b20ff358630ad5e2e4dfb0e1fb852250c9c086ffd5744e575d
[INFO] running `Command { std: "docker" "start" "-a" "eefc0a6ab95c39b20ff358630ad5e2e4dfb0e1fb852250c9c086ffd5744e575d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling interpolator v0.5.0
[INFO] [stderr]    Compiling collection_literals v1.0.1
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]     Checking get-size v0.1.4
[INFO] [stderr]     Checking safecast v0.2.2
[INFO] [stderr]     Checking collate v0.4.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling proc-macro-utils v0.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling derive-where v1.2.7
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]    Compiling quote-use-macros v0.7.2
[INFO] [stderr]    Compiling quote-use v0.7.2
[INFO] [stderr]    Compiling attribute-derive-macro v0.6.1
[INFO] [stderr]    Compiling attribute-derive v0.6.1
[INFO] [stderr]    Compiling get-size-derive v0.1.3
[INFO] [stderr]     Checking ds-ext v0.1.4
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking freqfs v0.9.1
[INFO] [stderr]     Checking b-tree v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.52s
[INFO] running `Command { std: "docker" "inspect" "eefc0a6ab95c39b20ff358630ad5e2e4dfb0e1fb852250c9c086ffd5744e575d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eefc0a6ab95c39b20ff358630ad5e2e4dfb0e1fb852250c9c086ffd5744e575d", kill_on_drop: false }`
[INFO] [stdout] eefc0a6ab95c39b20ff358630ad5e2e4dfb0e1fb852250c9c086ffd5744e575d
[INFO] checking b-tree-0.3.1 against try#8a6640bd72b80869b16392026cb3aa8ce8e3f9b7 for pr-127827
[INFO] extracting crate b-tree 0.3.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate b-tree 0.3.1 on toolchain 8a6640bd72b80869b16392026cb3aa8ce8e3f9b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b-tree 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate b-tree 0.3.1
[INFO] tweaked toml for crates.io crate b-tree 0.3.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate b-tree 0.3.1 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" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee0f1f2cdb1eb7426722da81c4e2153cc94d92bca297b83968f6382f2c0a5039
[INFO] running `Command { std: "docker" "start" "-a" "ee0f1f2cdb1eb7426722da81c4e2153cc94d92bca297b83968f6382f2c0a5039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0f1f2cdb1eb7426722da81c4e2153cc94d92bca297b83968f6382f2c0a5039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0f1f2cdb1eb7426722da81c4e2153cc94d92bca297b83968f6382f2c0a5039", kill_on_drop: false }`
[INFO] [stdout] ee0f1f2cdb1eb7426722da81c4e2153cc94d92bca297b83968f6382f2c0a5039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4fcde4fc8e8e058a5ccbbe4455d58c84ebe8b3b75ce1171698e29283012279
[INFO] running `Command { std: "docker" "start" "-a" "5f4fcde4fc8e8e058a5ccbbe4455d58c84ebe8b3b75ce1171698e29283012279", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling interpolator v0.5.0
[INFO] [stderr]    Compiling collection_literals v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]     Checking safecast v0.2.2
[INFO] [stderr]     Checking get-size v0.1.4
[INFO] [stderr]     Checking collate v0.4.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling proc-macro-utils v0.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling derive-where v1.2.7
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]    Compiling quote-use-macros v0.7.2
[INFO] [stderr]    Compiling quote-use v0.7.2
[INFO] [stderr]    Compiling attribute-derive-macro v0.6.1
[INFO] [stderr]    Compiling attribute-derive v0.6.1
[INFO] [stderr]    Compiling get-size-derive v0.1.3
[INFO] [stderr]     Checking ds-ext v0.1.4
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking freqfs v0.9.1
[INFO] [stderr]     Checking b-tree v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/tree.rs:651:61
[INFO] [stdout]     |
[INFO] [stdout] 651 |                     let mut keys = NodeStack::with_capacity(leaf.as_ref().len());
[INFO] [stdout]     |                                                             ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/tree.rs:651:61
[INFO] [stdout]     |
[INFO] [stdout] 651 |                     let mut keys = NodeStack::with_capacity(leaf.as_ref().len());
[INFO] [stdout]     |                                                             ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b-tree` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `b-tree` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5f4fcde4fc8e8e058a5ccbbe4455d58c84ebe8b3b75ce1171698e29283012279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4fcde4fc8e8e058a5ccbbe4455d58c84ebe8b3b75ce1171698e29283012279", kill_on_drop: false }`
[INFO] [stdout] 5f4fcde4fc8e8e058a5ccbbe4455d58c84ebe8b3b75ce1171698e29283012279