[INFO] fetching crate huff_coding 1.0.0...
[INFO] testing huff_coding-1.0.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate huff_coding 1.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate huff_coding 1.0.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate huff_coding 1.0.0
[INFO] finished tweaking crates.io crate huff_coding 1.0.0
[INFO] tweaked toml for crates.io crate huff_coding 1.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20f02c88e1d73c482a17dfe13cdb14cb8958942e05353dc5240534042318a374
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "20f02c88e1d73c482a17dfe13cdb14cb8958942e05353dc5240534042318a374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20f02c88e1d73c482a17dfe13cdb14cb8958942e05353dc5240534042318a374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f02c88e1d73c482a17dfe13cdb14cb8958942e05353dc5240534042318a374", kill_on_drop: false }`
[INFO] [stdout] 20f02c88e1d73c482a17dfe13cdb14cb8958942e05353dc5240534042318a374
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6c684778ba3f0861275e51c1129a37c1dde76db99d9c561d34f6a2da28a7df8f
[INFO] running `Command { std: "docker" "start" "-a" "6c684778ba3f0861275e51c1129a37c1dde76db99d9c561d34f6a2da28a7df8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling huff_coding v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "6c684778ba3f0861275e51c1129a37c1dde76db99d9c561d34f6a2da28a7df8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c684778ba3f0861275e51c1129a37c1dde76db99d9c561d34f6a2da28a7df8f", kill_on_drop: false }`
[INFO] [stdout] 6c684778ba3f0861275e51c1129a37c1dde76db99d9c561d34f6a2da28a7df8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30f2abe70781f6b19d7aea9eeed6c9be7587ec5bd9b0762cfd17ddc39c033f8e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "30f2abe70781f6b19d7aea9eeed6c9be7587ec5bd9b0762cfd17ddc39c033f8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling huff_coding v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "30f2abe70781f6b19d7aea9eeed6c9be7587ec5bd9b0762cfd17ddc39c033f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f2abe70781f6b19d7aea9eeed6c9be7587ec5bd9b0762cfd17ddc39c033f8e", kill_on_drop: false }`
[INFO] [stdout] 30f2abe70781f6b19d7aea9eeed6c9be7587ec5bd9b0762cfd17ddc39c033f8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2fe62ce515a2babeb158f25ed07976ba30cba7ac46cd8deb612160bf96def7e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f2fe62ce515a2babeb158f25ed07976ba30cba7ac46cd8deb612160bf96def7e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff_coding-a6c3ce8487cce73a)
[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]      Running tests/comp_decomp.rs (/opt/rustwide/target/debug/deps/comp_decomp-bb8d9d3c3e282642)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test compress_decompress ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tree_bin.rs (/opt/rustwide/target/debug/deps/tree_bin-b1b330f6d3abbef8)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tree_from_bin ... ok
[INFO] [stdout] test tree_bin_invalid_type ... ok
[INFO] [stdout] test tree_bin_invalid_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tree_init.rs (/opt/rustwide/target/debug/deps/tree_init-a23dda517869b0b4)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tree_single_branch ... ok
[INFO] [stdout] test tree_normal_init ... ok
[INFO] [stdout] test tree_invalid_weights ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests huff_coding
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test src/tree/leaf.rs - tree::leaf::HuffLeaf (line 18) ... ok
[INFO] [stdout] test src/tree/branch.rs - tree::branch::HuffBranch<L>::children_iter (line 216) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name huff_coding --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-7f7cef07e9b6a6cd.rlib --extern funty=/opt/rustwide/target/debug/deps/libfunty-11be150ba20969a7.rlib --extern huff_coding=/opt/rustwide/target/debug/deps/libhuff_coding-c3c2eba1f409ae73.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f2fe62ce515a2babeb158f25ed07976ba30cba7ac46cd8deb612160bf96def7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2fe62ce515a2babeb158f25ed07976ba30cba7ac46cd8deb612160bf96def7e", kill_on_drop: false }`
[INFO] [stdout] f2fe62ce515a2babeb158f25ed07976ba30cba7ac46cd8deb612160bf96def7e