[INFO] fetching crate pre-rfc3243-libtw2-huffman 0.1.0...
[INFO] checking pre-rfc3243-libtw2-huffman-0.1.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate pre-rfc3243-libtw2-huffman 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate pre-rfc3243-libtw2-huffman 0.1.0 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pre-rfc3243-libtw2-huffman 0.1.0
[INFO] finished tweaking crates.io crate pre-rfc3243-libtw2-huffman 0.1.0
[INFO] tweaked toml for crates.io crate pre-rfc3243-libtw2-huffman 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate pre-rfc3243-libtw2-huffman 0.1.0 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mac v0.0.2
[INFO] [stderr]   Downloaded buffer v0.1.9
[INFO] [stderr]   Downloaded pre-rfc3243-libtw2-common v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b6e6dabfdf2cabdb182e949d123229366262e72893a07c8c9882c9c0b306473
[INFO] running `Command { std: "docker" "start" "-a" "5b6e6dabfdf2cabdb182e949d123229366262e72893a07c8c9882c9c0b306473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6e6dabfdf2cabdb182e949d123229366262e72893a07c8c9882c9c0b306473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6e6dabfdf2cabdb182e949d123229366262e72893a07c8c9882c9c0b306473", kill_on_drop: false }`
[INFO] [stdout] 5b6e6dabfdf2cabdb182e949d123229366262e72893a07c8c9882c9c0b306473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e6e6548a3bc82ce343202bd4e4adc88359b120655983d3faf760ba7a6de0314
[INFO] running `Command { std: "docker" "start" "-a" "7e6e6548a3bc82ce343202bd4e4adc88359b120655983d3faf760ba7a6de0314", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking mac v0.0.2
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking buffer v0.1.9
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking pre-rfc3243-libtw2-common v0.1.0
[INFO] [stderr]     Checking pre-rfc3243-libtw2-huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stdout] error[E0432]: unresolved import `libtw2_huffman_reference`
[INFO] [stdout]  --> benches/compression.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use libtw2_huffman_reference::Huffman as HuffmanReference;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `libtw2_huffman_reference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pre-rfc3243-libtw2-huffman` (bench "compression") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7e6e6548a3bc82ce343202bd4e4adc88359b120655983d3faf760ba7a6de0314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e6e6548a3bc82ce343202bd4e4adc88359b120655983d3faf760ba7a6de0314", kill_on_drop: false }`
[INFO] [stdout] 7e6e6548a3bc82ce343202bd4e4adc88359b120655983d3faf760ba7a6de0314
