[INFO] fetching crate stemjail 0.4.1...
[INFO] checking stemjail-0.4.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate stemjail 0.4.1 into /workspace/builds/worker-79/source
[INFO] validating manifest of crates.io crate stemjail 0.4.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stemjail 0.4.1
[INFO] finished tweaking crates.io crate stemjail 0.4.1
[INFO] tweaked toml for crates.io crate stemjail 0.4.1 written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dot v0.1.4
[INFO] [stderr]   Downloaded mnt v0.3.1
[INFO] [stderr]   Downloaded bitflags v0.5.0
[INFO] [stderr]   Downloaded bincode v0.5.9
[INFO] [stderr]   Downloaded fdpass v0.1.0
[INFO] [stderr]   Downloaded tty v0.4.5
[INFO] [stderr]   Downloaded stemflow v0.5.3
[INFO] [stderr]   Downloaded fd v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68d628189731d48e45a8dd78d1284cb7dd179734214a623331f5517f9913efca
[INFO] running `Command { std: "docker" "start" "-a" "68d628189731d48e45a8dd78d1284cb7dd179734214a623331f5517f9913efca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68d628189731d48e45a8dd78d1284cb7dd179734214a623331f5517f9913efca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d628189731d48e45a8dd78d1284cb7dd179734214a623331f5517f9913efca", kill_on_drop: false }`
[INFO] [stdout] 68d628189731d48e45a8dd78d1284cb7dd179734214a623331f5517f9913efca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6af516cfb1ad21689597ab5906a623868181c19c2476a25887c16cc93e632ba
[INFO] running `Command { std: "docker" "start" "-a" "c6af516cfb1ad21689597ab5906a623868181c19c2476a25887c16cc93e632ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking stemflow v0.5.3
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate collections;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stemflow` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c6af516cfb1ad21689597ab5906a623868181c19c2476a25887c16cc93e632ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6af516cfb1ad21689597ab5906a623868181c19c2476a25887c16cc93e632ba", kill_on_drop: false }`
[INFO] [stdout] c6af516cfb1ad21689597ab5906a623868181c19c2476a25887c16cc93e632ba