[INFO] fetching crate var_byte_str 0.1.2...
[INFO] checking var_byte_str-0.1.2 against master#d93f678fa55842cccd2f091deccd93e9494b3764 for pr-138844
[INFO] extracting crate var_byte_str 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate var_byte_str 0.1.2 on toolchain d93f678fa55842cccd2f091deccd93e9494b3764
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate var_byte_str 0.1.2
[INFO] finished tweaking crates.io crate var_byte_str 0.1.2
[INFO] tweaked toml for crates.io crate var_byte_str 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding bitvec v0.17.4 (available: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c1bf2cf87c1c273475ec3c3a0abcd887515395a0d3ab372d0ebb14648d0c128
[INFO] running `Command { std: "docker" "start" "-a" "6c1bf2cf87c1c273475ec3c3a0abcd887515395a0d3ab372d0ebb14648d0c128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c1bf2cf87c1c273475ec3c3a0abcd887515395a0d3ab372d0ebb14648d0c128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1bf2cf87c1c273475ec3c3a0abcd887515395a0d3ab372d0ebb14648d0c128", kill_on_drop: false }`
[INFO] [stdout] 6c1bf2cf87c1c273475ec3c3a0abcd887515395a0d3ab372d0ebb14648d0c128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7c31aeeac5ecb644a42ad7c4048fcfce586ccf924d5261fa8319e81eb05ea64
[INFO] running `Command { std: "docker" "start" "-a" "f7c31aeeac5ecb644a42ad7c4048fcfce586ccf924d5261fa8319e81eb05ea64", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking var_byte_str v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "f7c31aeeac5ecb644a42ad7c4048fcfce586ccf924d5261fa8319e81eb05ea64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c31aeeac5ecb644a42ad7c4048fcfce586ccf924d5261fa8319e81eb05ea64", kill_on_drop: false }`
[INFO] [stdout] f7c31aeeac5ecb644a42ad7c4048fcfce586ccf924d5261fa8319e81eb05ea64