[INFO] cloning repository https://github.com/mahmudsudo/spmt_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahmudsudo/spmt_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahmudsudo%2Fspmt_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahmudsudo%2Fspmt_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86ef2c137118a87b7a109037c186cf8164ee6c01
[INFO] checking mahmudsudo/spmt_rs against try#f17e3a389e192f83fe27a581774a9d1dbb8e565b for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahmudsudo%2Fspmt_rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mahmudsudo/spmt_rs on toolchain f17e3a389e192f83fe27a581774a9d1dbb8e565b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mahmudsudo/spmt_rs
[INFO] finished tweaking git repo https://github.com/mahmudsudo/spmt_rs
[INFO] tweaked toml for git repo https://github.com/mahmudsudo/spmt_rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mahmudsudo/spmt_rs 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" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "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 bitreader v0.3.8
[INFO] [stderr]   Downloaded rusty-leveldb v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a3490c4231e43a29373393f10467fdf7c1af9210b865ab42ca09e28315efd57
[INFO] running `Command { std: "docker" "start" "-a" "2a3490c4231e43a29373393f10467fdf7c1af9210b865ab42ca09e28315efd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a3490c4231e43a29373393f10467fdf7c1af9210b865ab42ca09e28315efd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3490c4231e43a29373393f10467fdf7c1af9210b865ab42ca09e28315efd57", kill_on_drop: false }`
[INFO] [stdout] 2a3490c4231e43a29373393f10467fdf7c1af9210b865ab42ca09e28315efd57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 914a82c3a22793271349ad8229077d058fb7a66d1827d64c0798e74df8c7a2cb
[INFO] running `Command { std: "docker" "start" "-a" "914a82c3a22793271349ad8229077d058fb7a66d1827d64c0798e74df8c7a2cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking integer-encoding v1.1.7
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]     Checking rustc-hex v1.0.0
[INFO] [stderr]     Checking bitreader v0.3.8
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusty-leveldb v0.2.7
[INFO] [stderr]     Checking spmt_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.83s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snap v0.2.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "914a82c3a22793271349ad8229077d058fb7a66d1827d64c0798e74df8c7a2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914a82c3a22793271349ad8229077d058fb7a66d1827d64c0798e74df8c7a2cb", kill_on_drop: false }`
[INFO] [stdout] 914a82c3a22793271349ad8229077d058fb7a66d1827d64c0798e74df8c7a2cb