[INFO] fetching crate phrase_smith 0.1.0...
[INFO] testing phrase_smith-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate phrase_smith 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate phrase_smith 0.1.0
[INFO] finished tweaking crates.io crate phrase_smith 0.1.0
[INFO] tweaked toml for crates.io crate phrase_smith 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate phrase_smith 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate phrase_smith 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tinyrand-std v0.5.0
[INFO] [stderr]   Downloaded tinyrand v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed905dba9b069a4c36e1f3bfbcecfd97ca363b2c2e81f4ebb7708e9d3234516e
[INFO] running `Command { std: "docker" "start" "-a" "ed905dba9b069a4c36e1f3bfbcecfd97ca363b2c2e81f4ebb7708e9d3234516e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed905dba9b069a4c36e1f3bfbcecfd97ca363b2c2e81f4ebb7708e9d3234516e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed905dba9b069a4c36e1f3bfbcecfd97ca363b2c2e81f4ebb7708e9d3234516e", kill_on_drop: false }`
[INFO] [stdout] ed905dba9b069a4c36e1f3bfbcecfd97ca363b2c2e81f4ebb7708e9d3234516e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec6d376417d59d54bb3205dd302ecd8ad9a4dc47f1ec8ceb70fbac81b8b5171
[INFO] running `Command { std: "docker" "start" "-a" "4ec6d376417d59d54bb3205dd302ecd8ad9a4dc47f1ec8ceb70fbac81b8b5171", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyrand v0.5.0
[INFO] [stdout] error: failed to find a `codegen-backends` folder in the sysroot candidates:
[INFO] [stdout]        * /opt/rustwide/rustup-home/toolchains/caccb4d0368bd918ef6668af8e13834d07040417
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinyrand` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4ec6d376417d59d54bb3205dd302ecd8ad9a4dc47f1ec8ceb70fbac81b8b5171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec6d376417d59d54bb3205dd302ecd8ad9a4dc47f1ec8ceb70fbac81b8b5171", kill_on_drop: false }`
[INFO] [stdout] 4ec6d376417d59d54bb3205dd302ecd8ad9a4dc47f1ec8ceb70fbac81b8b5171