[INFO] fetching crate fstrings-rust 1.0.1...
[INFO] testing fstrings-rust-1.0.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate fstrings-rust 1.0.1 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate fstrings-rust 1.0.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fstrings-rust 1.0.1
[INFO] finished tweaking crates.io crate fstrings-rust 1.0.1
[INFO] tweaked toml for crates.io crate fstrings-rust 1.0.1 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate crates.io crate fstrings-rust 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.69
[INFO] [stderr]   Downloaded fstrings-rust-proc-macro v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be1708f5b669c6415fca562e609d9040fc37e91a13c8ac99f5b487e0e4b3fca8
[INFO] running `Command { std: "docker" "start" "-a" "be1708f5b669c6415fca562e609d9040fc37e91a13c8ac99f5b487e0e4b3fca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be1708f5b669c6415fca562e609d9040fc37e91a13c8ac99f5b487e0e4b3fca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be1708f5b669c6415fca562e609d9040fc37e91a13c8ac99f5b487e0e4b3fca8", kill_on_drop: false }`
[INFO] [stdout] be1708f5b669c6415fca562e609d9040fc37e91a13c8ac99f5b487e0e4b3fca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc3e25beb4a7a9a297e99182f27bbdf22f06df7273ffed8040db66a802436ee7
[INFO] running `Command { std: "docker" "start" "-a" "cc3e25beb4a7a9a297e99182f27bbdf22f06df7273ffed8040db66a802436ee7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling fstrings-rust-proc-macro v1.0.0
[INFO] [stderr]    Compiling fstrings-rust v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `Command { std: "docker" "inspect" "cc3e25beb4a7a9a297e99182f27bbdf22f06df7273ffed8040db66a802436ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3e25beb4a7a9a297e99182f27bbdf22f06df7273ffed8040db66a802436ee7", kill_on_drop: false }`
[INFO] [stdout] cc3e25beb4a7a9a297e99182f27bbdf22f06df7273ffed8040db66a802436ee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9aa5adb412d1d4850b3111a9aa2698a185400e50f74a7bbb7c59f75d29a2aea4
[INFO] running `Command { std: "docker" "start" "-a" "9aa5adb412d1d4850b3111a9aa2698a185400e50f74a7bbb7c59f75d29a2aea4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fstrings-rust v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `fstrings`
[INFO] [stdout]  --> examples/readme.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate fstrings;
[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 `fstrings-rust` 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" "9aa5adb412d1d4850b3111a9aa2698a185400e50f74a7bbb7c59f75d29a2aea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aa5adb412d1d4850b3111a9aa2698a185400e50f74a7bbb7c59f75d29a2aea4", kill_on_drop: false }`
[INFO] [stdout] 9aa5adb412d1d4850b3111a9aa2698a185400e50f74a7bbb7c59f75d29a2aea4