[INFO] fetching crate revolt_little_exif 0.5.1...
[INFO] testing revolt_little_exif-0.5.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate revolt_little_exif 0.5.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate revolt_little_exif 0.5.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate revolt_little_exif 0.5.1
[INFO] tweaked toml for crates.io crate revolt_little_exif 0.5.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate revolt_little_exif 0.5.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate revolt_little_exif 0.5.1 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 965ccc751922a8cffe419ad5576fff3793786ee5e8bf6bd9a84c94da17a8158e
[INFO] running `Command { std: "docker" "start" "-a" "965ccc751922a8cffe419ad5576fff3793786ee5e8bf6bd9a84c94da17a8158e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "965ccc751922a8cffe419ad5576fff3793786ee5e8bf6bd9a84c94da17a8158e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "965ccc751922a8cffe419ad5576fff3793786ee5e8bf6bd9a84c94da17a8158e", kill_on_drop: false }`
[INFO] [stdout] 965ccc751922a8cffe419ad5576fff3793786ee5e8bf6bd9a84c94da17a8158e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec6adf4e1a07061f0c287e555210f3d0a95dfb44bb9c7649183bb596b648b6c5
[INFO] running `Command { std: "docker" "start" "-a" "ec6adf4e1a07061f0c287e555210f3d0a95dfb44bb9c7649183bb596b648b6c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling revolt_little_exif v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "ec6adf4e1a07061f0c287e555210f3d0a95dfb44bb9c7649183bb596b648b6c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6adf4e1a07061f0c287e555210f3d0a95dfb44bb9c7649183bb596b648b6c5", kill_on_drop: false }`
[INFO] [stdout] ec6adf4e1a07061f0c287e555210f3d0a95dfb44bb9c7649183bb596b648b6c5
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01d506e2cbd799c7b04a8e801843cc6324ce9d3936ad1ac063ea11c2c393b369
[INFO] running `Command { std: "docker" "start" "-a" "01d506e2cbd799c7b04a8e801843cc6324ce9d3936ad1ac063ea11c2c393b369", kill_on_drop: false }`
[INFO] [stderr]    Compiling revolt_little_exif v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `little_exif`
[INFO] [stdout]  --> examples/example1.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate little_exif;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `revolt_little_exif` (example "example1") due to 2 previous errors
[INFO] [stdout] error[E0599]: no function or associated item named `from_u8_vec` found for struct `String` in the current scope
[INFO] [stdout]   --> examples/example1.rs:58:41
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let image_description_string = String::from_u8_vec(
[INFO] [stdout]    |                                            ^^^^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 9 others
[INFO] [stdout]   --> /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/string.rs:437:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0463, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01d506e2cbd799c7b04a8e801843cc6324ce9d3936ad1ac063ea11c2c393b369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d506e2cbd799c7b04a8e801843cc6324ce9d3936ad1ac063ea11c2c393b369", kill_on_drop: false }`
[INFO] [stdout] 01d506e2cbd799c7b04a8e801843cc6324ce9d3936ad1ac063ea11c2c393b369