[INFO] fetching crate revolt_little_exif 0.5.1...
[INFO] testing revolt_little_exif-0.5.1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate revolt_little_exif 0.5.1 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate revolt_little_exif 0.5.1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c7bb5684292404045c88b0916fd743c9d1648c01354eb0fecd70c2a8d293ccb
[INFO] running `Command { std: "docker" "start" "-a" "4c7bb5684292404045c88b0916fd743c9d1648c01354eb0fecd70c2a8d293ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c7bb5684292404045c88b0916fd743c9d1648c01354eb0fecd70c2a8d293ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7bb5684292404045c88b0916fd743c9d1648c01354eb0fecd70c2a8d293ccb", kill_on_drop: false }`
[INFO] [stdout] 4c7bb5684292404045c88b0916fd743c9d1648c01354eb0fecd70c2a8d293ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b142936dfb6a5f83bb9e618540aa5d3af2fb274f19f5eef2794ce2e840ef6a61
[INFO] running `Command { std: "docker" "start" "-a" "b142936dfb6a5f83bb9e618540aa5d3af2fb274f19f5eef2794ce2e840ef6a61", kill_on_drop: false }`
[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 1.85s
[INFO] running `Command { std: "docker" "inspect" "b142936dfb6a5f83bb9e618540aa5d3af2fb274f19f5eef2794ce2e840ef6a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b142936dfb6a5f83bb9e618540aa5d3af2fb274f19f5eef2794ce2e840ef6a61", kill_on_drop: false }`
[INFO] [stdout] b142936dfb6a5f83bb9e618540aa5d3af2fb274f19f5eef2794ce2e840ef6a61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2395ef620eab53d9754a248e3fedc736e18569a725b3cbe276d228e452071475
[INFO] running `Command { std: "docker" "start" "-a" "2395ef620eab53d9754a248e3fedc736e18569a725b3cbe276d228e452071475", 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] [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/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/alloc/src/string.rs:444:5
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: could not compile `revolt_little_exif` (example "example1") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2395ef620eab53d9754a248e3fedc736e18569a725b3cbe276d228e452071475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2395ef620eab53d9754a248e3fedc736e18569a725b3cbe276d228e452071475", kill_on_drop: false }`
[INFO] [stdout] 2395ef620eab53d9754a248e3fedc736e18569a725b3cbe276d228e452071475