[INFO] fetching crate souvenir-core 0.5.5...
[INFO] testing souvenir-core-0.5.5 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate souvenir-core 0.5.5 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate souvenir-core 0.5.5
[INFO] finished tweaking crates.io crate souvenir-core 0.5.5
[INFO] tweaked toml for crates.io crate souvenir-core 0.5.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate souvenir-core 0.5.5 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 souvenir-core 0.5.5 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c977a38e654042ebf110052cbe0fcf55cf69946ed153414d5add31248a649d9c
[INFO] running `Command { std: "docker" "start" "-a" "c977a38e654042ebf110052cbe0fcf55cf69946ed153414d5add31248a649d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c977a38e654042ebf110052cbe0fcf55cf69946ed153414d5add31248a649d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c977a38e654042ebf110052cbe0fcf55cf69946ed153414d5add31248a649d9c", kill_on_drop: false }`
[INFO] [stdout] c977a38e654042ebf110052cbe0fcf55cf69946ed153414d5add31248a649d9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3d562def294441c70aed6ebe6f880240188ad42cc79df79efc4512f32b9ffbfd
[INFO] running `Command { std: "docker" "start" "-a" "3d562def294441c70aed6ebe6f880240188ad42cc79df79efc4512f32b9ffbfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling souvenir-core v0.5.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "3d562def294441c70aed6ebe6f880240188ad42cc79df79efc4512f32b9ffbfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d562def294441c70aed6ebe6f880240188ad42cc79df79efc4512f32b9ffbfd", kill_on_drop: false }`
[INFO] [stdout] 3d562def294441c70aed6ebe6f880240188ad42cc79df79efc4512f32b9ffbfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 63da668388063df735df9d57734cefded508906d28d0216aeb426df8bde9137c
[INFO] running `Command { std: "docker" "start" "-a" "63da668388063df735df9d57734cefded508906d28d0216aeb426df8bde9137c", kill_on_drop: false }`
[INFO] [stderr]    Compiling souvenir-core v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]   --> src/encoding/suffix.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use rand::random;
[INFO] [stdout]    |         ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `souvenir-core` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "63da668388063df735df9d57734cefded508906d28d0216aeb426df8bde9137c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63da668388063df735df9d57734cefded508906d28d0216aeb426df8bde9137c", kill_on_drop: false }`
[INFO] [stdout] 63da668388063df735df9d57734cefded508906d28d0216aeb426df8bde9137c