[INFO] fetching crate sizef 0.2.1...
[INFO] testing sizef-0.2.1 against 1.95.0 for beta-1.96-2
[INFO] extracting crate sizef 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate sizef 0.2.1
[INFO] finished tweaking crates.io crate sizef 0.2.1
[INFO] tweaked toml for crates.io crate sizef 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sizef 0.2.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sizef 0.2.1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04ac01d6896422e738e866d9e04979360de0b6655e0dba273cde393f2a53805e
[INFO] running `Command { std: "docker" "start" "-a" "04ac01d6896422e738e866d9e04979360de0b6655e0dba273cde393f2a53805e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04ac01d6896422e738e866d9e04979360de0b6655e0dba273cde393f2a53805e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ac01d6896422e738e866d9e04979360de0b6655e0dba273cde393f2a53805e", kill_on_drop: false }`
[INFO] [stdout] 04ac01d6896422e738e866d9e04979360de0b6655e0dba273cde393f2a53805e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c26502349aacbdd7c1adf9a45fbcb487fecb979655e754d864cee8834c12aeb
[INFO] running `Command { std: "docker" "start" "-a" "0c26502349aacbdd7c1adf9a45fbcb487fecb979655e754d864cee8834c12aeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling sizef v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "0c26502349aacbdd7c1adf9a45fbcb487fecb979655e754d864cee8834c12aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c26502349aacbdd7c1adf9a45fbcb487fecb979655e754d864cee8834c12aeb", kill_on_drop: false }`
[INFO] [stdout] 0c26502349aacbdd7c1adf9a45fbcb487fecb979655e754d864cee8834c12aeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d340f542b68983bf7d71adb7aec560c650cb5573d60a7f20176ccbb95548a91
[INFO] running `Command { std: "docker" "start" "-a" "2d340f542b68983bf7d71adb7aec560c650cb5573d60a7f20176ccbb95548a91", kill_on_drop: false }`
[INFO] [stderr]    Compiling sizef v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find type `String` in this scope
[INFO] [stdout]  --> src/tests.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut buf = String::new();
[INFO] [stdout]   |                   ^^^^^^ use of undeclared type `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `String` in this scope
[INFO] [stdout]   --> src/tests.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut buf = String::new();
[INFO] [stdout]    |                   ^^^^^^ use of undeclared type `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sizef` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d340f542b68983bf7d71adb7aec560c650cb5573d60a7f20176ccbb95548a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d340f542b68983bf7d71adb7aec560c650cb5573d60a7f20176ccbb95548a91", kill_on_drop: false }`
[INFO] [stdout] 2d340f542b68983bf7d71adb7aec560c650cb5573d60a7f20176ccbb95548a91
