[INFO] fetching crate sizef 0.2.0...
[INFO] testing sizef-0.2.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate sizef 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate sizef 0.2.0
[INFO] finished tweaking crates.io crate sizef 0.2.0
[INFO] tweaked toml for crates.io crate sizef 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sizef 0.2.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fea1c41abb4a068cc54c36914d68d60493d1f98ed1a38cb218ffc594228f0bbe
[INFO] running `Command { std: "docker" "start" "-a" "fea1c41abb4a068cc54c36914d68d60493d1f98ed1a38cb218ffc594228f0bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fea1c41abb4a068cc54c36914d68d60493d1f98ed1a38cb218ffc594228f0bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fea1c41abb4a068cc54c36914d68d60493d1f98ed1a38cb218ffc594228f0bbe", kill_on_drop: false }`
[INFO] [stdout] fea1c41abb4a068cc54c36914d68d60493d1f98ed1a38cb218ffc594228f0bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adcb0119615a0d93c39e2cfc7f0eecb6f218921bde35bb2fdd57429932e8540a
[INFO] running `Command { std: "docker" "start" "-a" "adcb0119615a0d93c39e2cfc7f0eecb6f218921bde35bb2fdd57429932e8540a", kill_on_drop: false }`
[INFO] [stderr]    Compiling sizef v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "adcb0119615a0d93c39e2cfc7f0eecb6f218921bde35bb2fdd57429932e8540a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adcb0119615a0d93c39e2cfc7f0eecb6f218921bde35bb2fdd57429932e8540a", kill_on_drop: false }`
[INFO] [stdout] adcb0119615a0d93c39e2cfc7f0eecb6f218921bde35bb2fdd57429932e8540a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee2cbdb712341ada84bca672ebfcbb727bd894449a34e2a5816f34f758ac72f1
[INFO] running `Command { std: "docker" "start" "-a" "ee2cbdb712341ada84bca672ebfcbb727bd894449a34e2a5816f34f758ac72f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling sizef v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `String`
[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]: failed to resolve: use of undeclared type `String`
[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" "ee2cbdb712341ada84bca672ebfcbb727bd894449a34e2a5816f34f758ac72f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2cbdb712341ada84bca672ebfcbb727bd894449a34e2a5816f34f758ac72f1", kill_on_drop: false }`
[INFO] [stdout] ee2cbdb712341ada84bca672ebfcbb727bd894449a34e2a5816f34f758ac72f1