[INFO] fetching crate ceres-std 0.2.0...
[INFO] testing ceres-std-0.2.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate ceres-std 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ceres-std 0.2.0
[INFO] finished tweaking crates.io crate ceres-std 0.2.0
[INFO] tweaked toml for crates.io crate ceres-std 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ceres-std 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] 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] 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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa67306cd2c8df095b51f37e190993df263b2c61bb7d2b03e3787052cf53f6da
[INFO] running `Command { std: "docker" "start" "-a" "fa67306cd2c8df095b51f37e190993df263b2c61bb7d2b03e3787052cf53f6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa67306cd2c8df095b51f37e190993df263b2c61bb7d2b03e3787052cf53f6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa67306cd2c8df095b51f37e190993df263b2c61bb7d2b03e3787052cf53f6da", kill_on_drop: false }`
[INFO] [stdout] fa67306cd2c8df095b51f37e190993df263b2c61bb7d2b03e3787052cf53f6da
[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=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] 6afd935a90d9fc570d53cf8df1664a6caa75b20aa87a96123d2b9d4ab7d4d752
[INFO] running `Command { std: "docker" "start" "-a" "6afd935a90d9fc570d53cf8df1664a6caa75b20aa87a96123d2b9d4ab7d4d752", kill_on_drop: false }`
[INFO] [stderr]    Compiling ceres-std v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `prelude` in `alloc`
[INFO] [stdout]  --> src/no_std.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     prelude::v1::Box,
[INFO] [stdout]   |     ^^^^^^^ could not find `prelude` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ceres-std` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6afd935a90d9fc570d53cf8df1664a6caa75b20aa87a96123d2b9d4ab7d4d752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6afd935a90d9fc570d53cf8df1664a6caa75b20aa87a96123d2b9d4ab7d4d752", kill_on_drop: false }`
[INFO] [stdout] 6afd935a90d9fc570d53cf8df1664a6caa75b20aa87a96123d2b9d4ab7d4d752