[INFO] fetching crate ceres-std 0.2.0...
[INFO] checking ceres-std-0.2.0 against try#306c6aded24f02440063be828ebe601fe5eb8323 for pr-133502-3
[INFO] extracting crate ceres-std 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate ceres-std 0.2.0 on toolchain 306c6aded24f02440063be828ebe601fe5eb8323
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "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" "+306c6aded24f02440063be828ebe601fe5eb8323" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cdea4b3189d86a655c4d21d2c6b4483d42198bdb008329a99cd211df9deaad6
[INFO] running `Command { std: "docker" "start" "-a" "2cdea4b3189d86a655c4d21d2c6b4483d42198bdb008329a99cd211df9deaad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cdea4b3189d86a655c4d21d2c6b4483d42198bdb008329a99cd211df9deaad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cdea4b3189d86a655c4d21d2c6b4483d42198bdb008329a99cd211df9deaad6", kill_on_drop: false }`
[INFO] [stdout] 2cdea4b3189d86a655c4d21d2c6b4483d42198bdb008329a99cd211df9deaad6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9119624c357502e8a4e76088d09dc4ae280050bd724a8803730b0dafee6309b
[INFO] running `Command { std: "docker" "start" "-a" "e9119624c357502e8a4e76088d09dc4ae280050bd724a8803730b0dafee6309b", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [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] [stderr] error: could not compile `ceres-std` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ceres-std` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e9119624c357502e8a4e76088d09dc4ae280050bd724a8803730b0dafee6309b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9119624c357502e8a4e76088d09dc4ae280050bd724a8803730b0dafee6309b", kill_on_drop: false }`
[INFO] [stdout] e9119624c357502e8a4e76088d09dc4ae280050bd724a8803730b0dafee6309b