[INFO] fetching crate rust-beam 0.3.0...
[INFO] checking rust-beam-0.3.0 against master#0e517d38ad0e72f93c734b14fabd4bb9b7441de6 for pr-140557-1
[INFO] extracting crate rust-beam 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rust-beam 0.3.0 on toolchain 0e517d38ad0e72f93c734b14fabd4bb9b7441de6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-beam 0.3.0
[INFO] finished tweaking crates.io crate rust-beam 0.3.0
[INFO] tweaked toml for crates.io crate rust-beam 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate rust-beam 0.3.0 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" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "fetch" "--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: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21b90d4f16c3ea2d7efdeceb5b7a2937c15c7c59a3daffd67f4079fa5d4e1016
[INFO] running `Command { std: "docker" "start" "-a" "21b90d4f16c3ea2d7efdeceb5b7a2937c15c7c59a3daffd67f4079fa5d4e1016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21b90d4f16c3ea2d7efdeceb5b7a2937c15c7c59a3daffd67f4079fa5d4e1016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b90d4f16c3ea2d7efdeceb5b7a2937c15c7c59a3daffd67f4079fa5d4e1016", kill_on_drop: false }`
[INFO] [stdout] 21b90d4f16c3ea2d7efdeceb5b7a2937c15c7c59a3daffd67f4079fa5d4e1016
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2786dc57283a1d85463855486b004f150cdf88079e1889758b2ab23dfbde33f
[INFO] running `Command { std: "docker" "start" "-a" "d2786dc57283a1d85463855486b004f150cdf88079e1889758b2ab23dfbde33f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-beam v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `current_slide` is never read
[INFO] [stdout]    --> src/main.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 current_slide = Slide::default();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     push_slide!();
[INFO] [stdout]     |     ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `push_slide` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_slide` is never read
[INFO] [stdout]    --> src/main.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 current_slide = Slide::default();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     push_slide!();
[INFO] [stdout]     |     ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `push_slide` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "d2786dc57283a1d85463855486b004f150cdf88079e1889758b2ab23dfbde33f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2786dc57283a1d85463855486b004f150cdf88079e1889758b2ab23dfbde33f", kill_on_drop: false }`
[INFO] [stdout] d2786dc57283a1d85463855486b004f150cdf88079e1889758b2ab23dfbde33f