[INFO] fetching crate from_error_scope 0.0.1...
[INFO] checking from_error_scope-0.0.1 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate from_error_scope 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate from_error_scope 0.0.1 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate from_error_scope 0.0.1
[INFO] finished tweaking crates.io crate from_error_scope 0.0.1
[INFO] tweaked toml for crates.io crate from_error_scope 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c3801d3734ffd6d2fb027d83676f894b0a5bf1f14371301d4d48a8f603c64af9
[INFO] running `Command { std: "docker" "start" "-a" "c3801d3734ffd6d2fb027d83676f894b0a5bf1f14371301d4d48a8f603c64af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3801d3734ffd6d2fb027d83676f894b0a5bf1f14371301d4d48a8f603c64af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3801d3734ffd6d2fb027d83676f894b0a5bf1f14371301d4d48a8f603c64af9", kill_on_drop: false }`
[INFO] [stdout] c3801d3734ffd6d2fb027d83676f894b0a5bf1f14371301d4d48a8f603c64af9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75088d99b7a57e025fd225009f2677d402b18490593c2cf8b17eca40299e6c27
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "75088d99b7a57e025fd225009f2677d402b18490593c2cf8b17eca40299e6c27", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking from_error_scope v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::io::CharsError`
[INFO] [stdout]   --> examples/simple.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::io::CharsError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ no `CharsError` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `from_error_scope`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "75088d99b7a57e025fd225009f2677d402b18490593c2cf8b17eca40299e6c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75088d99b7a57e025fd225009f2677d402b18490593c2cf8b17eca40299e6c27", kill_on_drop: false }`
[INFO] [stdout] 75088d99b7a57e025fd225009f2677d402b18490593c2cf8b17eca40299e6c27