[INFO] fetching crate from_error_scope 0.0.1...
[INFO] checking from_error_scope-0.0.1 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate from_error_scope 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate from_error_scope 0.0.1 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca80339e077993fad6cdf0b37aa673fcef3d8b2acde26b3ccc89c5682feee6e3
[INFO] running `Command { std: "docker" "start" "-a" "ca80339e077993fad6cdf0b37aa673fcef3d8b2acde26b3ccc89c5682feee6e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca80339e077993fad6cdf0b37aa673fcef3d8b2acde26b3ccc89c5682feee6e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca80339e077993fad6cdf0b37aa673fcef3d8b2acde26b3ccc89c5682feee6e3", kill_on_drop: false }`
[INFO] [stdout] ca80339e077993fad6cdf0b37aa673fcef3d8b2acde26b3ccc89c5682feee6e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 328d957748a4fde9b68f38ac175b714196a830fabab3f4efd7405f6b6a8a2af0
[INFO] running `Command { std: "docker" "start" "-a" "328d957748a4fde9b68f38ac175b714196a830fabab3f4efd7405f6b6a8a2af0", kill_on_drop: false }`
[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] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> examples/simple.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(core, io)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]   --> examples/simple.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(core, io)]
[INFO] [stdout]    |                  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `from_error_scope` (example "simple") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "328d957748a4fde9b68f38ac175b714196a830fabab3f4efd7405f6b6a8a2af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328d957748a4fde9b68f38ac175b714196a830fabab3f4efd7405f6b6a8a2af0", kill_on_drop: false }`
[INFO] [stdout] 328d957748a4fde9b68f38ac175b714196a830fabab3f4efd7405f6b6a8a2af0
[INFO] checking from_error_scope-0.0.1 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate from_error_scope 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate from_error_scope 0.0.1 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c1064b1f59615e0fbfeed45881cae8ea5b20f374477a4ec2b7af3a66e717848
[INFO] running `Command { std: "docker" "start" "-a" "7c1064b1f59615e0fbfeed45881cae8ea5b20f374477a4ec2b7af3a66e717848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c1064b1f59615e0fbfeed45881cae8ea5b20f374477a4ec2b7af3a66e717848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c1064b1f59615e0fbfeed45881cae8ea5b20f374477a4ec2b7af3a66e717848", kill_on_drop: false }`
[INFO] [stdout] 7c1064b1f59615e0fbfeed45881cae8ea5b20f374477a4ec2b7af3a66e717848
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04bfef74aeacbcb6f8abb04b353789b44de7326f9b766a598e06b17fbf7eb6e2
[INFO] running `Command { std: "docker" "start" "-a" "04bfef74aeacbcb6f8abb04b353789b44de7326f9b766a598e06b17fbf7eb6e2", kill_on_drop: false }`
[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] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> examples/simple.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(core, io)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]   --> examples/simple.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(core, io)]
[INFO] [stdout]    |                  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `from_error_scope` (example "simple") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "04bfef74aeacbcb6f8abb04b353789b44de7326f9b766a598e06b17fbf7eb6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04bfef74aeacbcb6f8abb04b353789b44de7326f9b766a598e06b17fbf7eb6e2", kill_on_drop: false }`
[INFO] [stdout] 04bfef74aeacbcb6f8abb04b353789b44de7326f9b766a598e06b17fbf7eb6e2
