[INFO] fetching crate unicode-width 0.1.11...
[INFO] checking unicode-width-0.1.11 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate unicode-width 0.1.11 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate unicode-width 0.1.11 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unicode-width 0.1.11
[INFO] finished tweaking crates.io crate unicode-width 0.1.11
[INFO] tweaked toml for crates.io crate unicode-width 0.1.11 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-std-workspace-std v1.0.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35269748fe759b1dc7a7881d0e95a0f2f68a7d80f97095f77371126c40fdf5ee
[INFO] running `Command { std: "docker" "start" "-a" "35269748fe759b1dc7a7881d0e95a0f2f68a7d80f97095f77371126c40fdf5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35269748fe759b1dc7a7881d0e95a0f2f68a7d80f97095f77371126c40fdf5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35269748fe759b1dc7a7881d0e95a0f2f68a7d80f97095f77371126c40fdf5ee", kill_on_drop: false }`
[INFO] [stdout] 35269748fe759b1dc7a7881d0e95a0f2f68a7d80f97095f77371126c40fdf5ee
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f34de69894c934d89878a1ee80a0f530a9cdba7d4bfa3d98675498bcd48a83e7
[INFO] running `Command { std: "docker" "start" "-a" "f34de69894c934d89878a1ee80a0f530a9cdba7d4bfa3d98675498bcd48a83e7", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]   --> src/tables.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use core::option::Option::{self, None, Some};
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]   --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/core/src/prelude/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Option` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `None` is imported redundantly
[INFO] [stdout]   --> src/tables.rs:18:38
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use core::option::Option::{self, None, Some};
[INFO] [stdout]    |                                      ^^^^
[INFO] [stdout]   --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/core/src/prelude/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `None` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Some` is imported redundantly
[INFO] [stdout]   --> src/tables.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use core::option::Option::{self, None, Some};
[INFO] [stdout]    |                                            ^^^^
[INFO] [stdout]   --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/core/src/prelude/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Some` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]   --> src/tables.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use core::option::Option::{self, None, Some};
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]   --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/core/src/prelude/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Option` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `None` is imported redundantly
[INFO] [stdout]   --> src/tables.rs:18:38
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use core::option::Option::{self, None, Some};
[INFO] [stdout]    |                                      ^^^^
[INFO] [stdout]   --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/core/src/prelude/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `None` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Some` is imported redundantly
[INFO] [stdout]   --> src/tables.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use core::option::Option::{self, None, Some};
[INFO] [stdout]    |                                            ^^^^
[INFO] [stdout]   --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/core/src/prelude/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Some` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "f34de69894c934d89878a1ee80a0f530a9cdba7d4bfa3d98675498bcd48a83e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34de69894c934d89878a1ee80a0f530a9cdba7d4bfa3d98675498bcd48a83e7", kill_on_drop: false }`
[INFO] [stdout] f34de69894c934d89878a1ee80a0f530a9cdba7d4bfa3d98675498bcd48a83e7