[INFO] fetching crate ascii 1.0.0...
[INFO] checking ascii-1.0.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate ascii 1.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate ascii 1.0.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ascii 1.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ascii 1.0.0
[INFO] tweaked toml for crates.io crate ascii 1.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51c3882b721c2cd25e79ec9f1a5f179c392c9a00c3f6e58293c022356d6c4bf5
[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" "51c3882b721c2cd25e79ec9f1a5f179c392c9a00c3f6e58293c022356d6c4bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51c3882b721c2cd25e79ec9f1a5f179c392c9a00c3f6e58293c022356d6c4bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c3882b721c2cd25e79ec9f1a5f179c392c9a00c3f6e58293c022356d6c4bf5", kill_on_drop: false }`
[INFO] [stdout] 51c3882b721c2cd25e79ec9f1a5f179c392c9a00c3f6e58293c022356d6c4bf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09ca074c6a1866e6dd0fe64062fad2d4d485c0c4d39322ce1480996e92ae5a49
[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" "09ca074c6a1866e6dd0fe64062fad2d4d485c0c4d39322ce1480996e92ae5a49", kill_on_drop: false }`
[INFO] [stderr]     Checking ascii v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/ascii_string.rs:675:20
[INFO] [stdout]     |
[INFO] [stdout] 675 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:204:40
[INFO] [stdout]     |
[INFO] [stdout] 204 |         &self[self.chars().take_while(|a| a.is_whitespace()).count()..]
[INFO] [stdout]     |                                        ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:218:26
[INFO] [stdout]     |
[INFO] [stdout] 218 |             .take_while(|a| a.is_whitespace())
[INFO] [stdout]     |                          ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:226:51
[INFO] [stdout]     |
[INFO] [stdout] 226 |             self.chars().zip(other.chars()).all(|(a, b)| {
[INFO] [stdout]     |                                                   ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `b` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:226:54
[INFO] [stdout]     |
[INFO] [stdout] 226 |             self.chars().zip(other.chars()).all(|(a, b)| {
[INFO] [stdout]     |                                                      ^ help: to match on the variant, qualify the path: `AsciiChar::b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         for a in self.chars_mut() {
[INFO] [stdout]     |             ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:240:13
[INFO] [stdout]     |
[INFO] [stdout] 240 |         for a in self.chars_mut() {
[INFO] [stdout]     |             ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:614:52
[INFO] [stdout]     |
[INFO] [stdout] 614 |             if let Some(at) = self.chars.position(|c| c == split_on) {
[INFO] [stdout]     |                                                    ^ help: to match on the variant, qualify the path: `AsciiChar::c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:630:53
[INFO] [stdout]     |
[INFO] [stdout] 630 |             if let Some(at) = self.chars.rposition(|c| c == split_on) {
[INFO] [stdout]     |                                                     ^ help: to match on the variant, qualify the path: `AsciiChar::c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/ascii_string.rs:675:20
[INFO] [stdout]     |
[INFO] [stdout] 675 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> tests.rs:133:34
[INFO] [stdout]     |
[INFO] [stdout] 133 |             if case.chars().all(|a| a.is_uppercase() ) {
[INFO] [stdout]     |                                  ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:204:40
[INFO] [stdout]     |
[INFO] [stdout] 204 |         &self[self.chars().take_while(|a| a.is_whitespace()).count()..]
[INFO] [stdout]     |                                        ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:218:26
[INFO] [stdout]     |
[INFO] [stdout] 218 |             .take_while(|a| a.is_whitespace())
[INFO] [stdout]     |                          ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:226:51
[INFO] [stdout]     |
[INFO] [stdout] 226 |             self.chars().zip(other.chars()).all(|(a, b)| {
[INFO] [stdout]     |                                                   ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `b` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:226:54
[INFO] [stdout]     |
[INFO] [stdout] 226 |             self.chars().zip(other.chars()).all(|(a, b)| {
[INFO] [stdout]     |                                                      ^ help: to match on the variant, qualify the path: `AsciiChar::b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         for a in self.chars_mut() {
[INFO] [stdout]     |             ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `a` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:240:13
[INFO] [stdout]     |
[INFO] [stdout] 240 |         for a in self.chars_mut() {
[INFO] [stdout]     |             ^ help: to match on the variant, qualify the path: `AsciiChar::a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:614:52
[INFO] [stdout]     |
[INFO] [stdout] 614 |             if let Some(at) = self.chars.position(|c| c == split_on) {
[INFO] [stdout]     |                                                    ^ help: to match on the variant, qualify the path: `AsciiChar::c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `AsciiChar`
[INFO] [stdout]    --> src/ascii_str.rs:630:53
[INFO] [stdout]     |
[INFO] [stdout] 630 |             if let Some(at) = self.chars.rposition(|c| c == split_on) {
[INFO] [stdout]     |                                                     ^ help: to match on the variant, qualify the path: `AsciiChar::c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "09ca074c6a1866e6dd0fe64062fad2d4d485c0c4d39322ce1480996e92ae5a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ca074c6a1866e6dd0fe64062fad2d4d485c0c4d39322ce1480996e92ae5a49", kill_on_drop: false }`
[INFO] [stdout] 09ca074c6a1866e6dd0fe64062fad2d4d485c0c4d39322ce1480996e92ae5a49