[INFO] fetching crate scan 0.1.0...
[INFO] checking scan-0.1.0 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate scan 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate scan 0.1.0 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scan 0.1.0
[INFO] finished tweaking crates.io crate scan 0.1.0
[INFO] tweaked toml for crates.io crate scan 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b048fafcd802c9903806d95959053d54d17c836fd30e2bbeaaebf25d66eb054
[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" "7b048fafcd802c9903806d95959053d54d17c836fd30e2bbeaaebf25d66eb054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b048fafcd802c9903806d95959053d54d17c836fd30e2bbeaaebf25d66eb054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b048fafcd802c9903806d95959053d54d17c836fd30e2bbeaaebf25d66eb054", kill_on_drop: false }`
[INFO] [stdout] 7b048fafcd802c9903806d95959053d54d17c836fd30e2bbeaaebf25d66eb054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2236b65862fdfa8105c830eab82b388a4dbbadf90e0dbea169ef0863431049a
[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" "f2236b65862fdfa8105c830eab82b388a4dbbadf90e0dbea169ef0863431049a", kill_on_drop: false }`
[INFO] [stderr]     Checking scan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `std::io::Chars`, `std::io::CharsError`
[INFO] [stdout]  --> src/scan.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Chars, CharsError, BufReader};
[INFO] [stdout]   |                     ^^^^^  ^^^^^^^^^^ no `CharsError` in `io`
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     no `Chars` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::Chars`, `std::io::CharsError`
[INFO] [stdout]  --> src/scan.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Read, Chars, CharsError, BufReader};
[INFO] [stdout]   |                     ^^^^^  ^^^^^^^^^^ no `CharsError` in `io`
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     no `Chars` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/scan.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<F: FromStr> From<io::CharsError> for ScanError<F> {
[INFO] [stdout]    |                           ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/scan.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from(e: io::CharsError) -> ScanError<F> { ScanError::Io(e) }
[INFO] [stdout]    |                    ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(io)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/scan.rs:275:16
[INFO] [stdout]     |
[INFO] [stdout] 275 |     let file = try!(File::open(path));
[INFO] [stdout]     |                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/scan.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scan.rs:71:32
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/scan.rs:66:39
[INFO] [stdout]    |
[INFO] [stdout] 66 |             ScanError::Io(ref err) => Error::description(err),
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/scan.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<F: FromStr> From<io::CharsError> for ScanError<F> {
[INFO] [stdout]    |                           ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/scan.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from(e: io::CharsError) -> ScanError<F> { ScanError::Io(e) }
[INFO] [stdout]    |                    ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | #![feature(io)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/scan.rs:275:16
[INFO] [stdout]     |
[INFO] [stdout] 275 |     let file = try!(File::open(path));
[INFO] [stdout]     |                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/scan.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scan.rs:71:32
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/scan.rs:66:39
[INFO] [stdout]    |
[INFO] [stdout] 66 |             ScanError::Io(ref err) => Error::description(err),
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/scan.rs:65:46
[INFO] [stdout]    |
[INFO] [stdout] 65 |             ScanError::Parse(ref err) => err.description(),
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for type parameter `R` in the current scope
[INFO] [stdout]    --> src/scan.rs:199:32
[INFO] [stdout]     |
[INFO] [stdout] 199 |         Scanner{ chars: reader.chars(), ignore: f }
[INFO] [stdout]     |                                ^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/scan.rs:65:46
[INFO] [stdout]    |
[INFO] [stdout] 65 |             ScanError::Parse(ref err) => err.description(),
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scan`.
[INFO] [stdout] error: aborting due to 5 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0554, E0599.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `chars` found for type parameter `R` in the current scope
[INFO] [stdout]    --> src/scan.rs:199:32
[INFO] [stdout]     |
[INFO] [stdout] 199 |         Scanner{ chars: reader.chars(), ignore: f }
[INFO] [stdout]     |                                ^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f2236b65862fdfa8105c830eab82b388a4dbbadf90e0dbea169ef0863431049a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2236b65862fdfa8105c830eab82b388a4dbbadf90e0dbea169ef0863431049a", kill_on_drop: false }`
[INFO] [stdout] f2236b65862fdfa8105c830eab82b388a4dbbadf90e0dbea169ef0863431049a
