[INFO] cloning repository https://github.com/guolianwei/ruststudy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guolianwei/ruststudy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguolianwei%2Fruststudy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguolianwei%2Fruststudy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2a6cf999cb6dbd74f1a13c2da79b8b19ad9485a
[INFO] checking guolianwei/ruststudy against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguolianwei%2Fruststudy" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guolianwei/ruststudy on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guolianwei/ruststudy
[INFO] finished tweaking git repo https://github.com/guolianwei/ruststudy
[INFO] tweaked toml for git repo https://github.com/guolianwei/ruststudy written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/guolianwei/ruststudy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 501421a79f01785f88a26ace6bb73f91e6ba293963564ef1bd95806102112d83
[INFO] running `Command { std: "docker" "start" "-a" "501421a79f01785f88a26ace6bb73f91e6ba293963564ef1bd95806102112d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "501421a79f01785f88a26ace6bb73f91e6ba293963564ef1bd95806102112d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "501421a79f01785f88a26ace6bb73f91e6ba293963564ef1bd95806102112d83", kill_on_drop: false }`
[INFO] [stdout] 501421a79f01785f88a26ace6bb73f91e6ba293963564ef1bd95806102112d83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e527509e50f6d1a1a0ef60d5e29909986f420bd7dcb3f6baf343153d1d4396ae
[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" "e527509e50f6d1a1a0ef60d5e29909986f420bd7dcb3f6baf343153d1d4396ae", kill_on_drop: false }`
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/vect.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |         97...122 | 65...90 | 48...57 => {
[INFO] [stdout]    |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/vect.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         97...122 | 65...90 | 48...57 => {
[INFO] [stdout]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/vect.rs:48:32
[INFO] [stdout]    |
[INFO] [stdout] 48 |         97...122 | 65...90 | 48...57 => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/closures.rs:29:22
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn factory() ->  Box<Fn(i32) -> i32> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/closures.rs:34:22
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn factory1() -> Box<Fn(i32) -> i32> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/vect.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |         97...122 | 65...90 | 48...57 => {
[INFO] [stdout]    |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/vect.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         97...122 | 65...90 | 48...57 => {
[INFO] [stdout]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/vect.rs:48:32
[INFO] [stdout]    |
[INFO] [stdout] 48 |         97...122 | 65...90 | 48...57 => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/closures.rs:29:22
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn factory() ->  Box<Fn(i32) -> i32> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/closures.rs:34:22
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn factory1() -> Box<Fn(i32) -> i32> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]    --> src/main.rs:14:7
[INFO] [stdout]     |
[INFO] [stdout] 14  |     f.read_to_string(&mut s)?;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^ method not found in `File`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Box::new(f).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^ ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Box::new(&mut f).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^  ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Box::new(&f).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^ ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]    --> src/main.rs:20:30
[INFO] [stdout]     |
[INFO] [stdout] 20  |     File::open("hello.txt")?.read_to_string(&mut s)?;
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ method not found in `File`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 20  |     Box::new(File::open("hello.txt")?).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^                        ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 20  |     Box::new(&mut File::open("hello.txt")?).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^                         ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 20  |     Box::new(&File::open("hello.txt")?).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^                        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]    --> src/main.rs:14:7
[INFO] [stdout]     |
[INFO] [stdout] 14  |     f.read_to_string(&mut s)?;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^ method not found in `File`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Box::new(f).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^ ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Box::new(&mut f).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^  ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Box::new(&f).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^ ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]    --> src/main.rs:20:30
[INFO] [stdout]     |
[INFO] [stdout] 20  |     File::open("hello.txt")?.read_to_string(&mut s)?;
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ method not found in `File`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 20  |     Box::new(File::open("hello.txt")?).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^                        ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 20  |     Box::new(&mut File::open("hello.txt")?).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^^^^                         ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 20  |     Box::new(&File::open("hello.txt")?).read_to_string(&mut s)?;
[INFO] [stdout]     |     ^^^^^^^^^^                        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guessing_game`
[INFO] [stderr] 
[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" "e527509e50f6d1a1a0ef60d5e29909986f420bd7dcb3f6baf343153d1d4396ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e527509e50f6d1a1a0ef60d5e29909986f420bd7dcb3f6baf343153d1d4396ae", kill_on_drop: false }`
[INFO] [stdout] e527509e50f6d1a1a0ef60d5e29909986f420bd7dcb3f6baf343153d1d4396ae