[INFO] cloning repository https://github.com/KBeKind/rust-basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KBeKind/rust-basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKBeKind%2Frust-basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKBeKind%2Frust-basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4489d8c7714b4ea83d90b96a134da230e23e876
[INFO] checking KBeKind/rust-basics against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKBeKind%2Frust-basics" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KBeKind/rust-basics on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KBeKind/rust-basics
[INFO] finished tweaking git repo https://github.com/KBeKind/rust-basics
[INFO] tweaked toml for git repo https://github.com/KBeKind/rust-basics written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KBeKind/rust-basics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking KBeKind/rust-basics against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKBeKind%2Frust-basics" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KBeKind/rust-basics on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KBeKind/rust-basics
[INFO] finished tweaking git repo https://github.com/KBeKind/rust-basics
[INFO] tweaked toml for git repo https://github.com/KBeKind/rust-basics written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KBeKind/rust-basics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking KBeKind/rust-basics against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKBeKind%2Frust-basics" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KBeKind/rust-basics on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KBeKind/rust-basics
[INFO] finished tweaking git repo https://github.com/KBeKind/rust-basics
[INFO] tweaked toml for git repo https://github.com/KBeKind/rust-basics written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KBeKind/rust-basics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09c34212fe9f78feaeff205943ae4d11fc9fad970a0ca7d37853285d27a31319
[INFO] running `Command { std: "docker" "start" "-a" "09c34212fe9f78feaeff205943ae4d11fc9fad970a0ca7d37853285d27a31319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09c34212fe9f78feaeff205943ae4d11fc9fad970a0ca7d37853285d27a31319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c34212fe9f78feaeff205943ae4d11fc9fad970a0ca7d37853285d27a31319", kill_on_drop: false }`
[INFO] [stdout] 09c34212fe9f78feaeff205943ae4d11fc9fad970a0ca7d37853285d27a31319
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ef42df2a014ee742854b87c1e752a51a0c6b36def627a8c630ed56e60f4cf9a
[INFO] running `Command { std: "docker" "start" "-a" "0ef42df2a014ee742854b87c1e752a51a0c6b36def627a8c630ed56e60f4cf9a", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `@` or `|`, found `:`
[INFO] [stdout]   --> src/main.rs:76:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i: i32 in 0..10 {
[INFO] [stdout]    |          ^ --- specifying the type of a pattern isn't supported
[INFO] [stdout]    |          |
[INFO] [stdout]    |          expected one of `@` or `|`
[INFO] [stdout]    |
[INFO] [stdout] help: maybe write a path separator here
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i::i32 in 0..10 {
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `@`, or `|`, found `)`
[INFO] [stdout]    --> src/main.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(parameter_list) -> return_type {
[INFO] [stdout]     |                                ^ expected one of `:`, `@`, or `|`
[INFO] [stdout]     |
[INFO] [stdout]     = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: if this is a `self` type, give it a parameter name
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(self: parameter_list) -> return_type {
[INFO] [stdout]     |                  +++++
[INFO] [stdout] help: if this is a parameter name, give it a type
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(parameter_list: TypeName) -> return_type {
[INFO] [stdout]     |                                ++++++++++
[INFO] [stdout] help: if this is a type, explicitly ignore the parameter name
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(_: parameter_list) -> return_type {
[INFO] [stdout]     |                  ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `@` or `|`, found `:`
[INFO] [stdout]   --> src/main.rs:76:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i: i32 in 0..10 {
[INFO] [stdout]    |          ^ --- specifying the type of a pattern isn't supported
[INFO] [stdout]    |          |
[INFO] [stdout]    |          expected one of `@` or `|`
[INFO] [stdout]    |
[INFO] [stdout] help: maybe write a path separator here
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for i::i32 in 0..10 {
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `@`, or `|`, found `)`
[INFO] [stdout]    --> src/main.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(parameter_list) -> return_type {
[INFO] [stdout]     |                                ^ expected one of `:`, `@`, or `|`
[INFO] [stdout]     |
[INFO] [stdout]     = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: if this is a `self` type, give it a parameter name
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(self: parameter_list) -> return_type {
[INFO] [stdout]     |                  +++++
[INFO] [stdout] help: if this is a parameter name, give it a type
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(parameter_list: TypeName) -> return_type {
[INFO] [stdout]     |                                ++++++++++
[INFO] [stdout] help: if this is a type, explicitly ignore the parameter name
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(_: parameter_list) -> return_type {
[INFO] [stdout]     |                  ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `Rectangle` is defined multiple times
[INFO] [stdout]    --> src/main.rs:169:1
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct Rectangle { width: u32, height: u32,
[INFO] [stdout]     | ---------------- previous definition of the type `Rectangle` here
[INFO] [stdout] ...
[INFO] [stdout] 169 | struct Rectangle { width: u32, height: u32,
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^ `Rectangle` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` must be defined only once in the type namespace of this block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `Rectangle` is defined multiple times
[INFO] [stdout]    --> src/main.rs:169:1
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct Rectangle { width: u32, height: u32,
[INFO] [stdout]     | ---------------- previous definition of the type `Rectangle` here
[INFO] [stdout] ...
[INFO] [stdout] 169 | struct Rectangle { width: u32, height: u32,
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^ `Rectangle` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` must be defined only once in the type namespace of this block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro expansion ignores token `{` and any following
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/macros.rs:142:23
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     println!("The average is {}", average);
[INFO] [stdout]   |     -------------------------------------- caused by the macro expansion here
[INFO] [stdout]   |
[INFO] [stdout]   = note: the usage of `println!` is likely invalid in item context
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro expansion ignores token `{` and any following
[INFO] [stdout]  --> /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/macros.rs:142:23
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     println!("The average is {}", average);
[INFO] [stdout]   |     -------------------------------------- caused by the macro expansion here
[INFO] [stdout]   |
[INFO] [stdout]   = note: the usage of `println!` is likely invalid in item context
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `return_type` in this scope
[INFO] [stdout]    --> src/main.rs:112:37
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(parameter_list) -> return_type {
[INFO] [stdout]     |                                     ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `return_type` in this scope
[INFO] [stdout]    --> src/main.rs:112:37
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn function_name(parameter_list) -> return_type {
[INFO] [stdout]     |                                     ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `area`
[INFO] [stdout]    --> src/main.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Rectangle { fn area(&self) -> u32 { self.width * self.height }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `area`
[INFO] [stdout] ...
[INFO] [stdout] 173 | impl Rectangle { fn area(&self) -> u32 { self.width * self.height }
[INFO] [stdout]     |                  --------------------- other definition for `area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `area`
[INFO] [stdout]    --> src/main.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Rectangle { fn area(&self) -> u32 { self.width * self.height }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `area`
[INFO] [stdout] ...
[INFO] [stdout] 173 | impl Rectangle { fn area(&self) -> u32 { self.width * self.height }
[INFO] [stdout]     |                  --------------------- other definition for `area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let item: &str = "mango";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let item: &str = "mango";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0428, E0592.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0428, E0592.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` (bin "hello") due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hello` (bin "hello" test) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0ef42df2a014ee742854b87c1e752a51a0c6b36def627a8c630ed56e60f4cf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ef42df2a014ee742854b87c1e752a51a0c6b36def627a8c630ed56e60f4cf9a", kill_on_drop: false }`
[INFO] [stdout] 0ef42df2a014ee742854b87c1e752a51a0c6b36def627a8c630ed56e60f4cf9a