[INFO] cloning repository https://github.com/TisButMe/learn-compilers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TisButMe/learn-compilers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisButMe%2Flearn-compilers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisButMe%2Flearn-compilers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c17ee9a0f3f861cb100c362692c755015d1cf195
[INFO] checking TisButMe/learn-compilers against master#5257aee7dd163d21d32fa904578d4fb0f4c91b79 for pr-116494-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisButMe%2Flearn-compilers" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TisButMe/learn-compilers on toolchain 5257aee7dd163d21d32fa904578d4fb0f4c91b79
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5257aee7dd163d21d32fa904578d4fb0f4c91b79" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TisButMe/learn-compilers
[INFO] finished tweaking git repo https://github.com/TisButMe/learn-compilers
[INFO] tweaked toml for git repo https://github.com/TisButMe/learn-compilers written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TisButMe/learn-compilers 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" "+5257aee7dd163d21d32fa904578d4fb0f4c91b79" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[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 TisButMe/learn-compilers against try#d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8 for pr-116494-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisButMe%2Flearn-compilers" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TisButMe/learn-compilers on toolchain d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TisButMe/learn-compilers
[INFO] finished tweaking git repo https://github.com/TisButMe/learn-compilers
[INFO] tweaked toml for git repo https://github.com/TisButMe/learn-compilers written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/TisButMe/learn-compilers 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" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51cd11cbe1128d68cbbfcf2a34d8bb1655b52974230764d30bdc9dda640d2abf
[INFO] running `Command { std: "docker" "start" "-a" "51cd11cbe1128d68cbbfcf2a34d8bb1655b52974230764d30bdc9dda640d2abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51cd11cbe1128d68cbbfcf2a34d8bb1655b52974230764d30bdc9dda640d2abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51cd11cbe1128d68cbbfcf2a34d8bb1655b52974230764d30bdc9dda640d2abf", kill_on_drop: false }`
[INFO] [stdout] 51cd11cbe1128d68cbbfcf2a34d8bb1655b52974230764d30bdc9dda640d2abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d614ed876e31a5f3ad1d0fbf848fcdab3a29d1d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 190d1f43b369bda7eaf56812415865d3bbc3ae5ffe71560641bad9f4ed0c7871
[INFO] running `Command { std: "docker" "start" "-a" "190d1f43b369bda7eaf56812415865d3bbc3ae5ffe71560641bad9f4ed0c7871", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]     Checking learn-compilers v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]    --> src/main.rs:111:41
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn get_number(look_ahead: &mut char) -> uint {
[INFO] [stdout]     |                                         ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]    --> src/main.rs:111:41
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn get_number(look_ahead: &mut char) -> uint {
[INFO] [stdout]     |                                         ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let instr = "MOV ".to_string() + name + ", RAX".to_string();
[INFO] [stdout]    |                                    ^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let instr = "MOV ".to_string() + &name + ", RAX".to_string();
[INFO] [stdout]    |                                    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:38:43
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let instr = "MOV ".to_string() + name + ", RAX".to_string();
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]    |
[INFO] [stdout] 38 -   let instr = "MOV ".to_string() + name + ", RAX".to_string();
[INFO] [stdout] 38 +   let instr = "MOV ".to_string() + name + ", RAX";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let instr = "MOV ".to_string() + name + ", RAX".to_string();
[INFO] [stdout]    |                                    ^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let instr = "MOV ".to_string() + &name + ", RAX".to_string();
[INFO] [stdout]    |                                    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:38:43
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let instr = "MOV ".to_string() + name + ", RAX".to_string();
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]    |
[INFO] [stdout] 38 -   let instr = "MOV ".to_string() + name + ", RAX".to_string();
[INFO] [stdout] 38 +   let instr = "MOV ".to_string() + name + ", RAX";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |   emit_ln(instr.as_slice());
[INFO] [stdout]    |                 ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |   emit_ln(instr.as_slice());
[INFO] [stdout]    |                 ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |       emit_ln(instr.as_slice());
[INFO] [stdout]    |                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |       emit_ln(instr.as_slice());
[INFO] [stdout]    |                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_char` found for struct `Stdin` in the current scope
[INFO] [stdout]    --> src/main.rs:104:26
[INFO] [stdout]     |
[INFO] [stdout] 104 |   let mut next = stdin().read_char().unwrap();
[INFO] [stdout]     |                          ^^^^^^^^^ method not found in `Stdin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_char` found for struct `Stdin` in the current scope
[INFO] [stdout]    --> src/main.rs:104:26
[INFO] [stdout]     |
[INFO] [stdout] 104 |   let mut next = stdin().read_char().unwrap();
[INFO] [stdout]     |                          ^^^^^^^^^ method not found in `Stdin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_char` found for struct `Stdin` in the current scope
[INFO] [stdout]    --> src/main.rs:106:20
[INFO] [stdout]     |
[INFO] [stdout] 106 |     next = stdin().read_char().unwrap();
[INFO] [stdout]     |                    ^^^^^^^^^ method not found in `Stdin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:126:19
[INFO] [stdout]     |
[INFO] [stdout] 126 |     name = name + look_ahead.to_string();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 126 |     name = name + &look_ahead.to_string();
[INFO] [stdout]     |                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:137:41
[INFO] [stdout]     |
[INFO] [stdout] 137 |       let instr = "CALL ".to_string() + name;
[INFO] [stdout]     |                                         ^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 137 |       let instr = "CALL ".to_string() + &name;
[INFO] [stdout]     |                                         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_char` found for struct `Stdin` in the current scope
[INFO] [stdout]    --> src/main.rs:106:20
[INFO] [stdout]     |
[INFO] [stdout] 106 |     next = stdin().read_char().unwrap();
[INFO] [stdout]     |                    ^^^^^^^^^ method not found in `Stdin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:126:19
[INFO] [stdout]     |
[INFO] [stdout] 126 |     name = name + look_ahead.to_string();
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 126 |     name = name + &look_ahead.to_string();
[INFO] [stdout]     |                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:137:41
[INFO] [stdout]     |
[INFO] [stdout] 137 |       let instr = "CALL ".to_string() + name;
[INFO] [stdout]     |                                         ^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 137 |       let instr = "CALL ".to_string() + &name;
[INFO] [stdout]     |                                         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/main.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |       emit_ln(instr.as_slice());
[INFO] [stdout]     |                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:142:45
[INFO] [stdout]     |
[INFO] [stdout] 142 |       let instr = "MOV RAX, ".to_string() + name;
[INFO] [stdout]     |                                             ^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 142 |       let instr = "MOV RAX, ".to_string() + &name;
[INFO] [stdout]     |                                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/main.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |       emit_ln(instr.as_slice());
[INFO] [stdout]     |                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:142:45
[INFO] [stdout]     |
[INFO] [stdout] 142 |       let instr = "MOV RAX, ".to_string() + name;
[INFO] [stdout]     |                                             ^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 142 |       let instr = "MOV RAX, ".to_string() + &name;
[INFO] [stdout]     |                                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/main.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |       emit_ln(instr.as_slice());
[INFO] [stdout]     |                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 |   emit(s.to_string() + "\n".to_string());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]     |
[INFO] [stdout] 161 -   emit(s.to_string() + "\n".to_string());
[INFO] [stdout] 161 +   emit(s.to_string() + "\n");
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn-compilers` (bin "learn-compilers") due to 14 previous errors
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/main.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |       emit_ln(instr.as_slice());
[INFO] [stdout]     |                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 |   emit(s.to_string() + "\n".to_string());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]     |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]     |
[INFO] [stdout] 161 -   emit(s.to_string() + "\n".to_string());
[INFO] [stdout] 161 +   emit(s.to_string() + "\n");
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn-compilers` (bin "learn-compilers" test) due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "190d1f43b369bda7eaf56812415865d3bbc3ae5ffe71560641bad9f4ed0c7871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "190d1f43b369bda7eaf56812415865d3bbc3ae5ffe71560641bad9f4ed0c7871", kill_on_drop: false }`
[INFO] [stdout] 190d1f43b369bda7eaf56812415865d3bbc3ae5ffe71560641bad9f4ed0c7871