[INFO] cloning repository https://github.com/tkclimb/hack-vm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tkclimb/hack-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkclimb%2Fhack-vm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkclimb%2Fhack-vm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4dcae3a039edecac1d4ecae28e3a794422700c00 [INFO] checking tkclimb/hack-vm against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkclimb%2Fhack-vm" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tkclimb/hack-vm on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tkclimb/hack-vm [INFO] finished tweaking git repo https://github.com/tkclimb/hack-vm [INFO] tweaked toml for git repo https://github.com/tkclimb/hack-vm written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/tkclimb/hack-vm already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] ae2ced31a7b143bb114dac9460de769e26ef0d653cd4b6e1da3db7b1714914c7 [INFO] running `Command { std: "docker" "start" "-a" "ae2ced31a7b143bb114dac9460de769e26ef0d653cd4b6e1da3db7b1714914c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae2ced31a7b143bb114dac9460de769e26ef0d653cd4b6e1da3db7b1714914c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae2ced31a7b143bb114dac9460de769e26ef0d653cd4b6e1da3db7b1714914c7", kill_on_drop: false }` [INFO] [stdout] ae2ced31a7b143bb114dac9460de769e26ef0d653cd4b6e1da3db7b1714914c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e43e592423fbd4b6d9f5717f314ade52080b3625e1244f15135ffe8400e147c [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" "7e43e592423fbd4b6d9f5717f314ade52080b3625e1244f15135ffe8400e147c", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking hack-vm v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/main.rs from 2018 edition to 2021 [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File` [INFO] [stdout] --> src/codegen.rs:39:20 [INFO] [stdout] | [INFO] [stdout] 39 | let out_file = File::create(file_name)?; [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 1 | use crate::File; [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::File; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/scanner.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/scanner.rs:3:24 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TokenKind::*` [INFO] [stdout] --> src/token.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | use TokenKind::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/main.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/codegen.rs:39:43 [INFO] [stdout] | [INFO] [stdout] 37 | / pub fn save(&mut self, file_name: &str) { [INFO] [stdout] 38 | | let file_name = String::from(file_name) + file_name; [INFO] [stdout] 39 | | let out_file = File::create(file_name)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a method that returns `()` [INFO] [stdout] 40 | | let mut writer = BufWriter::new(out_file); [INFO] [stdout] ... | [INFO] [stdout] 44 | | writer.flush()?; [INFO] [stdout] 45 | | } [INFO] [stdout] | |___- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual<_>` is not implemented for `()` [INFO] [stdout] note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/codegen.rs:42:40 [INFO] [stdout] | [INFO] [stdout] 37 | / pub fn save(&mut self, file_name: &str) { [INFO] [stdout] 38 | | let file_name = String::from(file_name) + file_name; [INFO] [stdout] 39 | | let out_file = File::create(file_name)?; [INFO] [stdout] 40 | | let mut writer = BufWriter::new(out_file); [INFO] [stdout] 41 | | for line in self.asm_list { [INFO] [stdout] 42 | | writer.write_all(line.as_bytes())?; [INFO] [stdout] | | ^ cannot use the `?` operator in a method that returns `()` [INFO] [stdout] 43 | | } [INFO] [stdout] 44 | | writer.flush()?; [INFO] [stdout] 45 | | } [INFO] [stdout] | |___- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/codegen.rs:44:19 [INFO] [stdout] | [INFO] [stdout] 37 | / pub fn save(&mut self, file_name: &str) { [INFO] [stdout] 38 | | let file_name = String::from(file_name) + file_name; [INFO] [stdout] 39 | | let out_file = File::create(file_name)?; [INFO] [stdout] 40 | | let mut writer = BufWriter::new(out_file); [INFO] [stdout] ... | [INFO] [stdout] 44 | | writer.flush()?; [INFO] [stdout] | | ^ cannot use the `?` operator in a method that returns `()` [INFO] [stdout] 45 | | } [INFO] [stdout] | |___- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hack-vm` due to 5 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File` [INFO] [stdout] --> src/codegen.rs:39:20 [INFO] [stdout] | [INFO] [stdout] 39 | let out_file = File::create(file_name)?; [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 1 | use crate::File; [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::File; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/scanner.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/scanner.rs:3:24 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TokenKind::*` [INFO] [stdout] --> src/token.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | use TokenKind::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/main.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/codegen.rs:39:43 [INFO] [stdout] | [INFO] [stdout] 37 | / pub fn save(&mut self, file_name: &str) { [INFO] [stdout] 38 | | let file_name = String::from(file_name) + file_name; [INFO] [stdout] 39 | | let out_file = File::create(file_name)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a method that returns `()` [INFO] [stdout] 40 | | let mut writer = BufWriter::new(out_file); [INFO] [stdout] ... | [INFO] [stdout] 44 | | writer.flush()?; [INFO] [stdout] 45 | | } [INFO] [stdout] | |___- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual<_>` is not implemented for `()` [INFO] [stdout] note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/codegen.rs:42:40 [INFO] [stdout] | [INFO] [stdout] 37 | / pub fn save(&mut self, file_name: &str) { [INFO] [stdout] 38 | | let file_name = String::from(file_name) + file_name; [INFO] [stdout] 39 | | let out_file = File::create(file_name)?; [INFO] [stdout] 40 | | let mut writer = BufWriter::new(out_file); [INFO] [stdout] 41 | | for line in self.asm_list { [INFO] [stdout] 42 | | writer.write_all(line.as_bytes())?; [INFO] [stdout] | | ^ cannot use the `?` operator in a method that returns `()` [INFO] [stdout] 43 | | } [INFO] [stdout] 44 | | writer.flush()?; [INFO] [stdout] 45 | | } [INFO] [stdout] | |___- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/codegen.rs:44:19 [INFO] [stdout] | [INFO] [stdout] 37 | / pub fn save(&mut self, file_name: &str) { [INFO] [stdout] 38 | | let file_name = String::from(file_name) + file_name; [INFO] [stdout] 39 | | let out_file = File::create(file_name)?; [INFO] [stdout] 40 | | let mut writer = BufWriter::new(out_file); [INFO] [stdout] ... | [INFO] [stdout] 44 | | writer.flush()?; [INFO] [stdout] | | ^ cannot use the `?` operator in a method that returns `()` [INFO] [stdout] 45 | | } [INFO] [stdout] | |___- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] [stderr] error: failed to migrate to next edition [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "7e43e592423fbd4b6d9f5717f314ade52080b3625e1244f15135ffe8400e147c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e43e592423fbd4b6d9f5717f314ade52080b3625e1244f15135ffe8400e147c", kill_on_drop: false }` [INFO] [stdout] 7e43e592423fbd4b6d9f5717f314ade52080b3625e1244f15135ffe8400e147c