[INFO] updating cached repository https://github.com/Diegovsky/fakewrite [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 506781a04b051a9579878467cecd0a1360f85919 [INFO] testing Diegovsky/fakewrite against 1.45.2 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiegovsky%2Ffakewrite" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Diegovsky/fakewrite on toolchain 1.45.2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Diegovsky/fakewrite [INFO] finished tweaking git repo https://github.com/Diegovsky/fakewrite [INFO] tweaked toml for git repo https://github.com/Diegovsky/fakewrite written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/Diegovsky/fakewrite already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb234e5247bf1c754bbd230cca391f5b455dc716f0a4241a831bdb53aba2fc7f [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" "bb234e5247bf1c754bbd230cca391f5b455dc716f0a4241a831bdb53aba2fc7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb234e5247bf1c754bbd230cca391f5b455dc716f0a4241a831bdb53aba2fc7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb234e5247bf1c754bbd230cca391f5b455dc716f0a4241a831bdb53aba2fc7f", kill_on_drop: false }` [INFO] [stdout] bb234e5247bf1c754bbd230cca391f5b455dc716f0a4241a831bdb53aba2fc7f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9556c58d8f5aceaa478cd189ef1caf9e17f9ed577511b92a66d822cf7e05a2cd [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" "9556c58d8f5aceaa478cd189ef1caf9e17f9ed577511b92a66d822cf7e05a2cd", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling fakewrite v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(process_exitcode_placeholder)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CString` [INFO] [stdout] --> src/main.rs:2:22 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ffi::{CStr, CString}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::SimpleError` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use utils::SimpleError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `std::string::String: std::convert::From` is not satisfied [INFO] [stdout] --> src/main.rs:28:22 [INFO] [stdout] | [INFO] [stdout] 28 | Some(val) => String::from(val), [INFO] [stdout] | ^^^^^^^^^^^^ the trait `std::convert::From` is not implemented for `std::string::String` [INFO] [stdout] | [INFO] [stdout] = help: the following implementations were found: [INFO] [stdout] > [INFO] [stdout] > [INFO] [stdout] > [INFO] [stdout] >> [INFO] [stdout] >> [INFO] [stdout] = note: required by `std::convert::From::from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | execv(CStr::from("")) [INFO] [stdout] | ^^^^^ -------------- supplied 1 argument [INFO] [stdout] | | [INFO] [stdout] | expected 2 arguments [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `[i8]` cannot be known at compilation time [INFO] [stdout] --> src/main.rs:32:15 [INFO] [stdout] | [INFO] [stdout] 32 | execv(CStr::from("")) [INFO] [stdout] | ^^^^^^^^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: within `std::ffi::CStr`, the trait `std::marker::Sized` is not implemented for `[i8]` [INFO] [stdout] = note: to learn more, visit [INFO] [stdout] = note: required because it appears within the type `std::ffi::CStr` [INFO] [stdout] = note: required by `std::convert::From::from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:32:26 [INFO] [stdout] | [INFO] [stdout] 32 | execv(CStr::from("")) [INFO] [stdout] | ^^ expected struct `std::ffi::CStr`, found `&str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | execv(CStr::from("")) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^- help: try adding a semicolon: `;` [INFO] [stdout] | | [INFO] [stdout] | expected `()`, found enum `std::result::Result` [INFO] [stdout] | [INFO] [stdout] = note: expected unit type `()` [INFO] [stdout] found enum `std::result::Result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 31 | / loop { [INFO] [stdout] 32 | | execv(CStr::from("")) [INFO] [stdout] 33 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 34 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0061, E0277, E0308, E0554. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0061`. [INFO] [stdout] [INFO] [stderr] error: could not compile `fakewrite`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "9556c58d8f5aceaa478cd189ef1caf9e17f9ed577511b92a66d822cf7e05a2cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9556c58d8f5aceaa478cd189ef1caf9e17f9ed577511b92a66d822cf7e05a2cd", kill_on_drop: false }` [INFO] [stdout] 9556c58d8f5aceaa478cd189ef1caf9e17f9ed577511b92a66d822cf7e05a2cd