[INFO] cloning repository https://github.com/LightningCreations/cargo-autobuild
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LightningCreations/cargo-autobuild" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLightningCreations%2Fcargo-autobuild", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLightningCreations%2Fcargo-autobuild'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2074624b520b2f5853c31e9bdd0a61268f059310
[INFO] checking LightningCreations/cargo-autobuild against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLightningCreations%2Fcargo-autobuild" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LightningCreations/cargo-autobuild on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LightningCreations/cargo-autobuild
[INFO] finished tweaking git repo https://github.com/LightningCreations/cargo-autobuild
[INFO] tweaked toml for git repo https://github.com/LightningCreations/cargo-autobuild written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LightningCreations/cargo-autobuild 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" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ba8d1fd743185489dcb165fcfd9bb225e505582efb5b6a16d12ee0b4bdb548b
[INFO] running `Command { std: "docker" "start" "-a" "3ba8d1fd743185489dcb165fcfd9bb225e505582efb5b6a16d12ee0b4bdb548b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ba8d1fd743185489dcb165fcfd9bb225e505582efb5b6a16d12ee0b4bdb548b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba8d1fd743185489dcb165fcfd9bb225e505582efb5b6a16d12ee0b4bdb548b", kill_on_drop: false }`
[INFO] [stdout] 3ba8d1fd743185489dcb165fcfd9bb225e505582efb5b6a16d12ee0b4bdb548b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7ca6ed65fbb3bc98c160474dc53faba1f6b52a620b75521bab31cbfd9d9d0dc
[INFO] running `Command { std: "docker" "start" "-a" "f7ca6ed65fbb3bc98c160474dc53faba1f6b52a620b75521bab31cbfd9d9d0dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking target-tuples v0.5.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking cargo-autobuild v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `OsStr` in this scope
[INFO] [stdout]  --> src/wrappers.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn rustc(args: impl Iterator<Item: AsRef<OsStr>>) -> std::io::Result<i32> {}
[INFO] [stdout]   |                                              ^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::ffi::OsStr;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: associated type bounds are unstable
[INFO] [stdout]  --> src/wrappers.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn rustc(args: impl Iterator<Item: AsRef<OsStr>>) -> std::io::Result<i32> {}
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
[INFO] [stdout]   = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]   --> src/tests.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fs::File,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::config::Step`
[INFO] [stdout]   --> src/tests.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     use crate::config::Step;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `OsStr` in this scope
[INFO] [stdout]  --> src/wrappers.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn rustc(args: impl Iterator<Item: AsRef<OsStr>>) -> std::io::Result<i32> {}
[INFO] [stdout]   |                                              ^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::ffi::OsStr;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: associated type bounds are unstable
[INFO] [stdout]  --> src/wrappers.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn rustc(args: impl Iterator<Item: AsRef<OsStr>>) -> std::io::Result<i32> {}
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
[INFO] [stdout]   = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]   --> src/tests.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fs::File,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::config::Step`
[INFO] [stdout]   --> src/tests.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     use crate::config::Step;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/wrappers.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn rustc(args: impl Iterator<Item: AsRef<OsStr>>) -> std::io::Result<i32> {}
[INFO] [stdout]   |        -----                                             ^^^^^^^^^^^^^^^^^^^^ expected `Result<i32, Error>`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout]   = note:   expected enum `Result<i32, std::io::Error>`
[INFO] [stdout]           found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/wrappers.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn rustc(args: impl Iterator<Item: AsRef<OsStr>>) -> std::io::Result<i32> {}
[INFO] [stdout]   |        -----                                             ^^^^^^^^^^^^^^^^^^^^ expected `Result<i32, Error>`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout]   = note:   expected enum `Result<i32, std::io::Error>`
[INFO] [stdout]           found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-autobuild` (bin "cargo-autobuild") due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cargo-autobuild` (bin "cargo-autobuild" test) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f7ca6ed65fbb3bc98c160474dc53faba1f6b52a620b75521bab31cbfd9d9d0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ca6ed65fbb3bc98c160474dc53faba1f6b52a620b75521bab31cbfd9d9d0dc", kill_on_drop: false }`
[INFO] [stdout] f7ca6ed65fbb3bc98c160474dc53faba1f6b52a620b75521bab31cbfd9d9d0dc
