[INFO] cloning repository https://github.com/lucasfcosta/echor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucasfcosta/echor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasfcosta%2Fechor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasfcosta%2Fechor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40fcfa1ee801197aeff88c7988e8525378866d75
[INFO] checking lucasfcosta/echor against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasfcosta%2Fechor" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucasfcosta/echor on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucasfcosta/echor
[INFO] finished tweaking git repo https://github.com/lucasfcosta/echor
[INFO] tweaked toml for git repo https://github.com/lucasfcosta/echor written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/lucasfcosta/echor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0534c2ea84aff73c89f3cbd1ca5853e2b24689a58b459be75336c2cffefeb224
[INFO] running `Command { std: "docker" "start" "-a" "0534c2ea84aff73c89f3cbd1ca5853e2b24689a58b459be75336c2cffefeb224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0534c2ea84aff73c89f3cbd1ca5853e2b24689a58b459be75336c2cffefeb224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0534c2ea84aff73c89f3cbd1ca5853e2b24689a58b459be75336c2cffefeb224", kill_on_drop: false }`
[INFO] [stdout] 0534c2ea84aff73c89f3cbd1ca5853e2b24689a58b459be75336c2cffefeb224
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0c268576c94ed356dfaa54dc162b658b68ede1dc66ca238b5161ef27bbab5b6
[INFO] running `Command { std: "docker" "start" "-a" "d0c268576c94ed356dfaa54dc162b658b68ede1dc66ca238b5161ef27bbab5b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking predicates-tree v1.0.3
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking echor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates v2.0.2
[INFO] [stderr]     Checking assert_cmd v1.0.8
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Commang`
[INFO] [stdout]  --> tests/cli.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Commang::cargo_bin("echor")?
[INFO] [stdout]   |     ^^^^^^^ use of undeclared type `Commang`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TestResult` in this scope
[INFO] [stdout]  --> tests/cli.rs:5:47
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn run(args: &[&str], expected_file: &str) -> TestResult {
[INFO] [stdout]   |                                               ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> tests/cli.rs:17:42
[INFO] [stdout]     |
[INFO] [stdout] 16  | / fn dies_no_args() {
[INFO] [stdout] 17  | |     let cmd = Command::cargo_bin("echor")?;
[INFO] [stdout]     | |                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 18  | |     cmd.assert()
[INFO] [stdout] 19  | |         .failure()
[INFO] [stdout] 20  | |         .stderr(predicate::str::contains("USAGE"));
[INFO] [stdout] 21  | |     Ok(())
[INFO] [stdout] 22  | | }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Result<Infallible, CargoError>>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> tests/cli.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                    found enum `Result<(), _>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Ok(());
[INFO] [stdout]    |           +
[INFO] [stdout] help: try adding a return type
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn dies_no_args() -> Result<(), _> {
[INFO] [stdout]    |                   ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `echor` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "d0c268576c94ed356dfaa54dc162b658b68ede1dc66ca238b5161ef27bbab5b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c268576c94ed356dfaa54dc162b658b68ede1dc66ca238b5161ef27bbab5b6", kill_on_drop: false }`
[INFO] [stdout] d0c268576c94ed356dfaa54dc162b658b68ede1dc66ca238b5161ef27bbab5b6