[INFO] cloning repository https://github.com/sutetako/rust_learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sutetako/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsutetako%2Frust_learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsutetako%2Frust_learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 69ae47d04f313d24b1b40ef9c7ea7c4f9920a3d0 [INFO] testing sutetako/rust_learning against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsutetako%2Frust_learning" "/workspace/builds/worker-40/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sutetako/rust_learning on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sutetako/rust_learning [INFO] finished tweaking git repo https://github.com/sutetako/rust_learning [INFO] tweaked toml for git repo https://github.com/sutetako/rust_learning written to /workspace/builds/worker-40/source/Cargo.toml [INFO] crate git repo https://github.com/sutetako/rust_learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a52f7b3718b80d4110da0ede995e313515b7020b17175ec61f815b20a0eee7a6 [INFO] running `Command { std: "docker" "start" "-a" "a52f7b3718b80d4110da0ede995e313515b7020b17175ec61f815b20a0eee7a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a52f7b3718b80d4110da0ede995e313515b7020b17175ec61f815b20a0eee7a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a52f7b3718b80d4110da0ede995e313515b7020b17175ec61f815b20a0eee7a6", kill_on_drop: false }` [INFO] [stdout] a52f7b3718b80d4110da0ede995e313515b7020b17175ec61f815b20a0eee7a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d93112bfaca9b6fd723b9b9a371098f9b0c8087e2df4a84111726ef10f4d95d0 [INFO] running `Command { std: "docker" "start" "-a" "d93112bfaca9b6fd723b9b9a371098f9b0c8087e2df4a84111726ef10f4d95d0", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Compiling serde v1.0.99 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling serde_json v1.0.40 [INFO] [stderr] Compiling rust_learning v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 26s [INFO] running `Command { std: "docker" "inspect" "d93112bfaca9b6fd723b9b9a371098f9b0c8087e2df4a84111726ef10f4d95d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d93112bfaca9b6fd723b9b9a371098f9b0c8087e2df4a84111726ef10f4d95d0", kill_on_drop: false }` [INFO] [stdout] d93112bfaca9b6fd723b9b9a371098f9b0c8087e2df4a84111726ef10f4d95d0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b978c088516091cf23a754f7e5d54015e9196b80813b6912709abe9edef9ad7 [INFO] running `Command { std: "docker" "start" "-a" "0b978c088516091cf23a754f7e5d54015e9196b80813b6912709abe9edef9ad7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust_learning v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:245:6 [INFO] [stdout] | [INFO] [stdout] 245 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:375:6 [INFO] [stdout] | [INFO] [stdout] 375 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:1814:32 [INFO] [stdout] | [INFO] [stdout] 1814 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 1814 - fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] 1814 + fn say_hello(out: &mut dyn Write) -> std::io::Result<()> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `core::str::::trim_right_matches`: superseded by `trim_end_matches` [INFO] [stdout] --> src/main.rs:1469:27 [INFO] [stdout] | [INFO] [stdout] 1469 | self.plural().trim_right_matches('s') [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:1840:26 [INFO] [stdout] | [INFO] [stdout] 1840 | let writer: &mut Write = &mut buf; // ok [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 1840 - let writer: &mut Write = &mut buf; // ok [INFO] [stdout] 1840 + let writer: &mut dyn Write = &mut buf; // ok [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0109]: type arguments are not allowed for this type [INFO] [stdout] --> src/main.rs:1854:15 [INFO] [stdout] | [INFO] [stdout] 1854 | buf::.write_all(b"hello").expect("error"); [INFO] [stdout] | ^^^ type argument not allowed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0109`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_learning` due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "0b978c088516091cf23a754f7e5d54015e9196b80813b6912709abe9edef9ad7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b978c088516091cf23a754f7e5d54015e9196b80813b6912709abe9edef9ad7", kill_on_drop: false }` [INFO] [stdout] 0b978c088516091cf23a754f7e5d54015e9196b80813b6912709abe9edef9ad7