[INFO] cloning repository https://github.com/steshaw/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steshaw/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteshaw%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteshaw%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 06b46229ca0dd5b5fb874746d6ace8665151b11f [INFO] checking steshaw/rustlings against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteshaw%2Frustlings" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/steshaw/rustlings on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/steshaw/rustlings [INFO] finished tweaking git repo https://github.com/steshaw/rustlings [INFO] tweaked toml for git repo https://github.com/steshaw/rustlings written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/steshaw/rustlings 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded predicates v1.0.1 [INFO] [stderr] Downloaded float-cmp v0.4.0 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded normalize-line-endings v0.2.2 [INFO] [stderr] Downloaded notify v4.0.12 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded same-file v1.0.4 [INFO] [stderr] Downloaded walkdir v2.2.7 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded clicolors-control v1.0.0 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded lock_api v0.2.0 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded encode_unicode v0.3.5 [INFO] [stderr] Downloaded parking_lot_core v0.5.0 [INFO] [stderr] Downloaded difference v2.0.0 [INFO] [stderr] Downloaded parking_lot v0.8.0 [INFO] [stderr] Downloaded inotify v0.6.1 [INFO] [stderr] Downloaded mio-extras v2.0.5 [INFO] [stderr] Downloaded clicolors-control v0.2.0 [INFO] [stderr] Downloaded indicatif v0.9.0 [INFO] [stderr] Downloaded console v0.7.5 [INFO] [stderr] Downloaded inotify-sys v0.1.3 [INFO] [stderr] Downloaded console v0.6.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 839ca0e03c5da1e23c033e78be8a3d888230621d19b73e75fbdd4583f17dcf91 [INFO] running `Command { std: "docker" "start" "-a" "839ca0e03c5da1e23c033e78be8a3d888230621d19b73e75fbdd4583f17dcf91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "839ca0e03c5da1e23c033e78be8a3d888230621d19b73e75fbdd4583f17dcf91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "839ca0e03c5da1e23c033e78be8a3d888230621d19b73e75fbdd4583f17dcf91", kill_on_drop: false }` [INFO] [stdout] 839ca0e03c5da1e23c033e78be8a3d888230621d19b73e75fbdd4583f17dcf91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1c4e9fc780c7a479a9a8e1a7ea8466dbcd97a3fe968d3d183b4d2a6eb7de6de4 [INFO] running `Command { std: "docker" "start" "-a" "1c4e9fc780c7a479a9a8e1a7ea8466dbcd97a3fe968d3d183b4d2a6eb7de6de4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking regex v1.1.6 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking same-file v1.0.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking lock_api v0.2.0 [INFO] [stderr] Checking normalize-line-endings v0.2.2 [INFO] [stderr] Checking walkdir v2.2.7 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking inotify-sys v0.1.3 [INFO] [stderr] Checking clicolors-control v0.2.0 [INFO] [stderr] Checking filetime v0.2.5 [INFO] [stderr] Checking inotify v0.6.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking float-cmp v0.4.0 [INFO] [stderr] Checking predicates v1.0.1 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking notify v4.0.12 [INFO] [stderr] Checking console v0.7.5 [INFO] [stderr] Checking console v0.6.2 [INFO] [stderr] Checking indicatif v0.9.0 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking rustlings v2.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> examples/from_into.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Person { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 7 | age: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `test3` [INFO] [stdout] --> examples/test3.rs:27:2 [INFO] [stdout] | [INFO] [stdout] 27 | } [INFO] [stdout] | ^ consider adding a `main` function to `examples/test3.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rustlings` (example "test3") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> examples/from_str.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Person { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | age: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fact_recursive` is never used [INFO] [stdout] --> examples/iterators4.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn fact_recursive(n: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fact_fold` is never used [INFO] [stdout] --> examples/iterators4.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn fact_fold(n: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> examples/try_from_into.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Person { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | age: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> examples/enums3.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> examples/enums3.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `State` is never constructed [INFO] [stdout] --> examples/enums3.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `change_color`, `quit`, `echo`, `move_position`, and `process` are never used [INFO] [stdout] --> examples/enums3.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 26 | impl State { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] 27 | fn change_color(&mut self, color: (u8, u8, u8)) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | fn quit(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | fn echo(&self, s: String) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn move_position(&mut self, p: Point) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn process(&mut self, message: Message) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1c4e9fc780c7a479a9a8e1a7ea8466dbcd97a3fe968d3d183b4d2a6eb7de6de4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c4e9fc780c7a479a9a8e1a7ea8466dbcd97a3fe968d3d183b4d2a6eb7de6de4", kill_on_drop: false }` [INFO] [stdout] 1c4e9fc780c7a479a9a8e1a7ea8466dbcd97a3fe968d3d183b4d2a6eb7de6de4 [INFO] checking steshaw/rustlings against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteshaw%2Frustlings" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/steshaw/rustlings on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/steshaw/rustlings [INFO] finished tweaking git repo https://github.com/steshaw/rustlings [INFO] tweaked toml for git repo https://github.com/steshaw/rustlings written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/steshaw/rustlings 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8b60984701e640b9ca611d7b8425b65504311159c8c27f566c4344277e3b2f3e [INFO] running `Command { std: "docker" "start" "-a" "8b60984701e640b9ca611d7b8425b65504311159c8c27f566c4344277e3b2f3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8b60984701e640b9ca611d7b8425b65504311159c8c27f566c4344277e3b2f3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b60984701e640b9ca611d7b8425b65504311159c8c27f566c4344277e3b2f3e", kill_on_drop: false }` [INFO] [stdout] 8b60984701e640b9ca611d7b8425b65504311159c8c27f566c4344277e3b2f3e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a676a7d0de359ce3ad818e89507f44e988361b4ccdd68960261c78ba58642dfe [INFO] running `Command { std: "docker" "start" "-a" "a676a7d0de359ce3ad818e89507f44e988361b4ccdd68960261c78ba58642dfe", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] skipping non-2021 edition `2018` [INFO] running `Command { std: "docker" "inspect" "a676a7d0de359ce3ad818e89507f44e988361b4ccdd68960261c78ba58642dfe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a676a7d0de359ce3ad818e89507f44e988361b4ccdd68960261c78ba58642dfe", kill_on_drop: false }` [INFO] [stdout] a676a7d0de359ce3ad818e89507f44e988361b4ccdd68960261c78ba58642dfe