[INFO] cloning repository https://github.com/frostRed/head_first_design_patterns_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frostRed/head_first_design_patterns_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfrostRed%2Fhead_first_design_patterns_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfrostRed%2Fhead_first_design_patterns_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 779447adaf64ad62404312d51b8363b8602c3552 [INFO] checking frostRed/head_first_design_patterns_rust against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfrostRed%2Fhead_first_design_patterns_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/frostRed/head_first_design_patterns_rust on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/frostRed/head_first_design_patterns_rust [INFO] finished tweaking git repo https://github.com/frostRed/head_first_design_patterns_rust [INFO] tweaked toml for git repo https://github.com/frostRed/head_first_design_patterns_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/frostRed/head_first_design_patterns_rust 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lazy_static v1.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] df8639197163e87757aa1e232b8a010f0eb4dd90289892e17acbb34bf8314f15 [INFO] running `Command { std: "docker" "start" "-a" "df8639197163e87757aa1e232b8a010f0eb4dd90289892e17acbb34bf8314f15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "df8639197163e87757aa1e232b8a010f0eb4dd90289892e17acbb34bf8314f15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df8639197163e87757aa1e232b8a010f0eb4dd90289892e17acbb34bf8314f15", kill_on_drop: false }` [INFO] [stdout] df8639197163e87757aa1e232b8a010f0eb4dd90289892e17acbb34bf8314f15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 46593b8285eee1b7c14be3c4bc48e7ede153036b46619e2e24d28a0df58e3d90 [INFO] running `Command { std: "docker" "start" "-a" "46593b8285eee1b7c14be3c4bc48e7ede153036b46619e2e24d28a0df58e3d90", kill_on_drop: false }` [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking head_first_design_patterns v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0635]: unknown feature `vec_remove_item` [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(vec_remove_item)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `vec_remove_item` [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(vec_remove_item)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec>>` in the current scope [INFO] [stdout] --> src/observer.rs:57:24 [INFO] [stdout] | [INFO] [stdout] 57 | self.observers.remove_item(&o) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: there is a method `remove` with a similar name [INFO] [stdout] | [INFO] [stdout] 57 | self.observers.remove(&o) [INFO] [stdout] | ~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec>>` in the current scope [INFO] [stdout] --> src/observer.rs:57:24 [INFO] [stdout] | [INFO] [stdout] 57 | self.observers.remove_item(&o) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: there is a method `remove` with a similar name [INFO] [stdout] | [INFO] [stdout] 57 | self.observers.remove(&o) [INFO] [stdout] | ~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0599, E0635. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `head_first_design_patterns` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0599, E0635. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `head_first_design_patterns` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "46593b8285eee1b7c14be3c4bc48e7ede153036b46619e2e24d28a0df58e3d90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46593b8285eee1b7c14be3c4bc48e7ede153036b46619e2e24d28a0df58e3d90", kill_on_drop: false }` [INFO] [stdout] 46593b8285eee1b7c14be3c4bc48e7ede153036b46619e2e24d28a0df58e3d90 [INFO] checking frostRed/head_first_design_patterns_rust against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfrostRed%2Fhead_first_design_patterns_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/frostRed/head_first_design_patterns_rust on toolchain dae34b759e282c069aa28752564694effd121a63 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/frostRed/head_first_design_patterns_rust [INFO] finished tweaking git repo https://github.com/frostRed/head_first_design_patterns_rust [INFO] tweaked toml for git repo https://github.com/frostRed/head_first_design_patterns_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/frostRed/head_first_design_patterns_rust 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f6c2683e2e8f0f0ccb778bcb0afe8d8b38382fd6ea066ee61e21cfe25a52dea4 [INFO] running `Command { std: "docker" "start" "-a" "f6c2683e2e8f0f0ccb778bcb0afe8d8b38382fd6ea066ee61e21cfe25a52dea4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f6c2683e2e8f0f0ccb778bcb0afe8d8b38382fd6ea066ee61e21cfe25a52dea4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6c2683e2e8f0f0ccb778bcb0afe8d8b38382fd6ea066ee61e21cfe25a52dea4", kill_on_drop: false }` [INFO] [stdout] f6c2683e2e8f0f0ccb778bcb0afe8d8b38382fd6ea066ee61e21cfe25a52dea4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04764fa635d0f9e314b7874f392323384ebd35b06ef751ac6c8058948eacca47 [INFO] running `Command { std: "docker" "start" "-a" "04764fa635d0f9e314b7874f392323384ebd35b06ef751ac6c8058948eacca47", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] skipping non-2021 edition `2018` [INFO] running `Command { std: "docker" "inspect" "04764fa635d0f9e314b7874f392323384ebd35b06ef751ac6c8058948eacca47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04764fa635d0f9e314b7874f392323384ebd35b06ef751ac6c8058948eacca47", kill_on_drop: false }` [INFO] [stdout] 04764fa635d0f9e314b7874f392323384ebd35b06ef751ac6c8058948eacca47