[INFO] cloning repository https://github.com/KmK33/minigrep [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KmK33/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKmK33%2Fminigrep", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKmK33%2Fminigrep'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e7d1e03d505ec9606a312322b58f855ef7ec0c8 [INFO] checking KmK33/minigrep against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKmK33%2Fminigrep" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/KmK33/minigrep [INFO] finished tweaking git repo https://github.com/KmK33/minigrep [INFO] tweaked toml for git repo https://github.com/KmK33/minigrep written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/KmK33/minigrep on toolchain 38c2997544af84fe301d600d6896397738163002 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/KmK33/minigrep 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" "+38c2997544af84fe301d600d6896397738163002" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 55bc4585b2534322f87762f19ff79d563404495cc402e0c03d5cb3a452fdb215 [INFO] running `Command { std: "docker" "start" "-a" "55bc4585b2534322f87762f19ff79d563404495cc402e0c03d5cb3a452fdb215", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "55bc4585b2534322f87762f19ff79d563404495cc402e0c03d5cb3a452fdb215", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55bc4585b2534322f87762f19ff79d563404495cc402e0c03d5cb3a452fdb215", kill_on_drop: false }` [INFO] [stdout] 55bc4585b2534322f87762f19ff79d563404495cc402e0c03d5cb3a452fdb215 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0810826035a6b1dde927e4d4d352c5444cc44e96284fd1ef2d456777a7422c89 [INFO] running `Command { std: "docker" "start" "-a" "0810826035a6b1dde927e4d4d352c5444cc44e96284fd1ef2d456777a7422c89", kill_on_drop: false }` [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] [FMTARGS] {"crate":"minigrep","loc":"src/lib.rs:43:21","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"minigrep","loc":"src/lib.rs:43:21","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stdout] error[E0599]: no method named `len` found for type parameter `impl Iterator` in the current scope [INFO] [stdout] --> src/lib.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn build(mut args: impl Iterator) -> Result{ [INFO] [stdout] | ---------------------------- method `len` not found for this type parameter [INFO] [stdout] 13 | args.next(); [INFO] [stdout] 14 | if args.len() < 3 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the type parameter is bounded by the trait [INFO] [stdout] help: there is a method `le` with a similar name, but with different arguments [INFO] [stdout] --> /rustc/38c2997544af84fe301d600d6896397738163002/library/core/src/iter/traits/iterator.rs:4004:4 [INFO] [stdout] help: the following trait defines an item `len`, perhaps you need to restrict type parameter `impl Iterator` with it: [INFO] [stdout] | [INFO] [stdout] 12 | pub fn build(mut args: impl Iterator + ExactSizeIterator) -> Result{ [INFO] [stdout] | +++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `len` found for type parameter `impl Iterator` in the current scope [INFO] [stdout] --> src/lib.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn build(mut args: impl Iterator) -> Result{ [INFO] [stdout] | ---------------------------- method `len` not found for this type parameter [INFO] [stdout] 13 | args.next(); [INFO] [stdout] 14 | if args.len() < 3 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the type parameter is bounded by the trait [INFO] [stdout] help: there is a method `le` with a similar name, but with different arguments [INFO] [stdout] --> /rustc/38c2997544af84fe301d600d6896397738163002/library/core/src/iter/traits/iterator.rs:4004:4 [INFO] [stdout] help: the following trait defines an item `len`, perhaps you need to restrict type parameter `impl Iterator` with it: [INFO] [stdout] | [INFO] [stdout] 12 | pub fn build(mut args: impl Iterator + ExactSizeIterator) -> Result{ [INFO] [stdout] | +++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `minigrep` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `minigrep` (lib test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "0810826035a6b1dde927e4d4d352c5444cc44e96284fd1ef2d456777a7422c89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0810826035a6b1dde927e4d4d352c5444cc44e96284fd1ef2d456777a7422c89", kill_on_drop: false }` [INFO] [stdout] 0810826035a6b1dde927e4d4d352c5444cc44e96284fd1ef2d456777a7422c89