[INFO] cloning repository https://github.com/robdimsdale/wordsquare [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robdimsdale/wordsquare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdimsdale%2Fwordsquare", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdimsdale%2Fwordsquare'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a5bb9681c3228f4219e6779a9069374575179ad [INFO] checking robdimsdale/wordsquare against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobdimsdale%2Fwordsquare" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/robdimsdale/wordsquare on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/robdimsdale/wordsquare [INFO] finished tweaking git repo https://github.com/robdimsdale/wordsquare [INFO] tweaked toml for git repo https://github.com/robdimsdale/wordsquare written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/robdimsdale/wordsquare already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a3695ff71fd6734e0fe5b33ed8aac508f7ddb6e53651e48e79000620d92095c8 [INFO] running `Command { std: "docker" "start" "-a" "a3695ff71fd6734e0fe5b33ed8aac508f7ddb6e53651e48e79000620d92095c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3695ff71fd6734e0fe5b33ed8aac508f7ddb6e53651e48e79000620d92095c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3695ff71fd6734e0fe5b33ed8aac508f7ddb6e53651e48e79000620d92095c8", kill_on_drop: false }` [INFO] [stdout] a3695ff71fd6734e0fe5b33ed8aac508f7ddb6e53651e48e79000620d92095c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76fffea39c33f620e0c5ca7f845cb9a7ad258db050b1e45d0cdab2e643203470 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "76fffea39c33f620e0c5ca7f845cb9a7ad258db050b1e45d0cdab2e643203470", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling rayon-core v1.7.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Compiling serde_json v1.0.56 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling rayon v1.3.1 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Checking crossbeam-utils v0.7.2 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking crossbeam-epoch v0.8.2 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking wordsearch v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/lib.rs:137:41 [INFO] [stdout] | [INFO] [stdout] 137 | row.clone().into_iter().intersperse(' ').collect::() [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking criterion v0.3.3 [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/lib.rs:137:41 [INFO] [stdout] | [INFO] [stdout] 137 | row.clone().into_iter().intersperse(' ').collect::() [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 47.30s [INFO] running `Command { std: "docker" "inspect" "76fffea39c33f620e0c5ca7f845cb9a7ad258db050b1e45d0cdab2e643203470", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76fffea39c33f620e0c5ca7f845cb9a7ad258db050b1e45d0cdab2e643203470", kill_on_drop: false }` [INFO] [stdout] 76fffea39c33f620e0c5ca7f845cb9a7ad258db050b1e45d0cdab2e643203470