[INFO] cloning repository https://github.com/udayj/wcr [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/udayj/wcr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fwcr", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fwcr'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] df6ff977920579779544181773b51acb3473005c [INFO] checking udayj/wcr against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fwcr" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/udayj/wcr on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/udayj/wcr [INFO] finished tweaking git repo https://github.com/udayj/wcr [INFO] tweaked toml for git repo https://github.com/udayj/wcr written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/udayj/wcr 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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded difflib v0.4.0 [INFO] [stderr] Downloaded termtree v0.4.0 [INFO] [stderr] Downloaded doc-comment v0.3.3 [INFO] [stderr] Downloaded normalize-line-endings v0.3.0 [INFO] [stderr] Downloaded predicates-tree v1.0.7 [INFO] [stderr] Downloaded float-cmp v0.9.0 [INFO] [stderr] Downloaded predicates-core v1.0.5 [INFO] [stderr] Downloaded assert_cmd v2.0.8 [INFO] [stderr] Downloaded getrandom v0.2.8 [INFO] [stderr] Downloaded serde v1.0.152 [INFO] [stderr] Downloaded regex-syntax v0.6.28 [INFO] [stderr] Downloaded bstr v1.3.0 [INFO] [stderr] Downloaded libc v0.2.139 [INFO] [stderr] Downloaded regex v1.7.1 [INFO] [stderr] Downloaded predicates v2.1.5 [INFO] [stderr] Downloaded once_cell v1.17.1 [INFO] [stderr] Downloaded wait-timeout v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8b598ddc0cd97061aaa0332fd142bb4664a641ea958f9185372f48a46cd9ee42 [INFO] running `Command { std: "docker" "start" "-a" "8b598ddc0cd97061aaa0332fd142bb4664a641ea958f9185372f48a46cd9ee42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8b598ddc0cd97061aaa0332fd142bb4664a641ea958f9185372f48a46cd9ee42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b598ddc0cd97061aaa0332fd142bb4664a641ea958f9185372f48a46cd9ee42", kill_on_drop: false }` [INFO] [stdout] 8b598ddc0cd97061aaa0332fd142bb4664a641ea958f9185372f48a46cd9ee42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 86229e1ef5a1bbce8a7a6e574388ca46836904653ff3fdf90ba77b96a70e0541 [INFO] running `Command { std: "docker" "start" "-a" "86229e1ef5a1bbce8a7a6e574388ca46836904653ff3fdf90ba77b96a70e0541", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking aho-corasick v0.7.20 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking predicates-core v1.0.5 [INFO] [stderr] Checking regex-syntax v0.6.28 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking once_cell v1.17.1 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking termtree v0.4.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking bstr v1.3.0 [INFO] [stderr] Checking predicates-tree v1.0.7 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking regex v1.7.1 [INFO] [stderr] Checking wcr v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking predicates v2.1.5 [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:164:8 [INFO] [stdout] | [INFO] [stdout] 164 | if (&config.files.len() > &1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 164 - if (&config.files.len() > &1) { [INFO] [stdout] 164 + if &config.files.len() > &1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:177:5 [INFO] [stdout] | [INFO] [stdout] 177 | file.read_to_string(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 177 | let _ = file.read_to_string(&mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking assert_cmd v2.0.8 [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:164:8 [INFO] [stdout] | [INFO] [stdout] 164 | if (&config.files.len() > &1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 164 - if (&config.files.len() > &1) { [INFO] [stdout] 164 + if &config.files.len() > &1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:177:5 [INFO] [stdout] | [INFO] [stdout] 177 | file.read_to_string(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 177 | let _ = file.read_to_string(&mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.04s [INFO] running `Command { std: "docker" "inspect" "86229e1ef5a1bbce8a7a6e574388ca46836904653ff3fdf90ba77b96a70e0541", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86229e1ef5a1bbce8a7a6e574388ca46836904653ff3fdf90ba77b96a70e0541", kill_on_drop: false }` [INFO] [stdout] 86229e1ef5a1bbce8a7a6e574388ca46836904653ff3fdf90ba77b96a70e0541 [INFO] checking udayj/wcr against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fwcr" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/udayj/wcr on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/udayj/wcr [INFO] finished tweaking git repo https://github.com/udayj/wcr [INFO] tweaked toml for git repo https://github.com/udayj/wcr written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/udayj/wcr 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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4d5894367e1edb0163ba0a78517f61434a1a9f74fc7269660dd3db062d338e78 [INFO] running `Command { std: "docker" "start" "-a" "4d5894367e1edb0163ba0a78517f61434a1a9f74fc7269660dd3db062d338e78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d5894367e1edb0163ba0a78517f61434a1a9f74fc7269660dd3db062d338e78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d5894367e1edb0163ba0a78517f61434a1a9f74fc7269660dd3db062d338e78", kill_on_drop: false }` [INFO] [stdout] 4d5894367e1edb0163ba0a78517f61434a1a9f74fc7269660dd3db062d338e78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 256b7e17ebc7bb5098520e965fce98ebeddc15b83c4c401494a4d0c58d3bc707 [INFO] running `Command { std: "docker" "start" "-a" "256b7e17ebc7bb5098520e965fce98ebeddc15b83c4c401494a4d0c58d3bc707", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Checking predicates-core v1.0.5 [INFO] [stderr] Checking regex-syntax v0.6.28 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking aho-corasick v0.7.20 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking termtree v0.4.0 [INFO] [stderr] Checking once_cell v1.17.1 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking bstr v1.3.0 [INFO] [stderr] Checking predicates-tree v1.0.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking regex v1.7.1 [INFO] [stderr] Checking predicates v2.1.5 [INFO] [stderr] Checking wcr v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking assert_cmd v2.0.8 [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:164:8 [INFO] [stdout] | [INFO] [stdout] 164 | if (&config.files.len() > &1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 164 - if (&config.files.len() > &1) { [INFO] [stdout] 164 + if &config.files.len() > &1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:177:5 [INFO] [stdout] | [INFO] [stdout] 177 | file.read_to_string(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 177 | let _ = file.read_to_string(&mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:164:8 [INFO] [stdout] | [INFO] [stdout] 164 | if (&config.files.len() > &1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 164 - if (&config.files.len() > &1) { [INFO] [stdout] 164 + if &config.files.len() > &1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:177:5 [INFO] [stdout] | [INFO] [stdout] 177 | file.read_to_string(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 177 | let _ = file.read_to_string(&mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.79s [INFO] running `Command { std: "docker" "inspect" "256b7e17ebc7bb5098520e965fce98ebeddc15b83c4c401494a4d0c58d3bc707", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "256b7e17ebc7bb5098520e965fce98ebeddc15b83c4c401494a4d0c58d3bc707", kill_on_drop: false }` [INFO] [stdout] 256b7e17ebc7bb5098520e965fce98ebeddc15b83c4c401494a4d0c58d3bc707