[INFO] cloning repository https://github.com/deavid/crappylinkedlists [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deavid/crappylinkedlists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeavid%2Fcrappylinkedlists", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeavid%2Fcrappylinkedlists'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dfdadb1df2118974621525dfc64e31efcb567ebf [INFO] checking deavid/crappylinkedlists against try#b2fb67b8b6007ced9ad3f3b752a6fec899e7859c for pr-138915 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeavid%2Fcrappylinkedlists" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/deavid/crappylinkedlists on toolchain b2fb67b8b6007ced9ad3f3b752a6fec899e7859c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/deavid/crappylinkedlists [INFO] finished tweaking git repo https://github.com/deavid/crappylinkedlists [INFO] tweaked toml for git repo https://github.com/deavid/crappylinkedlists written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/deavid/crappylinkedlists 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" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cpuprofiler v0.0.4 [INFO] [stderr] Downloaded backtrace-sys v0.1.36 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a3b794065354647fc91b1c18f14f8c9ba889ae111c63cd642cf36b7f6552ce31 [INFO] running `Command { std: "docker" "start" "-a" "a3b794065354647fc91b1c18f14f8c9ba889ae111c63cd642cf36b7f6552ce31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3b794065354647fc91b1c18f14f8c9ba889ae111c63cd642cf36b7f6552ce31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3b794065354647fc91b1c18f14f8c9ba889ae111c63cd642cf36b7f6552ce31", kill_on_drop: false }` [INFO] [stdout] a3b794065354647fc91b1c18f14f8c9ba889ae111c63cd642cf36b7f6552ce31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23c6ef1b866fde26da5a50bedcf2f5cb0ffb2d31e0e33ffb1c109d3c8fd4923c [INFO] running `Command { std: "docker" "start" "-a" "23c6ef1b866fde26da5a50bedcf2f5cb0ffb2d31e0e33ffb1c109d3c8fd4923c", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.52 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking bencher v0.1.5 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling cpuprofiler v0.0.4 [INFO] [stderr] Compiling backtrace-sys v0.1.36 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking crappylinkedlists v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/linked3/mod.rs:99:30 [INFO] [stdout] | [INFO] [stdout] 72 | impl<'a> LinkedList1<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] ... [INFO] [stdout] 99 | pub fn iter(&'a self) -> IterLinkedList1 { [INFO] [stdout] | ^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/linked3/mod.rs:99:30 [INFO] [stdout] | [INFO] [stdout] 72 | impl<'a> LinkedList1<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] ... [INFO] [stdout] 99 | pub fn iter(&'a self) -> IterLinkedList1 { [INFO] [stdout] | ^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked5/mod.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | let mut nodes: Vec>> = v [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked5/mod.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | let mut nodes: Vec>> = v [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s [INFO] running `Command { std: "docker" "inspect" "23c6ef1b866fde26da5a50bedcf2f5cb0ffb2d31e0e33ffb1c109d3c8fd4923c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23c6ef1b866fde26da5a50bedcf2f5cb0ffb2d31e0e33ffb1c109d3c8fd4923c", kill_on_drop: false }` [INFO] [stdout] 23c6ef1b866fde26da5a50bedcf2f5cb0ffb2d31e0e33ffb1c109d3c8fd4923c