[INFO] fetching crate clanker 0.7.0... [INFO] checking clanker-0.7.0 against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160 [INFO] extracting crate clanker 0.7.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate clanker 0.7.0 on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate clanker 0.7.0 [INFO] finished tweaking crates.io crate clanker 0.7.0 [INFO] tweaked toml for crates.io crate clanker 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate clanker 0.7.0 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 545facfb54c27bdfe142c6b027395db72083072fce415ce338a53e81065d4f08 [INFO] running `Command { std: "docker" "start" "-a" "545facfb54c27bdfe142c6b027395db72083072fce415ce338a53e81065d4f08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "545facfb54c27bdfe142c6b027395db72083072fce415ce338a53e81065d4f08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "545facfb54c27bdfe142c6b027395db72083072fce415ce338a53e81065d4f08", kill_on_drop: false }` [INFO] [stdout] 545facfb54c27bdfe142c6b027395db72083072fce415ce338a53e81065d4f08 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a6f0c95153ba2ff4fd223c3cfe16a51f1916f409f6eed90911d54765b6ec3252 [INFO] running `Command { std: "docker" "start" "-a" "a6f0c95153ba2ff4fd223c3cfe16a51f1916f409f6eed90911d54765b6ec3252", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling pkg-config v0.3.16 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking unicode-segmentation v1.6.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling jobserver v0.1.17 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Compiling cc v1.0.45 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling libgit2-sys v0.12.3+1.0.0 [INFO] [stderr] Checking clanker v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] error: call to `.borrow()` on a reference in this situation does nothing [INFO] [stdout] --> src/compress.rs:125:50 [INFO] [stdout] | [INFO] [stdout] 125 | compressed.push_str(component_str.borrow()); [INFO] [stdout] | ^^^^^^^^^ unnecessary method call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[deny(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `clanker` (bin "clanker") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: call to `.borrow()` on a reference in this situation does nothing [INFO] [stdout] --> src/compress.rs:125:50 [INFO] [stdout] | [INFO] [stdout] 125 | compressed.push_str(component_str.borrow()); [INFO] [stdout] | ^^^^^^^^^ unnecessary method call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[deny(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/compress/gct.rs:83:60 [INFO] [stdout] | [INFO] [stdout] 83 | let trie: GraphemeClusterTrie = ["aa", "ab", "ac"].into_iter().map(|&s| s).collect(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 83 | let trie: GraphemeClusterTrie = ["aa", "ab", "ac"].iter().map(|&s| s).collect(); [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 83 | let trie: GraphemeClusterTrie = IntoIterator::into_iter(["aa", "ab", "ac"]).map(|&s| s).collect(); [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/compress/gct.rs:113:10 [INFO] [stdout] | [INFO] [stdout] 113 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 113 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 93 ~ let trie: GraphemeClusterTrie = IntoIterator::into_iter([ [INFO] [stdout] 94 | "a1", [INFO] [stdout] ... [INFO] [stdout] 111 | "Videos", [INFO] [stdout] 112 ~ ]) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `clanker` (bin "clanker" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a6f0c95153ba2ff4fd223c3cfe16a51f1916f409f6eed90911d54765b6ec3252", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6f0c95153ba2ff4fd223c3cfe16a51f1916f409f6eed90911d54765b6ec3252", kill_on_drop: false }` [INFO] [stdout] a6f0c95153ba2ff4fd223c3cfe16a51f1916f409f6eed90911d54765b6ec3252