[INFO] fetching crate calc_engine 0.4.1...
[INFO] checking calc_engine-0.4.1 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate calc_engine 0.4.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate calc_engine 0.4.1
[INFO] finished tweaking crates.io crate calc_engine 0.4.1
[INFO] tweaked toml for crates.io crate calc_engine 0.4.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate calc_engine 0.4.1 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate calc_engine 0.4.1 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e7d3cc89c9d448d4847fee2bf7957463b597dfa4cdc286ac7504835e888ba4c
[INFO] running `Command { std: "docker" "start" "-a" "3e7d3cc89c9d448d4847fee2bf7957463b597dfa4cdc286ac7504835e888ba4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e7d3cc89c9d448d4847fee2bf7957463b597dfa4cdc286ac7504835e888ba4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7d3cc89c9d448d4847fee2bf7957463b597dfa4cdc286ac7504835e888ba4c", kill_on_drop: false }`
[INFO] [stdout] 3e7d3cc89c9d448d4847fee2bf7957463b597dfa4cdc286ac7504835e888ba4c
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d3d368bbe82335fb24dbf5cd839dda2f210946b6f731cef6d7f9d3e7931e760
[INFO] running `Command { std: "docker" "start" "-a" "0d3d368bbe82335fb24dbf5cd839dda2f210946b6f731cef6d7f9d3e7931e760", kill_on_drop: false }`
[INFO] [stderr]     Checking auto_correct_n_suggest v0.2.0
[INFO] [stderr]     Checking calc_engine v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:38:28
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                            ^^         ------- the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:38:28
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                            ^^         ------- the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "0d3d368bbe82335fb24dbf5cd839dda2f210946b6f731cef6d7f9d3e7931e760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d3d368bbe82335fb24dbf5cd839dda2f210946b6f731cef6d7f9d3e7931e760", kill_on_drop: false }`
[INFO] [stdout] 0d3d368bbe82335fb24dbf5cd839dda2f210946b6f731cef6d7f9d3e7931e760