[INFO] fetching crate lambda_calculus 3.3.0...
[INFO] checking lambda_calculus-3.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate lambda_calculus 3.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate lambda_calculus 3.3.0
[INFO] finished tweaking crates.io crate lambda_calculus 3.3.0
[INFO] tweaked toml for crates.io crate lambda_calculus 3.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lambda_calculus 3.3.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef5538b61a812bb3d1b89f410f09e2fee915a2c3fe6b33ca287fee99327fce8d
[INFO] running `Command { std: "docker" "start" "-a" "ef5538b61a812bb3d1b89f410f09e2fee915a2c3fe6b33ca287fee99327fce8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef5538b61a812bb3d1b89f410f09e2fee915a2c3fe6b33ca287fee99327fce8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef5538b61a812bb3d1b89f410f09e2fee915a2c3fe6b33ca287fee99327fce8d", kill_on_drop: false }`
[INFO] [stdout] ef5538b61a812bb3d1b89f410f09e2fee915a2c3fe6b33ca287fee99327fce8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 889b0f744c1ace8a51ef19c64d3e9a2f0c04395ad5e096c14b390b5e6cc0d68b
[INFO] running `Command { std: "docker" "start" "-a" "889b0f744c1ace8a51ef19c64d3e9a2f0c04395ad5e096c14b390b5e6cc0d68b", kill_on_drop: false }`
[INFO] [stderr]     Checking lambda_calculus v3.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/term.rs:578:27
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn parenthesize_if(input: &str, condition: bool) -> Cow<str> {
[INFO] [stdout]     |                           ^^^^                      -------- the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn parenthesize_if(input: &str, condition: bool) -> Cow<'_, str> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/term.rs:578:27
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn parenthesize_if(input: &str, condition: bool) -> Cow<str> {
[INFO] [stdout]     |                           ^^^^                      -------- the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn parenthesize_if(input: &str, condition: bool) -> Cow<'_, str> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "889b0f744c1ace8a51ef19c64d3e9a2f0c04395ad5e096c14b390b5e6cc0d68b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889b0f744c1ace8a51ef19c64d3e9a2f0c04395ad5e096c14b390b5e6cc0d68b", kill_on_drop: false }`
[INFO] [stdout] 889b0f744c1ace8a51ef19c64d3e9a2f0c04395ad5e096c14b390b5e6cc0d68b