[INFO] cloning repository https://github.com/lassemoldrup/lambda-calculus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemoldrup/lambda-calculus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemoldrup%2Flambda-calculus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemoldrup%2Flambda-calculus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fac64e6c7bed2eb59870ad1609a31e6581ed75b3
[INFO] checking lassemoldrup/lambda-calculus against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemoldrup%2Flambda-calculus" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lassemoldrup/lambda-calculus
[INFO] finished tweaking git repo https://github.com/lassemoldrup/lambda-calculus
[INFO] tweaked toml for git repo https://github.com/lassemoldrup/lambda-calculus written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lassemoldrup/lambda-calculus on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lassemoldrup/lambda-calculus 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b370dfeccefb700cf008ad177f8c731786867d04d38518682f9493b8d1cdf0d
[INFO] running `Command { std: "docker" "start" "-a" "0b370dfeccefb700cf008ad177f8c731786867d04d38518682f9493b8d1cdf0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b370dfeccefb700cf008ad177f8c731786867d04d38518682f9493b8d1cdf0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b370dfeccefb700cf008ad177f8c731786867d04d38518682f9493b8d1cdf0d", kill_on_drop: false }`
[INFO] [stdout] 0b370dfeccefb700cf008ad177f8c731786867d04d38518682f9493b8d1cdf0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48101adbee7129139f65e2704af7322c89fa60564b3b700f7993247fdc731c3c
[INFO] running `Command { std: "docker" "start" "-a" "48101adbee7129139f65e2704af7322c89fa60564b3b700f7993247fdc731c3c", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking lambda-calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/main.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Error {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:87:26
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn tokenize(program: &str) -> Vec<Token> {
[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] 87 |     fn tokenize(program: &str) -> Vec<Token<'_>> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:82:59
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn display<'ctx>(&'ctx self, idents: &'ctx Idents) -> AstNodeDisplay {
[INFO] [stdout]    |                       ----                ----            ^^^^^^^^^^^^^^
[INFO] [stdout]    |                       |                   |               |
[INFO] [stdout]    |                       |                   |               the same lifetime is hidden here
[INFO] [stdout]    |                       |                   |               the same lifetime is hidden here
[INFO] [stdout]    |                       |                   the lifetime is named here
[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] help: consistently use `'ctx`
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn display<'ctx>(&'ctx self, idents: &'ctx Idents) -> AstNodeDisplay<'ctx> {
[INFO] [stdout]    |                                                                         ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/main.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Error {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:82:59
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn display<'ctx>(&'ctx self, idents: &'ctx Idents) -> AstNodeDisplay {
[INFO] [stdout]    |                       ----                ----            ^^^^^^^^^^^^^^
[INFO] [stdout]    |                       |                   |               |
[INFO] [stdout]    |                       |                   |               the same lifetime is hidden here
[INFO] [stdout]    |                       |                   |               the same lifetime is hidden here
[INFO] [stdout]    |                       |                   the lifetime is named here
[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 `'ctx`
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn display<'ctx>(&'ctx self, idents: &'ctx Idents) -> AstNodeDisplay<'ctx> {
[INFO] [stdout]    |                                                                         ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "48101adbee7129139f65e2704af7322c89fa60564b3b700f7993247fdc731c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48101adbee7129139f65e2704af7322c89fa60564b3b700f7993247fdc731c3c", kill_on_drop: false }`
[INFO] [stdout] 48101adbee7129139f65e2704af7322c89fa60564b3b700f7993247fdc731c3c
