[INFO] cloning repository https://github.com/bynect/rewriter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bynect/rewriter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbynect%2Frewriter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbynect%2Frewriter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 612f6802a095f41121df1c4642ec632e96b97de7
[INFO] testing bynect/rewriter against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbynect%2Frewriter" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bynect/rewriter on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bynect/rewriter
[INFO] finished tweaking git repo https://github.com/bynect/rewriter
[INFO] tweaked toml for git repo https://github.com/bynect/rewriter written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/bynect/rewriter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8329c41c4d76104e3bb1cb3fe119c6dfc9d76df04bfef12c47617197a880ee2
[INFO] running `Command { std: "docker" "start" "-a" "b8329c41c4d76104e3bb1cb3fe119c6dfc9d76df04bfef12c47617197a880ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8329c41c4d76104e3bb1cb3fe119c6dfc9d76df04bfef12c47617197a880ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8329c41c4d76104e3bb1cb3fe119c6dfc9d76df04bfef12c47617197a880ee2", kill_on_drop: false }`
[INFO] [stdout] b8329c41c4d76104e3bb1cb3fe119c6dfc9d76df04bfef12c47617197a880ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ec92507674ddce9859b59d18bd3fb5ae5290ef3c17d76e340887e4a9a03c3c2
[INFO] running `Command { std: "docker" "start" "-a" "7ec92507674ddce9859b59d18bd3fb5ae5290ef3c17d76e340887e4a9a03c3c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling immutable-map v0.1.2
[INFO] [stderr]    Compiling rewriter v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `app`
[INFO] [stdout]   --> src/expr.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn app(e1: Expr, e2: Expr) -> Expr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lam`
[INFO] [stdout]   --> src/expr.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn lam(x: &str, e: Expr) -> Expr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `let_`
[INFO] [stdout]   --> src/expr.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn let_(x: &str, e1: Expr, e2: Expr) -> Expr {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `var`
[INFO] [stdout]   --> src/expr.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn var(x: &str) -> Expr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `freevar`
[INFO] [stdout]   --> src/expr.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn freevar(&self, x: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `split`
[INFO] [stdout]   --> src/split.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn split<'a>(s: &'a str, p: fn(u8) -> bool) -> Split<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "7ec92507674ddce9859b59d18bd3fb5ae5290ef3c17d76e340887e4a9a03c3c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec92507674ddce9859b59d18bd3fb5ae5290ef3c17d76e340887e4a9a03c3c2", kill_on_drop: false }`
[INFO] [stdout] 7ec92507674ddce9859b59d18bd3fb5ae5290ef3c17d76e340887e4a9a03c3c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf3ac779bbb0bcf69dd8ee09a6b35fdd5764bd0e5eed3adee63c52a4ae9bebce
[INFO] running `Command { std: "docker" "start" "-a" "cf3ac779bbb0bcf69dd8ee09a6b35fdd5764bd0e5eed3adee63c52a4ae9bebce", kill_on_drop: false }`
[INFO] [stderr]    Compiling rewriter v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `app`
[INFO] [stdout]   --> src/expr.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn app(e1: Expr, e2: Expr) -> Expr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lam`
[INFO] [stdout]   --> src/expr.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn lam(x: &str, e: Expr) -> Expr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `let_`
[INFO] [stdout]   --> src/expr.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn let_(x: &str, e1: Expr, e2: Expr) -> Expr {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `var`
[INFO] [stdout]   --> src/expr.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn var(x: &str) -> Expr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `freevar`
[INFO] [stdout]   --> src/expr.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn freevar(&self, x: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `split`
[INFO] [stdout]   --> src/split.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn split<'a>(s: &'a str, p: fn(u8) -> bool) -> Split<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "cf3ac779bbb0bcf69dd8ee09a6b35fdd5764bd0e5eed3adee63c52a4ae9bebce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3ac779bbb0bcf69dd8ee09a6b35fdd5764bd0e5eed3adee63c52a4ae9bebce", kill_on_drop: false }`
[INFO] [stdout] cf3ac779bbb0bcf69dd8ee09a6b35fdd5764bd0e5eed3adee63c52a4ae9bebce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0fe6af4fafd54e25de218b6ce57f4b19e02939341fde053864fc6f839be9e21
[INFO] running `Command { std: "docker" "start" "-a" "c0fe6af4fafd54e25de218b6ce57f4b19e02939341fde053864fc6f839be9e21", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `app`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/expr.rs:16:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 16 |     pub fn app(e1: Expr, e2: Expr) -> Expr {
[INFO] [stdout] 
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lam`
[INFO] [stderr]   --> src/expr.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn lam(x: &str, e: Expr) -> Expr {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `let_`
[INFO] [stderr]   --> src/expr.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn let_(x: &str, e1: Expr, e2: Expr) -> Expr {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `var`
[INFO] [stderr]   --> src/expr.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn var(x: &str) -> Expr {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `freevar`
[INFO] [stderr]   --> src/expr.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn freevar(&self, x: &str) -> bool {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split`
[INFO] [stderr]   --> src/split.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn split<'a>(s: &'a str, p: fn(u8) -> bool) -> Split<'a> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rewriter` (bin "rewriter" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rewriter-b53a8b52eeb3073f)
[INFO] running `Command { std: "docker" "inspect" "c0fe6af4fafd54e25de218b6ce57f4b19e02939341fde053864fc6f839be9e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0fe6af4fafd54e25de218b6ce57f4b19e02939341fde053864fc6f839be9e21", kill_on_drop: false }`
[INFO] [stdout] c0fe6af4fafd54e25de218b6ce57f4b19e02939341fde053864fc6f839be9e21