[INFO] cloning repository https://github.com/mcthouacbb/derivative [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcthouacbb/derivative" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcthouacbb%2Fderivative", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcthouacbb%2Fderivative'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1ce4dedf11b2b2c67f4d4806be92077de39002dc [INFO] checking mcthouacbb/derivative against try#50d7e48beb74b48bd17c3749bfb73843c9ae0166 for pr-151102 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcthouacbb%2Fderivative" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mcthouacbb/derivative [INFO] finished tweaking git repo https://github.com/mcthouacbb/derivative [INFO] tweaked toml for git repo https://github.com/mcthouacbb/derivative written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mcthouacbb/derivative on toolchain 50d7e48beb74b48bd17c3749bfb73843c9ae0166 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mcthouacbb/derivative 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" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking mcthouacbb/derivative against try#50d7e48beb74b48bd17c3749bfb73843c9ae0166 for pr-151102 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcthouacbb%2Fderivative" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mcthouacbb/derivative [INFO] finished tweaking git repo https://github.com/mcthouacbb/derivative [INFO] tweaked toml for git repo https://github.com/mcthouacbb/derivative written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mcthouacbb/derivative on toolchain 50d7e48beb74b48bd17c3749bfb73843c9ae0166 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mcthouacbb/derivative 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" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c2a78e7d14002a437f54483b13792a7291558e8025a653161559ca2a93f956f2 [INFO] running `Command { std: "docker" "start" "-a" "c2a78e7d14002a437f54483b13792a7291558e8025a653161559ca2a93f956f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c2a78e7d14002a437f54483b13792a7291558e8025a653161559ca2a93f956f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2a78e7d14002a437f54483b13792a7291558e8025a653161559ca2a93f956f2", kill_on_drop: false }` [INFO] [stdout] c2a78e7d14002a437f54483b13792a7291558e8025a653161559ca2a93f956f2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc23416b79422bc1a4317e204e017be6a5b3aeb1b794dafe0c160285ba72fc77 [INFO] running `Command { std: "docker" "start" "-a" "cc23416b79422bc1a4317e204e017be6a5b3aeb1b794dafe0c160285ba72fc77", kill_on_drop: false }` [INFO] [stderr] Checking derivative v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: enum `Expr` is never used [INFO] [stdout] --> src/expr.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | enum Expr { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `binary` and `unary` are never used [INFO] [stdout] --> src/expr.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Expr { [INFO] [stdout] | --------- associated functions in this implementation [INFO] [stdout] 14 | fn binary(left: Box, right: Box, op: BinaryOp) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | fn unary(right: Box, op: UnaryOp) -> Self { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `BinaryOp` is never used [INFO] [stdout] --> src/expr/binary_expr.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum BinaryOp { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Expr` is never used [INFO] [stdout] --> src/expr.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | enum Expr { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BinaryExpr` is never constructed [INFO] [stdout] --> src/expr/binary_expr.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct BinaryExpr { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `left`, `right`, and `op` are never used [INFO] [stdout] --> src/expr/binary_expr.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 35 | impl BinaryExpr { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 36 | pub fn new(left: Box, right: Box, op: BinaryOp) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn left(&self) -> &Expr { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn right(&self) -> &Expr { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | pub fn op(&self) -> BinaryOp { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `binary` and `unary` are never used [INFO] [stdout] --> src/expr.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Expr { [INFO] [stdout] | --------- associated functions in this implementation [INFO] [stdout] 14 | fn binary(left: Box, right: Box, op: BinaryOp) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | fn unary(right: Box, op: UnaryOp) -> Self { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `UnaryOp` is never used [INFO] [stdout] --> src/expr/unary_expr.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum UnaryOp { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UnaryExpr` is never constructed [INFO] [stdout] --> src/expr/unary_expr.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct UnaryExpr { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `BinaryOp` is never used [INFO] [stdout] --> src/expr/binary_expr.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum BinaryOp { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BinaryExpr` is never constructed [INFO] [stdout] --> src/expr/binary_expr.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct BinaryExpr { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `right`, and `op` are never used [INFO] [stdout] --> src/expr/unary_expr.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl UnaryExpr { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 29 | pub fn new(right: Box, op: UnaryOp) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn right(&self) -> &Expr { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn op(&self) -> UnaryOp { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `left`, `right`, and `op` are never used [INFO] [stdout] --> src/expr/binary_expr.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 35 | impl BinaryExpr { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 36 | pub fn new(left: Box, right: Box, op: BinaryOp) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn left(&self) -> &Expr { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn right(&self) -> &Expr { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | pub fn op(&self) -> BinaryOp { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `UnaryOp` is never used [INFO] [stdout] --> src/expr/unary_expr.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum UnaryOp { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UnaryExpr` is never constructed [INFO] [stdout] --> src/expr/unary_expr.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct UnaryExpr { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `right`, and `op` are never used [INFO] [stdout] --> src/expr/unary_expr.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl UnaryExpr { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 29 | pub fn new(right: Box, op: UnaryOp) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn right(&self) -> &Expr { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn op(&self) -> UnaryOp { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "cc23416b79422bc1a4317e204e017be6a5b3aeb1b794dafe0c160285ba72fc77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc23416b79422bc1a4317e204e017be6a5b3aeb1b794dafe0c160285ba72fc77", kill_on_drop: false }` [INFO] [stdout] cc23416b79422bc1a4317e204e017be6a5b3aeb1b794dafe0c160285ba72fc77