[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<Expr>, right: Box<Expr>, op: BinaryOp) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn unary(right: Box<Expr>, 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<Expr>, right: Box<Expr>, 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<Expr>, right: Box<Expr>, op: BinaryOp) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn unary(right: Box<Expr>, 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<Expr>, 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<Expr>, right: Box<Expr>, 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<Expr>, 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
