[INFO] fetching crate possum-script 0.1.0...
[INFO] checking possum-script-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate possum-script 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate possum-script 0.1.0
[INFO] finished tweaking crates.io crate possum-script 0.1.0
[INFO] tweaked toml for crates.io crate possum-script 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate possum-script 0.1.0 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] crate crates.io crate possum-script 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ac2535df8b4761cc6080e66a404efb2b91f87d6d9016e9cbbeb20afc0fbc83de
[INFO] running `Command { std: "docker" "start" "-a" "ac2535df8b4761cc6080e66a404efb2b91f87d6d9016e9cbbeb20afc0fbc83de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac2535df8b4761cc6080e66a404efb2b91f87d6d9016e9cbbeb20afc0fbc83de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac2535df8b4761cc6080e66a404efb2b91f87d6d9016e9cbbeb20afc0fbc83de", kill_on_drop: false }`
[INFO] [stdout] ac2535df8b4761cc6080e66a404efb2b91f87d6d9016e9cbbeb20afc0fbc83de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 797e9805ad6413afe94b9c073e552c4e609d159dd93f6683750845a8aa2560e1
[INFO] running `Command { std: "docker" "start" "-a" "797e9805ad6413afe94b9c073e552c4e609d159dd93f6683750845a8aa2560e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking possum-script v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/vm/thread.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc, sync::RwLock};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::*`
[INFO] [stdout]  --> src/vm/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use thread::*;
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::*`
[INFO] [stdout]  --> src/vm/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use ops::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/vm/thread.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc, sync::RwLock};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::*`
[INFO] [stdout]  --> src/vm/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use thread::*;
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::*`
[INFO] [stdout]  --> src/vm/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use ops::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vm`
[INFO] [stdout]   --> src/vm/thread.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn run(&mut self, vm: Rc<RwLock<Vm>>) {
[INFO] [stdout]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vm`
[INFO] [stdout]   --> src/vm/thread.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn tick(&mut self, vm: RwLock<Vm>) {
[INFO] [stdout]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/lang/asyncstr.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Error {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `with_capacity`, `poll_fill_buf`, and `consume` are never used
[INFO] [stdout]   --> src/lang/asyncstr.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<R: AsyncRead + Unpin> AsyncStrReader<R> {
[INFO] [stdout]    | -------------------------------------------- associated items in this implementation
[INFO] [stdout] 26 |     #[inline]
[INFO] [stdout] 27 |     pub fn new(inner: R) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn with_capacity(capacity: usize, inner: R) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn poll_fill_buf(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<&str, Error>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn consume(self: Pin<&mut Self>, amt: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vm` is never constructed
[INFO] [stdout]  --> src/vm/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Vm {
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Thread` is never constructed
[INFO] [stdout]  --> src/vm/thread.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Thread {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `run` and `tick` are never used
[INFO] [stdout]   --> src/vm/thread.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Thread {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 12 |     fn run(&mut self, vm: Rc<RwLock<Vm>>) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn tick(&mut self, vm: RwLock<Vm>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ptr` is never constructed
[INFO] [stdout]  --> src/vm/value.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Ptr(usize);
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]  --> src/vm/value.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpCode` is never used
[INFO] [stdout]  --> src/vm/ops.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum OpCode {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]   --> src/vm/ops.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum Operation {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vm`
[INFO] [stdout]   --> src/vm/thread.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn run(&mut self, vm: Rc<RwLock<Vm>>) {
[INFO] [stdout]    |                       ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vm`
[INFO] [stdout]   --> src/vm/thread.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn tick(&mut self, vm: RwLock<Vm>) {
[INFO] [stdout]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vm` is never constructed
[INFO] [stdout]  --> src/vm/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Vm {
[INFO] [stdout]   |            ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Thread` is never constructed
[INFO] [stdout]  --> src/vm/thread.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Thread {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `run` and `tick` are never used
[INFO] [stdout]   --> src/vm/thread.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Thread {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 12 |     fn run(&mut self, vm: Rc<RwLock<Vm>>) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn tick(&mut self, vm: RwLock<Vm>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ptr` is never constructed
[INFO] [stdout]  --> src/vm/value.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Ptr(usize);
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]  --> src/vm/value.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpCode` is never used
[INFO] [stdout]  --> src/vm/ops.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum OpCode {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]   --> src/vm/ops.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum Operation {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.23s
[INFO] running `Command { std: "docker" "inspect" "797e9805ad6413afe94b9c073e552c4e609d159dd93f6683750845a8aa2560e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797e9805ad6413afe94b9c073e552c4e609d159dd93f6683750845a8aa2560e1", kill_on_drop: false }`
[INFO] [stdout] 797e9805ad6413afe94b9c073e552c4e609d159dd93f6683750845a8aa2560e1