[INFO] cloning repository https://github.com/tkclimb/hack-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tkclimb/hack-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkclimb%2Fhack-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkclimb%2Fhack-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ecc755c64ae8cfb8d843bd6f6b2039aada2908a
[INFO] checking tkclimb/hack-vm against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkclimb%2Fhack-vm" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tkclimb/hack-vm on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tkclimb/hack-vm
[INFO] finished tweaking git repo https://github.com/tkclimb/hack-vm
[INFO] tweaked toml for git repo https://github.com/tkclimb/hack-vm written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/tkclimb/hack-vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 090303cec0130051c52fbf8771d45767f1492eebbb07e3570b8581985ab393db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "090303cec0130051c52fbf8771d45767f1492eebbb07e3570b8581985ab393db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "090303cec0130051c52fbf8771d45767f1492eebbb07e3570b8581985ab393db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "090303cec0130051c52fbf8771d45767f1492eebbb07e3570b8581985ab393db", kill_on_drop: false }`
[INFO] [stdout] 090303cec0130051c52fbf8771d45767f1492eebbb07e3570b8581985ab393db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42aa553997763af1cb71f132fafe41634410f242a592988f230a7dbfe4f8b577
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42aa553997763af1cb71f132fafe41634410f242a592988f230a7dbfe4f8b577", kill_on_drop: false }`
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking hack-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::token`
[INFO] [stdout]  --> src/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |   lhs: Box<Node>,
[INFO] [stdout]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |   rhs: Box<Node>,
[INFO] [stdout]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/scanner.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/scanner.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token`
[INFO] [stdout]  --> src/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |   lhs: Box<Node>,
[INFO] [stdout]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |   rhs: Box<Node>,
[INFO] [stdout]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/scanner.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/scanner.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lhs`
[INFO] [stdout]   --> src/ast.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   lhs: Box<Node>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lhs`
[INFO] [stdout]   --> src/ast.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   lhs: Box<Node>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]   --> src/ast.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   rhs: Box<Node>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]   --> src/ast.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   rhs: Box<Node>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_num`
[INFO] [stdout]    --> src/scanner.rs:127:6
[INFO] [stdout]     |
[INFO] [stdout] 127 |   fn parse_num(&mut self) -> Option<u32> {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_num`
[INFO] [stdout]    --> src/scanner.rs:127:6
[INFO] [stdout]     |
[INFO] [stdout] 127 |   fn parse_num(&mut self) -> Option<u32> {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]    --> src/scanner.rs:153:6
[INFO] [stdout]     |
[INFO] [stdout] 153 |   fn last(&mut self) -> Option<char> {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/scanner.rs:157:6
[INFO] [stdout]     |
[INFO] [stdout] 157 |   fn next(&mut self) -> Option<char> {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]    --> src/scanner.rs:153:6
[INFO] [stdout]     |
[INFO] [stdout] 153 |   fn last(&mut self) -> Option<char> {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Eof`
[INFO] [stdout]  --> src/token.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   Eof,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Argment`
[INFO] [stdout]  --> src/token.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   Argment,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Local`
[INFO] [stdout]  --> src/token.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Local,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/scanner.rs:157:6
[INFO] [stdout]     |
[INFO] [stdout] 157 |   fn next(&mut self) -> Option<char> {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `This`
[INFO] [stdout]   --> src/token.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   This,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `That`
[INFO] [stdout]   --> src/token.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   That,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Eof`
[INFO] [stdout]  --> src/token.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   Eof,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Pointer`
[INFO] [stdout]   --> src/token.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   Pointer,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Temp`
[INFO] [stdout]   --> src/token.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 |   Temp,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sub`
[INFO] [stdout]   --> src/token.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   Sub,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Argment`
[INFO] [stdout]  --> src/token.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   Argment,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mul`
[INFO] [stdout]   --> src/token.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   Mul,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Local`
[INFO] [stdout]  --> src/token.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Local,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `This`
[INFO] [stdout]   --> src/token.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   This,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `That`
[INFO] [stdout]   --> src/token.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   That,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Pointer`
[INFO] [stdout]   --> src/token.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   Pointer,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Temp`
[INFO] [stdout]   --> src/token.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 |   Temp,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sub`
[INFO] [stdout]   --> src/token.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   Sub,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mul`
[INFO] [stdout]   --> src/token.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   Mul,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/scanner.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |           self.parse_line();
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/scanner.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |           self.parse_line();
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "42aa553997763af1cb71f132fafe41634410f242a592988f230a7dbfe4f8b577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42aa553997763af1cb71f132fafe41634410f242a592988f230a7dbfe4f8b577", kill_on_drop: false }`
[INFO] [stdout] 42aa553997763af1cb71f132fafe41634410f242a592988f230a7dbfe4f8b577