[INFO] cloning repository https://github.com/arthurc/jay
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arthurc/jay" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthurc%2Fjay", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthurc%2Fjay'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 677bea3b8352320da38a3092611bb49d3f2b58ec
[INFO] checking arthurc/jay against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthurc%2Fjay" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arthurc/jay on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arthurc/jay
[INFO] finished tweaking git repo https://github.com/arthurc/jay
[INFO] tweaked toml for git repo https://github.com/arthurc/jay written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/arthurc/jay 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.8.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ad762476e8c0156dc8552fc39bb08e229952ef64ee713f84fb76165e87bafb2
[INFO] running `Command { std: "docker" "start" "-a" "5ad762476e8c0156dc8552fc39bb08e229952ef64ee713f84fb76165e87bafb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ad762476e8c0156dc8552fc39bb08e229952ef64ee713f84fb76165e87bafb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad762476e8c0156dc8552fc39bb08e229952ef64ee713f84fb76165e87bafb2", kill_on_drop: false }`
[INFO] [stdout] 5ad762476e8c0156dc8552fc39bb08e229952ef64ee713f84fb76165e87bafb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c6c3053c7f67f710240131961686426d678370bb65197ab89a8bcb44ffc9da0
[INFO] running `Command { std: "docker" "start" "-a" "2c6c3053c7f67f710240131961686426d678370bb65197ab89a8bcb44ffc9da0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling winnow v0.5.19
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling serde_spanned v0.6.4
[INFO] [stderr]    Compiling toml_edit v0.20.7
[INFO] [stderr]     Checking jay-classfile v0.1.0 (/opt/rustwide/workdir/crates/classfile)
[INFO] [stderr]     Checking jay-jimage v0.1.0 (/opt/rustwide/workdir/crates/jimage)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> crates/jimage/src/lib.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{convert::TryFrom, fmt::Debug};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> crates/classfile/src/parser.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Read` is already imported here
[INFO] [stdout] 2 | use byteorder::{BigEndian, ReadBytesExt};
[INFO] [stdout] 3 | use std::io::{BufReader, Read, Seek};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Seek` is imported redundantly
[INFO] [stdout]  --> crates/classfile/src/parser.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Seek` is already imported here
[INFO] [stdout] 2 | use byteorder::{BigEndian, ReadBytesExt};
[INFO] [stdout] 3 | use std::io::{BufReader, Read, Seek};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> crates/classfile/src/lib.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Constant` is imported redundantly
[INFO] [stdout]    --> crates/classfile/src/lib.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     use crate::constant::Constant;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 145 |
[INFO] [stdout] 146 |     use super::*;
[INFO] [stdout]     |         -------- the item `Constant` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> crates/classfile/src/parser.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Read` is already imported here
[INFO] [stdout] 2 | use byteorder::{BigEndian, ReadBytesExt};
[INFO] [stdout] 3 | use std::io::{BufReader, Read, Seek};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Seek` is imported redundantly
[INFO] [stdout]  --> crates/classfile/src/parser.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Seek` is already imported here
[INFO] [stdout] 2 | use byteorder::{BigEndian, ReadBytesExt};
[INFO] [stdout] 3 | use std::io::{BufReader, Read, Seek};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> crates/jimage/src/lib.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{convert::TryFrom, fmt::Debug};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml v0.8.6
[INFO] [stderr]    Compiling jay-bytecode v0.1.0 (/opt/rustwide/workdir/crates/bytecode)
[INFO] [stderr]     Checking jay-runtime v0.1.0 (/opt/rustwide/workdir/crates/runtime)
[INFO] [stdout] warning: field `classes` is never read
[INFO] [stdout]   --> crates/runtime/src/runtime.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Runtime<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 13 |     class_path: ClassPath<'a>,
[INFO] [stdout] 14 |     classes: RefCell<Vec<Class>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `constant_pool` is never read
[INFO] [stdout]    --> crates/runtime/src/runtime.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub struct Class {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 128 |     constant_pool: ConstantPool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `class` is never read
[INFO] [stdout]    --> crates/runtime/src/runtime.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct Frame<'a, 'b> {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 155 |     pc: usize,
[INFO] [stdout] 156 |     class: &'a Class,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `classes` is never read
[INFO] [stdout]   --> crates/runtime/src/runtime.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Runtime<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 13 |     class_path: ClassPath<'a>,
[INFO] [stdout] 14 |     classes: RefCell<Vec<Class>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `constant_pool` is never read
[INFO] [stdout]    --> crates/runtime/src/runtime.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub struct Class {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 128 |     constant_pool: ConstantPool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `class` is never read
[INFO] [stdout]    --> crates/runtime/src/runtime.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct Frame<'a, 'b> {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 155 |     pc: usize,
[INFO] [stdout] 156 |     class: &'a Class,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking jay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.73s
[INFO] running `Command { std: "docker" "inspect" "2c6c3053c7f67f710240131961686426d678370bb65197ab89a8bcb44ffc9da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6c3053c7f67f710240131961686426d678370bb65197ab89a8bcb44ffc9da0", kill_on_drop: false }`
[INFO] [stdout] 2c6c3053c7f67f710240131961686426d678370bb65197ab89a8bcb44ffc9da0