[INFO] cloning repository https://github.com/Lioncat2002/Juniper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lioncat2002/Juniper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioncat2002%2FJuniper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioncat2002%2FJuniper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43b2b6cced5b62fbe8fa9de23906e28db2e95ddb
[INFO] checking Lioncat2002/Juniper against try#3a4cb0edb4040379c037e06efeb5409e44be7b77 for pr-146377
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLioncat2002%2FJuniper" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lioncat2002/Juniper
[INFO] finished tweaking git repo https://github.com/Lioncat2002/Juniper
[INFO] tweaked toml for git repo https://github.com/Lioncat2002/Juniper written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lioncat2002/Juniper on toolchain 3a4cb0edb4040379c037e06efeb5409e44be7b77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lioncat2002/Juniper 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" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 902d7cb2292704d76587e72e7ad3ad3054f6193d9e6792f196f914b8972fbf75
[INFO] running `Command { std: "docker" "start" "-a" "902d7cb2292704d76587e72e7ad3ad3054f6193d9e6792f196f914b8972fbf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "902d7cb2292704d76587e72e7ad3ad3054f6193d9e6792f196f914b8972fbf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "902d7cb2292704d76587e72e7ad3ad3054f6193d9e6792f196f914b8972fbf75", kill_on_drop: false }`
[INFO] [stdout] 902d7cb2292704d76587e72e7ad3ad3054f6193d9e6792f196f914b8972fbf75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eb3f7ec4cd835ce54a6543c917fbc8e0f15b335e585ee0e02c60f7d9bd118a8
[INFO] running `Command { std: "docker" "start" "-a" "6eb3f7ec4cd835ce54a6543c917fbc8e0f15b335e585ee0e02c60f7d9bd118a8", kill_on_drop: false }`
[INFO] [stderr]     Checking vm v0.1.0 (/opt/rustwide/workdir/vm)
[INFO] [stdout] warning: fields `data` and `idx` are never read
[INFO] [stdout]  --> vm/src/core/allocation/heap.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct AllocFrame{
[INFO] [stdout]   |        ---------- fields in this struct
[INFO] [stdout] 6 |     data: JnpVal,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     idx:usize
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> vm/src/core/codegen/builder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(instruction_table: &'_ InstructionTable<T>) -> Builder<T> {
[INFO] [stdout]    |                                    ^^                         ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(instruction_table: &'_ InstructionTable<T>) -> Builder<'_, T> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data` and `idx` are never read
[INFO] [stdout]  --> vm/src/core/allocation/heap.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct AllocFrame{
[INFO] [stdout]   |        ---------- fields in this struct
[INFO] [stdout] 6 |     data: JnpVal,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     idx:usize
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> vm/src/core/codegen/builder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(instruction_table: &'_ InstructionTable<T>) -> Builder<T> {
[INFO] [stdout]    |                                    ^^                         ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(instruction_table: &'_ InstructionTable<T>) -> Builder<'_, T> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking juniper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir/compiler)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "6eb3f7ec4cd835ce54a6543c917fbc8e0f15b335e585ee0e02c60f7d9bd118a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eb3f7ec4cd835ce54a6543c917fbc8e0f15b335e585ee0e02c60f7d9bd118a8", kill_on_drop: false }`
[INFO] [stdout] 6eb3f7ec4cd835ce54a6543c917fbc8e0f15b335e585ee0e02c60f7d9bd118a8