[INFO] fetching crate gemachain_rbpf 0.2.14...
[INFO] checking gemachain_rbpf-0.2.14 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate gemachain_rbpf 0.2.14 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate gemachain_rbpf 0.2.14 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gemachain_rbpf 0.2.14
[INFO] finished tweaking crates.io crate gemachain_rbpf 0.2.14
[INFO] tweaked toml for crates.io crate gemachain_rbpf 0.2.14 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate gemachain_rbpf 0.2.14 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded thiserror-impl v1.0.26
[INFO] [stderr]   Downloaded hash32 v0.1.0
[INFO] [stderr]   Downloaded scroll_derive v0.10.1
[INFO] [stderr]   Downloaded elf v0.0.10
[INFO] [stderr]   Downloaded thiserror v1.0.26
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded json v0.11.15
[INFO] [stderr]   Downloaded byteorder v1.2.7
[INFO] [stderr]   Downloaded goblin v0.4.2
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24f3d4159a815ffdde950f2150dc231216a4cd0229caf1b8a2e4df3a7ae5c29f
[INFO] running `Command { std: "docker" "start" "-a" "24f3d4159a815ffdde950f2150dc231216a4cd0229caf1b8a2e4df3a7ae5c29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24f3d4159a815ffdde950f2150dc231216a4cd0229caf1b8a2e4df3a7ae5c29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24f3d4159a815ffdde950f2150dc231216a4cd0229caf1b8a2e4df3a7ae5c29f", kill_on_drop: false }`
[INFO] [stdout] 24f3d4159a815ffdde950f2150dc231216a4cd0229caf1b8a2e4df3a7ae5c29f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56a52bf4d2b9bd464dc4a7b8984e61900f9b282beecd3565ff1100607bc11f76
[INFO] running `Command { std: "docker" "start" "-a" "56a52bf4d2b9bd464dc4a7b8984e61900f9b282beecd3565ff1100607bc11f76", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking hash32 v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.4.2
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking gemachain_rbpf v0.2.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ebpf` is imported redundantly
[INFO] [stdout]    --> src/elf.rs:746:9
[INFO] [stdout]     |
[INFO] [stdout] 744 |     use super::*;
[INFO] [stdout]     |         -------- the item `ebpf` is already imported here
[INFO] [stdout] 745 |     use crate::{
[INFO] [stdout] 746 |         ebpf,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/static_analysis.rs:791:25
[INFO] [stdout]     |
[INFO] [stdout] 791 |                     let mut cfg_node = self.cfg_nodes.get_mut(b).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `test_utils`
[INFO] [stdout]  --> tests/assembler.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate test_utils;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `test_utils`
[INFO] [stdout]   --> benches/elf_loader.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate test_utils;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/vm_execution.rs:80:26
[INFO] [stdout]    |
[INFO] [stdout] 80 |           .bench(|bencher| {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 81 | |             bencher.iter(|| {
[INFO] [stdout] 82 | |                 let result = vm.execute_program_interpreted(&mut TestInstructionMeter {
[INFO] [stdout] 83 | |                     remaining: instruction_meter,
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |             });
[INFO] [stdout] 88 | |         })
[INFO] [stdout]    | |_________^ expected `Result<(), String>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/vm_execution.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |           .bench(|bencher| {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 92 | |             bencher.iter(|| {
[INFO] [stdout] 93 | |                 let result = vm.execute_program_jit(&mut TestInstructionMeter {
[INFO] [stdout] 94 | |                     remaining: instruction_meter,
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | |             });
[INFO] [stdout] 99 | |         })
[INFO] [stdout]    | |_________^ expected `Result<(), String>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `mean` on type `Option<Summary>`
[INFO] [stdout]    --> benches/vm_execution.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |         interpreter_summary.mean / jit_summary.mean
[INFO] [stdout]     |                             ^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         interpreter_summary.unwrap().mean / jit_summary.mean
[INFO] [stdout]     |                             +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `mean` on type `Option<Summary>`
[INFO] [stdout]    --> benches/vm_execution.rs:103:48
[INFO] [stdout]     |
[INFO] [stdout] 103 |         interpreter_summary.mean / jit_summary.mean
[INFO] [stdout]     |                                                ^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         interpreter_summary.mean / jit_summary.unwrap().mean
[INFO] [stdout]     |                                                +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gemachain_rbpf` (bench "elf_loader") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gemachain_rbpf` (bench "vm_execution") due to 5 previous errors
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gemachain_rbpf` (test "assembler") due to 2 previous errors
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/static_analysis.rs:791:25
[INFO] [stdout]     |
[INFO] [stdout] 791 |                     let mut cfg_node = self.cfg_nodes.get_mut(b).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56a52bf4d2b9bd464dc4a7b8984e61900f9b282beecd3565ff1100607bc11f76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56a52bf4d2b9bd464dc4a7b8984e61900f9b282beecd3565ff1100607bc11f76", kill_on_drop: false }`
[INFO] [stdout] 56a52bf4d2b9bd464dc4a7b8984e61900f9b282beecd3565ff1100607bc11f76
