[INFO] cloning repository https://github.com/Plasticcaz/mayim_old
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Plasticcaz/mayim_old" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasticcaz%2Fmayim_old", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasticcaz%2Fmayim_old'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c98c5ac9d7a59a9e9c4c91bce1eb0a5919df029f
[INFO] checking Plasticcaz/mayim_old against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasticcaz%2Fmayim_old" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Plasticcaz/mayim_old on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Plasticcaz/mayim_old
[INFO] finished tweaking git repo https://github.com/Plasticcaz/mayim_old
[INFO] tweaked toml for git repo https://github.com/Plasticcaz/mayim_old written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Plasticcaz/mayim_old already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3df8d6472e4f8bc032fd3e26bbac3c7fcd09ef9256f17edffa020aa2306a0fbf
[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" "3df8d6472e4f8bc032fd3e26bbac3c7fcd09ef9256f17edffa020aa2306a0fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3df8d6472e4f8bc032fd3e26bbac3c7fcd09ef9256f17edffa020aa2306a0fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df8d6472e4f8bc032fd3e26bbac3c7fcd09ef9256f17edffa020aa2306a0fbf", kill_on_drop: false }`
[INFO] [stdout] 3df8d6472e4f8bc032fd3e26bbac3c7fcd09ef9256f17edffa020aa2306a0fbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6642002b3c9fa5b1c5fc2fbca3b939958c0deb551115e38d48b923ffd0aceb5e
[INFO] running `Command { std: "docker" "start" "-a" "6642002b3c9fa5b1c5fc2fbca3b939958c0deb551115e38d48b923ffd0aceb5e", kill_on_drop: false }`
[INFO] [stderr]     Checking siphasher v0.3.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking syntax v0.1.0 (/opt/rustwide/workdir/syntax)
[INFO] [stdout] warning: unused import: `Atom`
[INFO] [stdout]  --> syntax/src/expression.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Atom, AtomToken, Location};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt`
[INFO] [stdout]  --> syntax/src/parser.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt, vec::IntoIter};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Atom`
[INFO] [stdout]  --> syntax/src/expression.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Atom, AtomToken, Location};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt`
[INFO] [stdout]  --> syntax/src/parser.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt, vec::IntoIter};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `location`
[INFO] [stdout]   --> syntax/src/expression.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn location(&self) -> Location {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `location`
[INFO] [stdout]   --> syntax/src/expression.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn location(&self) -> Location {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mayimc v0.1.0 (/opt/rustwide/workdir/mayimc)
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "6642002b3c9fa5b1c5fc2fbca3b939958c0deb551115e38d48b923ffd0aceb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6642002b3c9fa5b1c5fc2fbca3b939958c0deb551115e38d48b923ffd0aceb5e", kill_on_drop: false }`
[INFO] [stdout] 6642002b3c9fa5b1c5fc2fbca3b939958c0deb551115e38d48b923ffd0aceb5e