[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#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlasticcaz%2Fmayim_old" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Plasticcaz/mayim_old on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-1/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffd77581e9f48fd3412d44529131cc7339e156cfa2c1da51522ef1410c6e8563
[INFO] running `Command { std: "docker" "start" "-a" "ffd77581e9f48fd3412d44529131cc7339e156cfa2c1da51522ef1410c6e8563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffd77581e9f48fd3412d44529131cc7339e156cfa2c1da51522ef1410c6e8563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd77581e9f48fd3412d44529131cc7339e156cfa2c1da51522ef1410c6e8563", kill_on_drop: false }`
[INFO] [stdout] ffd77581e9f48fd3412d44529131cc7339e156cfa2c1da51522ef1410c6e8563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc1b85b4b115ad5115866f44830154ed73a294fac4418bc6c1b17298a67ab4cb
[INFO] running `Command { std: "docker" "start" "-a" "fc1b85b4b115ad5115866f44830154ed73a294fac4418bc6c1b17298a67ab4cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking siphasher v0.3.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mayimc v0.1.0 (/opt/rustwide/workdir/mayimc)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "fc1b85b4b115ad5115866f44830154ed73a294fac4418bc6c1b17298a67ab4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc1b85b4b115ad5115866f44830154ed73a294fac4418bc6c1b17298a67ab4cb", kill_on_drop: false }`
[INFO] [stdout] fc1b85b4b115ad5115866f44830154ed73a294fac4418bc6c1b17298a67ab4cb