[INFO] updating cached repository https://github.com/ZanderBrown/aqaval
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 893b664202f0816399f197a8ad09bcfe534a3935
[INFO] checking ZanderBrown/aqaval against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZanderBrown%2Faqaval" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZanderBrown/aqaval on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ZanderBrown/aqaval
[INFO] finished tweaking git repo https://github.com/ZanderBrown/aqaval
[INFO] tweaked toml for git repo https://github.com/ZanderBrown/aqaval written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ZanderBrown/aqaval already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa7e47b58316d04f67f847794c88607b9a2ff23bd7022e8d31f11767af97fb2d
[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" "fa7e47b58316d04f67f847794c88607b9a2ff23bd7022e8d31f11767af97fb2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa7e47b58316d04f67f847794c88607b9a2ff23bd7022e8d31f11767af97fb2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7e47b58316d04f67f847794c88607b9a2ff23bd7022e8d31f11767af97fb2d", kill_on_drop: false }`
[INFO] [stdout] fa7e47b58316d04f67f847794c88607b9a2ff23bd7022e8d31f11767af97fb2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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] bc6a491e116c65fa55d839c8be81bf6fcea4ce3cf76d3915ef21325f706db0a0
[INFO] running `Command { std: "docker" "start" "-a" "bc6a491e116c65fa55d839c8be81bf6fcea4ce3cf76d3915ef21325f706db0a0", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling readline-sys v0.0.12
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking rand v0.5.1
[INFO] [stderr]     Checking readline v0.0.13
[INFO] [stderr]     Checking aqaval v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/builtin.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn init(store: &mut Variables) {
[INFO] [stdout]     |                         ^^^^^^^^^ help: use `dyn`: `dyn Variables`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parse.rs:14:18
[INFO] [stdout]    |
[INFO] [stdout] 14 |     parser: &mut FnMut(&mut Tokens) -> Result<T, Syntax>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Tokens) -> Result<T, Syntax>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/token.rs:199:46
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn read_while(&mut self, predicate: &mut FnMut(&mut Self, char) -> bool) -> String {
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, char) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/builtin.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn init(store: &mut Variables) {
[INFO] [stdout]     |                         ^^^^^^^^^ help: use `dyn`: `dyn Variables`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parse.rs:14:18
[INFO] [stdout]    |
[INFO] [stdout] 14 |     parser: &mut FnMut(&mut Tokens) -> Result<T, Syntax>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Tokens) -> Result<T, Syntax>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/token.rs:199:46
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn read_while(&mut self, predicate: &mut FnMut(&mut Self, char) -> bool) -> String {
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, char) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:253:37
[INFO] [stdout]     |
[INFO] [stdout] 253 | ...                   let mut curr = store
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/node.rs:253:37
[INFO] [stdout]     |
[INFO] [stdout] 253 | ...                   let mut curr = store
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `Command { std: "docker" "inspect" "bc6a491e116c65fa55d839c8be81bf6fcea4ce3cf76d3915ef21325f706db0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6a491e116c65fa55d839c8be81bf6fcea4ce3cf76d3915ef21325f706db0a0", kill_on_drop: false }`
[INFO] [stdout] bc6a491e116c65fa55d839c8be81bf6fcea4ce3cf76d3915ef21325f706db0a0