[INFO] cloning repository https://github.com/mikaelmello/rox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikaelmello/rox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaelmello%2Frox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaelmello%2Frox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f401541291d8073e22e93bd541b8b424abc4b404
[INFO] checking mikaelmello/rox against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaelmello%2Frox" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikaelmello/rox 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/mikaelmello/rox
[INFO] finished tweaking git repo https://github.com/mikaelmello/rox
[INFO] tweaked toml for git repo https://github.com/mikaelmello/rox written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mikaelmello/rox 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-code v2.3.0
[INFO] [stderr]   Downloaded str-buf v1.0.5
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded rustyline v8.2.0
[INFO] [stderr]   Downloaded unicode_reader v1.0.1
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded clipboard-win v4.2.1
[INFO] [stderr]   Downloaded fd-lock v2.0.0
[INFO] [stderr]   Downloaded radix_trie v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c20b89aaf4989b3e3872ceabf0ec3417da40f946241ad2149636ba9a494d10a1
[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" "c20b89aaf4989b3e3872ceabf0ec3417da40f946241ad2149636ba9a494d10a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c20b89aaf4989b3e3872ceabf0ec3417da40f946241ad2149636ba9a494d10a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c20b89aaf4989b3e3872ceabf0ec3417da40f946241ad2149636ba9a494d10a1", kill_on_drop: false }`
[INFO] [stdout] c20b89aaf4989b3e3872ceabf0ec3417da40f946241ad2149636ba9a494d10a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 502904f29c577190277f8a321bdd528db8d7708b90e2fb3271623eb3a86dcc41
[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" "502904f29c577190277f8a321bdd528db8d7708b90e2fb3271623eb3a86dcc41", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking unicode_reader v1.0.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking rox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `line`
[INFO] [stdout]   --> src/lexer/location.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn line(&self) -> isize {
[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: `synchronize`
[INFO] [stdout]   --> src/parser/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn synchronize(&mut self) -> Result<(), ParseError> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `line`
[INFO] [stdout]   --> src/lexer/location.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn line(&self) -> isize {
[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: `synchronize`
[INFO] [stdout]   --> src/parser/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn synchronize(&mut self) -> Result<(), ParseError> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.16s
[INFO] running `Command { std: "docker" "inspect" "502904f29c577190277f8a321bdd528db8d7708b90e2fb3271623eb3a86dcc41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "502904f29c577190277f8a321bdd528db8d7708b90e2fb3271623eb3a86dcc41", kill_on_drop: false }`
[INFO] [stdout] 502904f29c577190277f8a321bdd528db8d7708b90e2fb3271623eb3a86dcc41