[INFO] cloning repository https://github.com/k-onrad/iodine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k-onrad/iodine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-onrad%2Fiodine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-onrad%2Fiodine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 163d743d2be0b4b77e58a35c07ba0503114d972a
[INFO] checking k-onrad/iodine against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-onrad%2Fiodine" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k-onrad/iodine on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/k-onrad/iodine
[INFO] finished tweaking git repo https://github.com/k-onrad/iodine
[INFO] tweaked toml for git repo https://github.com/k-onrad/iodine written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/k-onrad/iodine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1174a3da553de8ca197e66ba91bc603ff20bd25dfb94be7f4d00b704aaf66f9
[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" "d1174a3da553de8ca197e66ba91bc603ff20bd25dfb94be7f4d00b704aaf66f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1174a3da553de8ca197e66ba91bc603ff20bd25dfb94be7f4d00b704aaf66f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1174a3da553de8ca197e66ba91bc603ff20bd25dfb94be7f4d00b704aaf66f9", kill_on_drop: false }`
[INFO] [stdout] d1174a3da553de8ca197e66ba91bc603ff20bd25dfb94be7f4d00b704aaf66f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06bd7e30648888db4448349edd4213409121cdf6ab9a61c8846cdde1a394f802
[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" "06bd7e30648888db4448349edd4213409121cdf6ab9a61c8846cdde1a394f802", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking siphasher v0.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking iodine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]  --> lib/parser/expression.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     Unary {
[INFO] [stdout] 7 | |         op: Token,
[INFO] [stdout] 8 | |         right: Box<Expression>,
[INFO] [stdout] 9 | |     },
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Binary`
[INFO] [stdout]   --> lib/parser/expression.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     Binary {
[INFO] [stdout] 11 | |         left: Box<Expression>,
[INFO] [stdout] 12 | |         op: Token,
[INFO] [stdout] 13 | |         right: Box<Expression>,
[INFO] [stdout] 14 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Grouping`
[INFO] [stdout]   --> lib/parser/expression.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     Grouping {
[INFO] [stdout] 16 | |         expr: Box<Expression>,
[INFO] [stdout] 17 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> lib/parser/expression.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     Literal {
[INFO] [stdout] 19 | |         lit: Token,
[INFO] [stdout] 20 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]  --> lib/parser/expression.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     Unary {
[INFO] [stdout] 7 | |         op: Token,
[INFO] [stdout] 8 | |         right: Box<Expression>,
[INFO] [stdout] 9 | |     },
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Binary`
[INFO] [stdout]   --> lib/parser/expression.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     Binary {
[INFO] [stdout] 11 | |         left: Box<Expression>,
[INFO] [stdout] 12 | |         op: Token,
[INFO] [stdout] 13 | |         right: Box<Expression>,
[INFO] [stdout] 14 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Grouping`
[INFO] [stdout]   --> lib/parser/expression.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     Grouping {
[INFO] [stdout] 16 | |         expr: Box<Expression>,
[INFO] [stdout] 17 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> lib/parser/expression.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     Literal {
[INFO] [stdout] 19 | |         lit: Token,
[INFO] [stdout] 20 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.50s
[INFO] running `Command { std: "docker" "inspect" "06bd7e30648888db4448349edd4213409121cdf6ab9a61c8846cdde1a394f802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06bd7e30648888db4448349edd4213409121cdf6ab9a61c8846cdde1a394f802", kill_on_drop: false }`
[INFO] [stdout] 06bd7e30648888db4448349edd4213409121cdf6ab9a61c8846cdde1a394f802