[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] testing k-onrad/iodine against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-onrad%2Fiodine" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k-onrad/iodine on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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-11/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", 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] f997940f9c6fbdfeda95a619a15b1e12dd4d5d68398acd7672c519e281cfb1a3
[INFO] running `Command { std: "docker" "start" "-a" "f997940f9c6fbdfeda95a619a15b1e12dd4d5d68398acd7672c519e281cfb1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f997940f9c6fbdfeda95a619a15b1e12dd4d5d68398acd7672c519e281cfb1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f997940f9c6fbdfeda95a619a15b1e12dd4d5d68398acd7672c519e281cfb1a3", kill_on_drop: false }`
[INFO] [stdout] f997940f9c6fbdfeda95a619a15b1e12dd4d5d68398acd7672c519e281cfb1a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c961dda8bac4551afcd0cb4eb261bccf41c37eba62a55dd61b9742898961f7c
[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" "8c961dda8bac4551afcd0cb4eb261bccf41c37eba62a55dd61b9742898961f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling 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]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.55s
[INFO] running `Command { std: "docker" "inspect" "8c961dda8bac4551afcd0cb4eb261bccf41c37eba62a55dd61b9742898961f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c961dda8bac4551afcd0cb4eb261bccf41c37eba62a55dd61b9742898961f7c", kill_on_drop: false }`
[INFO] [stdout] 8c961dda8bac4551afcd0cb4eb261bccf41c37eba62a55dd61b9742898961f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--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] 3a421709ae15ff6d60291844afc3393f80b99c756495cde259580093d7b39d47
[INFO] running `Command { std: "docker" "start" "-a" "3a421709ae15ff6d60291844afc3393f80b99c756495cde259580093d7b39d47", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 test [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "3a421709ae15ff6d60291844afc3393f80b99c756495cde259580093d7b39d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a421709ae15ff6d60291844afc3393f80b99c756495cde259580093d7b39d47", kill_on_drop: false }`
[INFO] [stdout] 3a421709ae15ff6d60291844afc3393f80b99c756495cde259580093d7b39d47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 140f5c3e2591d5c90fd2e6d2e1e97785fee2db1b5bbb8c4b8adf86fc8d4b4771
[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" "140f5c3e2591d5c90fd2e6d2e1e97785fee2db1b5bbb8c4b8adf86fc8d4b4771", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Unary`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> lib/parser/expression.rs:6:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 6 | /     Unary {
[INFO] [stdout] 
[INFO] [stderr] 7 | |         op: Token,
[INFO] [stdout] 
[INFO] [stderr] 8 | |         right: Box<Expression>,
[INFO] [stdout] running 0 tests
[INFO] [stderr] 9 | |     },
[INFO] [stdout] 
[INFO] [stderr]   | |_____^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binary`
[INFO] [stderr]   --> lib/parser/expression.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     Binary {
[INFO] [stderr] 11 | |         left: Box<Expression>,
[INFO] [stderr] 12 | |         op: Token,
[INFO] [stderr] 13 | |         right: Box<Expression>,
[INFO] [stderr] 14 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Grouping`
[INFO] [stderr]   --> lib/parser/expression.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     Grouping {
[INFO] [stderr] 16 | |         expr: Box<Expression>,
[INFO] [stderr] 17 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Literal`
[INFO] [stderr]   --> lib/parser/expression.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     Literal {
[INFO] [stderr] 19 | |         lit: Token,
[INFO] [stderr] 20 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unary`
[INFO] [stderr]  --> lib/parser/expression.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | /     Unary {
[INFO] [stderr] 7 | |         op: Token,
[INFO] [stderr] 8 | |         right: Box<Expression>,
[INFO] [stderr] 9 | |     },
[INFO] [stderr]   | |_____^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binary`
[INFO] [stderr]   --> lib/parser/expression.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     Binary {
[INFO] [stderr] 11 | |         left: Box<Expression>,
[INFO] [stderr] 12 | |         op: Token,
[INFO] [stderr] 13 | |         right: Box<Expression>,
[INFO] [stderr] 14 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Grouping`
[INFO] [stderr]   --> lib/parser/expression.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     Grouping {
[INFO] [stderr] 16 | |         expr: Box<Expression>,
[INFO] [stderr] 17 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Literal`
[INFO] [stderr]   --> lib/parser/expression.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     Literal {
[INFO] [stderr] 19 | |         lit: Token,
[INFO] [stderr] 20 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iodine_lib-e6aafc41af95d317
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iodine-7edf3293b1e7f40e
[INFO] [stderr]    Doc-tests iodine_lib
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "140f5c3e2591d5c90fd2e6d2e1e97785fee2db1b5bbb8c4b8adf86fc8d4b4771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140f5c3e2591d5c90fd2e6d2e1e97785fee2db1b5bbb8c4b8adf86fc8d4b4771", kill_on_drop: false }`
[INFO] [stdout] 140f5c3e2591d5c90fd2e6d2e1e97785fee2db1b5bbb8c4b8adf86fc8d4b4771