[INFO] cloning repository https://github.com/JohnBSmith/moss
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JohnBSmith/moss" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnBSmith%2Fmoss", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnBSmith%2Fmoss'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab23e4ae975fb32b056c1981929551af590e7305
[INFO] testing JohnBSmith/moss against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnBSmith%2Fmoss" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JohnBSmith/moss on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JohnBSmith/moss
[INFO] finished tweaking git repo https://github.com/JohnBSmith/moss
[INFO] tweaked toml for git repo https://github.com/JohnBSmith/moss written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/JohnBSmith/moss already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9ea48ea10ef5d2ddb947ef84fbe70d6dccc7be4d64cdbd70818527f8b73a9c0
[INFO] running `Command { std: "docker" "start" "-a" "f9ea48ea10ef5d2ddb947ef84fbe70d6dccc7be4d64cdbd70818527f8b73a9c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9ea48ea10ef5d2ddb947ef84fbe70d6dccc7be4d64cdbd70818527f8b73a9c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ea48ea10ef5d2ddb947ef84fbe70d6dccc7be4d64cdbd70818527f8b73a9c0", kill_on_drop: false }`
[INFO] [stdout] f9ea48ea10ef5d2ddb947ef84fbe70d6dccc7be4d64cdbd70818527f8b73a9c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 539274e68166a63cac2781f7c6175d2ab8f91e57dffc06a4038b52e60066fbe8
[INFO] running `Command { std: "docker" "start" "-a" "539274e68166a63cac2781f7c6175d2ab8f91e57dffc06a4038b52e60066fbe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling moss v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/vm.rs:4883:26
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => panic!(self.exception_to_string(&e))
[INFO] [stdout]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => panic!("{}", self.exception_to_string(&e))
[INFO] [stdout]      |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => std::panic::panic_any(self.exception_to_string(&e))
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program`
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     program: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.12s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "539274e68166a63cac2781f7c6175d2ab8f91e57dffc06a4038b52e60066fbe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539274e68166a63cac2781f7c6175d2ab8f91e57dffc06a4038b52e60066fbe8", kill_on_drop: false }`
[INFO] [stdout] 539274e68166a63cac2781f7c6175d2ab8f91e57dffc06a4038b52e60066fbe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc76b4b5e250a2587a227e0916a63ec43aa0df2c948d8d534aba1b629969c9c0
[INFO] running `Command { std: "docker" "start" "-a" "bc76b4b5e250a2587a227e0916a63ec43aa0df2c948d8d534aba1b629969c9c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling moss v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/vm.rs:4883:26
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => panic!(self.exception_to_string(&e))
[INFO] [stdout]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => panic!("{}", self.exception_to_string(&e))
[INFO] [stdout]      |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => std::panic::panic_any(self.exception_to_string(&e))
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program`
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     program: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/vm.rs:4883:26
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => panic!(self.exception_to_string(&e))
[INFO] [stdout]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => panic!("{}", self.exception_to_string(&e))
[INFO] [stdout]      |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 4883 |         Err(e) => std::panic::panic_any(self.exception_to_string(&e))
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "bc76b4b5e250a2587a227e0916a63ec43aa0df2c948d8d534aba1b629969c9c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc76b4b5e250a2587a227e0916a63ec43aa0df2c948d8d534aba1b629969c9c0", kill_on_drop: false }`
[INFO] [stdout] bc76b4b5e250a2587a227e0916a63ec43aa0df2c948d8d534aba1b629969c9c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 26900eebbe02be2e123f96dc6683496fc3ecff24dfa20e6895712218954b18ca
[INFO] running `Command { std: "docker" "start" "-a" "26900eebbe02be2e123f96dc6683496fc3ecff24dfa20e6895712218954b18ca", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/vm.rs:4883:26
[INFO] [stderr]      |
[INFO] [stderr] 4883 |         Err(e) => panic!(self.exception_to_string(&e))
[INFO] [stderr]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]      = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]      |
[INFO] [stderr] 4883 |         Err(e) => panic!("{}", self.exception_to_string(&e))
[INFO] [stderr]      |                          ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]      |
[INFO] [stderr] 4883 |         Err(e) => std::panic::panic_any(self.exception_to_string(&e))
[INFO] [stderr]      |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/vm.rs:4883:26
[INFO] [stderr]      |
[INFO] [stderr] 4883 |         Err(e) => panic!(self.exception_to_string(&e))
[INFO] [stderr]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]      = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]      |
[INFO] [stderr] 4883 |         Err(e) => panic!("{}", self.exception_to_string(&e))
[INFO] [stderr]      |                          ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]      |
[INFO] [stderr] 4883 |         Err(e) => std::panic::panic_any(self.exception_to_string(&e))
[INFO] [stderr]      |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `program`
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     program: Option<String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/moss-f0dca11c5a95a75c)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/moss-e39f88c4b98337b5)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests moss
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "26900eebbe02be2e123f96dc6683496fc3ecff24dfa20e6895712218954b18ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26900eebbe02be2e123f96dc6683496fc3ecff24dfa20e6895712218954b18ca", kill_on_drop: false }`
[INFO] [stdout] 26900eebbe02be2e123f96dc6683496fc3ecff24dfa20e6895712218954b18ca