[INFO] fetching crate tyson 0.1.0...
[INFO] testing tyson-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate tyson 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate tyson 0.1.0
[INFO] finished tweaking crates.io crate tyson 0.1.0
[INFO] tweaked toml for crates.io crate tyson 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tyson 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7d6275a3013cc0764f9787705f409213e96fed9b3aef08879831756a89fb753
[INFO] running `Command { std: "docker" "start" "-a" "d7d6275a3013cc0764f9787705f409213e96fed9b3aef08879831756a89fb753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7d6275a3013cc0764f9787705f409213e96fed9b3aef08879831756a89fb753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d6275a3013cc0764f9787705f409213e96fed9b3aef08879831756a89fb753", kill_on_drop: false }`
[INFO] [stdout] d7d6275a3013cc0764f9787705f409213e96fed9b3aef08879831756a89fb753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65da854df55c172b355ee221e64bf6dd32a9e636727c429e57de60a3fcfa46ae
[INFO] running `Command { std: "docker" "start" "-a" "65da854df55c172b355ee221e64bf6dd32a9e636727c429e57de60a3fcfa46ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling custom_error v1.9.2
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling pest_meta v2.8.3
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]    Compiling tyson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]  --> src/errors.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct TySONError {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     msg: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TySONError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.60s
[INFO] running `Command { std: "docker" "inspect" "65da854df55c172b355ee221e64bf6dd32a9e636727c429e57de60a3fcfa46ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65da854df55c172b355ee221e64bf6dd32a9e636727c429e57de60a3fcfa46ae", kill_on_drop: false }`
[INFO] [stdout] 65da854df55c172b355ee221e64bf6dd32a9e636727c429e57de60a3fcfa46ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b97c98af2c04c7627cf957b2a2a0ae25681dda4ea809d226632b38f430a30a3
[INFO] running `Command { std: "docker" "start" "-a" "7b97c98af2c04c7627cf957b2a2a0ae25681dda4ea809d226632b38f430a30a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling tyson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]  --> src/errors.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct TySONError {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     msg: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TySONError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]  --> src/errors.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct TySONError {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     msg: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TySONError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "7b97c98af2c04c7627cf957b2a2a0ae25681dda4ea809d226632b38f430a30a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b97c98af2c04c7627cf957b2a2a0ae25681dda4ea809d226632b38f430a30a3", kill_on_drop: false }`
[INFO] [stdout] 7b97c98af2c04c7627cf957b2a2a0ae25681dda4ea809d226632b38f430a30a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e23537253b82035a6af6fc33391250847fdebcdd891201b8a236b5597b283d2f
[INFO] running `Command { std: "docker" "start" "-a" "e23537253b82035a6af6fc33391250847fdebcdd891201b8a236b5597b283d2f", kill_on_drop: false }`
[INFO] [stderr] warning: field `msg` is never read
[INFO] [stderr]  --> src/errors.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct TySONError {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 6 |     msg: String,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `TySONError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tyson` (lib) generated 1 warning
[INFO] [stderr] warning: `tyson` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tyson-2b7e6f59e28c6d63)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::de_se ... ok
[INFO] [stderr]    Doc-tests tyson
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "e23537253b82035a6af6fc33391250847fdebcdd891201b8a236b5597b283d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23537253b82035a6af6fc33391250847fdebcdd891201b8a236b5597b283d2f", kill_on_drop: false }`
[INFO] [stdout] e23537253b82035a6af6fc33391250847fdebcdd891201b8a236b5597b283d2f