[INFO] fetching crate compiler_builtins 0.1.104...
[INFO] checking compiler_builtins-0.1.104 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate compiler_builtins 0.1.104 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate compiler_builtins 0.1.104 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compiler_builtins 0.1.104
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate compiler_builtins 0.1.104
[INFO] tweaked toml for crates.io crate compiler_builtins 0.1.104 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate compiler_builtins 0.1.104 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.0
[INFO] [stderr]   Downloaded rustc-std-workspace-core v1.0.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21584e262d368dc5957d249e119757aa1876d3d108ca3e2b70919784e59df91c
[INFO] running `Command { std: "docker" "start" "-a" "21584e262d368dc5957d249e119757aa1876d3d108ca3e2b70919784e59df91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21584e262d368dc5957d249e119757aa1876d3d108ca3e2b70919784e59df91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21584e262d368dc5957d249e119757aa1876d3d108ca3e2b70919784e59df91c", kill_on_drop: false }`
[INFO] [stdout] 21584e262d368dc5957d249e119757aa1876d3d108ca3e2b70919784e59df91c
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7262ab2ad54b3c28e80861592918ef8753a7dd91c9cf5d0edd6a50ce404efd2b
[INFO] running `Command { std: "docker" "start" "-a" "7262ab2ad54b3c28e80861592918ef8753a7dd91c9cf5d0edd6a50ce404efd2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiler_builtins v0.1.104 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/float/mod.rs:77:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Float:
[INFO] [stdout]     |                  ----- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77  |     fn eq_repr(self, rhs: Self) -> bool;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80  |     fn sign(self) -> bool;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     fn exp(self) -> Self::ExpInt;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 86  |     fn frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     fn imp_frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn from_parts(sign: bool, exponent: Self::Int, significand: Self::Int) -> Self;
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn is_subnormal(self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `wrapping_neg` and `rotate_left` are never used
[INFO] [stdout]   --> src/int/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) trait Int:
[INFO] [stdout]    |                  --- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn wrapping_neg(self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn rotate_left(self, other: u32) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/float/mod.rs:77:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Float:
[INFO] [stdout]     |                  ----- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77  |     fn eq_repr(self, rhs: Self) -> bool;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80  |     fn sign(self) -> bool;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     fn exp(self) -> Self::ExpInt;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 86  |     fn frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     fn imp_frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn from_parts(sign: bool, exponent: Self::Int, significand: Self::Int) -> Self;
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn is_subnormal(self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `wrapping_neg` and `rotate_left` are never used
[INFO] [stdout]   --> src/int/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) trait Int:
[INFO] [stdout]    |                  --- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn wrapping_neg(self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn rotate_left(self, other: u32) -> Self;
[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] [stdout] error[E0463]: can't find crate for `panic_handler`
[INFO] [stdout]   --> examples/intrinsics.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate panic_handler;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compiler_builtins` (example "intrinsics") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "7262ab2ad54b3c28e80861592918ef8753a7dd91c9cf5d0edd6a50ce404efd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7262ab2ad54b3c28e80861592918ef8753a7dd91c9cf5d0edd6a50ce404efd2b", kill_on_drop: false }`
[INFO] [stdout] 7262ab2ad54b3c28e80861592918ef8753a7dd91c9cf5d0edd6a50ce404efd2b
[INFO] checking compiler_builtins-0.1.104 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate compiler_builtins 0.1.104 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate compiler_builtins 0.1.104 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compiler_builtins 0.1.104
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate compiler_builtins 0.1.104
[INFO] tweaked toml for crates.io crate compiler_builtins 0.1.104 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate compiler_builtins 0.1.104 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b5b87e506666cedaaba1de5b6b6efdc2ec270dfb4c97af6cfeb77c39d6b596a
[INFO] running `Command { std: "docker" "start" "-a" "4b5b87e506666cedaaba1de5b6b6efdc2ec270dfb4c97af6cfeb77c39d6b596a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b5b87e506666cedaaba1de5b6b6efdc2ec270dfb4c97af6cfeb77c39d6b596a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b5b87e506666cedaaba1de5b6b6efdc2ec270dfb4c97af6cfeb77c39d6b596a", kill_on_drop: false }`
[INFO] [stdout] 4b5b87e506666cedaaba1de5b6b6efdc2ec270dfb4c97af6cfeb77c39d6b596a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2545b19a59ad70eb04832db2a2e7fea3338a43de047e845b1214aa2eee32f8a7
[INFO] running `Command { std: "docker" "start" "-a" "2545b19a59ad70eb04832db2a2e7fea3338a43de047e845b1214aa2eee32f8a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiler_builtins v0.1.104 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/float/mod.rs:77:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Float:
[INFO] [stdout]     |                  ----- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77  |     fn eq_repr(self, rhs: Self) -> bool;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80  |     fn sign(self) -> bool;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     fn exp(self) -> Self::ExpInt;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 86  |     fn frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     fn imp_frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn from_parts(sign: bool, exponent: Self::Int, significand: Self::Int) -> Self;
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn is_subnormal(self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `wrapping_neg` and `rotate_left` are never used
[INFO] [stdout]   --> src/int/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) trait Int:
[INFO] [stdout]    |                  --- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn wrapping_neg(self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn rotate_left(self, other: u32) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/float/mod.rs:77:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Float:
[INFO] [stdout]     |                  ----- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77  |     fn eq_repr(self, rhs: Self) -> bool;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80  |     fn sign(self) -> bool;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     fn exp(self) -> Self::ExpInt;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 86  |     fn frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     fn imp_frac(self) -> Self::Int;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn from_parts(sign: bool, exponent: Self::Int, significand: Self::Int) -> Self;
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn is_subnormal(self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `wrapping_neg` and `rotate_left` are never used
[INFO] [stdout]   --> src/int/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) trait Int:
[INFO] [stdout]    |                  --- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn wrapping_neg(self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn rotate_left(self, other: u32) -> Self;
[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] [stdout] error[E0463]: can't find crate for `panic_handler`
[INFO] [stdout]   --> examples/intrinsics.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate panic_handler;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compiler_builtins` (example "intrinsics") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "2545b19a59ad70eb04832db2a2e7fea3338a43de047e845b1214aa2eee32f8a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2545b19a59ad70eb04832db2a2e7fea3338a43de047e845b1214aa2eee32f8a7", kill_on_drop: false }`
[INFO] [stdout] 2545b19a59ad70eb04832db2a2e7fea3338a43de047e845b1214aa2eee32f8a7
