[INFO] fetching crate boa_gc 0.17.3...
[INFO] checking boa_gc-0.17.3 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate boa_gc 0.17.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate boa_gc 0.17.3 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 boa_gc 0.17.3
[INFO] finished tweaking crates.io crate boa_gc 0.17.3
[INFO] tweaked toml for crates.io crate boa_gc 0.17.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thin-vec v0.2.13
[INFO] [stderr]   Downloaded synstructure v0.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3ec4e6c55e9bb2f0c63efb9b09892523dfa0138e76c028f374eff006fe81cc8e
[INFO] running `Command { std: "docker" "start" "-a" "3ec4e6c55e9bb2f0c63efb9b09892523dfa0138e76c028f374eff006fe81cc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec4e6c55e9bb2f0c63efb9b09892523dfa0138e76c028f374eff006fe81cc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec4e6c55e9bb2f0c63efb9b09892523dfa0138e76c028f374eff006fe81cc8e", kill_on_drop: false }`
[INFO] [stdout] 3ec4e6c55e9bb2f0c63efb9b09892523dfa0138e76c028f374eff006fe81cc8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bf87489d64aaee6c3eeeee9d9216d40e49d2c021d2f3c4ebcbb514fbf8bd7a08
[INFO] running `Command { std: "docker" "start" "-a" "bf87489d64aaee6c3eeeee9d9216d40e49d2c021d2f3c4ebcbb514fbf8bd7a08", kill_on_drop: false }`
[INFO] [stderr]     Checking boa_profiler v0.17.3
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling boa_macros v0.17.3
[INFO] [stderr]     Checking boa_gc v0.17.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     unused_tuple_struct_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToOwned` is imported redundantly
[INFO] [stdout]   --> src/trace.rs:2:19
[INFO] [stdout]    |
[INFO] [stdout] 2  |     borrow::{Cow, ToOwned},
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]   --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToOwned` is already defined here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     unused_tuple_struct_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToOwned` is imported redundantly
[INFO] [stdout]   --> src/trace.rs:2:19
[INFO] [stdout]    |
[INFO] [stdout] 2  |     borrow::{Cow, ToOwned},
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]   --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToOwned` is already defined here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "bf87489d64aaee6c3eeeee9d9216d40e49d2c021d2f3c4ebcbb514fbf8bd7a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf87489d64aaee6c3eeeee9d9216d40e49d2c021d2f3c4ebcbb514fbf8bd7a08", kill_on_drop: false }`
[INFO] [stdout] bf87489d64aaee6c3eeeee9d9216d40e49d2c021d2f3c4ebcbb514fbf8bd7a08
[INFO] checking boa_gc-0.17.3 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate boa_gc 0.17.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate boa_gc 0.17.3 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 boa_gc 0.17.3
[INFO] finished tweaking crates.io crate boa_gc 0.17.3
[INFO] tweaked toml for crates.io crate boa_gc 0.17.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0447fc9a7be65a0f1b705639c46a9849eb27476a7056f5fbc02d4950a3098062
[INFO] running `Command { std: "docker" "start" "-a" "0447fc9a7be65a0f1b705639c46a9849eb27476a7056f5fbc02d4950a3098062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0447fc9a7be65a0f1b705639c46a9849eb27476a7056f5fbc02d4950a3098062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0447fc9a7be65a0f1b705639c46a9849eb27476a7056f5fbc02d4950a3098062", kill_on_drop: false }`
[INFO] [stdout] 0447fc9a7be65a0f1b705639c46a9849eb27476a7056f5fbc02d4950a3098062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 612eec5b10ffc93746f32cbfede4de5817a368c4cd433450e7b70ad2f8befdcb
[INFO] running `Command { std: "docker" "start" "-a" "612eec5b10ffc93746f32cbfede4de5817a368c4cd433450e7b70ad2f8befdcb", kill_on_drop: false }`
[INFO] [stderr]     Checking boa_profiler v0.17.3
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling boa_macros v0.17.3
[INFO] [stderr]     Checking boa_gc v0.17.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     unused_tuple_struct_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToOwned` is imported redundantly
[INFO] [stdout]   --> src/trace.rs:2:19
[INFO] [stdout]    |
[INFO] [stdout] 2  |     borrow::{Cow, ToOwned},
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]   --> /rustc/bfe97fcae016881ad333f0ff8cea2cadb9cf136c/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToOwned` is already defined here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     unused_tuple_struct_fields,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToOwned` is imported redundantly
[INFO] [stdout]   --> src/trace.rs:2:19
[INFO] [stdout]    |
[INFO] [stdout] 2  |     borrow::{Cow, ToOwned},
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]   --> /rustc/bfe97fcae016881ad333f0ff8cea2cadb9cf136c/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToOwned` is already defined here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "612eec5b10ffc93746f32cbfede4de5817a368c4cd433450e7b70ad2f8befdcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612eec5b10ffc93746f32cbfede4de5817a368c4cd433450e7b70ad2f8befdcb", kill_on_drop: false }`
[INFO] [stdout] 612eec5b10ffc93746f32cbfede4de5817a368c4cd433450e7b70ad2f8befdcb
