[INFO] fetching crate imm_gc 0.2.1...
[INFO] checking imm_gc-0.2.1 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate imm_gc 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate imm_gc 0.2.1 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imm_gc 0.2.1
[INFO] finished tweaking crates.io crate imm_gc 0.2.1
[INFO] tweaked toml for crates.io crate imm_gc 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c16c1a16a190330238962275df0f34dd7a9d8442f6dfc8cd0a7e4a423bd211f
[INFO] running `Command { std: "docker" "start" "-a" "6c16c1a16a190330238962275df0f34dd7a9d8442f6dfc8cd0a7e4a423bd211f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c16c1a16a190330238962275df0f34dd7a9d8442f6dfc8cd0a7e4a423bd211f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c16c1a16a190330238962275df0f34dd7a9d8442f6dfc8cd0a7e4a423bd211f", kill_on_drop: false }`
[INFO] [stdout] 6c16c1a16a190330238962275df0f34dd7a9d8442f6dfc8cd0a7e4a423bd211f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7ec2a64b3adecc00a07f0cb2d18d8a4d6767b12d8e9444f2fae156a48522dc0
[INFO] running `Command { std: "docker" "start" "-a" "d7ec2a64b3adecc00a07f0cb2d18d8a4d6767b12d8e9444f2fae156a48522dc0", kill_on_drop: false }`
[INFO] [stderr]     Checking imm_gc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/lib.rs:101:23
[INFO] [stdout]     |
[INFO] [stdout] 101 |               Box::leak(box GcInner {
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 102 | |                 ref_count: Cell::new(1),
[INFO] [stdout] 103 | |                 internal_ref_count: Cell::new(0),
[INFO] [stdout] 104 | |                 done: Cell::new(false),
[INFO] [stdout] 105 | |                 dropped: Cell::new(false),
[INFO] [stdout] 106 | |                 value: MaybeUninit::new(value),
[INFO] [stdout] 107 | |             })
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 101 ~             Box::leak(Box::new(GcInner {
[INFO] [stdout] 102 |                 ref_count: Cell::new(1),
[INFO] [stdout] ...
[INFO] [stdout] 106 |                 value: MaybeUninit::new(value),
[INFO] [stdout] 107 ~             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/lib.rs:101:23
[INFO] [stdout]     |
[INFO] [stdout] 101 |               Box::leak(box GcInner {
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 102 | |                 ref_count: Cell::new(1),
[INFO] [stdout] 103 | |                 internal_ref_count: Cell::new(0),
[INFO] [stdout] 104 | |                 done: Cell::new(false),
[INFO] [stdout] 105 | |                 dropped: Cell::new(false),
[INFO] [stdout] 106 | |                 value: MaybeUninit::new(value),
[INFO] [stdout] 107 | |             })
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 101 ~             Box::leak(Box::new(GcInner {
[INFO] [stdout] 102 |                 ref_count: Cell::new(1),
[INFO] [stdout] ...
[INFO] [stdout] 106 |                 value: MaybeUninit::new(value),
[INFO] [stdout] 107 ~             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/lib.rs:154:23
[INFO] [stdout]     |
[INFO] [stdout] 154 |               Box::leak(box GcInner {
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 155 | |                 ref_count: Cell::new(1),
[INFO] [stdout] 156 | |                 internal_ref_count: Cell::new(0),
[INFO] [stdout] 157 | |                 done: Cell::new(false),
[INFO] [stdout] 158 | |                 dropped: Cell::new(true),
[INFO] [stdout] 159 | |                 value: MaybeUninit::<T>::uninit(),
[INFO] [stdout] 160 | |             })
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 154 ~             Box::leak(Box::new(GcInner {
[INFO] [stdout] 155 |                 ref_count: Cell::new(1),
[INFO] [stdout] ...
[INFO] [stdout] 159 |                 value: MaybeUninit::<T>::uninit(),
[INFO] [stdout] 160 ~             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/lib.rs:154:23
[INFO] [stdout]     |
[INFO] [stdout] 154 |               Box::leak(box GcInner {
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 155 | |                 ref_count: Cell::new(1),
[INFO] [stdout] 156 | |                 internal_ref_count: Cell::new(0),
[INFO] [stdout] 157 | |                 done: Cell::new(false),
[INFO] [stdout] 158 | |                 dropped: Cell::new(true),
[INFO] [stdout] 159 | |                 value: MaybeUninit::<T>::uninit(),
[INFO] [stdout] 160 | |             })
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 154 ~             Box::leak(Box::new(GcInner {
[INFO] [stdout] 155 |                 ref_count: Cell::new(1),
[INFO] [stdout] ...
[INFO] [stdout] 159 |                 value: MaybeUninit::<T>::uninit(),
[INFO] [stdout] 160 ~             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(cell_update, maybe_uninit_extra, box_syntax, allocator_api)]
[INFO] [stdout]   |                                             ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(cell_update, maybe_uninit_extra, box_syntax, allocator_api)]
[INFO] [stdout]   |                                             ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_extra` has been stable since 1.60.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(cell_update, maybe_uninit_extra, box_syntax, allocator_api)]
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_extra` has been stable since 1.60.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(cell_update, maybe_uninit_extra, box_syntax, allocator_api)]
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |             Box::leak(box GcInner {
[INFO] [stdout]     |             ^^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout] ...
[INFO] [stdout] 108 |             .into(),
[INFO] [stdout]     |              ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 101 |             Box::<T, A>::leak(box GcInner {
[INFO] [stdout]     |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |             Box::leak(box GcInner {
[INFO] [stdout]     |             ^^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout] ...
[INFO] [stdout] 161 |             .into(),
[INFO] [stdout]     |              ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 154 |             Box::<T, A>::leak(box GcInner {
[INFO] [stdout]     |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |             Box::leak(box GcInner {
[INFO] [stdout]     |             ^^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout] ...
[INFO] [stdout] 108 |             .into(),
[INFO] [stdout]     |              ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 101 |             Box::<T, A>::leak(box GcInner {
[INFO] [stdout]     |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |             Box::leak(box GcInner {
[INFO] [stdout]     |             ^^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Box`
[INFO] [stdout] ...
[INFO] [stdout] 161 |             .into(),
[INFO] [stdout]     |              ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 154 |             Box::<T, A>::leak(box GcInner {
[INFO] [stdout]     |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imm_gc` (lib) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0282, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imm_gc` (lib test) due to 5 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d7ec2a64b3adecc00a07f0cb2d18d8a4d6767b12d8e9444f2fae156a48522dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ec2a64b3adecc00a07f0cb2d18d8a4d6767b12d8e9444f2fae156a48522dc0", kill_on_drop: false }`
[INFO] [stdout] d7ec2a64b3adecc00a07f0cb2d18d8a4d6767b12d8e9444f2fae156a48522dc0
