[INFO] fetching crate alloc-track 0.4.0...
[INFO] checking alloc-track-0.4.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate alloc-track 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate alloc-track 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate alloc-track 0.4.0
[INFO] tweaked toml for crates.io crate alloc-track 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate alloc-track 0.4.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate alloc-track 0.4.0 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e380c04df2f3ae5ddb50c65c7a31ebb95b8636d41414ec967a15d989535b753d
[INFO] running `Command { std: "docker" "start" "-a" "e380c04df2f3ae5ddb50c65c7a31ebb95b8636d41414ec967a15d989535b753d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e380c04df2f3ae5ddb50c65c7a31ebb95b8636d41414ec967a15d989535b753d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e380c04df2f3ae5ddb50c65c7a31ebb95b8636d41414ec967a15d989535b753d", kill_on_drop: false }`
[INFO] [stdout] e380c04df2f3ae5ddb50c65c7a31ebb95b8636d41414ec967a15d989535b753d
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71667ae49925ca60625005493ef6f40f82b86e98123cc11ad7f65e378b3afc93
[INFO] running `Command { std: "docker" "start" "-a" "71667ae49925ca60625005493ef6f40f82b86e98123cc11ad7f65e378b3afc93", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]     Checking gimli v0.27.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking object v0.30.0
[INFO] [stderr]     Checking dashmap v5.4.0
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]     Checking alloc-track v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `procfs`
[INFO] [stdout]    --> src/lib.rs:303:17
[INFO] [stdout]     |
[INFO] [stdout] 303 |     for task in procfs::process::Process::myself().unwrap().tasks().unwrap() {
[INFO] [stdout]     |                 ^^^^^^ use of unresolved module or unlinked crate `procfs`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `procfs`, use `cargo add procfs` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `procfs`
[INFO] [stdout]    --> src/lib.rs:303:17
[INFO] [stdout]     |
[INFO] [stdout] 303 |     for task in procfs::process::Process::myself().unwrap().tasks().unwrap() {
[INFO] [stdout]     |                 ^^^^^^ use of unresolved module or unlinked crate `procfs`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `procfs`, use `cargo add procfs` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `libc`
[INFO] [stdout]    --> src/lib.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     libc::syscall(libc::SYS_gettid) as u32
[INFO] [stdout]     |     ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `libc`
[INFO] [stdout]    --> src/lib.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |     libc::syscall(libc::SYS_gettid) as u32
[INFO] [stdout]     |                   ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:304:20
[INFO] [stdout]     |
[INFO] [stdout] 304 |         let task = task.unwrap();
[INFO] [stdout]     |                    ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `libc`
[INFO] [stdout]    --> src/lib.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     libc::syscall(libc::SYS_gettid) as u32
[INFO] [stdout]     |     ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `libc`
[INFO] [stdout]    --> src/lib.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |     libc::syscall(libc::SYS_gettid) as u32
[INFO] [stdout]     |                   ^^^^ use of unresolved module or unlinked crate `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `libc`, use `cargo add libc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:304:20
[INFO] [stdout]     |
[INFO] [stdout] 304 |         let task = task.unwrap();
[INFO] [stdout]     |                    ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alloc-track` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alloc-track` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "71667ae49925ca60625005493ef6f40f82b86e98123cc11ad7f65e378b3afc93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71667ae49925ca60625005493ef6f40f82b86e98123cc11ad7f65e378b3afc93", kill_on_drop: false }`
[INFO] [stdout] 71667ae49925ca60625005493ef6f40f82b86e98123cc11ad7f65e378b3afc93