[INFO] crate merkle 1.10.0 is already in cache
[INFO] extracting crate merkle 1.10.0 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/merkle/1.10.0
[INFO] extracting crate merkle 1.10.0 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/merkle/1.10.0
[INFO] validating manifest of merkle-1.10.0 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of merkle-1.10.0 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing merkle-1.10.0
[INFO] finished frobbing merkle-1.10.0
[INFO] frobbed toml for merkle-1.10.0 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/merkle/1.10.0/Cargo.toml
[INFO] started frobbing merkle-1.10.0
[INFO] finished frobbing merkle-1.10.0
[INFO] frobbed toml for merkle-1.10.0 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/merkle/1.10.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking merkle-1.10.0 against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-7/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/merkle/1.10.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3c7c2584e473b2de16ec2bc9e7c30ea7de2666222f6b3374ee31fcaa5b400a0e
[INFO] running `"docker" "start" "-a" "3c7c2584e473b2de16ec2bc9e7c30ea7de2666222f6b3374ee31fcaa5b400a0e"`
[INFO] [stderr]    Compiling merkle v1.10.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]   --> benches/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]  --> benches/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | extern crate rand;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> benches/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add #![feature(rustc_private)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::IsaacRng': import from rand_isaac crate instead, or use the newer Hc128Rng
[INFO] [stderr]   --> benches/lib.rs:59:19
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> benches/lib.rs:59:19
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add #![feature(rustc_private)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::IsaacRng': import from rand_isaac crate instead, or use the newer Hc128Rng
[INFO] [stderr]   --> benches/lib.rs:74:19
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> benches/lib.rs:74:19
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add #![feature(rustc_private)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::IsaacRng': import from rand_isaac crate instead, or use the newer Hc128Rng
[INFO] [stderr]   --> benches/lib.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> benches/lib.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add #![feature(rustc_private)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::IsaacRng': import from rand_isaac crate instead, or use the newer Hc128Rng
[INFO] [stderr]    --> benches/lib.rs:115:19
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]    --> benches/lib.rs:115:19
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]     = help: add #![feature(rustc_private)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new_unseeded` found for type `rand::IsaacRng` in the current scope
[INFO] [stderr]   --> benches/lib.rs:59:35
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ function or associated item not found in `rand::IsaacRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new_unseeded` found for type `rand::IsaacRng` in the current scope
[INFO] [stderr]   --> benches/lib.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ function or associated item not found in `rand::IsaacRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new_unseeded` found for type `rand::IsaacRng` in the current scope
[INFO] [stderr]   --> benches/lib.rs:93:35
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]    |                                   ^^^^^^^^^^^^ function or associated item not found in `rand::IsaacRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new_unseeded` found for type `rand::IsaacRng` in the current scope
[INFO] [stderr]    --> benches/lib.rs:115:35
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^ function or associated item not found in `rand::IsaacRng`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `merkle`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3c7c2584e473b2de16ec2bc9e7c30ea7de2666222f6b3374ee31fcaa5b400a0e"`
[INFO] running `"docker" "rm" "-f" "3c7c2584e473b2de16ec2bc9e7c30ea7de2666222f6b3374ee31fcaa5b400a0e"`
[INFO] [stdout] 3c7c2584e473b2de16ec2bc9e7c30ea7de2666222f6b3374ee31fcaa5b400a0e