[INFO] cloning repository https://github.com/daboross/thread-local-pcg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daboross/thread-local-pcg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaboross%2Fthread-local-pcg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaboross%2Fthread-local-pcg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08fca97169d7123997e909aadef33b84d8cd862b
[INFO] checking daboross/thread-local-pcg against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaboross%2Fthread-local-pcg" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daboross/thread-local-pcg on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daboross/thread-local-pcg
[INFO] finished tweaking git repo https://github.com/daboross/thread-local-pcg
[INFO] tweaked toml for git repo https://github.com/daboross/thread-local-pcg written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/daboross/thread-local-pcg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/codahale/pcg.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/codahale/pcg.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b62d4951ac63c2ec35900348f7227437afe6641894e3db980229834791c5b99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b62d4951ac63c2ec35900348f7227437afe6641894e3db980229834791c5b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b62d4951ac63c2ec35900348f7227437afe6641894e3db980229834791c5b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b62d4951ac63c2ec35900348f7227437afe6641894e3db980229834791c5b99", kill_on_drop: false }`
[INFO] [stdout] 5b62d4951ac63c2ec35900348f7227437afe6641894e3db980229834791c5b99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 743e0c0686219ac68c574351a962284bdc10846d2a6d5b57983c5f732ed9caa4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "743e0c0686219ac68c574351a962284bdc10846d2a6d5b57983c5f732ed9caa4", kill_on_drop: false }`
[INFO] [stderr]     Checking pcg v0.0.1 (https://github.com/codahale/pcg.git#ab0a1581)
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/pcg-7b542cc1086e3f82/ab0a158/src/pcg.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{Rng, SeedableRng, Rand};
[INFO] [stdout]   |                              ^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `next_u32` is not a member of trait `Rng`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/pcg-7b542cc1086e3f82/ab0a158/src/pcg.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     fn next_u32(&mut self) -> u32 {
[INFO] [stdout] 50 | |         let old = self.state;
[INFO] [stdout] 51 | |         self.state = old.wrapping_mul(6364136223846793005)
[INFO] [stdout] 52 | |                         .wrapping_add(self.inc);
[INFO] [stdout] ...  |
[INFO] [stdout] 56 | |         out
[INFO] [stdout] 57 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/pcg-7b542cc1086e3f82/ab0a158/src/pcg.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     fn reseed(&mut self, seed: [u64; 2]) {
[INFO] [stdout] 63 | |         self.state = 0;
[INFO] [stdout] 64 | |         self.inc = (seed[1] << 1) | 1;
[INFO] [stdout] 65 | |         self.next_u32();
[INFO] [stdout] 66 | |         self.state = self.state.wrapping_add(seed[0]);
[INFO] [stdout] 67 | |         self.next_u32();
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `SeedableRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/pcg-7b542cc1086e3f82/ab0a158/src/pcg.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl SeedableRng<[u64; 2]> for PcgRng {
[INFO] [stdout]    |                  ^^^^^^^^ unexpected type argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0407, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pcg`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "743e0c0686219ac68c574351a962284bdc10846d2a6d5b57983c5f732ed9caa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743e0c0686219ac68c574351a962284bdc10846d2a6d5b57983c5f732ed9caa4", kill_on_drop: false }`
[INFO] [stdout] 743e0c0686219ac68c574351a962284bdc10846d2a6d5b57983c5f732ed9caa4